commit:     7a9021e933f9ce4c1f18c8cc896cff7a8afb4c98
Author:     Arisu Tachibana <alicef <AT> gentoo <DOT> org>
AuthorDate: Thu Aug 21 05:21:05 2025 +0000
Commit:     Arisu Tachibana <alicef <AT> gentoo <DOT> org>
CommitDate: Thu Aug 21 05:21:05 2025 +0000
URL:        https://gitweb.gentoo.org/proj/linux-patches.git/commit/?id=7a9021e9

Linux patch 5.4.284

Signed-off-by: Arisu Tachibana <alicef <AT> gentoo.org>

 0000_README              |    4 +
 1283_linux-5.4.284.patch | 4051 ++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 4055 insertions(+)

diff --git a/0000_README b/0000_README
index dc1c2615..caac3acb 100644
--- a/0000_README
+++ b/0000_README
@@ -1175,6 +1175,10 @@ Patch:  1282_linux-5.4.283.patch
 From:   https://www.kernel.org
 Desc:   Linux 5.4.283
 
+Patch:  1283_linux-5.4.284.patch
+From:   https://www.kernel.org
+Desc:   Linux 5.4.284
+
 Patch:  1500_XATTR_USER_PREFIX.patch
 From:   https://bugs.gentoo.org/show_bug.cgi?id=470644
 Desc:   Support for namespace user.pax.* on tmpfs.

diff --git a/1283_linux-5.4.284.patch b/1283_linux-5.4.284.patch
new file mode 100644
index 00000000..c4475f53
--- /dev/null
+++ b/1283_linux-5.4.284.patch
@@ -0,0 +1,4051 @@
+diff --git a/Makefile b/Makefile
+index 362e593d630fe..6a4587f51d008 100644
+--- a/Makefile
++++ b/Makefile
+@@ -1,7 +1,7 @@
+ # SPDX-License-Identifier: GPL-2.0
+ VERSION = 5
+ PATCHLEVEL = 4
+-SUBLEVEL = 283
++SUBLEVEL = 284
+ EXTRAVERSION =
+ NAME = Kleptomaniac Octopus
+ 
+diff --git a/arch/arm64/include/asm/acpi.h b/arch/arm64/include/asm/acpi.h
+index a45366c3909be..cbf97e648d19c 100644
+--- a/arch/arm64/include/asm/acpi.h
++++ b/arch/arm64/include/asm/acpi.h
+@@ -110,6 +110,18 @@ static inline u32 get_acpi_id_for_cpu(unsigned int cpu)
+       return  acpi_cpu_get_madt_gicc(cpu)->uid;
+ }
+ 
++static inline int get_cpu_for_acpi_id(u32 uid)
++{
++      int cpu;
++
++      for (cpu = 0; cpu < nr_cpu_ids; cpu++)
++              if (acpi_cpu_get_madt_gicc(cpu) &&
++                  uid == get_acpi_id_for_cpu(cpu))
++                      return cpu;
++
++      return -EINVAL;
++}
++
+ static inline void arch_fix_phys_package_id(int num, u32 slot) { }
+ void __init acpi_init_cpus(void);
+ int apei_claim_sea(struct pt_regs *regs);
+diff --git a/arch/arm64/kernel/acpi_numa.c b/arch/arm64/kernel/acpi_numa.c
+index 048b75cadd2fd..c5feac18c238a 100644
+--- a/arch/arm64/kernel/acpi_numa.c
++++ b/arch/arm64/kernel/acpi_numa.c
+@@ -34,17 +34,6 @@ int __init acpi_numa_get_nid(unsigned int cpu)
+       return acpi_early_node_map[cpu];
+ }
+ 
+-static inline int get_cpu_for_acpi_id(u32 uid)
+-{
+-      int cpu;
+-
+-      for (cpu = 0; cpu < nr_cpu_ids; cpu++)
+-              if (uid == get_acpi_id_for_cpu(cpu))
+-                      return cpu;
+-
+-      return -EINVAL;
+-}
+-
+ static int __init acpi_parse_gicc_pxm(union acpi_subtable_headers *header,
+                                     const unsigned long end)
+ {
+diff --git a/arch/parisc/kernel/irq.c b/arch/parisc/kernel/irq.c
+index c4c06bcd04835..b4aa5af943ba5 100644
+--- a/arch/parisc/kernel/irq.c
++++ b/arch/parisc/kernel/irq.c
+@@ -520,7 +520,7 @@ void do_cpu_irq_mask(struct pt_regs *regs)
+ 
+       old_regs = set_irq_regs(regs);
+       local_irq_disable();
+-      irq_enter_rcu();
++      irq_enter();
+ 
+       eirr_val = mfctl(23) & cpu_eiem & per_cpu(local_ack_eiem, cpu);
+       if (!eirr_val)
+@@ -555,7 +555,7 @@ void do_cpu_irq_mask(struct pt_regs *regs)
+ #endif /* CONFIG_IRQSTACKS */
+ 
+  out:
+-      irq_exit_rcu();
++      irq_exit();
+       set_irq_regs(old_regs);
+       return;
+ 
+diff --git a/arch/um/drivers/line.c b/arch/um/drivers/line.c
+index d6a78c3548a55..de0ab2e455b03 100644
+--- a/arch/um/drivers/line.c
++++ b/arch/um/drivers/line.c
+@@ -383,6 +383,7 @@ int setup_one_line(struct line *lines, int n, char *init,
+                       parse_chan_pair(NULL, line, n, opts, error_out);
+                       err = 0;
+               }
++              *error_out = "configured as 'none'";
+       } else {
+               char *new = kstrdup(init, GFP_KERNEL);
+               if (!new) {
+@@ -406,6 +407,7 @@ int setup_one_line(struct line *lines, int n, char *init,
+                       }
+               }
+               if (err) {
++                      *error_out = "failed to parse channel pair";
+                       line->init_str = NULL;
+                       line->valid = 0;
+                       kfree(new);
+diff --git a/block/bio-integrity.c b/block/bio-integrity.c
+index 247f7c480e662..619ed4d84d50f 100644
+--- a/block/bio-integrity.c
++++ b/block/bio-integrity.c
+@@ -212,6 +212,7 @@ bool bio_integrity_prep(struct bio *bio)
+       unsigned int bytes, offset, i;
+       unsigned int intervals;
+       blk_status_t status;
++      gfp_t gfp = GFP_NOIO;
+ 
+       if (!bi)
+               return true;
+@@ -234,12 +235,20 @@ bool bio_integrity_prep(struct bio *bio)
+               if (!bi->profile->generate_fn ||
+                   !(bi->flags & BLK_INTEGRITY_GENERATE))
+                       return true;
++
++              /*
++               * Zero the memory allocated to not leak uninitialized kernel
++               * memory to disk.  For PI this only affects the app tag, but
++               * for non-integrity metadata it affects the entire metadata
++               * buffer.
++               */
++              gfp |= __GFP_ZERO;
+       }
+       intervals = bio_integrity_intervals(bi, bio_sectors(bio));
+ 
+       /* Allocate kernel buffer for protection data */
+       len = intervals * bi->tuple_size;
+-      buf = kmalloc(len, GFP_NOIO | q->bounce_gfp);
++      buf = kmalloc(len, gfp | q->bounce_gfp);
+       status = BLK_STS_RESOURCE;
+       if (unlikely(buf == NULL)) {
+               printk(KERN_ERR "could not allocate integrity buffer\n");
+diff --git a/drivers/acpi/acpi_processor.c b/drivers/acpi/acpi_processor.c
+index 2c4dda0787e84..c8338d6278578 100644
+--- a/drivers/acpi/acpi_processor.c
++++ b/drivers/acpi/acpi_processor.c
+@@ -388,7 +388,7 @@ static int acpi_processor_add(struct acpi_device *device,
+ 
+       result = acpi_processor_get_info(device);
+       if (result) /* Processor is not physically present or unavailable */
+-              return 0;
++              goto err_clear_driver_data;
+ 
+       BUG_ON(pr->id >= nr_cpu_ids);
+ 
+@@ -403,7 +403,7 @@ static int acpi_processor_add(struct acpi_device *device,
+                       "BIOS reported wrong ACPI id %d for the processor\n",
+                       pr->id);
+               /* Give up, but do not abort the namespace scan. */
+-              goto err;
++              goto err_clear_driver_data;
+       }
+       /*
+        * processor_device_array is not cleared on errors to allow buggy BIOS
+@@ -415,12 +415,12 @@ static int acpi_processor_add(struct acpi_device *device,
+       dev = get_cpu_device(pr->id);
+       if (!dev) {
+               result = -ENODEV;
+-              goto err;
++              goto err_clear_per_cpu;
+       }
+ 
+       result = acpi_bind_one(dev, device);
+       if (result)
+-              goto err;
++              goto err_clear_per_cpu;
+ 
+       pr->dev = dev;
+ 
+@@ -431,10 +431,11 @@ static int acpi_processor_add(struct acpi_device *device,
+       dev_err(dev, "Processor driver could not be attached\n");
+       acpi_unbind_one(dev);
+ 
+- err:
+-      free_cpumask_var(pr->throttling.shared_cpu_map);
+-      device->driver_data = NULL;
++ err_clear_per_cpu:
+       per_cpu(processors, pr->id) = NULL;
++ err_clear_driver_data:
++      device->driver_data = NULL;
++      free_cpumask_var(pr->throttling.shared_cpu_map);
+  err_free_pr:
+       kfree(pr);
+       return result;
+diff --git a/drivers/android/binder.c b/drivers/android/binder.c
+index 7a8cdecaf3483..30d71b928f0db 100644
+--- a/drivers/android/binder.c
++++ b/drivers/android/binder.c
+@@ -3534,6 +3534,7 @@ static void binder_transaction(struct binder_proc *proc,
+                */
+               copy_size = object_offset - user_offset;
+               if (copy_size && (user_offset > object_offset ||
++                              object_offset > tr->data_size ||
+                               binder_alloc_copy_user_to_buffer(
+                                       &target_proc->alloc,
+                                       t->buffer, user_offset,
+diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
+index 2ee0ee2b4752a..37b300b0857a9 100644
+--- a/drivers/ata/libata-core.c
++++ b/drivers/ata/libata-core.c
+@@ -6203,8 +6203,10 @@ struct ata_host *ata_host_alloc(struct device *dev, int 
max_ports)
+       }
+ 
+       dr = devres_alloc(ata_devres_release, 0, GFP_KERNEL);
+-      if (!dr)
++      if (!dr) {
++              kfree(host);
+               goto err_out;
++      }
+ 
+       devres_add(dev, dr);
+       dev_set_drvdata(dev, host);
+diff --git a/drivers/ata/pata_macio.c b/drivers/ata/pata_macio.c
+index 1bfd0154dad5d..a601768956e8e 100644
+--- a/drivers/ata/pata_macio.c
++++ b/drivers/ata/pata_macio.c
+@@ -540,7 +540,8 @@ static enum ata_completion_errors 
pata_macio_qc_prep(struct ata_queued_cmd *qc)
+ 
+               while (sg_len) {
+                       /* table overflow should never happen */
+-                      BUG_ON (pi++ >= MAX_DCMDS);
++                      if (WARN_ON_ONCE(pi >= MAX_DCMDS))
++                              return AC_ERR_SYSTEM;
+ 
+                       len = (sg_len < MAX_DBDMA_SEG) ? sg_len : MAX_DBDMA_SEG;
+                       table->command = cpu_to_le16(write ? OUTPUT_MORE: 
INPUT_MORE);
+@@ -552,11 +553,13 @@ static enum ata_completion_errors 
pata_macio_qc_prep(struct ata_queued_cmd *qc)
+                       addr += len;
+                       sg_len -= len;
+                       ++table;
++                      ++pi;
+               }
+       }
+ 
+       /* Should never happen according to Tejun */
+-      BUG_ON(!pi);
++      if (WARN_ON_ONCE(!pi))
++              return AC_ERR_SYSTEM;
+ 
+       /* Convert the last command to an input/output */
+       table--;
+diff --git a/drivers/base/devres.c b/drivers/base/devres.c
+index 5a84bafae3288..be87133d2cf1e 100644
+--- a/drivers/base/devres.c
++++ b/drivers/base/devres.c
+@@ -561,6 +561,7 @@ void * devres_open_group(struct device *dev, void *id, 
gfp_t gfp)
+       grp->id = grp;
+       if (id)
+               grp->id = id;
++      grp->color = 0;
+ 
+       spin_lock_irqsave(&dev->devres_lock, flags);
+       add_dr(dev, &grp->node[0]);
+diff --git a/drivers/clk/hisilicon/clk-hi6220.c 
b/drivers/clk/hisilicon/clk-hi6220.c
+index b2c5b6bbb1c13..e7cdf72d4b062 100644
+--- a/drivers/clk/hisilicon/clk-hi6220.c
++++ b/drivers/clk/hisilicon/clk-hi6220.c
+@@ -86,7 +86,8 @@ static void __init hi6220_clk_ao_init(struct device_node *np)
+       hisi_clk_register_gate_sep(hi6220_separated_gate_clks_ao,
+                               ARRAY_SIZE(hi6220_separated_gate_clks_ao), 
clk_data_ao);
+ }
+-CLK_OF_DECLARE(hi6220_clk_ao, "hisilicon,hi6220-aoctrl", hi6220_clk_ao_init);
++/* Allow reset driver to probe as well */
++CLK_OF_DECLARE_DRIVER(hi6220_clk_ao, "hisilicon,hi6220-aoctrl", 
hi6220_clk_ao_init);
+ 
+ 
+ /* clocks in sysctrl */
+diff --git a/drivers/clk/qcom/clk-alpha-pll.c 
b/drivers/clk/qcom/clk-alpha-pll.c
+index a69f53e435ed5..6bf33ba6493c8 100644
+--- a/drivers/clk/qcom/clk-alpha-pll.c
++++ b/drivers/clk/qcom/clk-alpha-pll.c
+@@ -38,7 +38,7 @@
+ 
+ #define PLL_USER_CTL(p)               ((p)->offset + 
(p)->regs[PLL_OFF_USER_CTL])
+ # define PLL_POST_DIV_SHIFT   8
+-# define PLL_POST_DIV_MASK(p) GENMASK((p)->width, 0)
++# define PLL_POST_DIV_MASK(p) GENMASK((p)->width - 1, 0)
+ # define PLL_ALPHA_EN         BIT(24)
+ # define PLL_ALPHA_MODE               BIT(25)
+ # define PLL_VCO_SHIFT                20
+@@ -1257,8 +1257,8 @@ clk_trion_pll_postdiv_set_rate(struct clk_hw *hw, 
unsigned long rate,
+       }
+ 
+       return regmap_update_bits(regmap, PLL_USER_CTL(pll),
+-                                PLL_POST_DIV_MASK(pll) << PLL_POST_DIV_SHIFT,
+-                                val << PLL_POST_DIV_SHIFT);
++                                PLL_POST_DIV_MASK(pll) << pll->post_div_shift,
++                                val << pll->post_div_shift);
+ }
+ 
+ const struct clk_ops clk_trion_pll_postdiv_ops = {
+diff --git a/drivers/clocksource/timer-imx-tpm.c 
b/drivers/clocksource/timer-imx-tpm.c
+index c1d52d5264c27..75292e487d430 100644
+--- a/drivers/clocksource/timer-imx-tpm.c
++++ b/drivers/clocksource/timer-imx-tpm.c
+@@ -83,20 +83,28 @@ static u64 notrace tpm_read_sched_clock(void)
+ static int tpm_set_next_event(unsigned long delta,
+                               struct clock_event_device *evt)
+ {
+-      unsigned long next, now;
++      unsigned long next, prev, now;
+ 
+-      next = tpm_read_counter();
+-      next += delta;
++      prev = tpm_read_counter();
++      next = prev + delta;
+       writel(next, timer_base + TPM_C0V);
+       now = tpm_read_counter();
+ 
++      /*
++       * Need to wait CNT increase at least 1 cycle to make sure
++       * the C0V has been updated into HW.
++       */
++      if ((next & 0xffffffff) != readl(timer_base + TPM_C0V))
++              while (now == tpm_read_counter())
++                      ;
++
+       /*
+        * NOTE: We observed in a very small probability, the bus fabric
+        * contention between GPU and A7 may results a few cycles delay
+        * of writing CNT registers which may cause the min_delta event got
+        * missed, so we need add a ETIME check here in case it happened.
+        */
+-      return (int)(next - now) <= 0 ? -ETIME : 0;
++      return (now - prev) >= delta ? -ETIME : 0;
+ }
+ 
+ static int tpm_set_state_oneshot(struct clock_event_device *evt)
+diff --git a/drivers/clocksource/timer-of.c b/drivers/clocksource/timer-of.c
+index bf2a6f64ba0c5..377afa0bdcaa6 100644
+--- a/drivers/clocksource/timer-of.c
++++ b/drivers/clocksource/timer-of.c
+@@ -25,10 +25,7 @@ static __init void timer_of_irq_exit(struct of_timer_irq 
*of_irq)
+ 
+       struct clock_event_device *clkevt = &to->clkevt;
+ 
+-      if (of_irq->percpu)
+-              free_percpu_irq(of_irq->irq, clkevt);
+-      else
+-              free_irq(of_irq->irq, clkevt);
++      free_irq(of_irq->irq, clkevt);
+ }
+ 
+ /**
+@@ -42,9 +39,6 @@ static __init void timer_of_irq_exit(struct of_timer_irq 
*of_irq)
+  * - Get interrupt number by name
+  * - Get interrupt number by index
+  *
+- * When the interrupt is per CPU, 'request_percpu_irq()' is called,
+- * otherwise 'request_irq()' is used.
+- *
+  * Returns 0 on success, < 0 otherwise
+  */
+ static __init int timer_of_irq_init(struct device_node *np,
+@@ -69,12 +63,9 @@ static __init int timer_of_irq_init(struct device_node *np,
+               return -EINVAL;
+       }
+ 
+-      ret = of_irq->percpu ?
+-              request_percpu_irq(of_irq->irq, of_irq->handler,
+-                                 np->full_name, clkevt) :
+-              request_irq(of_irq->irq, of_irq->handler,
+-                          of_irq->flags ? of_irq->flags : IRQF_TIMER,
+-                          np->full_name, clkevt);
++      ret = request_irq(of_irq->irq, of_irq->handler,
++                        of_irq->flags ? of_irq->flags : IRQF_TIMER,
++                        np->full_name, clkevt);
+       if (ret) {
+               pr_err("Failed to request irq %d for %pOF\n", of_irq->irq, np);
+               return ret;
+diff --git a/drivers/clocksource/timer-of.h b/drivers/clocksource/timer-of.h
+index a5478f3e8589d..01a2c6b7db065 100644
+--- a/drivers/clocksource/timer-of.h
++++ b/drivers/clocksource/timer-of.h
+@@ -11,7 +11,6 @@
+ struct of_timer_irq {
+       int irq;
+       int index;
+-      int percpu;
+       const char *name;
+       unsigned long flags;
+       irq_handler_t handler;
+diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_afmt.c 
b/drivers/gpu/drm/amd/amdgpu/amdgpu_afmt.c
+index a4d65973bf7cf..80771b1480fff 100644
+--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_afmt.c
++++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_afmt.c
+@@ -100,6 +100,7 @@ struct amdgpu_afmt_acr amdgpu_afmt_acr(uint32_t clock)
+       amdgpu_afmt_calc_cts(clock, &res.cts_32khz, &res.n_32khz, 32000);
+       amdgpu_afmt_calc_cts(clock, &res.cts_44_1khz, &res.n_44_1khz, 44100);
+       amdgpu_afmt_calc_cts(clock, &res.cts_48khz, &res.n_48khz, 48000);
++      res.clock = clock;
+ 
+       return res;
+ }
+diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.c 
b/drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.c
+index c687432da4262..89930a38b63eb 100644
+--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.c
++++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.c
+@@ -1626,6 +1626,8 @@ int amdgpu_atombios_init_mc_reg_table(struct 
amdgpu_device *adev,
+                                                                               
(u32)le32_to_cpu(*((u32 *)reg_data + j));
+                                                                       j++;
+                                                               } else if 
((reg_table->mc_reg_address[i].pre_reg_data & LOW_NIBBLE_MASK) == 
DATA_EQU_PREV) {
++                                                                      if (i 
== 0)
++                                                                              
continue;
+                                                                       
reg_table->mc_reg_table_entry[num_ranges].mc_data[i] =
+                                                                               
reg_table->mc_reg_table_entry[num_ranges].mc_data[i - 1];
+                                                               }
+diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_cgs.c 
b/drivers/gpu/drm/amd/amdgpu/amdgpu_cgs.c
+index 031b094607bdd..3ce4447052b9b 100644
+--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_cgs.c
++++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_cgs.c
+@@ -213,6 +213,9 @@ static int amdgpu_cgs_get_firmware_info(struct cgs_device 
*cgs_device,
+               struct amdgpu_firmware_info *ucode;
+ 
+               id = fw_type_convert(cgs_device, type);
++              if (id >= AMDGPU_UCODE_ID_MAXIMUM)
++                      return -EINVAL;
++
+               ucode = &adev->firmware.ucode[id];
+               if (ucode->fw == NULL)
+                       return -EINVAL;
+diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c 
b/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c
+index e5c83e164d82a..8fafda87d4ce8 100644
+--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c
++++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c
+@@ -437,8 +437,9 @@ static ssize_t amdgpu_debugfs_ring_read(struct file *f, 
char __user *buf,
+                                       size_t size, loff_t *pos)
+ {
+       struct amdgpu_ring *ring = file_inode(f)->i_private;
+-      int r, i;
+       uint32_t value, result, early[3];
++      loff_t i;
++      int r;
+ 
+       if (*pos & 3 || size & 3)
+               return -EINVAL;
+diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_crat.h 
b/drivers/gpu/drm/amd/amdkfd/kfd_crat.h
+index d54ceebd346b7..30c70b3ab17f1 100644
+--- a/drivers/gpu/drm/amd/amdkfd/kfd_crat.h
++++ b/drivers/gpu/drm/amd/amdkfd/kfd_crat.h
+@@ -42,8 +42,6 @@
+ #define CRAT_OEMTABLEID_LENGTH        8
+ #define CRAT_RESERVED_LENGTH  6
+ 
+-#define CRAT_OEMID_64BIT_MASK ((1ULL << (CRAT_OEMID_LENGTH * 8)) - 1)
+-
+ /* Compute Unit flags */
+ #define COMPUTE_UNIT_CPU      (1 << 0)  /* Create Virtual CRAT for CPU */
+ #define COMPUTE_UNIT_GPU      (1 << 1)  /* Create Virtual CRAT for GPU */
+diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_topology.c 
b/drivers/gpu/drm/amd/amdkfd/kfd_topology.c
+index a49e2ab071d68..de892ee147dea 100644
+--- a/drivers/gpu/drm/amd/amdkfd/kfd_topology.c
++++ b/drivers/gpu/drm/amd/amdkfd/kfd_topology.c
+@@ -883,8 +883,7 @@ static void kfd_update_system_properties(void)
+       dev = list_last_entry(&topology_device_list,
+                       struct kfd_topology_device, list);
+       if (dev) {
+-              sys_props.platform_id =
+-                      (*((uint64_t *)dev->oem_id)) & CRAT_OEMID_64BIT_MASK;
++              sys_props.platform_id = dev->oem_id64;
+               sys_props.platform_oem = *((uint64_t *)dev->oem_table_id);
+               sys_props.platform_rev = dev->oem_revision;
+       }
+diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_topology.h 
b/drivers/gpu/drm/amd/amdkfd/kfd_topology.h
+index d4718d58d0f24..7230b5b5bfe5a 100644
+--- a/drivers/gpu/drm/amd/amdkfd/kfd_topology.h
++++ b/drivers/gpu/drm/amd/amdkfd/kfd_topology.h
+@@ -172,7 +172,10 @@ struct kfd_topology_device {
+       struct attribute                attr_gpuid;
+       struct attribute                attr_name;
+       struct attribute                attr_props;
+-      uint8_t                         oem_id[CRAT_OEMID_LENGTH];
++      union {
++              uint8_t                         oem_id[CRAT_OEMID_LENGTH];
++              uint64_t                        oem_id64;
++      };
+       uint8_t                         oem_table_id[CRAT_OEMTABLEID_LENGTH];
+       uint32_t                        oem_revision;
+ };
+diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c 
b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+index 3bfc4aa328c6f..869b38908b28d 100644
+--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
++++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+@@ -2263,7 +2263,10 @@ static int amdgpu_dm_initialize_drm_device(struct 
amdgpu_device *adev)
+ 
+       /* There is one primary plane per CRTC */
+       primary_planes = dm->dc->caps.max_streams;
+-      ASSERT(primary_planes <= AMDGPU_MAX_PLANES);
++      if (primary_planes > AMDGPU_MAX_PLANES) {
++              DRM_ERROR("DM: Plane nums out of 6 planes\n");
++              return -EINVAL;
++      }
+ 
+       /*
+        * Initialize primary planes, implicit planes for legacy IOCTLS.
+diff --git a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn21/rn_clk_mgr.c 
b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn21/rn_clk_mgr.c
+index 9f301f8575a54..fec3ca955b264 100644
+--- a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn21/rn_clk_mgr.c
++++ b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn21/rn_clk_mgr.c
+@@ -453,7 +453,8 @@ void build_watermark_ranges(struct clk_bw_params 
*bw_params, struct pp_smu_wm_ra
+                       ranges->reader_wm_sets[num_valid_sets].max_fill_clk_mhz 
= PP_SMU_WM_SET_RANGE_CLK_UNCONSTRAINED_MAX;
+ 
+                       /* Modify previous watermark range to cover up to max */
+-                      ranges->reader_wm_sets[num_valid_sets - 
1].max_fill_clk_mhz = PP_SMU_WM_SET_RANGE_CLK_UNCONSTRAINED_MAX;
++                      if (num_valid_sets > 0)
++                              ranges->reader_wm_sets[num_valid_sets - 
1].max_fill_clk_mhz = PP_SMU_WM_SET_RANGE_CLK_UNCONSTRAINED_MAX;
+               }
+               num_valid_sets++;
+       }
+diff --git a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_dwb_scl.c 
b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_dwb_scl.c
+index cd8bc92ce3ba9..4058a4fd6b224 100644
+--- a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_dwb_scl.c
++++ b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_dwb_scl.c
+@@ -690,6 +690,9 @@ static void wbscl_set_scaler_filter(
+       int pair;
+       uint16_t odd_coef, even_coef;
+ 
++      if (!filter)
++              return;
++
+       for (phase = 0; phase < (NUM_PHASES / 2 + 1); phase++) {
+               for (pair = 0; pair < tap_pairs; pair++) {
+                       even_coef = filter[phase * taps + 2 * pair];
+diff --git a/drivers/gpu/drm/amd/display/dc/gpio/gpio_service.c 
b/drivers/gpu/drm/amd/display/dc/gpio/gpio_service.c
+index 0be817f8cae6b..a61cec470d28c 100644
+--- a/drivers/gpu/drm/amd/display/dc/gpio/gpio_service.c
++++ b/drivers/gpu/drm/amd/display/dc/gpio/gpio_service.c
+@@ -58,7 +58,7 @@ struct gpio_service *dal_gpio_service_create(
+       struct dc_context *ctx)
+ {
+       struct gpio_service *service;
+-      uint32_t index_of_id;
++      int32_t index_of_id;
+ 
+       service = kzalloc(sizeof(struct gpio_service), GFP_KERNEL);
+ 
+@@ -114,7 +114,7 @@ struct gpio_service *dal_gpio_service_create(
+       return service;
+ 
+ failure_2:
+-      while (index_of_id) {
++      while (index_of_id > 0) {
+               --index_of_id;
+               kfree(service->busyness[index_of_id]);
+       }
+@@ -242,6 +242,9 @@ static bool is_pin_busy(
+       enum gpio_id id,
+       uint32_t en)
+ {
++      if (id == GPIO_ID_UNKNOWN)
++              return false;
++
+       return service->busyness[id][en];
+ }
+ 
+@@ -250,6 +253,9 @@ static void set_pin_busy(
+       enum gpio_id id,
+       uint32_t en)
+ {
++      if (id == GPIO_ID_UNKNOWN)
++              return;
++
+       service->busyness[id][en] = true;
+ }
+ 
+@@ -258,6 +264,9 @@ static void set_pin_free(
+       enum gpio_id id,
+       uint32_t en)
+ {
++      if (id == GPIO_ID_UNKNOWN)
++              return;
++
+       service->busyness[id][en] = false;
+ }
+ 
+@@ -266,7 +275,7 @@ enum gpio_result dal_gpio_service_lock(
+       enum gpio_id id,
+       uint32_t en)
+ {
+-      if (!service->busyness[id]) {
++      if (id != GPIO_ID_UNKNOWN && !service->busyness[id]) {
+               ASSERT_CRITICAL(false);
+               return GPIO_RESULT_OPEN_FAILED;
+       }
+@@ -280,7 +289,7 @@ enum gpio_result dal_gpio_service_unlock(
+       enum gpio_id id,
+       uint32_t en)
+ {
+-      if (!service->busyness[id]) {
++      if (id != GPIO_ID_UNKNOWN && !service->busyness[id]) {
+               ASSERT_CRITICAL(false);
+               return GPIO_RESULT_OPEN_FAILED;
+       }
+diff --git a/drivers/gpu/drm/drm_panel_orientation_quirks.c 
b/drivers/gpu/drm/drm_panel_orientation_quirks.c
+index 43de9dfcba19a..f1091cb87de0c 100644
+--- a/drivers/gpu/drm/drm_panel_orientation_quirks.c
++++ b/drivers/gpu/drm/drm_panel_orientation_quirks.c
+@@ -318,6 +318,12 @@ static const struct dmi_system_id orientation_data[] = {
+                 DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "ONE XPLAYER"),
+               },
+               .driver_data = (void *)&lcd1600x2560_leftside_up,
++      }, {    /* OrangePi Neo */
++              .matches = {
++                DMI_EXACT_MATCH(DMI_SYS_VENDOR, "OrangePi"),
++                DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "NEO-01"),
++              },
++              .driver_data = (void *)&lcd1200x1920_rightside_up,
+       }, {    /* Samsung GalaxyBook 10.6 */
+               .matches = {
+                 DMI_EXACT_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., 
LTD."),
+diff --git a/drivers/gpu/drm/i915/i915_sw_fence.c 
b/drivers/gpu/drm/i915/i915_sw_fence.c
+index b3fd6ff665dae..8f20668a860e4 100644
+--- a/drivers/gpu/drm/i915/i915_sw_fence.c
++++ b/drivers/gpu/drm/i915/i915_sw_fence.c
+@@ -38,7 +38,7 @@ static inline void debug_fence_init(struct i915_sw_fence 
*fence)
+       debug_object_init(fence, &i915_sw_fence_debug_descr);
+ }
+ 
+-static inline void debug_fence_init_onstack(struct i915_sw_fence *fence)
++static inline __maybe_unused void debug_fence_init_onstack(struct 
i915_sw_fence *fence)
+ {
+       debug_object_init_on_stack(fence, &i915_sw_fence_debug_descr);
+ }
+@@ -64,7 +64,7 @@ static inline void debug_fence_destroy(struct i915_sw_fence 
*fence)
+       debug_object_destroy(fence, &i915_sw_fence_debug_descr);
+ }
+ 
+-static inline void debug_fence_free(struct i915_sw_fence *fence)
++static inline __maybe_unused void debug_fence_free(struct i915_sw_fence 
*fence)
+ {
+       debug_object_free(fence, &i915_sw_fence_debug_descr);
+       smp_wmb(); /* flush the change in state before reallocation */
+@@ -81,7 +81,7 @@ static inline void debug_fence_init(struct i915_sw_fence 
*fence)
+ {
+ }
+ 
+-static inline void debug_fence_init_onstack(struct i915_sw_fence *fence)
++static inline __maybe_unused void debug_fence_init_onstack(struct 
i915_sw_fence *fence)
+ {
+ }
+ 
+@@ -102,7 +102,7 @@ static inline void debug_fence_destroy(struct 
i915_sw_fence *fence)
+ {
+ }
+ 
+-static inline void debug_fence_free(struct i915_sw_fence *fence)
++static inline __maybe_unused void debug_fence_free(struct i915_sw_fence 
*fence)
+ {
+ }
+ 
+diff --git a/drivers/hid/hid-cougar.c b/drivers/hid/hid-cougar.c
+index 4ff3bc1d25e23..5294299afb263 100644
+--- a/drivers/hid/hid-cougar.c
++++ b/drivers/hid/hid-cougar.c
+@@ -106,7 +106,7 @@ static void cougar_fix_g6_mapping(void)
+ static __u8 *cougar_report_fixup(struct hid_device *hdev, __u8 *rdesc,
+                                unsigned int *rsize)
+ {
+-      if (rdesc[2] == 0x09 && rdesc[3] == 0x02 &&
++      if (*rsize >= 117 && rdesc[2] == 0x09 && rdesc[3] == 0x02 &&
+           (rdesc[115] | rdesc[116] << 8) >= HID_MAX_USAGES) {
+               hid_info(hdev,
+                       "usage count exceeds max: fixing up report 
descriptor\n");
+diff --git a/drivers/hv/vmbus_drv.c b/drivers/hv/vmbus_drv.c
+index a1cfa75968535..01a2eeb2ec961 100644
+--- a/drivers/hv/vmbus_drv.c
++++ b/drivers/hv/vmbus_drv.c
+@@ -1908,6 +1908,7 @@ void vmbus_device_unregister(struct hv_device 
*device_obj)
+        */
+       device_unregister(&device_obj->device);
+ }
++EXPORT_SYMBOL_GPL(vmbus_device_unregister);
+ 
+ 
+ /*
+diff --git a/drivers/hwmon/adc128d818.c b/drivers/hwmon/adc128d818.c
+index f9edec195c352..08d8bd72ec0e1 100644
+--- a/drivers/hwmon/adc128d818.c
++++ b/drivers/hwmon/adc128d818.c
+@@ -176,7 +176,7 @@ static ssize_t adc128_in_store(struct device *dev,
+ 
+       mutex_lock(&data->update_lock);
+       /* 10 mV LSB on limit registers */
+-      regval = clamp_val(DIV_ROUND_CLOSEST(val, 10), 0, 255);
++      regval = DIV_ROUND_CLOSEST(clamp_val(val, 0, 2550), 10);
+       data->in[index][nr] = regval << 4;
+       reg = index == 1 ? ADC128_REG_IN_MIN(nr) : ADC128_REG_IN_MAX(nr);
+       i2c_smbus_write_byte_data(data->client, reg, regval);
+@@ -214,7 +214,7 @@ static ssize_t adc128_temp_store(struct device *dev,
+               return err;
+ 
+       mutex_lock(&data->update_lock);
+-      regval = clamp_val(DIV_ROUND_CLOSEST(val, 1000), -128, 127);
++      regval = DIV_ROUND_CLOSEST(clamp_val(val, -128000, 127000), 1000);
+       data->temp[index] = regval << 1;
+       i2c_smbus_write_byte_data(data->client,
+                                 index == 1 ? ADC128_REG_TEMP_MAX
+diff --git a/drivers/hwmon/lm95234.c b/drivers/hwmon/lm95234.c
+index 8a2a2a4904969..c49aaf0d710fa 100644
+--- a/drivers/hwmon/lm95234.c
++++ b/drivers/hwmon/lm95234.c
+@@ -301,7 +301,8 @@ static ssize_t tcrit2_store(struct device *dev, struct 
device_attribute *attr,
+       if (ret < 0)
+               return ret;
+ 
+-      val = clamp_val(DIV_ROUND_CLOSEST(val, 1000), 0, index ? 255 : 127);
++      val = DIV_ROUND_CLOSEST(clamp_val(val, 0, (index ? 255 : 127) * 1000),
++                              1000);
+ 
+       mutex_lock(&data->update_lock);
+       data->tcrit2[index] = val;
+@@ -350,7 +351,7 @@ static ssize_t tcrit1_store(struct device *dev, struct 
device_attribute *attr,
+       if (ret < 0)
+               return ret;
+ 
+-      val = clamp_val(DIV_ROUND_CLOSEST(val, 1000), 0, 255);
++      val = DIV_ROUND_CLOSEST(clamp_val(val, 0, 255000), 1000);
+ 
+       mutex_lock(&data->update_lock);
+       data->tcrit1[index] = val;
+@@ -391,7 +392,7 @@ static ssize_t tcrit1_hyst_store(struct device *dev,
+       if (ret < 0)
+               return ret;
+ 
+-      val = DIV_ROUND_CLOSEST(val, 1000);
++      val = DIV_ROUND_CLOSEST(clamp_val(val, -255000, 255000), 1000);
+       val = clamp_val((int)data->tcrit1[index] - val, 0, 31);
+ 
+       mutex_lock(&data->update_lock);
+@@ -431,7 +432,7 @@ static ssize_t offset_store(struct device *dev, struct 
device_attribute *attr,
+               return ret;
+ 
+       /* Accuracy is 1/2 degrees C */
+-      val = clamp_val(DIV_ROUND_CLOSEST(val, 500), -128, 127);
++      val = DIV_ROUND_CLOSEST(clamp_val(val, -64000, 63500), 500);
+ 
+       mutex_lock(&data->update_lock);
+       data->toffset[index] = val;
+diff --git a/drivers/hwmon/nct6775.c b/drivers/hwmon/nct6775.c
+index ba9b96973e808..da6bbfca15fee 100644
+--- a/drivers/hwmon/nct6775.c
++++ b/drivers/hwmon/nct6775.c
+@@ -2374,7 +2374,7 @@ store_temp_offset(struct device *dev, struct 
device_attribute *attr,
+       if (err < 0)
+               return err;
+ 
+-      val = clamp_val(DIV_ROUND_CLOSEST(val, 1000), -128, 127);
++      val = DIV_ROUND_CLOSEST(clamp_val(val, -128000, 127000), 1000);
+ 
+       mutex_lock(&data->update_lock);
+       data->temp_offset[nr] = val;
+diff --git a/drivers/hwmon/w83627ehf.c b/drivers/hwmon/w83627ehf.c
+index eb171d15ac489..e4e5bb9115584 100644
+--- a/drivers/hwmon/w83627ehf.c
++++ b/drivers/hwmon/w83627ehf.c
+@@ -1506,7 +1506,7 @@ store_target_temp(struct device *dev, struct 
device_attribute *attr,
+       if (err < 0)
+               return err;
+ 
+-      val = clamp_val(DIV_ROUND_CLOSEST(val, 1000), 0, 127);
++      val = DIV_ROUND_CLOSEST(clamp_val(val, 0, 127000), 1000);
+ 
+       mutex_lock(&data->update_lock);
+       data->target_temp[nr] = val;
+@@ -1532,7 +1532,7 @@ store_tolerance(struct device *dev, struct 
device_attribute *attr,
+               return err;
+ 
+       /* Limit the temp to 0C - 15C */
+-      val = clamp_val(DIV_ROUND_CLOSEST(val, 1000), 0, 15);
++      val = DIV_ROUND_CLOSEST(clamp_val(val, 0, 15000), 1000);
+ 
+       mutex_lock(&data->update_lock);
+       if (sio_data->kind == nct6775 || sio_data->kind == nct6776) {
+diff --git a/drivers/iio/buffer/industrialio-buffer-dmaengine.c 
b/drivers/iio/buffer/industrialio-buffer-dmaengine.c
+index bea4a75e92f13..19acca31af508 100644
+--- a/drivers/iio/buffer/industrialio-buffer-dmaengine.c
++++ b/drivers/iio/buffer/industrialio-buffer-dmaengine.c
+@@ -158,7 +158,7 @@ struct iio_buffer *iio_dmaengine_buffer_alloc(struct 
device *dev,
+ 
+       ret = dma_get_slave_caps(chan, &caps);
+       if (ret < 0)
+-              goto err_free;
++              goto err_release;
+ 
+       /* Needs to be aligned to the maximum of the minimums */
+       if (caps.src_addr_widths)
+@@ -183,6 +183,8 @@ struct iio_buffer *iio_dmaengine_buffer_alloc(struct 
device *dev,
+ 
+       return &dmaengine_buffer->queue.buffer;
+ 
++err_release:
++      dma_release_channel(chan);
+ err_free:
+       kfree(dmaengine_buffer);
+       return ERR_PTR(ret);
+diff --git a/drivers/iio/inkern.c b/drivers/iio/inkern.c
+index d00f3045557cf..730c821b52214 100644
+--- a/drivers/iio/inkern.c
++++ b/drivers/iio/inkern.c
+@@ -637,17 +637,17 @@ static int iio_convert_raw_to_processed_unlocked(struct 
iio_channel *chan,
+               break;
+       case IIO_VAL_INT_PLUS_MICRO:
+               if (scale_val2 < 0)
+-                      *processed = -raw64 * scale_val;
++                      *processed = -raw64 * scale_val * scale;
+               else
+-                      *processed = raw64 * scale_val;
++                      *processed = raw64 * scale_val * scale;
+               *processed += div_s64(raw64 * (s64)scale_val2 * scale,
+                                     1000000LL);
+               break;
+       case IIO_VAL_INT_PLUS_NANO:
+               if (scale_val2 < 0)
+-                      *processed = -raw64 * scale_val;
++                      *processed = -raw64 * scale_val * scale;
+               else
+-                      *processed = raw64 * scale_val;
++                      *processed = raw64 * scale_val * scale;
+               *processed += div_s64(raw64 * (s64)scale_val2 * scale,
+                                     1000000000LL);
+               break;
+diff --git a/drivers/input/misc/uinput.c b/drivers/input/misc/uinput.c
+index 002654ec70404..e707da0b1fe2e 100644
+--- a/drivers/input/misc/uinput.c
++++ b/drivers/input/misc/uinput.c
+@@ -416,6 +416,20 @@ static int uinput_validate_absinfo(struct input_dev *dev, 
unsigned int code,
+               return -EINVAL;
+       }
+ 
++      /*
++       * Limit number of contacts to a reasonable value (100). This
++       * ensures that we need less than 2 pages for struct input_mt
++       * (we are not using in-kernel slot assignment so not going to
++       * allocate memory for the "red" table), and we should have no
++       * trouble getting this much memory.
++       */
++      if (code == ABS_MT_SLOT && max > 99) {
++              printk(KERN_DEBUG
++                     "%s: unreasonably large number of slots requested: %d\n",
++                     UINPUT_NAME, max);
++              return -EINVAL;
++      }
++
+       return 0;
+ }
+ 
+diff --git a/drivers/iommu/dmar.c b/drivers/iommu/dmar.c
+index 36900d65386fc..a4805d17317d4 100644
+--- a/drivers/iommu/dmar.c
++++ b/drivers/iommu/dmar.c
+@@ -1294,7 +1294,7 @@ int qi_submit_sync(struct qi_desc *desc, struct 
intel_iommu *iommu)
+        */
+       writel(qi->free_head << shift, iommu->reg + DMAR_IQT_REG);
+ 
+-      while (qi->desc_status[wait_index] != QI_DONE) {
++      while (READ_ONCE(qi->desc_status[wait_index]) != QI_DONE) {
+               /*
+                * We will leave the interrupts disabled, to prevent interrupt
+                * context to queue another cmd while a cmd is already submitted
+diff --git a/drivers/irqchip/irq-armada-370-xp.c 
b/drivers/irqchip/irq-armada-370-xp.c
+index 0fd428db3aa4d..73c386aba3683 100644
+--- a/drivers/irqchip/irq-armada-370-xp.c
++++ b/drivers/irqchip/irq-armada-370-xp.c
+@@ -346,6 +346,10 @@ static struct irq_chip armada_370_xp_irq_chip = {
+ static int armada_370_xp_mpic_irq_map(struct irq_domain *h,
+                                     unsigned int virq, irq_hw_number_t hw)
+ {
++      /* IRQs 0 and 1 cannot be mapped, they are handled internally */
++      if (hw <= 1)
++              return -EINVAL;
++
+       armada_370_xp_irq_mask(irq_get_irq_data(virq));
+       if (!is_percpu_irq(hw))
+               writel(hw, per_cpu_int_base +
+diff --git a/drivers/irqchip/irq-gic-v2m.c b/drivers/irqchip/irq-gic-v2m.c
+index e88e75c22b6a0..11efd6c6b111b 100644
+--- a/drivers/irqchip/irq-gic-v2m.c
++++ b/drivers/irqchip/irq-gic-v2m.c
+@@ -441,12 +441,12 @@ static int __init gicv2m_of_init(struct fwnode_handle 
*parent_handle,
+ 
+               ret = gicv2m_init_one(&child->fwnode, spi_start, nr_spis,
+                                     &res, 0);
+-              if (ret) {
+-                      of_node_put(child);
++              if (ret)
+                       break;
+-              }
+       }
+ 
++      if (ret && child)
++              of_node_put(child);
+       if (!ret)
+               ret = gicv2m_allocate_domains(parent);
+       if (ret)
+diff --git a/drivers/md/dm-init.c b/drivers/md/dm-init.c
+index b869316d37229..4a8bbe0391a26 100644
+--- a/drivers/md/dm-init.c
++++ b/drivers/md/dm-init.c
+@@ -207,8 +207,10 @@ static char __init *dm_parse_device_entry(struct 
dm_device *dev, char *str)
+       strscpy(dev->dmi.uuid, field[1], sizeof(dev->dmi.uuid));
+       /* minor */
+       if (strlen(field[2])) {
+-              if (kstrtoull(field[2], 0, &dev->dmi.dev))
++              if (kstrtoull(field[2], 0, &dev->dmi.dev) ||
++                  dev->dmi.dev >= (1 << MINORBITS))
+                       return ERR_PTR(-EINVAL);
++              dev->dmi.dev = huge_encode_dev((dev_t)dev->dmi.dev);
+               dev->dmi.flags |= DM_PERSISTENT_DEV_FLAG;
+       }
+       /* flags */
+diff --git a/drivers/media/platform/qcom/camss/camss.c 
b/drivers/media/platform/qcom/camss/camss.c
+index 2483641799dfb..2db9229d5601a 100644
+--- a/drivers/media/platform/qcom/camss/camss.c
++++ b/drivers/media/platform/qcom/camss/camss.c
+@@ -431,8 +431,11 @@ static int camss_of_parse_endpoint_node(struct device 
*dev,
+       struct v4l2_fwnode_bus_mipi_csi2 *mipi_csi2;
+       struct v4l2_fwnode_endpoint vep = { { 0 } };
+       unsigned int i;
++      int ret;
+ 
+-      v4l2_fwnode_endpoint_parse(of_fwnode_handle(node), &vep);
++      ret = v4l2_fwnode_endpoint_parse(of_fwnode_handle(node), &vep);
++      if (ret)
++              return ret;
+ 
+       csd->interface.csiphy_id = vep.base.port;
+ 
+diff --git a/drivers/media/usb/uvc/uvc_driver.c 
b/drivers/media/usb/uvc/uvc_driver.c
+index 0caa57a6782aa..6d1a7e02da51f 100644
+--- a/drivers/media/usb/uvc/uvc_driver.c
++++ b/drivers/media/usb/uvc/uvc_driver.c
+@@ -887,16 +887,26 @@ static int uvc_parse_streaming(struct uvc_device *dev,
+               goto error;
+       }
+ 
+-      size = nformats * sizeof(*format) + nframes * sizeof(*frame)
++      /*
++       * Allocate memory for the formats, the frames and the intervals,
++       * plus any required padding to guarantee that everything has the
++       * correct alignment.
++       */
++      size = nformats * sizeof(*format);
++      size = ALIGN(size, __alignof__(*frame)) + nframes * sizeof(*frame);
++      size = ALIGN(size, __alignof__(*interval))
+            + nintervals * sizeof(*interval);
++
+       format = kzalloc(size, GFP_KERNEL);
+-      if (format == NULL) {
++      if (!format) {
+               ret = -ENOMEM;
+               goto error;
+       }
+ 
+-      frame = (struct uvc_frame *)&format[nformats];
+-      interval = (u32 *)&frame[nframes];
++      frame = (void *)format + nformats * sizeof(*format);
++      frame = PTR_ALIGN(frame, __alignof__(*frame));
++      interval = (void *)frame + nframes * sizeof(*frame);
++      interval = PTR_ALIGN(interval, __alignof__(*interval));
+ 
+       streaming->format = format;
+       streaming->nformats = nformats;
+diff --git a/drivers/misc/vmw_vmci/vmci_resource.c 
b/drivers/misc/vmw_vmci/vmci_resource.c
+index 692daa9eff341..19c9d2cdd277b 100644
+--- a/drivers/misc/vmw_vmci/vmci_resource.c
++++ b/drivers/misc/vmw_vmci/vmci_resource.c
+@@ -144,7 +144,8 @@ void vmci_resource_remove(struct vmci_resource *resource)
+       spin_lock(&vmci_resource_table.lock);
+ 
+       hlist_for_each_entry(r, &vmci_resource_table.entries[idx], node) {
+-              if (vmci_handle_is_equal(r->handle, resource->handle)) {
++              if (vmci_handle_is_equal(r->handle, resource->handle) &&
++                  resource->type == r->type) {
+                       hlist_del_init_rcu(&r->node);
+                       break;
+               }
+diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c
+index 78e20327828ad..7c5ce9c96841a 100644
+--- a/drivers/mmc/host/dw_mmc.c
++++ b/drivers/mmc/host/dw_mmc.c
+@@ -2831,8 +2831,8 @@ static int dw_mci_init_slot(struct dw_mci *host)
+       if (host->use_dma == TRANS_MODE_IDMAC) {
+               mmc->max_segs = host->ring_size;
+               mmc->max_blk_size = 65535;
+-              mmc->max_seg_size = 0x1000;
+-              mmc->max_req_size = mmc->max_seg_size * host->ring_size;
++              mmc->max_req_size = DW_MCI_DESC_DATA_LENGTH * host->ring_size;
++              mmc->max_seg_size = mmc->max_req_size;
+               mmc->max_blk_count = mmc->max_req_size / 512;
+       } else if (host->use_dma == TRANS_MODE_EDMAC) {
+               mmc->max_segs = 64;
+diff --git a/drivers/mmc/host/sdhci-of-aspeed.c 
b/drivers/mmc/host/sdhci-of-aspeed.c
+index 47ddded570001..792806a925ab9 100644
+--- a/drivers/mmc/host/sdhci-of-aspeed.c
++++ b/drivers/mmc/host/sdhci-of-aspeed.c
+@@ -224,6 +224,7 @@ static const struct of_device_id aspeed_sdhci_of_match[] = 
{
+       { .compatible = "aspeed,ast2600-sdhci", },
+       { }
+ };
++MODULE_DEVICE_TABLE(of, aspeed_sdhci_of_match);
+ 
+ static struct platform_driver aspeed_sdhci_driver = {
+       .driver         = {
+diff --git a/drivers/net/dsa/vitesse-vsc73xx-core.c 
b/drivers/net/dsa/vitesse-vsc73xx-core.c
+index a1dd82d25ce3c..b95e7920f2731 100644
+--- a/drivers/net/dsa/vitesse-vsc73xx-core.c
++++ b/drivers/net/dsa/vitesse-vsc73xx-core.c
+@@ -34,7 +34,7 @@
+ #define VSC73XX_BLOCK_ANALYZER        0x2 /* Only subblock 0 */
+ #define VSC73XX_BLOCK_MII     0x3 /* Subblocks 0 and 1 */
+ #define VSC73XX_BLOCK_MEMINIT 0x3 /* Only subblock 2 */
+-#define VSC73XX_BLOCK_CAPTURE 0x4 /* Only subblock 2 */
++#define VSC73XX_BLOCK_CAPTURE 0x4 /* Subblocks 0-4, 6, 7 */
+ #define VSC73XX_BLOCK_ARBITER 0x5 /* Only subblock 0 */
+ #define VSC73XX_BLOCK_SYSTEM  0x7 /* Only subblock 0 */
+ 
+@@ -360,13 +360,19 @@ int vsc73xx_is_addr_valid(u8 block, u8 subblock)
+               break;
+ 
+       case VSC73XX_BLOCK_MII:
+-      case VSC73XX_BLOCK_CAPTURE:
+       case VSC73XX_BLOCK_ARBITER:
+               switch (subblock) {
+               case 0 ... 1:
+                       return 1;
+               }
+               break;
++      case VSC73XX_BLOCK_CAPTURE:
++              switch (subblock) {
++              case 0 ... 4:
++              case 6 ... 7:
++                      return 1;
++              }
++              break;
+       }
+ 
+       return 0;
+diff --git a/drivers/net/ethernet/intel/igb/igb_main.c 
b/drivers/net/ethernet/intel/igb/igb_main.c
+index cceff1515ea1d..884beeb67a1fb 100644
+--- a/drivers/net/ethernet/intel/igb/igb_main.c
++++ b/drivers/net/ethernet/intel/igb/igb_main.c
+@@ -6522,10 +6522,20 @@ static void igb_extts(struct igb_adapter *adapter, int 
tsintr_tt)
+ 
+ static void igb_tsync_interrupt(struct igb_adapter *adapter)
+ {
++      const u32 mask = (TSINTR_SYS_WRAP | E1000_TSICR_TXTS |
++                        TSINTR_TT0 | TSINTR_TT1 |
++                        TSINTR_AUTT0 | TSINTR_AUTT1);
+       struct e1000_hw *hw = &adapter->hw;
+       u32 tsicr = rd32(E1000_TSICR);
+       struct ptp_clock_event event;
+ 
++      if (hw->mac.type == e1000_82580) {
++              /* 82580 has a hardware bug that requires an explicit
++               * write to clear the TimeSync interrupt cause.
++               */
++              wr32(E1000_TSICR, tsicr & mask);
++      }
++
+       if (tsicr & TSINTR_SYS_WRAP) {
+               event.type = PTP_CLOCK_PPS;
+               if (adapter->ptp_caps.pps)
+diff --git a/drivers/net/ethernet/pensando/ionic/ionic_lif.c 
b/drivers/net/ethernet/pensando/ionic/ionic_lif.c
+index 7adad91617d8c..20e5e0406c881 100644
+--- a/drivers/net/ethernet/pensando/ionic/ionic_lif.c
++++ b/drivers/net/ethernet/pensando/ionic/ionic_lif.c
+@@ -143,7 +143,7 @@ static int ionic_request_irq(struct ionic_lif *lif, struct 
ionic_qcq *qcq)
+               name = dev_name(dev);
+ 
+       snprintf(intr->name, sizeof(intr->name),
+-               "%s-%s-%s", IONIC_DRV_NAME, name, q->name);
++               "%.5s-%.16s-%.8s", IONIC_DRV_NAME, name, q->name);
+ 
+       return devm_request_irq(dev, intr->vector, ionic_isr,
+                               0, intr->name, &qcq->napi);
+diff --git a/drivers/net/usb/ch9200.c b/drivers/net/usb/ch9200.c
+index 9df3c1ffff355..6ed8da85b0811 100644
+--- a/drivers/net/usb/ch9200.c
++++ b/drivers/net/usb/ch9200.c
+@@ -338,6 +338,7 @@ static int ch9200_bind(struct usbnet *dev, struct 
usb_interface *intf)
+ {
+       int retval = 0;
+       unsigned char data[2];
++      u8 addr[ETH_ALEN];
+ 
+       retval = usbnet_get_endpoints(dev, intf);
+       if (retval)
+@@ -385,7 +386,8 @@ static int ch9200_bind(struct usbnet *dev, struct 
usb_interface *intf)
+       retval = control_write(dev, REQUEST_WRITE, 0, MAC_REG_CTRL, data, 0x02,
+                              CONTROL_TIMEOUT_MS);
+ 
+-      retval = get_mac_address(dev, dev->net->dev_addr);
++      retval = get_mac_address(dev, addr);
++      eth_hw_addr_set(dev->net, addr);
+ 
+       return retval;
+ }
+diff --git a/drivers/net/usb/cx82310_eth.c b/drivers/net/usb/cx82310_eth.c
+index 32b08b18e1208..a7356c5e750c6 100644
+--- a/drivers/net/usb/cx82310_eth.c
++++ b/drivers/net/usb/cx82310_eth.c
+@@ -40,6 +40,11 @@ enum cx82310_status {
+ #define CX82310_MTU   1514
+ #define CMD_EP                0x01
+ 
++struct cx82310_priv {
++      struct work_struct reenable_work;
++      struct usbnet *dev;
++};
++
+ /*
+  * execute control command
+  *  - optionally send some data (command parameters)
+@@ -115,6 +120,23 @@ static int cx82310_cmd(struct usbnet *dev, enum 
cx82310_cmd cmd, bool reply,
+       return ret;
+ }
+ 
++static int cx82310_enable_ethernet(struct usbnet *dev)
++{
++      int ret = cx82310_cmd(dev, CMD_ETHERNET_MODE, true, "\x01", 1, NULL, 0);
++
++      if (ret)
++              netdev_err(dev->net, "unable to enable ethernet mode: %d\n",
++                         ret);
++      return ret;
++}
++
++static void cx82310_reenable_work(struct work_struct *work)
++{
++      struct cx82310_priv *priv = container_of(work, struct cx82310_priv,
++                                               reenable_work);
++      cx82310_enable_ethernet(priv->dev);
++}
++
+ #define partial_len   data[0]         /* length of partial packet data */
+ #define partial_rem   data[1]         /* remaining (missing) data length */
+ #define partial_data  data[2]         /* partial packet data */
+@@ -126,6 +148,8 @@ static int cx82310_bind(struct usbnet *dev, struct 
usb_interface *intf)
+       struct usb_device *udev = dev->udev;
+       u8 link[3];
+       int timeout = 50;
++      struct cx82310_priv *priv;
++      u8 addr[ETH_ALEN];
+ 
+       /* avoid ADSL modems - continue only if iProduct is "USB NET CARD" */
+       if (usb_string(udev, udev->descriptor.iProduct, buf, sizeof(buf)) > 0
+@@ -152,6 +176,15 @@ static int cx82310_bind(struct usbnet *dev, struct 
usb_interface *intf)
+       if (!dev->partial_data)
+               return -ENOMEM;
+ 
++      priv = kzalloc(sizeof(*priv), GFP_KERNEL);
++      if (!priv) {
++              ret = -ENOMEM;
++              goto err_partial;
++      }
++      dev->driver_priv = priv;
++      INIT_WORK(&priv->reenable_work, cx82310_reenable_work);
++      priv->dev = dev;
++
+       /* wait for firmware to become ready (indicated by the link being up) */
+       while (--timeout) {
+               ret = cx82310_cmd(dev, CMD_GET_LINK_STATUS, true, NULL, 0,
+@@ -168,20 +201,17 @@ static int cx82310_bind(struct usbnet *dev, struct 
usb_interface *intf)
+       }
+ 
+       /* enable ethernet mode (?) */
+-      ret = cx82310_cmd(dev, CMD_ETHERNET_MODE, true, "\x01", 1, NULL, 0);
+-      if (ret) {
+-              dev_err(&udev->dev, "unable to enable ethernet mode: %d\n",
+-                      ret);
++      ret = cx82310_enable_ethernet(dev);
++      if (ret)
+               goto err;
+-      }
+ 
+       /* get the MAC address */
+-      ret = cx82310_cmd(dev, CMD_GET_MAC_ADDR, true, NULL, 0,
+-                        dev->net->dev_addr, ETH_ALEN);
++      ret = cx82310_cmd(dev, CMD_GET_MAC_ADDR, true, NULL, 0, addr, ETH_ALEN);
+       if (ret) {
+               dev_err(&udev->dev, "unable to read MAC address: %d\n", ret);
+               goto err;
+       }
++      eth_hw_addr_set(dev->net, addr);
+ 
+       /* start (does not seem to have any effect?) */
+       ret = cx82310_cmd(dev, CMD_START, false, NULL, 0, NULL, 0);
+@@ -190,13 +220,19 @@ static int cx82310_bind(struct usbnet *dev, struct 
usb_interface *intf)
+ 
+       return 0;
+ err:
++      kfree(dev->driver_priv);
++err_partial:
+       kfree((void *)dev->partial_data);
+       return ret;
+ }
+ 
+ static void cx82310_unbind(struct usbnet *dev, struct usb_interface *intf)
+ {
++      struct cx82310_priv *priv = dev->driver_priv;
++
+       kfree((void *)dev->partial_data);
++      cancel_work_sync(&priv->reenable_work);
++      kfree(dev->driver_priv);
+ }
+ 
+ /*
+@@ -211,6 +247,7 @@ static int cx82310_rx_fixup(struct usbnet *dev, struct 
sk_buff *skb)
+ {
+       int len;
+       struct sk_buff *skb2;
++      struct cx82310_priv *priv = dev->driver_priv;
+ 
+       /*
+        * If the last skb ended with an incomplete packet, this skb contains
+@@ -245,7 +282,10 @@ static int cx82310_rx_fixup(struct usbnet *dev, struct 
sk_buff *skb)
+                       break;
+               }
+ 
+-              if (len > CX82310_MTU) {
++              if (len == 0xffff) {
++                      netdev_info(dev->net, "router was rebooted, re-enabling 
ethernet mode");
++                      schedule_work(&priv->reenable_work);
++              } else if (len > CX82310_MTU) {
+                       dev_err(&dev->udev->dev, "RX packet too long: %d B\n",
+                               len);
+                       return 0;
+diff --git a/drivers/net/usb/ipheth.c b/drivers/net/usb/ipheth.c
+index 73ad78f47763c..05576f66f73da 100644
+--- a/drivers/net/usb/ipheth.c
++++ b/drivers/net/usb/ipheth.c
+@@ -353,8 +353,8 @@ static int ipheth_close(struct net_device *net)
+ {
+       struct ipheth_device *dev = netdev_priv(net);
+ 
+-      cancel_delayed_work_sync(&dev->carrier_work);
+       netif_stop_queue(net);
++      cancel_delayed_work_sync(&dev->carrier_work);
+       return 0;
+ }
+ 
+@@ -443,7 +443,7 @@ static int ipheth_probe(struct usb_interface *intf,
+ 
+       netdev->netdev_ops = &ipheth_netdev_ops;
+       netdev->watchdog_timeo = IPHETH_TX_TIMEOUT;
+-      strcpy(netdev->name, "eth%d");
++      strscpy(netdev->name, "eth%d", sizeof(netdev->name));
+ 
+       dev = netdev_priv(netdev);
+       dev->udev = udev;
+diff --git a/drivers/net/usb/kaweth.c b/drivers/net/usb/kaweth.c
+index 8e210ba4a3134..243e2b55aabe2 100644
+--- a/drivers/net/usb/kaweth.c
++++ b/drivers/net/usb/kaweth.c
+@@ -1127,8 +1127,7 @@ static int kaweth_probe(
+               goto err_all_but_rxbuf;
+ 
+       memcpy(netdev->broadcast, &bcast_addr, sizeof(bcast_addr));
+-      memcpy(netdev->dev_addr, &kaweth->configuration.hw_addr,
+-               sizeof(kaweth->configuration.hw_addr));
++      eth_hw_addr_set(netdev, (u8 *)&kaweth->configuration.hw_addr);
+ 
+       netdev->netdev_ops = &kaweth_netdev_ops;
+       netdev->watchdog_timeo = KAWETH_TX_TIMEOUT;
+diff --git a/drivers/net/usb/mcs7830.c b/drivers/net/usb/mcs7830.c
+index 7e40e2e2f3723..57281296ba2ca 100644
+--- a/drivers/net/usb/mcs7830.c
++++ b/drivers/net/usb/mcs7830.c
+@@ -480,17 +480,19 @@ static const struct net_device_ops mcs7830_netdev_ops = {
+ static int mcs7830_bind(struct usbnet *dev, struct usb_interface *udev)
+ {
+       struct net_device *net = dev->net;
++      u8 addr[ETH_ALEN];
+       int ret;
+       int retry;
+ 
+       /* Initial startup: Gather MAC address setting from EEPROM */
+       ret = -EINVAL;
+       for (retry = 0; retry < 5 && ret; retry++)
+-              ret = mcs7830_hif_get_mac_address(dev, net->dev_addr);
++              ret = mcs7830_hif_get_mac_address(dev, addr);
+       if (ret) {
+               dev_warn(&dev->udev->dev, "Cannot read MAC address\n");
+               goto out;
+       }
++      eth_hw_addr_set(net, addr);
+ 
+       mcs7830_data_set_multicast(net);
+ 
+diff --git a/drivers/net/usb/qmi_wwan.c b/drivers/net/usb/qmi_wwan.c
+index 3e219cf4dd851..cce5ee84d29d3 100644
+--- a/drivers/net/usb/qmi_wwan.c
++++ b/drivers/net/usb/qmi_wwan.c
+@@ -1387,6 +1387,7 @@ static const struct usb_device_id products[] = {
+       {QMI_FIXED_INTF(0x2692, 0x9025, 4)},    /* Cellient MPL200 (rebranded 
Qualcomm 05c6:9025) */
+       {QMI_QUIRK_SET_DTR(0x1546, 0x1342, 4)}, /* u-blox LARA-L6 */
+       {QMI_QUIRK_SET_DTR(0x33f8, 0x0104, 4)}, /* Rolling RW101 RMNET */
++      {QMI_FIXED_INTF(0x2dee, 0x4d22, 5)},    /* MeiG Smart SRM825L */
+ 
+       /* 4. Gobi 1000 devices */
+       {QMI_GOBI1K_DEVICE(0x05c6, 0x9212)},    /* Acer Gobi Modem Device */
+diff --git a/drivers/net/usb/sierra_net.c b/drivers/net/usb/sierra_net.c
+index 34c1eaba536c0..6f9ec5ce61dcc 100644
+--- a/drivers/net/usb/sierra_net.c
++++ b/drivers/net/usb/sierra_net.c
+@@ -674,6 +674,7 @@ static int sierra_net_bind(struct usbnet *dev, struct 
usb_interface *intf)
+               0x00, 0x00, SIERRA_NET_HIP_MSYNC_ID, 0x00};
+       static const u8 shdwn_tmplate[sizeof(priv->shdwn_msg)] = {
+               0x00, 0x00, SIERRA_NET_HIP_SHUTD_ID, 0x00};
++      u8 mod[2];
+ 
+       dev_dbg(&dev->udev->dev, "%s", __func__);
+ 
+@@ -703,8 +704,9 @@ static int sierra_net_bind(struct usbnet *dev, struct 
usb_interface *intf)
+       dev->net->netdev_ops = &sierra_net_device_ops;
+ 
+       /* change MAC addr to include, ifacenum, and to be unique */
+-      dev->net->dev_addr[ETH_ALEN-2] = atomic_inc_return(&iface_counter);
+-      dev->net->dev_addr[ETH_ALEN-1] = ifacenum;
++      mod[0] = atomic_inc_return(&iface_counter);
++      mod[1] = ifacenum;
++      dev_addr_mod(dev->net, ETH_ALEN - 2, mod, 2);
+ 
+       /* prepare shutdown message template */
+       memcpy(priv->shdwn_msg, shdwn_tmplate, sizeof(priv->shdwn_msg));
+diff --git a/drivers/net/usb/sr9700.c b/drivers/net/usb/sr9700.c
+index 8d2e3daf03cf2..1ec11a08820d4 100644
+--- a/drivers/net/usb/sr9700.c
++++ b/drivers/net/usb/sr9700.c
+@@ -326,6 +326,7 @@ static int sr9700_bind(struct usbnet *dev, struct 
usb_interface *intf)
+ {
+       struct net_device *netdev;
+       struct mii_if_info *mii;
++      u8 addr[ETH_ALEN];
+       int ret;
+ 
+       ret = usbnet_get_endpoints(dev, intf);
+@@ -356,11 +357,12 @@ static int sr9700_bind(struct usbnet *dev, struct 
usb_interface *intf)
+        * EEPROM automatically to PAR. In case there is no EEPROM externally,
+        * a default MAC address is stored in PAR for making chip work properly.
+        */
+-      if (sr_read(dev, SR_PAR, ETH_ALEN, netdev->dev_addr) < 0) {
++      if (sr_read(dev, SR_PAR, ETH_ALEN, addr) < 0) {
+               netdev_err(netdev, "Error reading MAC address\n");
+               ret = -ENODEV;
+               goto out;
+       }
++      eth_hw_addr_set(netdev, addr);
+ 
+       /* power up and reset phy */
+       sr_write_reg(dev, SR_PRR, PRR_PHY_RST);
+diff --git a/drivers/net/usb/sr9800.c b/drivers/net/usb/sr9800.c
+index a5332e99102a5..351e0edcda2af 100644
+--- a/drivers/net/usb/sr9800.c
++++ b/drivers/net/usb/sr9800.c
+@@ -731,6 +731,7 @@ static int sr9800_bind(struct usbnet *dev, struct 
usb_interface *intf)
+       struct sr_data *data = (struct sr_data *)&dev->data;
+       u16 led01_mux, led23_mux;
+       int ret, embd_phy;
++      u8 addr[ETH_ALEN];
+       u32 phyid;
+       u16 rx_ctl;
+ 
+@@ -756,12 +757,12 @@ static int sr9800_bind(struct usbnet *dev, struct 
usb_interface *intf)
+       }
+ 
+       /* Get the MAC address */
+-      ret = sr_read_cmd(dev, SR_CMD_READ_NODE_ID, 0, 0, ETH_ALEN,
+-                        dev->net->dev_addr);
++      ret = sr_read_cmd(dev, SR_CMD_READ_NODE_ID, 0, 0, ETH_ALEN, addr);
+       if (ret < 0) {
+               netdev_dbg(dev->net, "Failed to read MAC address: %d\n", ret);
+               return ret;
+       }
++      eth_hw_addr_set(dev->net, addr);
+       netdev_dbg(dev->net, "mac addr : %pM\n", dev->net->dev_addr);
+ 
+       /* Initialize MII structure */
+diff --git a/drivers/net/usb/usbnet.c b/drivers/net/usb/usbnet.c
+index bc37e268a15e7..240511b4246db 100644
+--- a/drivers/net/usb/usbnet.c
++++ b/drivers/net/usb/usbnet.c
+@@ -67,9 +67,6 @@
+ 
+ /*-------------------------------------------------------------------------*/
+ 
+-// randomly generated ethernet address
+-static u8     node_id [ETH_ALEN];
+-
+ /* use ethtool to change the level for any given device */
+ static int msg_level = -1;
+ module_param (msg_level, int, 0);
+@@ -151,12 +148,13 @@ EXPORT_SYMBOL_GPL(usbnet_get_endpoints);
+ 
+ int usbnet_get_ethernet_addr(struct usbnet *dev, int iMACAddress)
+ {
++      u8              addr[ETH_ALEN];
+       int             tmp = -1, ret;
+       unsigned char   buf [13];
+ 
+       ret = usb_string(dev->udev, iMACAddress, buf, sizeof buf);
+       if (ret == 12)
+-              tmp = hex2bin(dev->net->dev_addr, buf, 6);
++              tmp = hex2bin(addr, buf, 6);
+       if (tmp < 0) {
+               dev_dbg(&dev->udev->dev,
+                       "bad MAC string %d fetch, %d\n", iMACAddress, tmp);
+@@ -164,6 +162,7 @@ int usbnet_get_ethernet_addr(struct usbnet *dev, int 
iMACAddress)
+                       ret = -EINVAL;
+               return ret;
+       }
++      eth_hw_addr_set(dev->net, addr);
+       return 0;
+ }
+ EXPORT_SYMBOL_GPL(usbnet_get_ethernet_addr);
+@@ -1711,8 +1710,7 @@ usbnet_probe (struct usb_interface *udev, const struct 
usb_device_id *prod)
+       dev->interrupt_count = 0;
+ 
+       dev->net = net;
+-      strcpy (net->name, "usb%d");
+-      memcpy (net->dev_addr, node_id, sizeof node_id);
++      strscpy(net->name, "usb%d", sizeof(net->name));
+ 
+       /* rx and tx sides can use different message sizes;
+        * bind() should set rx_urb_size in that case.
+@@ -1738,13 +1736,13 @@ usbnet_probe (struct usb_interface *udev, const struct 
usb_device_id *prod)
+               if ((dev->driver_info->flags & FLAG_ETHER) != 0 &&
+                   ((dev->driver_info->flags & FLAG_POINTTOPOINT) == 0 ||
+                    (net->dev_addr [0] & 0x02) == 0))
+-                      strcpy (net->name, "eth%d");
++                      strscpy(net->name, "eth%d", sizeof(net->name));
+               /* WLAN devices should always be named "wlan%d" */
+               if ((dev->driver_info->flags & FLAG_WLAN) != 0)
+-                      strcpy(net->name, "wlan%d");
++                      strscpy(net->name, "wlan%d", sizeof(net->name));
+               /* WWAN devices should always be named "wwan%d" */
+               if ((dev->driver_info->flags & FLAG_WWAN) != 0)
+-                      strcpy(net->name, "wwan%d");
++                      strscpy(net->name, "wwan%d", sizeof(net->name));
+ 
+               /* devices that cannot do ARP */
+               if ((dev->driver_info->flags & FLAG_NOARP) != 0)
+@@ -1786,9 +1784,9 @@ usbnet_probe (struct usb_interface *udev, const struct 
usb_device_id *prod)
+               goto out4;
+       }
+ 
+-      /* let userspace know we have a random address */
+-      if (ether_addr_equal(net->dev_addr, node_id))
+-              net->addr_assign_type = NET_ADDR_RANDOM;
++      /* this flags the device for user space */
++      if (!is_valid_ether_addr(net->dev_addr))
++              eth_hw_addr_random(net);
+ 
+       if ((dev->driver_info->flags & FLAG_WLAN) != 0)
+               SET_NETDEV_DEVTYPE(net, &wlan_type);
+@@ -2198,7 +2196,6 @@ static int __init usbnet_init(void)
+       BUILD_BUG_ON(
+               FIELD_SIZEOF(struct sk_buff, cb) < sizeof(struct skb_data));
+ 
+-      eth_random_addr(node_id);
+       return 0;
+ }
+ module_init(usbnet_init);
+diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c
+index ef8770093c48c..182b672700442 100644
+--- a/drivers/net/virtio_net.c
++++ b/drivers/net/virtio_net.c
+@@ -1479,7 +1479,7 @@ static bool is_xdp_raw_buffer_queue(struct virtnet_info 
*vi, int q)
+               return false;
+ }
+ 
+-static void virtnet_poll_cleantx(struct receive_queue *rq)
++static void virtnet_poll_cleantx(struct receive_queue *rq, int budget)
+ {
+       struct virtnet_info *vi = rq->vq->vdev->priv;
+       unsigned int index = vq2rxq(rq->vq);
+@@ -1490,7 +1490,7 @@ static void virtnet_poll_cleantx(struct receive_queue 
*rq)
+               return;
+ 
+       if (__netif_tx_trylock(txq)) {
+-              free_old_xmit_skbs(sq, true);
++              free_old_xmit_skbs(sq, !!budget);
+               __netif_tx_unlock(txq);
+       }
+ 
+@@ -1507,7 +1507,7 @@ static int virtnet_poll(struct napi_struct *napi, int 
budget)
+       unsigned int received;
+       unsigned int xdp_xmit = 0;
+ 
+-      virtnet_poll_cleantx(rq);
++      virtnet_poll_cleantx(rq, budget);
+ 
+       received = virtnet_receive(rq, budget, &xdp_xmit);
+ 
+@@ -1580,7 +1580,7 @@ static int virtnet_poll_tx(struct napi_struct *napi, int 
budget)
+       txq = netdev_get_tx_queue(vi->dev, index);
+       __netif_tx_lock(txq, raw_smp_processor_id());
+       virtqueue_disable_cb(sq->vq);
+-      free_old_xmit_skbs(sq, true);
++      free_old_xmit_skbs(sq, !!budget);
+ 
+       opaque = virtqueue_enable_cb_prepare(sq->vq);
+ 
+diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmsmac/mac80211_if.c 
b/drivers/net/wireless/broadcom/brcm80211/brcmsmac/mac80211_if.c
+index 288d4d4d44548..eb735b0547905 100644
+--- a/drivers/net/wireless/broadcom/brcm80211/brcmsmac/mac80211_if.c
++++ b/drivers/net/wireless/broadcom/brcm80211/brcmsmac/mac80211_if.c
+@@ -1091,6 +1091,7 @@ static int ieee_hw_init(struct ieee80211_hw *hw)
+       ieee80211_hw_set(hw, AMPDU_AGGREGATION);
+       ieee80211_hw_set(hw, SIGNAL_DBM);
+       ieee80211_hw_set(hw, REPORTS_TX_ACK_STATUS);
++      ieee80211_hw_set(hw, MFP_CAPABLE);
+ 
+       hw->extra_tx_headroom = brcms_c_get_header_len();
+       hw->queues = N_TX_QUEUES;
+diff --git a/drivers/net/wireless/marvell/mwifiex/main.h 
b/drivers/net/wireless/marvell/mwifiex/main.h
+index fa5634af40f7c..2e7f31bf38002 100644
+--- a/drivers/net/wireless/marvell/mwifiex/main.h
++++ b/drivers/net/wireless/marvell/mwifiex/main.h
+@@ -1307,6 +1307,9 @@ mwifiex_get_priv_by_id(struct mwifiex_adapter *adapter,
+ 
+       for (i = 0; i < adapter->priv_num; i++) {
+               if (adapter->priv[i]) {
++                      if (adapter->priv[i]->bss_mode == 
NL80211_IFTYPE_UNSPECIFIED)
++                              continue;
++
+                       if ((adapter->priv[i]->bss_num == bss_num) &&
+                           (adapter->priv[i]->bss_type == bss_type))
+                               break;
+diff --git a/drivers/nvme/target/tcp.c b/drivers/nvme/target/tcp.c
+index fa6e7fbf356e7..11c8506e04ca3 100644
+--- a/drivers/nvme/target/tcp.c
++++ b/drivers/nvme/target/tcp.c
+@@ -1751,8 +1751,10 @@ static u16 nvmet_tcp_install_queue(struct nvmet_sq *sq)
+       }
+ 
+       queue->nr_cmds = sq->size * 2;
+-      if (nvmet_tcp_alloc_cmds(queue))
++      if (nvmet_tcp_alloc_cmds(queue)) {
++              queue->nr_cmds = 0;
+               return NVME_SC_INTERNAL;
++      }
+       return 0;
+ }
+ 
+diff --git a/drivers/nvmem/core.c b/drivers/nvmem/core.c
+index cde1d77845fee..01a17505a2fca 100644
+--- a/drivers/nvmem/core.c
++++ b/drivers/nvmem/core.c
+@@ -684,13 +684,13 @@ void nvmem_device_put(struct nvmem_device *nvmem)
+ EXPORT_SYMBOL_GPL(nvmem_device_put);
+ 
+ /**
+- * devm_nvmem_device_get() - Get nvmem cell of device form a given id
++ * devm_nvmem_device_get() - Get nvmem device of device form a given id
+  *
+  * @dev: Device that requests the nvmem device.
+  * @id: name id for the requested nvmem device.
+  *
+- * Return: ERR_PTR() on error or a valid pointer to a struct nvmem_cell
+- * on success.  The nvmem_cell will be freed by the automatically once the
++ * Return: ERR_PTR() on error or a valid pointer to a struct nvmem_device
++ * on success.  The nvmem_device will be freed by the automatically once the
+  * device is freed.
+  */
+ struct nvmem_device *devm_nvmem_device_get(struct device *dev, const char *id)
+diff --git a/drivers/of/irq.c b/drivers/of/irq.c
+index 352e14b007e78..ad0cb49e233ac 100644
+--- a/drivers/of/irq.c
++++ b/drivers/of/irq.c
+@@ -288,7 +288,8 @@ int of_irq_parse_one(struct device_node *device, int 
index, struct of_phandle_ar
+       struct device_node *p;
+       const __be32 *addr;
+       u32 intsize;
+-      int i, res;
++      int i, res, addr_len;
++      __be32 addr_buf[3] = { 0 };
+ 
+       pr_debug("of_irq_parse_one: dev=%pOF, index=%d\n", device, index);
+ 
+@@ -297,13 +298,19 @@ int of_irq_parse_one(struct device_node *device, int 
index, struct of_phandle_ar
+               return of_irq_parse_oldworld(device, index, out_irq);
+ 
+       /* Get the reg property (if any) */
+-      addr = of_get_property(device, "reg", NULL);
++      addr = of_get_property(device, "reg", &addr_len);
++
++      /* Prevent out-of-bounds read in case of longer interrupt parent 
address size */
++      if (addr_len > (3 * sizeof(__be32)))
++              addr_len = 3 * sizeof(__be32);
++      if (addr)
++              memcpy(addr_buf, addr, addr_len);
+ 
+       /* Try the new-style interrupts-extended first */
+       res = of_parse_phandle_with_args(device, "interrupts-extended",
+                                       "#interrupt-cells", index, out_irq);
+       if (!res)
+-              return of_irq_parse_raw(addr, out_irq);
++              return of_irq_parse_raw(addr_buf, out_irq);
+ 
+       /* Look for the interrupt parent. */
+       p = of_irq_find_parent(device);
+@@ -333,7 +340,7 @@ int of_irq_parse_one(struct device_node *device, int 
index, struct of_phandle_ar
+ 
+ 
+       /* Check if there are any interrupt-map translations to process */
+-      res = of_irq_parse_raw(addr, out_irq);
++      res = of_irq_parse_raw(addr_buf, out_irq);
+  out:
+       of_node_put(p);
+       return res;
+diff --git a/drivers/pci/controller/dwc/pci-keystone.c 
b/drivers/pci/controller/dwc/pci-keystone.c
+index b18ddb2b9ef8b..a16fe2a558c7a 100644
+--- a/drivers/pci/controller/dwc/pci-keystone.c
++++ b/drivers/pci/controller/dwc/pci-keystone.c
+@@ -35,6 +35,11 @@
+ #define PCIE_DEVICEID_SHIFT   16
+ 
+ /* Application registers */
++#define PID                           0x000
++#define RTL                           GENMASK(15, 11)
++#define RTL_SHIFT                     11
++#define AM6_PCI_PG1_RTL_VER           0x15
++
+ #define CMD_STATUS                    0x004
+ #define LTSSM_EN_VAL                  BIT(0)
+ #define OB_XLAT_EN_VAL                        BIT(1)
+@@ -107,6 +112,8 @@
+ 
+ #define to_keystone_pcie(x)           dev_get_drvdata((x)->dev)
+ 
++#define PCI_DEVICE_ID_TI_AM654X               0xb00c
++
+ struct ks_pcie_of_data {
+       enum dw_pcie_device_mode mode;
+       const struct dw_pcie_host_ops *host_ops;
+@@ -534,7 +541,11 @@ static int ks_pcie_start_link(struct dw_pcie *pci)
+ static void ks_pcie_quirk(struct pci_dev *dev)
+ {
+       struct pci_bus *bus = dev->bus;
++      struct keystone_pcie *ks_pcie;
++      struct device *bridge_dev;
+       struct pci_dev *bridge;
++      u32 val;
++
+       static const struct pci_device_id rc_pci_devids[] = {
+               { PCI_DEVICE(PCI_VENDOR_ID_TI, PCIE_RC_K2HK),
+                .class = PCI_CLASS_BRIDGE_PCI << 8, .class_mask = ~0, },
+@@ -546,6 +557,11 @@ static void ks_pcie_quirk(struct pci_dev *dev)
+                .class = PCI_CLASS_BRIDGE_PCI << 8, .class_mask = ~0, },
+               { 0, },
+       };
++      static const struct pci_device_id am6_pci_devids[] = {
++              { PCI_DEVICE(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_AM654X),
++               .class = PCI_CLASS_BRIDGE_PCI << 8, .class_mask = ~0, },
++              { 0, },
++      };
+ 
+       if (pci_is_root_bus(bus))
+               bridge = dev;
+@@ -567,10 +583,36 @@ static void ks_pcie_quirk(struct pci_dev *dev)
+        */
+       if (pci_match_id(rc_pci_devids, bridge)) {
+               if (pcie_get_readrq(dev) > 256) {
+-                      dev_info(&dev->dev, "limiting MRRS to 256\n");
++                      dev_info(&dev->dev, "limiting MRRS to 256 bytes\n");
+                       pcie_set_readrq(dev, 256);
+               }
+       }
++
++      /*
++       * Memory transactions fail with PCI controller in AM654 PG1.0
++       * when MRRS is set to more than 128 bytes. Force the MRRS to
++       * 128 bytes in all downstream devices.
++       */
++      if (pci_match_id(am6_pci_devids, bridge)) {
++              bridge_dev = pci_get_host_bridge_device(dev);
++              if (!bridge_dev && !bridge_dev->parent)
++                      return;
++
++              ks_pcie = dev_get_drvdata(bridge_dev->parent);
++              if (!ks_pcie)
++                      return;
++
++              val = ks_pcie_app_readl(ks_pcie, PID);
++              val &= RTL;
++              val >>= RTL_SHIFT;
++              if (val != AM6_PCI_PG1_RTL_VER)
++                      return;
++
++              if (pcie_get_readrq(dev) > 128) {
++                      dev_info(&dev->dev, "limiting MRRS to 128 bytes\n");
++                      pcie_set_readrq(dev, 128);
++              }
++      }
+ }
+ DECLARE_PCI_FIXUP_ENABLE(PCI_ANY_ID, PCI_ANY_ID, ks_pcie_quirk);
+ 
+diff --git a/drivers/pci/hotplug/pnv_php.c b/drivers/pci/hotplug/pnv_php.c
+index d7b2b47bc33eb..3824942618305 100644
+--- a/drivers/pci/hotplug/pnv_php.c
++++ b/drivers/pci/hotplug/pnv_php.c
+@@ -35,7 +35,6 @@ static void pnv_php_disable_irq(struct pnv_php_slot 
*php_slot,
+                               bool disable_device)
+ {
+       struct pci_dev *pdev = php_slot->pdev;
+-      int irq = php_slot->irq;
+       u16 ctrl;
+ 
+       if (php_slot->irq > 0) {
+@@ -54,7 +53,7 @@ static void pnv_php_disable_irq(struct pnv_php_slot 
*php_slot,
+               php_slot->wq = NULL;
+       }
+ 
+-      if (disable_device || irq > 0) {
++      if (disable_device) {
+               if (pdev->msix_enabled)
+                       pci_disable_msix(pdev);
+               else if (pdev->msi_enabled)
+diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
+index deafd229ef8b4..41050a35631fa 100644
+--- a/drivers/pci/pci.c
++++ b/drivers/pci/pci.c
+@@ -5200,10 +5200,12 @@ static void pci_bus_lock(struct pci_bus *bus)
+ {
+       struct pci_dev *dev;
+ 
++      pci_dev_lock(bus->self);
+       list_for_each_entry(dev, &bus->devices, bus_list) {
+-              pci_dev_lock(dev);
+               if (dev->subordinate)
+                       pci_bus_lock(dev->subordinate);
++              else
++                      pci_dev_lock(dev);
+       }
+ }
+ 
+@@ -5215,8 +5217,10 @@ static void pci_bus_unlock(struct pci_bus *bus)
+       list_for_each_entry(dev, &bus->devices, bus_list) {
+               if (dev->subordinate)
+                       pci_bus_unlock(dev->subordinate);
+-              pci_dev_unlock(dev);
++              else
++                      pci_dev_unlock(dev);
+       }
++      pci_dev_unlock(bus->self);
+ }
+ 
+ /* Return 1 on successful lock, 0 on contention */
+@@ -5224,15 +5228,15 @@ static int pci_bus_trylock(struct pci_bus *bus)
+ {
+       struct pci_dev *dev;
+ 
++      if (!pci_dev_trylock(bus->self))
++              return 0;
++
+       list_for_each_entry(dev, &bus->devices, bus_list) {
+-              if (!pci_dev_trylock(dev))
+-                      goto unlock;
+               if (dev->subordinate) {
+-                      if (!pci_bus_trylock(dev->subordinate)) {
+-                              pci_dev_unlock(dev);
++                      if (!pci_bus_trylock(dev->subordinate))
+                               goto unlock;
+-                      }
+-              }
++              } else if (!pci_dev_trylock(dev))
++                      goto unlock;
+       }
+       return 1;
+ 
+@@ -5240,8 +5244,10 @@ static int pci_bus_trylock(struct pci_bus *bus)
+       list_for_each_entry_continue_reverse(dev, &bus->devices, bus_list) {
+               if (dev->subordinate)
+                       pci_bus_unlock(dev->subordinate);
+-              pci_dev_unlock(dev);
++              else
++                      pci_dev_unlock(dev);
+       }
++      pci_dev_unlock(bus->self);
+       return 0;
+ }
+ 
+@@ -5273,9 +5279,10 @@ static void pci_slot_lock(struct pci_slot *slot)
+       list_for_each_entry(dev, &slot->bus->devices, bus_list) {
+               if (!dev->slot || dev->slot != slot)
+                       continue;
+-              pci_dev_lock(dev);
+               if (dev->subordinate)
+                       pci_bus_lock(dev->subordinate);
++              else
++                      pci_dev_lock(dev);
+       }
+ }
+ 
+@@ -5301,14 +5308,13 @@ static int pci_slot_trylock(struct pci_slot *slot)
+       list_for_each_entry(dev, &slot->bus->devices, bus_list) {
+               if (!dev->slot || dev->slot != slot)
+                       continue;
+-              if (!pci_dev_trylock(dev))
+-                      goto unlock;
+               if (dev->subordinate) {
+                       if (!pci_bus_trylock(dev->subordinate)) {
+                               pci_dev_unlock(dev);
+                               goto unlock;
+                       }
+-              }
++              } else if (!pci_dev_trylock(dev))
++                      goto unlock;
+       }
+       return 1;
+ 
+@@ -5319,7 +5325,8 @@ static int pci_slot_trylock(struct pci_slot *slot)
+                       continue;
+               if (dev->subordinate)
+                       pci_bus_unlock(dev->subordinate);
+-              pci_dev_unlock(dev);
++              else
++                      pci_dev_unlock(dev);
+       }
+       return 0;
+ }
+diff --git a/drivers/pcmcia/yenta_socket.c b/drivers/pcmcia/yenta_socket.c
+index 810761ab8e9d2..ba82ccb40db75 100644
+--- a/drivers/pcmcia/yenta_socket.c
++++ b/drivers/pcmcia/yenta_socket.c
+@@ -637,11 +637,11 @@ static int yenta_search_one_res(struct resource *root, 
struct resource *res,
+               start = PCIBIOS_MIN_CARDBUS_IO;
+               end = ~0U;
+       } else {
+-              unsigned long avail = root->end - root->start;
++              unsigned long avail = resource_size(root);
+               int i;
+               size = BRIDGE_MEM_MAX;
+-              if (size > avail/8) {
+-                      size = (avail+1)/8;
++              if (size > (avail - 1) / 8) {
++                      size = avail / 8;
+                       /* round size down to next power of 2 */
+                       i = 0;
+                       while ((size /= 2) != 0)
+diff --git a/drivers/platform/x86/dell-smbios-base.c 
b/drivers/platform/x86/dell-smbios-base.c
+index ceb8e701028df..2f9c3c1f76f1c 100644
+--- a/drivers/platform/x86/dell-smbios-base.c
++++ b/drivers/platform/x86/dell-smbios-base.c
+@@ -610,7 +610,10 @@ static int __init dell_smbios_init(void)
+       return 0;
+ 
+ fail_sysfs:
+-      free_group(platform_device);
++      if (!wmi)
++              exit_dell_smbios_wmi();
++      if (!smm)
++              exit_dell_smbios_smm();
+ 
+ fail_create_group:
+       platform_device_del(platform_device);
+diff --git a/drivers/reset/hisilicon/hi6220_reset.c 
b/drivers/reset/hisilicon/hi6220_reset.c
+index 84e761f454b63..2a7688fa9b9ba 100644
+--- a/drivers/reset/hisilicon/hi6220_reset.c
++++ b/drivers/reset/hisilicon/hi6220_reset.c
+@@ -33,6 +33,7 @@
+ enum hi6220_reset_ctrl_type {
+       PERIPHERAL,
+       MEDIA,
++      AO,
+ };
+ 
+ struct hi6220_reset_data {
+@@ -92,6 +93,65 @@ static const struct reset_control_ops 
hi6220_media_reset_ops = {
+       .deassert = hi6220_media_deassert,
+ };
+ 
++#define AO_SCTRL_SC_PW_CLKEN0     0x800
++#define AO_SCTRL_SC_PW_CLKDIS0    0x804
++
++#define AO_SCTRL_SC_PW_RSTEN0     0x810
++#define AO_SCTRL_SC_PW_RSTDIS0    0x814
++
++#define AO_SCTRL_SC_PW_ISOEN0     0x820
++#define AO_SCTRL_SC_PW_ISODIS0    0x824
++#define AO_MAX_INDEX              12
++
++static int hi6220_ao_assert(struct reset_controller_dev *rc_dev,
++                             unsigned long idx)
++{
++      struct hi6220_reset_data *data = to_reset_data(rc_dev);
++      struct regmap *regmap = data->regmap;
++      int ret;
++
++      ret = regmap_write(regmap, AO_SCTRL_SC_PW_RSTEN0, BIT(idx));
++      if (ret)
++              return ret;
++
++      ret = regmap_write(regmap, AO_SCTRL_SC_PW_ISOEN0, BIT(idx));
++      if (ret)
++              return ret;
++
++      ret = regmap_write(regmap, AO_SCTRL_SC_PW_CLKDIS0, BIT(idx));
++      return ret;
++}
++
++static int hi6220_ao_deassert(struct reset_controller_dev *rc_dev,
++                               unsigned long idx)
++{
++      struct hi6220_reset_data *data = to_reset_data(rc_dev);
++      struct regmap *regmap = data->regmap;
++      int ret;
++
++      /*
++       * It was suggested to disable isolation before enabling
++       * the clocks and deasserting reset, to avoid glitches.
++       * But this order is preserved to keep it matching the
++       * vendor code.
++       */
++      ret = regmap_write(regmap, AO_SCTRL_SC_PW_RSTDIS0, BIT(idx));
++      if (ret)
++              return ret;
++
++      ret = regmap_write(regmap, AO_SCTRL_SC_PW_ISODIS0, BIT(idx));
++      if (ret)
++              return ret;
++
++      ret = regmap_write(regmap, AO_SCTRL_SC_PW_CLKEN0, BIT(idx));
++      return ret;
++}
++
++static const struct reset_control_ops hi6220_ao_reset_ops = {
++      .assert = hi6220_ao_assert,
++      .deassert = hi6220_ao_deassert,
++};
++
+ static int hi6220_reset_probe(struct platform_device *pdev)
+ {
+       struct device_node *np = pdev->dev.of_node;
+@@ -117,9 +177,12 @@ static int hi6220_reset_probe(struct platform_device 
*pdev)
+       if (type == MEDIA) {
+               data->rc_dev.ops = &hi6220_media_reset_ops;
+               data->rc_dev.nr_resets = MEDIA_MAX_INDEX;
+-      } else {
++      } else if (type == PERIPHERAL) {
+               data->rc_dev.ops = &hi6220_peripheral_reset_ops;
+               data->rc_dev.nr_resets = PERIPH_MAX_INDEX;
++      } else {
++              data->rc_dev.ops = &hi6220_ao_reset_ops;
++              data->rc_dev.nr_resets = AO_MAX_INDEX;
+       }
+ 
+       return reset_controller_register(&data->rc_dev);
+@@ -134,6 +197,10 @@ static const struct of_device_id hi6220_reset_match[] = {
+               .compatible = "hisilicon,hi6220-mediactrl",
+               .data = (void *)MEDIA,
+       },
++      {
++              .compatible = "hisilicon,hi6220-aoctrl",
++              .data = (void *)AO,
++      },
+       { /* sentinel */ },
+ };
+ MODULE_DEVICE_TABLE(of, hi6220_reset_match);
+diff --git a/drivers/staging/iio/frequency/ad9834.c 
b/drivers/staging/iio/frequency/ad9834.c
+index 23026978a5a5f..2e661a905a577 100644
+--- a/drivers/staging/iio/frequency/ad9834.c
++++ b/drivers/staging/iio/frequency/ad9834.c
+@@ -115,7 +115,7 @@ static int ad9834_write_frequency(struct ad9834_state *st,
+ 
+       clk_freq = clk_get_rate(st->mclk);
+ 
+-      if (fout > (clk_freq / 2))
++      if (!clk_freq || fout > (clk_freq / 2))
+               return -EINVAL;
+ 
+       regval = ad9834_calc_freqreg(clk_freq, fout);
+diff --git a/drivers/uio/uio_hv_generic.c b/drivers/uio/uio_hv_generic.c
+index bdf3932ee3f20..8ea5ae954243c 100644
+--- a/drivers/uio/uio_hv_generic.c
++++ b/drivers/uio/uio_hv_generic.c
+@@ -104,10 +104,11 @@ static void hv_uio_channel_cb(void *context)
+ 
+ /*
+  * Callback from vmbus_event when channel is rescinded.
++ * It is meant for rescind of primary channels only.
+  */
+ static void hv_uio_rescind(struct vmbus_channel *channel)
+ {
+-      struct hv_device *hv_dev = channel->primary_channel->device_obj;
++      struct hv_device *hv_dev = channel->device_obj;
+       struct hv_uio_private_data *pdata = hv_get_drvdata(hv_dev);
+ 
+       /*
+@@ -118,6 +119,14 @@ static void hv_uio_rescind(struct vmbus_channel *channel)
+ 
+       /* Wake up reader */
+       uio_event_notify(&pdata->info);
++
++      /*
++       * With rescind callback registered, rescind path will not unregister 
the device
++       * from vmbus when the primary channel is rescinded.
++       * Without it, rescind handling is incomplete and next onoffer msg does 
not come.
++       * Unregister the device from vmbus here.
++       */
++      vmbus_device_unregister(channel->device_obj);
+ }
+ 
+ /* Sysfs API to allow mmap of the ring buffers
+diff --git a/drivers/usb/storage/uas.c b/drivers/usb/storage/uas.c
+index 678903d1ce4da..7493b4d9d1f58 100644
+--- a/drivers/usb/storage/uas.c
++++ b/drivers/usb/storage/uas.c
+@@ -424,6 +424,7 @@ static void uas_data_cmplt(struct urb *urb)
+                       uas_log_cmd_state(cmnd, "data cmplt err", status);
+               /* error: no data transfered */
+               scsi_set_resid(cmnd, sdb->length);
++              set_host_byte(cmnd, DID_ERROR);
+       } else {
+               scsi_set_resid(cmnd, sdb->length - urb->actual_length);
+       }
+diff --git a/drivers/usb/typec/ucsi/ucsi.h b/drivers/usb/typec/ucsi/ucsi.h
+index de87d0b8319d0..179ad343f42f0 100644
+--- a/drivers/usb/typec/ucsi/ucsi.h
++++ b/drivers/usb/typec/ucsi/ucsi.h
+@@ -446,7 +446,7 @@ ucsi_register_displayport(struct ucsi_connector *con,
+                         bool override, int offset,
+                         struct typec_altmode_desc *desc)
+ {
+-      return NULL;
++      return typec_port_register_altmode(con->port, desc);
+ }
+ 
+ static inline void
+diff --git a/drivers/usb/usbip/stub_rx.c b/drivers/usb/usbip/stub_rx.c
+index d3d360ff0d24e..6be5cd87e7cbb 100644
+--- a/drivers/usb/usbip/stub_rx.c
++++ b/drivers/usb/usbip/stub_rx.c
+@@ -144,53 +144,62 @@ static int tweak_set_configuration_cmd(struct urb *urb)
+       if (err && err != -ENODEV)
+               dev_err(&sdev->udev->dev, "can't set config #%d, error %d\n",
+                       config, err);
+-      return 0;
++      return err;
+ }
+ 
+ static int tweak_reset_device_cmd(struct urb *urb)
+ {
+       struct stub_priv *priv = (struct stub_priv *) urb->context;
+       struct stub_device *sdev = priv->sdev;
++      int err;
+ 
+       dev_info(&urb->dev->dev, "usb_queue_reset_device\n");
+ 
+-      if (usb_lock_device_for_reset(sdev->udev, NULL) < 0) {
++      err = usb_lock_device_for_reset(sdev->udev, NULL);
++      if (err < 0) {
+               dev_err(&urb->dev->dev, "could not obtain lock to reset 
device\n");
+-              return 0;
++              return err;
+       }
+-      usb_reset_device(sdev->udev);
++      err = usb_reset_device(sdev->udev);
+       usb_unlock_device(sdev->udev);
+ 
+-      return 0;
++      return err;
+ }
+ 
+ /*
+  * clear_halt, set_interface, and set_configuration require special tricks.
++ * Returns 1 if request was tweaked, 0 otherwise.
+  */
+-static void tweak_special_requests(struct urb *urb)
++static int tweak_special_requests(struct urb *urb)
+ {
++      int err;
++
+       if (!urb || !urb->setup_packet)
+-              return;
++              return 0;
+ 
+       if (usb_pipetype(urb->pipe) != PIPE_CONTROL)
+-              return;
++              return 0;
+ 
+       if (is_clear_halt_cmd(urb))
+               /* tweak clear_halt */
+-               tweak_clear_halt_cmd(urb);
++              err = tweak_clear_halt_cmd(urb);
+ 
+       else if (is_set_interface_cmd(urb))
+               /* tweak set_interface */
+-              tweak_set_interface_cmd(urb);
++              err = tweak_set_interface_cmd(urb);
+ 
+       else if (is_set_configuration_cmd(urb))
+               /* tweak set_configuration */
+-              tweak_set_configuration_cmd(urb);
++              err = tweak_set_configuration_cmd(urb);
+ 
+       else if (is_reset_device_cmd(urb))
+-              tweak_reset_device_cmd(urb);
+-      else
++              err = tweak_reset_device_cmd(urb);
++      else {
+               usbip_dbg_stub_rx("no need to tweak\n");
++              return 0;
++      }
++
++      return !err;
+ }
+ 
+ /*
+@@ -468,6 +477,7 @@ static void stub_recv_cmd_submit(struct stub_device *sdev,
+       int support_sg = 1;
+       int np = 0;
+       int ret, i;
++      int is_tweaked;
+ 
+       if (pipe == -1)
+               return;
+@@ -580,8 +590,11 @@ static void stub_recv_cmd_submit(struct stub_device *sdev,
+               priv->urbs[i]->pipe = pipe;
+               priv->urbs[i]->complete = stub_complete;
+ 
+-              /* no need to submit an intercepted request, but harmless? */
+-              tweak_special_requests(priv->urbs[i]);
++              /*
++               * all URBs belong to a single PDU, so a global is_tweaked flag 
is
++               * enough
++               */
++              is_tweaked = tweak_special_requests(priv->urbs[i]);
+ 
+               masking_bogus_flags(priv->urbs[i]);
+       }
+@@ -594,22 +607,32 @@ static void stub_recv_cmd_submit(struct stub_device 
*sdev,
+ 
+       /* urb is now ready to submit */
+       for (i = 0; i < priv->num_urbs; i++) {
+-              ret = usb_submit_urb(priv->urbs[i], GFP_KERNEL);
++              if (!is_tweaked) {
++                      ret = usb_submit_urb(priv->urbs[i], GFP_KERNEL);
+ 
+-              if (ret == 0)
+-                      usbip_dbg_stub_rx("submit urb ok, seqnum %u\n",
+-                                      pdu->base.seqnum);
+-              else {
+-                      dev_err(&udev->dev, "submit_urb error, %d\n", ret);
+-                      usbip_dump_header(pdu);
+-                      usbip_dump_urb(priv->urbs[i]);
++                      if (ret == 0)
++                              usbip_dbg_stub_rx("submit urb ok, seqnum %u\n",
++                                              pdu->base.seqnum);
++                      else {
++                              dev_err(&udev->dev, "submit_urb error, %d\n", 
ret);
++                              usbip_dump_header(pdu);
++                              usbip_dump_urb(priv->urbs[i]);
+ 
++                              /*
++                               * Pessimistic.
++                               * This connection will be discarded.
++                               */
++                              usbip_event_add(ud, SDEV_EVENT_ERROR_SUBMIT);
++                              break;
++                      }
++              } else {
+                       /*
+-                       * Pessimistic.
+-                       * This connection will be discarded.
++                       * An identical URB was already submitted in
++                       * tweak_special_requests(). Skip submitting this URB 
to not
++                       * duplicate the request.
+                        */
+-                      usbip_event_add(ud, SDEV_EVENT_ERROR_SUBMIT);
+-                      break;
++                      priv->urbs[i]->status = 0;
++                      stub_complete(priv->urbs[i]);
+               }
+       }
+ 
+diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
+index a28b0eafb65ad..7e5ac187463ed 100644
+--- a/fs/btrfs/extent-tree.c
++++ b/fs/btrfs/extent-tree.c
+@@ -4684,7 +4684,15 @@ static noinline void reada_walk_down(struct 
btrfs_trans_handle *trans,
+               /* We don't care about errors in readahead. */
+               if (ret < 0)
+                       continue;
+-              BUG_ON(refs == 0);
++
++              /*
++               * This could be racey, it's conceivable that we raced and end
++               * up with a bogus refs count, if that's the case just skip, if
++               * we are actually corrupt we will notice when we look up
++               * everything again with our locks.
++               */
++              if (refs == 0)
++                      continue;
+ 
+               if (wc->stage == DROP_REFERENCE) {
+                       if (refs == 1)
+@@ -4743,7 +4751,7 @@ static noinline int walk_down_proc(struct 
btrfs_trans_handle *trans,
+       if (lookup_info &&
+           ((wc->stage == DROP_REFERENCE && wc->refs[level] != 1) ||
+            (wc->stage == UPDATE_BACKREF && !(wc->flags[level] & flag)))) {
+-              BUG_ON(!path->locks[level]);
++              ASSERT(path->locks[level]);
+               ret = btrfs_lookup_extent_info(trans, fs_info,
+                                              eb->start, level, 1,
+                                              &wc->refs[level],
+@@ -4751,7 +4759,11 @@ static noinline int walk_down_proc(struct 
btrfs_trans_handle *trans,
+               BUG_ON(ret == -ENOMEM);
+               if (ret)
+                       return ret;
+-              BUG_ON(wc->refs[level] == 0);
++              if (unlikely(wc->refs[level] == 0)) {
++                      btrfs_err(fs_info, "bytenr %llu has 0 references, 
expect > 0",
++                                eb->start);
++                      return -EUCLEAN;
++              }
+       }
+ 
+       if (wc->stage == DROP_REFERENCE) {
+@@ -4767,7 +4779,7 @@ static noinline int walk_down_proc(struct 
btrfs_trans_handle *trans,
+ 
+       /* wc->stage == UPDATE_BACKREF */
+       if (!(wc->flags[level] & flag)) {
+-              BUG_ON(!path->locks[level]);
++              ASSERT(path->locks[level]);
+               ret = btrfs_inc_ref(trans, root, eb, 1);
+               BUG_ON(ret); /* -ENOMEM */
+               ret = btrfs_dec_ref(trans, root, eb, 0);
+@@ -4885,8 +4897,9 @@ static noinline int do_walk_down(struct 
btrfs_trans_handle *trans,
+               goto out_unlock;
+ 
+       if (unlikely(wc->refs[level - 1] == 0)) {
+-              btrfs_err(fs_info, "Missing references.");
+-              ret = -EIO;
++              btrfs_err(fs_info, "bytenr %llu has 0 references, expect > 0",
++                        bytenr);
++              ret = -EUCLEAN;
+               goto out_unlock;
+       }
+       *lookup_info = 0;
+@@ -5088,7 +5101,12 @@ static noinline int walk_up_proc(struct 
btrfs_trans_handle *trans,
+                               path->locks[level] = 0;
+                               return ret;
+                       }
+-                      BUG_ON(wc->refs[level] == 0);
++                      if (unlikely(wc->refs[level] == 0)) {
++                              btrfs_tree_unlock_rw(eb, path->locks[level]);
++                              btrfs_err(fs_info, "bytenr %llu has 0 
references, expect > 0",
++                                        eb->start);
++                              return -EUCLEAN;
++                      }
+                       if (wc->refs[level] == 1) {
+                               btrfs_tree_unlock_rw(eb, path->locks[level]);
+                               path->locks[level] = 0;
+diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
+index d2a988bf9c895..cd72409ccc943 100644
+--- a/fs/btrfs/inode.c
++++ b/fs/btrfs/inode.c
+@@ -6087,7 +6087,7 @@ struct inode *btrfs_lookup_dentry(struct inode *dir, 
struct dentry *dentry)
+       struct inode *inode;
+       struct btrfs_root *root = BTRFS_I(dir)->root;
+       struct btrfs_root *sub_root = root;
+-      struct btrfs_key location;
++      struct btrfs_key location = { 0 };
+       u8 di_type = 0;
+       int index;
+       int ret = 0;
+diff --git a/fs/fuse/file.c b/fs/fuse/file.c
+index f6c499dbfd065..d157eef3ede2d 100644
+--- a/fs/fuse/file.c
++++ b/fs/fuse/file.c
+@@ -1694,10 +1694,16 @@ __acquires(fi->lock)
+       fuse_writepage_finish(fc, wpa);
+       spin_unlock(&fi->lock);
+ 
+-      /* After fuse_writepage_finish() aux request list is private */
++      /* After rb_erase() aux request list is private */
+       for (aux = wpa->next; aux; aux = next) {
++              struct backing_dev_info *bdi = inode_to_bdi(aux->inode);
++
+               next = aux->next;
+               aux->next = NULL;
++
++              dec_wb_stat(&bdi->wb, WB_WRITEBACK);
++              dec_node_page_state(aux->ia.ap.pages[0], NR_WRITEBACK_TEMP);
++              wb_writeout_inc(&bdi->wb);
+               fuse_writepage_free(aux);
+       }
+ 
+diff --git a/fs/fuse/xattr.c b/fs/fuse/xattr.c
+index 28fed52957707..cd93c5369068e 100644
+--- a/fs/fuse/xattr.c
++++ b/fs/fuse/xattr.c
+@@ -79,7 +79,7 @@ ssize_t fuse_getxattr(struct inode *inode, const char *name, 
void *value,
+       }
+       ret = fuse_simple_request(fc, &args);
+       if (!ret && !size)
+-              ret = min_t(ssize_t, outarg.size, XATTR_SIZE_MAX);
++              ret = min_t(size_t, outarg.size, XATTR_SIZE_MAX);
+       if (ret == -ENOSYS) {
+               fc->no_getxattr = 1;
+               ret = -EOPNOTSUPP;
+@@ -141,7 +141,7 @@ ssize_t fuse_listxattr(struct dentry *entry, char *list, 
size_t size)
+       }
+       ret = fuse_simple_request(fc, &args);
+       if (!ret && !size)
+-              ret = min_t(ssize_t, outarg.size, XATTR_LIST_MAX);
++              ret = min_t(size_t, outarg.size, XATTR_LIST_MAX);
+       if (ret > 0 && size)
+               ret = fuse_verify_xattr_list(list, ret);
+       if (ret == -ENOSYS) {
+diff --git a/fs/nfs/super.c b/fs/nfs/super.c
+index c7ca8cdc8801e..98fbd2c5d7b74 100644
+--- a/fs/nfs/super.c
++++ b/fs/nfs/super.c
+@@ -47,6 +47,7 @@
+ #include <linux/vfs.h>
+ #include <linux/inet.h>
+ #include <linux/in6.h>
++#include <linux/sched.h>
+ #include <linux/slab.h>
+ #include <net/ipv6.h>
+ #include <linux/netdevice.h>
+@@ -454,6 +455,7 @@ static int __nfs_list_for_each_server(struct list_head 
*head,
+               ret = fn(server, data);
+               if (ret)
+                       goto out;
++              cond_resched();
+               rcu_read_lock();
+       }
+       rcu_read_unlock();
+diff --git a/fs/nilfs2/recovery.c b/fs/nilfs2/recovery.c
+index 0923231e9e605..f9390e5a7fce5 100644
+--- a/fs/nilfs2/recovery.c
++++ b/fs/nilfs2/recovery.c
+@@ -708,6 +708,33 @@ static void nilfs_finish_roll_forward(struct the_nilfs 
*nilfs,
+       brelse(bh);
+ }
+ 
++/**
++ * nilfs_abort_roll_forward - cleaning up after a failed rollforward recovery
++ * @nilfs: nilfs object
++ */
++static void nilfs_abort_roll_forward(struct the_nilfs *nilfs)
++{
++      struct nilfs_inode_info *ii, *n;
++      LIST_HEAD(head);
++
++      /* Abandon inodes that have read recovery data */
++      spin_lock(&nilfs->ns_inode_lock);
++      list_splice_init(&nilfs->ns_dirty_files, &head);
++      spin_unlock(&nilfs->ns_inode_lock);
++      if (list_empty(&head))
++              return;
++
++      set_nilfs_purging(nilfs);
++      list_for_each_entry_safe(ii, n, &head, i_dirty) {
++              spin_lock(&nilfs->ns_inode_lock);
++              list_del_init(&ii->i_dirty);
++              spin_unlock(&nilfs->ns_inode_lock);
++
++              iput(&ii->vfs_inode);
++      }
++      clear_nilfs_purging(nilfs);
++}
++
+ /**
+  * nilfs_salvage_orphan_logs - salvage logs written after the latest 
checkpoint
+  * @nilfs: nilfs object
+@@ -766,15 +793,19 @@ int nilfs_salvage_orphan_logs(struct the_nilfs *nilfs,
+               if (unlikely(err)) {
+                       nilfs_err(sb, "error %d writing segment for recovery",
+                                 err);
+-                      goto failed;
++                      goto put_root;
+               }
+ 
+               nilfs_finish_roll_forward(nilfs, ri);
+       }
+ 
+- failed:
++put_root:
+       nilfs_put_root(root);
+       return err;
++
++failed:
++      nilfs_abort_roll_forward(nilfs);
++      goto put_root;
+ }
+ 
+ /**
+diff --git a/fs/nilfs2/segment.c b/fs/nilfs2/segment.c
+index 3c4272762779c..9a5dd4106c3d2 100644
+--- a/fs/nilfs2/segment.c
++++ b/fs/nilfs2/segment.c
+@@ -1828,6 +1828,9 @@ static void nilfs_segctor_abort_construction(struct 
nilfs_sc_info *sci,
+       nilfs_abort_logs(&logs, ret ? : err);
+ 
+       list_splice_tail_init(&sci->sc_segbufs, &logs);
++      if (list_empty(&logs))
++              return; /* if the first segment buffer preparation failed */
++
+       nilfs_cancel_segusage(&logs, nilfs->ns_sufile);
+       nilfs_free_incomplete_logs(&logs, nilfs);
+ 
+@@ -2072,7 +2075,7 @@ static int nilfs_segctor_do_construct(struct 
nilfs_sc_info *sci, int mode)
+ 
+               err = nilfs_segctor_begin_construction(sci, nilfs);
+               if (unlikely(err))
+-                      goto out;
++                      goto failed;
+ 
+               /* Update time stamp */
+               sci->sc_seg_ctime = ktime_get_real_seconds();
+@@ -2135,10 +2138,9 @@ static int nilfs_segctor_do_construct(struct 
nilfs_sc_info *sci, int mode)
+       return err;
+ 
+  failed_to_write:
+-      if (sci->sc_stage.flags & NILFS_CF_IFILE_STARTED)
+-              nilfs_redirty_inodes(&sci->sc_dirty_files);
+-
+  failed:
++      if (mode == SC_LSEG_SR && nilfs_sc_cstage_get(sci) >= NILFS_ST_IFILE)
++              nilfs_redirty_inodes(&sci->sc_dirty_files);
+       if (nilfs_doing_gc())
+               nilfs_redirty_inodes(&sci->sc_gc_inodes);
+       nilfs_segctor_abort_construction(sci, nilfs, err);
+diff --git a/fs/nilfs2/sysfs.c b/fs/nilfs2/sysfs.c
+index 57afd06db62de..64ea44be0a646 100644
+--- a/fs/nilfs2/sysfs.c
++++ b/fs/nilfs2/sysfs.c
+@@ -108,7 +108,7 @@ static ssize_t
+ nilfs_snapshot_inodes_count_show(struct nilfs_snapshot_attr *attr,
+                                struct nilfs_root *root, char *buf)
+ {
+-      return snprintf(buf, PAGE_SIZE, "%llu\n",
++      return sysfs_emit(buf, "%llu\n",
+                       (unsigned long long)atomic64_read(&root->inodes_count));
+ }
+ 
+@@ -116,7 +116,7 @@ static ssize_t
+ nilfs_snapshot_blocks_count_show(struct nilfs_snapshot_attr *attr,
+                                struct nilfs_root *root, char *buf)
+ {
+-      return snprintf(buf, PAGE_SIZE, "%llu\n",
++      return sysfs_emit(buf, "%llu\n",
+                       (unsigned long long)atomic64_read(&root->blocks_count));
+ }
+ 
+@@ -129,7 +129,7 @@ static ssize_t
+ nilfs_snapshot_README_show(struct nilfs_snapshot_attr *attr,
+                           struct nilfs_root *root, char *buf)
+ {
+-      return snprintf(buf, PAGE_SIZE, snapshot_readme_str);
++      return sysfs_emit(buf, snapshot_readme_str);
+ }
+ 
+ NILFS_SNAPSHOT_RO_ATTR(inodes_count);
+@@ -230,7 +230,7 @@ static ssize_t
+ nilfs_mounted_snapshots_README_show(struct nilfs_mounted_snapshots_attr *attr,
+                                   struct the_nilfs *nilfs, char *buf)
+ {
+-      return snprintf(buf, PAGE_SIZE, mounted_snapshots_readme_str);
++      return sysfs_emit(buf, mounted_snapshots_readme_str);
+ }
+ 
+ NILFS_MOUNTED_SNAPSHOTS_RO_ATTR(README);
+@@ -268,7 +268,7 @@ nilfs_checkpoints_checkpoints_number_show(struct 
nilfs_checkpoints_attr *attr,
+ 
+       ncheckpoints = cpstat.cs_ncps;
+ 
+-      return snprintf(buf, PAGE_SIZE, "%llu\n", ncheckpoints);
++      return sysfs_emit(buf, "%llu\n", ncheckpoints);
+ }
+ 
+ static ssize_t
+@@ -291,7 +291,7 @@ nilfs_checkpoints_snapshots_number_show(struct 
nilfs_checkpoints_attr *attr,
+ 
+       nsnapshots = cpstat.cs_nsss;
+ 
+-      return snprintf(buf, PAGE_SIZE, "%llu\n", nsnapshots);
++      return sysfs_emit(buf, "%llu\n", nsnapshots);
+ }
+ 
+ static ssize_t
+@@ -305,7 +305,7 @@ nilfs_checkpoints_last_seg_checkpoint_show(struct 
nilfs_checkpoints_attr *attr,
+       last_cno = nilfs->ns_last_cno;
+       spin_unlock(&nilfs->ns_last_segment_lock);
+ 
+-      return snprintf(buf, PAGE_SIZE, "%llu\n", last_cno);
++      return sysfs_emit(buf, "%llu\n", last_cno);
+ }
+ 
+ static ssize_t
+@@ -319,7 +319,7 @@ nilfs_checkpoints_next_checkpoint_show(struct 
nilfs_checkpoints_attr *attr,
+       cno = nilfs->ns_cno;
+       up_read(&nilfs->ns_segctor_sem);
+ 
+-      return snprintf(buf, PAGE_SIZE, "%llu\n", cno);
++      return sysfs_emit(buf, "%llu\n", cno);
+ }
+ 
+ static const char checkpoints_readme_str[] =
+@@ -335,7 +335,7 @@ static ssize_t
+ nilfs_checkpoints_README_show(struct nilfs_checkpoints_attr *attr,
+                               struct the_nilfs *nilfs, char *buf)
+ {
+-      return snprintf(buf, PAGE_SIZE, checkpoints_readme_str);
++      return sysfs_emit(buf, checkpoints_readme_str);
+ }
+ 
+ NILFS_CHECKPOINTS_RO_ATTR(checkpoints_number);
+@@ -366,7 +366,7 @@ nilfs_segments_segments_number_show(struct 
nilfs_segments_attr *attr,
+                                    struct the_nilfs *nilfs,
+                                    char *buf)
+ {
+-      return snprintf(buf, PAGE_SIZE, "%lu\n", nilfs->ns_nsegments);
++      return sysfs_emit(buf, "%lu\n", nilfs->ns_nsegments);
+ }
+ 
+ static ssize_t
+@@ -374,7 +374,7 @@ nilfs_segments_blocks_per_segment_show(struct 
nilfs_segments_attr *attr,
+                                       struct the_nilfs *nilfs,
+                                       char *buf)
+ {
+-      return snprintf(buf, PAGE_SIZE, "%lu\n", nilfs->ns_blocks_per_segment);
++      return sysfs_emit(buf, "%lu\n", nilfs->ns_blocks_per_segment);
+ }
+ 
+ static ssize_t
+@@ -388,7 +388,7 @@ nilfs_segments_clean_segments_show(struct 
nilfs_segments_attr *attr,
+       ncleansegs = nilfs_sufile_get_ncleansegs(nilfs->ns_sufile);
+       up_read(&NILFS_MDT(nilfs->ns_dat)->mi_sem);
+ 
+-      return snprintf(buf, PAGE_SIZE, "%lu\n", ncleansegs);
++      return sysfs_emit(buf, "%lu\n", ncleansegs);
+ }
+ 
+ static ssize_t
+@@ -408,7 +408,7 @@ nilfs_segments_dirty_segments_show(struct 
nilfs_segments_attr *attr,
+               return err;
+       }
+ 
+-      return snprintf(buf, PAGE_SIZE, "%llu\n", sustat.ss_ndirtysegs);
++      return sysfs_emit(buf, "%llu\n", sustat.ss_ndirtysegs);
+ }
+ 
+ static const char segments_readme_str[] =
+@@ -424,7 +424,7 @@ nilfs_segments_README_show(struct nilfs_segments_attr 
*attr,
+                           struct the_nilfs *nilfs,
+                           char *buf)
+ {
+-      return snprintf(buf, PAGE_SIZE, segments_readme_str);
++      return sysfs_emit(buf, segments_readme_str);
+ }
+ 
+ NILFS_SEGMENTS_RO_ATTR(segments_number);
+@@ -461,7 +461,7 @@ nilfs_segctor_last_pseg_block_show(struct 
nilfs_segctor_attr *attr,
+       last_pseg = nilfs->ns_last_pseg;
+       spin_unlock(&nilfs->ns_last_segment_lock);
+ 
+-      return snprintf(buf, PAGE_SIZE, "%llu\n",
++      return sysfs_emit(buf, "%llu\n",
+                       (unsigned long long)last_pseg);
+ }
+ 
+@@ -476,7 +476,7 @@ nilfs_segctor_last_seg_sequence_show(struct 
nilfs_segctor_attr *attr,
+       last_seq = nilfs->ns_last_seq;
+       spin_unlock(&nilfs->ns_last_segment_lock);
+ 
+-      return snprintf(buf, PAGE_SIZE, "%llu\n", last_seq);
++      return sysfs_emit(buf, "%llu\n", last_seq);
+ }
+ 
+ static ssize_t
+@@ -490,7 +490,7 @@ nilfs_segctor_last_seg_checkpoint_show(struct 
nilfs_segctor_attr *attr,
+       last_cno = nilfs->ns_last_cno;
+       spin_unlock(&nilfs->ns_last_segment_lock);
+ 
+-      return snprintf(buf, PAGE_SIZE, "%llu\n", last_cno);
++      return sysfs_emit(buf, "%llu\n", last_cno);
+ }
+ 
+ static ssize_t
+@@ -504,7 +504,7 @@ nilfs_segctor_current_seg_sequence_show(struct 
nilfs_segctor_attr *attr,
+       seg_seq = nilfs->ns_seg_seq;
+       up_read(&nilfs->ns_segctor_sem);
+ 
+-      return snprintf(buf, PAGE_SIZE, "%llu\n", seg_seq);
++      return sysfs_emit(buf, "%llu\n", seg_seq);
+ }
+ 
+ static ssize_t
+@@ -518,7 +518,7 @@ nilfs_segctor_current_last_full_seg_show(struct 
nilfs_segctor_attr *attr,
+       segnum = nilfs->ns_segnum;
+       up_read(&nilfs->ns_segctor_sem);
+ 
+-      return snprintf(buf, PAGE_SIZE, "%llu\n", segnum);
++      return sysfs_emit(buf, "%llu\n", segnum);
+ }
+ 
+ static ssize_t
+@@ -532,7 +532,7 @@ nilfs_segctor_next_full_seg_show(struct nilfs_segctor_attr 
*attr,
+       nextnum = nilfs->ns_nextnum;
+       up_read(&nilfs->ns_segctor_sem);
+ 
+-      return snprintf(buf, PAGE_SIZE, "%llu\n", nextnum);
++      return sysfs_emit(buf, "%llu\n", nextnum);
+ }
+ 
+ static ssize_t
+@@ -546,7 +546,7 @@ nilfs_segctor_next_pseg_offset_show(struct 
nilfs_segctor_attr *attr,
+       pseg_offset = nilfs->ns_pseg_offset;
+       up_read(&nilfs->ns_segctor_sem);
+ 
+-      return snprintf(buf, PAGE_SIZE, "%lu\n", pseg_offset);
++      return sysfs_emit(buf, "%lu\n", pseg_offset);
+ }
+ 
+ static ssize_t
+@@ -560,7 +560,7 @@ nilfs_segctor_next_checkpoint_show(struct 
nilfs_segctor_attr *attr,
+       cno = nilfs->ns_cno;
+       up_read(&nilfs->ns_segctor_sem);
+ 
+-      return snprintf(buf, PAGE_SIZE, "%llu\n", cno);
++      return sysfs_emit(buf, "%llu\n", cno);
+ }
+ 
+ static ssize_t
+@@ -588,7 +588,7 @@ nilfs_segctor_last_seg_write_time_secs_show(struct 
nilfs_segctor_attr *attr,
+       ctime = nilfs->ns_ctime;
+       up_read(&nilfs->ns_segctor_sem);
+ 
+-      return snprintf(buf, PAGE_SIZE, "%llu\n", ctime);
++      return sysfs_emit(buf, "%llu\n", ctime);
+ }
+ 
+ static ssize_t
+@@ -616,7 +616,7 @@ nilfs_segctor_last_nongc_write_time_secs_show(struct 
nilfs_segctor_attr *attr,
+       nongc_ctime = nilfs->ns_nongc_ctime;
+       up_read(&nilfs->ns_segctor_sem);
+ 
+-      return snprintf(buf, PAGE_SIZE, "%llu\n", nongc_ctime);
++      return sysfs_emit(buf, "%llu\n", nongc_ctime);
+ }
+ 
+ static ssize_t
+@@ -630,7 +630,7 @@ nilfs_segctor_dirty_data_blocks_count_show(struct 
nilfs_segctor_attr *attr,
+       ndirtyblks = atomic_read(&nilfs->ns_ndirtyblks);
+       up_read(&nilfs->ns_segctor_sem);
+ 
+-      return snprintf(buf, PAGE_SIZE, "%u\n", ndirtyblks);
++      return sysfs_emit(buf, "%u\n", ndirtyblks);
+ }
+ 
+ static const char segctor_readme_str[] =
+@@ -667,7 +667,7 @@ static ssize_t
+ nilfs_segctor_README_show(struct nilfs_segctor_attr *attr,
+                         struct the_nilfs *nilfs, char *buf)
+ {
+-      return snprintf(buf, PAGE_SIZE, segctor_readme_str);
++      return sysfs_emit(buf, segctor_readme_str);
+ }
+ 
+ NILFS_SEGCTOR_RO_ATTR(last_pseg_block);
+@@ -736,7 +736,7 @@ nilfs_superblock_sb_write_time_secs_show(struct 
nilfs_superblock_attr *attr,
+       sbwtime = nilfs->ns_sbwtime;
+       up_read(&nilfs->ns_sem);
+ 
+-      return snprintf(buf, PAGE_SIZE, "%llu\n", sbwtime);
++      return sysfs_emit(buf, "%llu\n", sbwtime);
+ }
+ 
+ static ssize_t
+@@ -750,7 +750,7 @@ nilfs_superblock_sb_write_count_show(struct 
nilfs_superblock_attr *attr,
+       sbwcount = nilfs->ns_sbwcount;
+       up_read(&nilfs->ns_sem);
+ 
+-      return snprintf(buf, PAGE_SIZE, "%u\n", sbwcount);
++      return sysfs_emit(buf, "%u\n", sbwcount);
+ }
+ 
+ static ssize_t
+@@ -764,7 +764,7 @@ nilfs_superblock_sb_update_frequency_show(struct 
nilfs_superblock_attr *attr,
+       sb_update_freq = nilfs->ns_sb_update_freq;
+       up_read(&nilfs->ns_sem);
+ 
+-      return snprintf(buf, PAGE_SIZE, "%u\n", sb_update_freq);
++      return sysfs_emit(buf, "%u\n", sb_update_freq);
+ }
+ 
+ static ssize_t
+@@ -812,7 +812,7 @@ static ssize_t
+ nilfs_superblock_README_show(struct nilfs_superblock_attr *attr,
+                               struct the_nilfs *nilfs, char *buf)
+ {
+-      return snprintf(buf, PAGE_SIZE, sb_readme_str);
++      return sysfs_emit(buf, sb_readme_str);
+ }
+ 
+ NILFS_SUPERBLOCK_RO_ATTR(sb_write_time);
+@@ -843,11 +843,17 @@ ssize_t nilfs_dev_revision_show(struct nilfs_dev_attr 
*attr,
+                               struct the_nilfs *nilfs,
+                               char *buf)
+ {
+-      struct nilfs_super_block **sbp = nilfs->ns_sbp;
+-      u32 major = le32_to_cpu(sbp[0]->s_rev_level);
+-      u16 minor = le16_to_cpu(sbp[0]->s_minor_rev_level);
++      struct nilfs_super_block *raw_sb;
++      u32 major;
++      u16 minor;
+ 
+-      return snprintf(buf, PAGE_SIZE, "%d.%d\n", major, minor);
++      down_read(&nilfs->ns_sem);
++      raw_sb = nilfs->ns_sbp[0];
++      major = le32_to_cpu(raw_sb->s_rev_level);
++      minor = le16_to_cpu(raw_sb->s_minor_rev_level);
++      up_read(&nilfs->ns_sem);
++
++      return sysfs_emit(buf, "%d.%d\n", major, minor);
+ }
+ 
+ static
+@@ -855,7 +861,7 @@ ssize_t nilfs_dev_blocksize_show(struct nilfs_dev_attr 
*attr,
+                                struct the_nilfs *nilfs,
+                                char *buf)
+ {
+-      return snprintf(buf, PAGE_SIZE, "%u\n", nilfs->ns_blocksize);
++      return sysfs_emit(buf, "%u\n", nilfs->ns_blocksize);
+ }
+ 
+ static
+@@ -863,10 +869,15 @@ ssize_t nilfs_dev_device_size_show(struct nilfs_dev_attr 
*attr,
+                                   struct the_nilfs *nilfs,
+                                   char *buf)
+ {
+-      struct nilfs_super_block **sbp = nilfs->ns_sbp;
+-      u64 dev_size = le64_to_cpu(sbp[0]->s_dev_size);
++      struct nilfs_super_block *raw_sb;
++      u64 dev_size;
++
++      down_read(&nilfs->ns_sem);
++      raw_sb = nilfs->ns_sbp[0];
++      dev_size = le64_to_cpu(raw_sb->s_dev_size);
++      up_read(&nilfs->ns_sem);
+ 
+-      return snprintf(buf, PAGE_SIZE, "%llu\n", dev_size);
++      return sysfs_emit(buf, "%llu\n", dev_size);
+ }
+ 
+ static
+@@ -877,7 +888,7 @@ ssize_t nilfs_dev_free_blocks_show(struct nilfs_dev_attr 
*attr,
+       sector_t free_blocks = 0;
+ 
+       nilfs_count_free_blocks(nilfs, &free_blocks);
+-      return snprintf(buf, PAGE_SIZE, "%llu\n",
++      return sysfs_emit(buf, "%llu\n",
+                       (unsigned long long)free_blocks);
+ }
+ 
+@@ -886,9 +897,15 @@ ssize_t nilfs_dev_uuid_show(struct nilfs_dev_attr *attr,
+                           struct the_nilfs *nilfs,
+                           char *buf)
+ {
+-      struct nilfs_super_block **sbp = nilfs->ns_sbp;
++      struct nilfs_super_block *raw_sb;
++      ssize_t len;
+ 
+-      return snprintf(buf, PAGE_SIZE, "%pUb\n", sbp[0]->s_uuid);
++      down_read(&nilfs->ns_sem);
++      raw_sb = nilfs->ns_sbp[0];
++      len = sysfs_emit(buf, "%pUb\n", raw_sb->s_uuid);
++      up_read(&nilfs->ns_sem);
++
++      return len;
+ }
+ 
+ static
+@@ -896,10 +913,16 @@ ssize_t nilfs_dev_volume_name_show(struct nilfs_dev_attr 
*attr,
+                                   struct the_nilfs *nilfs,
+                                   char *buf)
+ {
+-      struct nilfs_super_block **sbp = nilfs->ns_sbp;
++      struct nilfs_super_block *raw_sb;
++      ssize_t len;
++
++      down_read(&nilfs->ns_sem);
++      raw_sb = nilfs->ns_sbp[0];
++      len = scnprintf(buf, sizeof(raw_sb->s_volume_name), "%s\n",
++                      raw_sb->s_volume_name);
++      up_read(&nilfs->ns_sem);
+ 
+-      return scnprintf(buf, sizeof(sbp[0]->s_volume_name), "%s\n",
+-                       sbp[0]->s_volume_name);
++      return len;
+ }
+ 
+ static const char dev_readme_str[] =
+@@ -916,7 +939,7 @@ static ssize_t nilfs_dev_README_show(struct nilfs_dev_attr 
*attr,
+                                    struct the_nilfs *nilfs,
+                                    char *buf)
+ {
+-      return snprintf(buf, PAGE_SIZE, dev_readme_str);
++      return sysfs_emit(buf, dev_readme_str);
+ }
+ 
+ NILFS_DEV_RO_ATTR(revision);
+@@ -1060,7 +1083,7 @@ void nilfs_sysfs_delete_device_group(struct the_nilfs 
*nilfs)
+ static ssize_t nilfs_feature_revision_show(struct kobject *kobj,
+                                           struct attribute *attr, char *buf)
+ {
+-      return snprintf(buf, PAGE_SIZE, "%d.%d\n",
++      return sysfs_emit(buf, "%d.%d\n",
+                       NILFS_CURRENT_REV, NILFS_MINOR_REV);
+ }
+ 
+@@ -1073,7 +1096,7 @@ static ssize_t nilfs_feature_README_show(struct kobject 
*kobj,
+                                        struct attribute *attr,
+                                        char *buf)
+ {
+-      return snprintf(buf, PAGE_SIZE, features_readme_str);
++      return sysfs_emit(buf, features_readme_str);
+ }
+ 
+ NILFS_FEATURE_RO_ATTR(revision);
+diff --git a/fs/squashfs/inode.c b/fs/squashfs/inode.c
+index 24463145b3513..f31649080a881 100644
+--- a/fs/squashfs/inode.c
++++ b/fs/squashfs/inode.c
+@@ -276,8 +276,13 @@ int squashfs_read_inode(struct inode *inode, long long 
ino)
+               if (err < 0)
+                       goto failed_read;
+ 
+-              set_nlink(inode, le32_to_cpu(sqsh_ino->nlink));
+               inode->i_size = le32_to_cpu(sqsh_ino->symlink_size);
++              if (inode->i_size > PAGE_SIZE) {
++                      ERROR("Corrupted symlink\n");
++                      return -EINVAL;
++              }
++
++              set_nlink(inode, le32_to_cpu(sqsh_ino->nlink));
+               inode->i_op = &squashfs_symlink_inode_ops;
+               inode_nohighmem(inode);
+               inode->i_data.a_ops = &squashfs_symlink_aops;
+diff --git a/fs/udf/super.c b/fs/udf/super.c
+index 46384284e7e06..a1962c93bd262 100644
+--- a/fs/udf/super.c
++++ b/fs/udf/super.c
+@@ -86,6 +86,13 @@ enum {
+ #define UDF_MAX_LVID_NESTING 1000
+ 
+ enum { UDF_MAX_LINKS = 0xffff };
++/*
++ * We limit filesize to 4TB. This is arbitrary as the on-disk format supports
++ * more but because the file space is described by a linked list of extents,
++ * each of which can have at most 1GB, the creation and handling of extents
++ * gets unusably slow beyond certain point...
++ */
++#define UDF_MAX_FILESIZE (1ULL << 42)
+ 
+ /* These are the "meat" - everything else is stuffing */
+ static int udf_fill_super(struct super_block *, void *, int);
+@@ -1083,12 +1090,19 @@ static int udf_fill_partdesc_info(struct super_block 
*sb,
+       struct udf_part_map *map;
+       struct udf_sb_info *sbi = UDF_SB(sb);
+       struct partitionHeaderDesc *phd;
++      u32 sum;
+       int err;
+ 
+       map = &sbi->s_partmaps[p_index];
+ 
+       map->s_partition_len = le32_to_cpu(p->partitionLength); /* blocks */
+       map->s_partition_root = le32_to_cpu(p->partitionStartingLocation);
++      if (check_add_overflow(map->s_partition_root, map->s_partition_len,
++                             &sum)) {
++              udf_err(sb, "Partition %d has invalid location %u + %u\n",
++                      p_index, map->s_partition_root, map->s_partition_len);
++              return -EFSCORRUPTED;
++      }
+ 
+       if (p->accessType == cpu_to_le32(PD_ACCESS_TYPE_READ_ONLY))
+               map->s_partition_flags |= UDF_PART_FLAG_READ_ONLY;
+@@ -1144,6 +1158,14 @@ static int udf_fill_partdesc_info(struct super_block 
*sb,
+               bitmap->s_extPosition = le32_to_cpu(
+                               phd->unallocSpaceBitmap.extPosition);
+               map->s_partition_flags |= UDF_PART_FLAG_UNALLOC_BITMAP;
++              /* Check whether math over bitmap won't overflow. */
++              if (check_add_overflow(map->s_partition_len,
++                                     sizeof(struct spaceBitmapDesc) << 3,
++                                     &sum)) {
++                      udf_err(sb, "Partition %d is too long (%u)\n", p_index,
++                              map->s_partition_len);
++                      return -EFSCORRUPTED;
++              }
+               udf_debug("unallocSpaceBitmap (part %d) @ %u\n",
+                         p_index, bitmap->s_extPosition);
+       }
+@@ -2308,7 +2330,7 @@ static int udf_fill_super(struct super_block *sb, void 
*options, int silent)
+               ret = -ENOMEM;
+               goto error_out;
+       }
+-      sb->s_maxbytes = MAX_LFS_FILESIZE;
++      sb->s_maxbytes = UDF_MAX_FILESIZE;
+       sb->s_max_links = UDF_MAX_LINKS;
+       return 0;
+ 
+diff --git a/include/linux/i2c.h b/include/linux/i2c.h
+index af2b799d7a665..e622d09d9eb80 100644
+--- a/include/linux/i2c.h
++++ b/include/linux/i2c.h
+@@ -979,7 +979,7 @@ static inline int of_i2c_get_board_info(struct device *dev,
+ struct acpi_resource;
+ struct acpi_resource_i2c_serialbus;
+ 
+-#if IS_ENABLED(CONFIG_ACPI)
++#if IS_REACHABLE(CONFIG_ACPI) && IS_REACHABLE(CONFIG_I2C)
+ bool i2c_acpi_get_i2c_resource(struct acpi_resource *ares,
+                              struct acpi_resource_i2c_serialbus **i2c);
+ u32 i2c_acpi_find_bus_speed(struct device *dev);
+diff --git a/include/linux/ring_buffer.h b/include/linux/ring_buffer.h
+index b739507722998..12492c8a22b39 100644
+--- a/include/linux/ring_buffer.h
++++ b/include/linux/ring_buffer.h
+@@ -135,8 +135,7 @@ void ring_buffer_read_finish(struct ring_buffer_iter 
*iter);
+ 
+ struct ring_buffer_event *
+ ring_buffer_iter_peek(struct ring_buffer_iter *iter, u64 *ts);
+-struct ring_buffer_event *
+-ring_buffer_read(struct ring_buffer_iter *iter, u64 *ts);
++void ring_buffer_iter_advance(struct ring_buffer_iter *iter);
+ void ring_buffer_iter_reset(struct ring_buffer_iter *iter);
+ int ring_buffer_iter_empty(struct ring_buffer_iter *iter);
+ 
+diff --git a/kernel/cgroup/cgroup.c b/kernel/cgroup/cgroup.c
+index 62a7a50750149..16ae868941211 100644
+--- a/kernel/cgroup/cgroup.c
++++ b/kernel/cgroup/cgroup.c
+@@ -1783,9 +1783,9 @@ int rebind_subsystems(struct cgroup_root *dst_root, u16 
ss_mask)
+               RCU_INIT_POINTER(scgrp->subsys[ssid], NULL);
+               rcu_assign_pointer(dcgrp->subsys[ssid], css);
+               ss->root = dst_root;
+-              css->cgroup = dcgrp;
+ 
+               spin_lock_irq(&css_set_lock);
++              css->cgroup = dcgrp;
+               WARN_ON(!list_empty(&dcgrp->e_csets[ss->id]));
+               list_for_each_entry_safe(cset, cset_pos, 
&scgrp->e_csets[ss->id],
+                                        e_cset_node[ss->id]) {
+diff --git a/kernel/events/uprobes.c b/kernel/events/uprobes.c
+index 1799427a384ae..c812575f04619 100644
+--- a/kernel/events/uprobes.c
++++ b/kernel/events/uprobes.c
+@@ -1491,7 +1491,7 @@ static struct xol_area *__create_xol_area(unsigned long 
vaddr)
+       uprobe_opcode_t insn = UPROBE_SWBP_INSN;
+       struct xol_area *area;
+ 
+-      area = kmalloc(sizeof(*area), GFP_KERNEL);
++      area = kzalloc(sizeof(*area), GFP_KERNEL);
+       if (unlikely(!area))
+               goto out;
+ 
+@@ -1501,7 +1501,6 @@ static struct xol_area *__create_xol_area(unsigned long 
vaddr)
+               goto free_area;
+ 
+       area->xol_mapping.name = "[uprobes]";
+-      area->xol_mapping.fault = NULL;
+       area->xol_mapping.pages = area->pages;
+       area->pages[0] = alloc_page(GFP_HIGHUSER);
+       if (!area->pages[0])
+diff --git a/kernel/locking/rtmutex.c b/kernel/locking/rtmutex.c
+index 734698aec5f9e..7c727c4944e62 100644
+--- a/kernel/locking/rtmutex.c
++++ b/kernel/locking/rtmutex.c
+@@ -1204,6 +1204,7 @@ __rt_mutex_slowlock(struct rt_mutex *lock, int state,
+ }
+ 
+ static void rt_mutex_handle_deadlock(int res, int detect_deadlock,
++                                   struct rt_mutex *lock,
+                                    struct rt_mutex_waiter *w)
+ {
+       /*
+@@ -1213,6 +1214,7 @@ static void rt_mutex_handle_deadlock(int res, int 
detect_deadlock,
+       if (res != -EDEADLOCK || detect_deadlock)
+               return;
+ 
++      raw_spin_unlock_irq(&lock->wait_lock);
+       /*
+        * Yell lowdly and stop the task right here.
+        */
+@@ -1268,7 +1270,7 @@ rt_mutex_slowlock(struct rt_mutex *lock, int state,
+       if (unlikely(ret)) {
+               __set_current_state(TASK_RUNNING);
+               remove_waiter(lock, &waiter);
+-              rt_mutex_handle_deadlock(ret, chwalk, &waiter);
++              rt_mutex_handle_deadlock(ret, chwalk, lock, &waiter);
+       }
+ 
+       /*
+diff --git a/kernel/smp.c b/kernel/smp.c
+index be65b76cb8036..76de88dc16996 100644
+--- a/kernel/smp.c
++++ b/kernel/smp.c
+@@ -813,6 +813,7 @@ int smp_call_on_cpu(unsigned int cpu, int (*func)(void *), 
void *par, bool phys)
+ 
+       queue_work_on(cpu, system_wq, &sscs.work);
+       wait_for_completion(&sscs.done);
++      destroy_work_on_stack(&sscs.work);
+ 
+       return sscs.ret;
+ }
+diff --git a/kernel/trace/ring_buffer.c b/kernel/trace/ring_buffer.c
+index ad97515cd5a16..2011219c11a91 100644
+--- a/kernel/trace/ring_buffer.c
++++ b/kernel/trace/ring_buffer.c
+@@ -4495,35 +4495,24 @@ ring_buffer_read_finish(struct ring_buffer_iter *iter)
+ EXPORT_SYMBOL_GPL(ring_buffer_read_finish);
+ 
+ /**
+- * ring_buffer_read - read the next item in the ring buffer by the iterator
++ * ring_buffer_iter_advance - advance the iterator to the next location
+  * @iter: The ring buffer iterator
+- * @ts: The time stamp of the event read.
+  *
+- * This reads the next event in the ring buffer and increments the iterator.
++ * Move the location of the iterator such that the next read will
++ * be the next location of the iterator.
+  */
+-struct ring_buffer_event *
+-ring_buffer_read(struct ring_buffer_iter *iter, u64 *ts)
++void ring_buffer_iter_advance(struct ring_buffer_iter *iter)
+ {
+-      struct ring_buffer_event *event;
+       struct ring_buffer_per_cpu *cpu_buffer = iter->cpu_buffer;
+       unsigned long flags;
+ 
+       raw_spin_lock_irqsave(&cpu_buffer->reader_lock, flags);
+- again:
+-      event = rb_iter_peek(iter, ts);
+-      if (!event)
+-              goto out;
+-
+-      if (event->type_len == RINGBUF_TYPE_PADDING)
+-              goto again;
+ 
+       rb_advance_iter(iter);
+- out:
+-      raw_spin_unlock_irqrestore(&cpu_buffer->reader_lock, flags);
+ 
+-      return event;
++      raw_spin_unlock_irqrestore(&cpu_buffer->reader_lock, flags);
+ }
+-EXPORT_SYMBOL_GPL(ring_buffer_read);
++EXPORT_SYMBOL_GPL(ring_buffer_iter_advance);
+ 
+ /**
+  * ring_buffer_size - return the size of the ring buffer (in bytes)
+diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
+index 6fd7dca57dd91..67466563d86f1 100644
+--- a/kernel/trace/trace.c
++++ b/kernel/trace/trace.c
+@@ -3326,7 +3326,7 @@ static void trace_iterator_increment(struct 
trace_iterator *iter)
+ 
+       iter->idx++;
+       if (buf_iter)
+-              ring_buffer_read(buf_iter, NULL);
++              ring_buffer_iter_advance(buf_iter);
+ }
+ 
+ static struct trace_entry *
+@@ -3486,7 +3486,9 @@ void tracing_iter_reset(struct trace_iterator *iter, int 
cpu)
+               if (ts >= iter->trace_buffer->time_start)
+                       break;
+               entries++;
+-              ring_buffer_read(buf_iter, NULL);
++              ring_buffer_iter_advance(buf_iter);
++              /* This could be a big loop */
++              cond_resched();
+       }
+ 
+       per_cpu_ptr(iter->trace_buffer->data, cpu)->skipped_entries = entries;
+diff --git a/kernel/trace/trace_functions_graph.c 
b/kernel/trace/trace_functions_graph.c
+index 78af97163147b..f577c11720a42 100644
+--- a/kernel/trace/trace_functions_graph.c
++++ b/kernel/trace/trace_functions_graph.c
+@@ -482,7 +482,7 @@ get_return_for_leaf(struct trace_iterator *iter,
+ 
+       /* this is a leaf, now advance the iterator */
+       if (ring_iter)
+-              ring_buffer_read(ring_iter, NULL);
++              ring_buffer_iter_advance(ring_iter);
+ 
+       return next;
+ }
+diff --git a/lib/generic-radix-tree.c b/lib/generic-radix-tree.c
+index f25eb111c0516..34d3ac52de894 100644
+--- a/lib/generic-radix-tree.c
++++ b/lib/generic-radix-tree.c
+@@ -131,6 +131,8 @@ void *__genradix_ptr_alloc(struct __genradix *radix, 
size_t offset,
+               if ((v = cmpxchg_release(&radix->root, r, new_root)) == r) {
+                       v = new_root;
+                       new_node = NULL;
++              } else {
++                      new_node->children[0] = NULL;
+               }
+       }
+ 
+diff --git a/net/bridge/br_fdb.c b/net/bridge/br_fdb.c
+index b1d3248c02521..89e0a6808d301 100644
+--- a/net/bridge/br_fdb.c
++++ b/net/bridge/br_fdb.c
+@@ -75,8 +75,9 @@ static inline unsigned long hold_time(const struct 
net_bridge *br)
+ static inline int has_expired(const struct net_bridge *br,
+                                 const struct net_bridge_fdb_entry *fdb)
+ {
+-      return !fdb->is_static && !fdb->added_by_external_learn &&
+-              time_before_eq(fdb->updated + hold_time(br), jiffies);
++      return !test_bit(BR_FDB_STATIC, &fdb->flags) &&
++             !test_bit(BR_FDB_ADDED_BY_EXT_LEARN, &fdb->flags) &&
++             time_before_eq(fdb->updated + hold_time(br), jiffies);
+ }
+ 
+ static void fdb_rcu_free(struct rcu_head *head)
+@@ -197,7 +198,7 @@ static void fdb_delete(struct net_bridge *br, struct 
net_bridge_fdb_entry *f,
+ {
+       trace_fdb_delete(br, f);
+ 
+-      if (f->is_static)
++      if (test_bit(BR_FDB_STATIC, &f->flags))
+               fdb_del_hw_addr(br, f->key.addr.addr);
+ 
+       hlist_del_init_rcu(&f->fdb_node);
+@@ -224,7 +225,7 @@ static void fdb_delete_local(struct net_bridge *br,
+               if (op != p && ether_addr_equal(op->dev->dev_addr, addr) &&
+                   (!vid || br_vlan_find(vg, vid))) {
+                       f->dst = op;
+-                      f->added_by_user = 0;
++                      clear_bit(BR_FDB_ADDED_BY_USER, &f->flags);
+                       return;
+               }
+       }
+@@ -235,7 +236,7 @@ static void fdb_delete_local(struct net_bridge *br,
+       if (p && ether_addr_equal(br->dev->dev_addr, addr) &&
+           (!vid || (v && br_vlan_should_use(v)))) {
+               f->dst = NULL;
+-              f->added_by_user = 0;
++              clear_bit(BR_FDB_ADDED_BY_USER, &f->flags);
+               return;
+       }
+ 
+@@ -250,7 +251,8 @@ void br_fdb_find_delete_local(struct net_bridge *br,
+ 
+       spin_lock_bh(&br->hash_lock);
+       f = br_fdb_find(br, addr, vid);
+-      if (f && f->is_local && !f->added_by_user && f->dst == p)
++      if (f && test_bit(BR_FDB_LOCAL, &f->flags) &&
++          !test_bit(BR_FDB_ADDED_BY_USER, &f->flags) && f->dst == p)
+               fdb_delete_local(br, p, f);
+       spin_unlock_bh(&br->hash_lock);
+ }
+@@ -265,7 +267,8 @@ void br_fdb_changeaddr(struct net_bridge_port *p, const 
unsigned char *newaddr)
+       spin_lock_bh(&br->hash_lock);
+       vg = nbp_vlan_group(p);
+       hlist_for_each_entry(f, &br->fdb_list, fdb_node) {
+-              if (f->dst == p && f->is_local && !f->added_by_user) {
++              if (f->dst == p && test_bit(BR_FDB_LOCAL, &f->flags) &&
++                  !test_bit(BR_FDB_ADDED_BY_USER, &f->flags)) {
+                       /* delete old one */
+                       fdb_delete_local(br, p, f);
+ 
+@@ -306,7 +309,8 @@ void br_fdb_change_mac_address(struct net_bridge *br, 
const u8 *newaddr)
+ 
+       /* If old entry was unassociated with any port, then delete it. */
+       f = br_fdb_find(br, br->dev->dev_addr, 0);
+-      if (f && f->is_local && !f->dst && !f->added_by_user)
++      if (f && test_bit(BR_FDB_LOCAL, &f->flags) &&
++          !f->dst && !test_bit(BR_FDB_ADDED_BY_USER, &f->flags))
+               fdb_delete_local(br, NULL, f);
+ 
+       fdb_insert(br, NULL, newaddr, 0);
+@@ -321,7 +325,8 @@ void br_fdb_change_mac_address(struct net_bridge *br, 
const u8 *newaddr)
+               if (!br_vlan_should_use(v))
+                       continue;
+               f = br_fdb_find(br, br->dev->dev_addr, v->vid);
+-              if (f && f->is_local && !f->dst && !f->added_by_user)
++              if (f && test_bit(BR_FDB_LOCAL, &f->flags) &&
++                  !f->dst && !test_bit(BR_FDB_ADDED_BY_USER, &f->flags))
+                       fdb_delete_local(br, NULL, f);
+               fdb_insert(br, NULL, newaddr, v->vid);
+       }
+@@ -346,7 +351,8 @@ void br_fdb_cleanup(struct work_struct *work)
+       hlist_for_each_entry_rcu(f, &br->fdb_list, fdb_node) {
+               unsigned long this_timer;
+ 
+-              if (f->is_static || f->added_by_external_learn)
++              if (test_bit(BR_FDB_STATIC, &f->flags) ||
++                  test_bit(BR_FDB_ADDED_BY_EXT_LEARN, &f->flags))
+                       continue;
+               this_timer = f->updated + delay;
+               if (time_after(this_timer, now)) {
+@@ -373,7 +379,7 @@ void br_fdb_flush(struct net_bridge *br)
+ 
+       spin_lock_bh(&br->hash_lock);
+       hlist_for_each_entry_safe(f, tmp, &br->fdb_list, fdb_node) {
+-              if (!f->is_static)
++              if (!test_bit(BR_FDB_STATIC, &f->flags))
+                       fdb_delete(br, f, true);
+       }
+       spin_unlock_bh(&br->hash_lock);
+@@ -397,10 +403,11 @@ void br_fdb_delete_by_port(struct net_bridge *br,
+                       continue;
+ 
+               if (!do_all)
+-                      if (f->is_static || (vid && f->key.vlan_id != vid))
++                      if (test_bit(BR_FDB_STATIC, &f->flags) ||
++                          (vid && f->key.vlan_id != vid))
+                               continue;
+ 
+-              if (f->is_local)
++              if (test_bit(BR_FDB_LOCAL, &f->flags))
+                       fdb_delete_local(br, p, f);
+               else
+                       fdb_delete(br, f, true);
+@@ -469,8 +476,8 @@ int br_fdb_fillbuf(struct net_bridge *br, void *buf,
+               fe->port_no = f->dst->port_no;
+               fe->port_hi = f->dst->port_no >> 8;
+ 
+-              fe->is_local = f->is_local;
+-              if (!f->is_static)
++              fe->is_local = test_bit(BR_FDB_LOCAL, &f->flags);
++              if (!test_bit(BR_FDB_STATIC, &f->flags))
+                       fe->ageing_timer_value = 
jiffies_delta_to_clock_t(jiffies - f->updated);
+               ++fe;
+               ++num;
+@@ -494,12 +501,12 @@ static struct net_bridge_fdb_entry *fdb_create(struct 
net_bridge *br,
+               memcpy(fdb->key.addr.addr, addr, ETH_ALEN);
+               fdb->dst = source;
+               fdb->key.vlan_id = vid;
+-              fdb->is_local = is_local;
+-              fdb->is_static = is_static;
+-              fdb->added_by_user = 0;
+-              fdb->added_by_external_learn = 0;
++              fdb->flags = 0;
++              if (is_local)
++                      set_bit(BR_FDB_LOCAL, &fdb->flags);
++              if (is_static)
++                      set_bit(BR_FDB_STATIC, &fdb->flags);
+               fdb->offloaded = 0;
+-              fdb->is_sticky = 0;
+               fdb->updated = fdb->used = jiffies;
+               if (rhashtable_lookup_insert_fast(&br->fdb_hash_tbl,
+                                                 &fdb->rhnode,
+@@ -526,7 +533,7 @@ static int fdb_insert(struct net_bridge *br, struct 
net_bridge_port *source,
+               /* it is okay to have multiple ports with same
+                * address, just use the first one.
+                */
+-              if (fdb->is_local)
++              if (test_bit(BR_FDB_LOCAL, &fdb->flags))
+                       return 0;
+               br_warn(br, "adding interface %s with same address as a 
received packet (addr:%pM, vlan:%u)\n",
+                      source ? source->dev->name : br->dev->name, addr, vid);
+@@ -572,7 +579,7 @@ void br_fdb_update(struct net_bridge *br, struct 
net_bridge_port *source,
+       fdb = fdb_find_rcu(&br->fdb_hash_tbl, addr, vid);
+       if (likely(fdb)) {
+               /* attempt to update an entry for a local interface */
+-              if (unlikely(fdb->is_local)) {
++              if (unlikely(test_bit(BR_FDB_LOCAL, &fdb->flags))) {
+                       if (net_ratelimit())
+                               br_warn(br, "received packet on %s with own 
address as source address (addr:%pM, vlan:%u)\n",
+                                       source->dev->name, addr, vid);
+@@ -580,17 +587,18 @@ void br_fdb_update(struct net_bridge *br, struct 
net_bridge_port *source,
+                       unsigned long now = jiffies;
+ 
+                       /* fastpath: update of existing entry */
+-                      if (unlikely(source != fdb->dst && !fdb->is_sticky)) {
++                      if (unlikely(source != fdb->dst &&
++                                   !test_bit(BR_FDB_STICKY, &fdb->flags))) {
+                               fdb->dst = source;
+                               fdb_modified = true;
+                               /* Take over HW learned entry */
+-                              if (unlikely(fdb->added_by_external_learn))
+-                                      fdb->added_by_external_learn = 0;
++                              test_and_clear_bit(BR_FDB_ADDED_BY_EXT_LEARN,
++                                                 &fdb->flags);
+                       }
+                       if (now != fdb->updated)
+                               fdb->updated = now;
+                       if (unlikely(added_by_user))
+-                              fdb->added_by_user = 1;
++                              set_bit(BR_FDB_ADDED_BY_USER, &fdb->flags);
+                       if (unlikely(fdb_modified)) {
+                               trace_br_fdb_update(br, source, addr, vid, 
added_by_user);
+                               fdb_notify(br, fdb, RTM_NEWNEIGH, true);
+@@ -601,7 +609,7 @@ void br_fdb_update(struct net_bridge *br, struct 
net_bridge_port *source,
+               fdb = fdb_create(br, source, addr, vid, 0, 0);
+               if (fdb) {
+                       if (unlikely(added_by_user))
+-                              fdb->added_by_user = 1;
++                              set_bit(BR_FDB_ADDED_BY_USER, &fdb->flags);
+                       trace_br_fdb_update(br, source, addr, vid,
+                                           added_by_user);
+                       fdb_notify(br, fdb, RTM_NEWNEIGH, true);
+@@ -616,9 +624,9 @@ void br_fdb_update(struct net_bridge *br, struct 
net_bridge_port *source,
+ static int fdb_to_nud(const struct net_bridge *br,
+                     const struct net_bridge_fdb_entry *fdb)
+ {
+-      if (fdb->is_local)
++      if (test_bit(BR_FDB_LOCAL, &fdb->flags))
+               return NUD_PERMANENT;
+-      else if (fdb->is_static)
++      else if (test_bit(BR_FDB_STATIC, &fdb->flags))
+               return NUD_NOARP;
+       else if (has_expired(br, fdb))
+               return NUD_STALE;
+@@ -650,9 +658,9 @@ static int fdb_fill_info(struct sk_buff *skb, const struct 
net_bridge *br,
+ 
+       if (fdb->offloaded)
+               ndm->ndm_flags |= NTF_OFFLOADED;
+-      if (fdb->added_by_external_learn)
++      if (test_bit(BR_FDB_ADDED_BY_EXT_LEARN, &fdb->flags))
+               ndm->ndm_flags |= NTF_EXT_LEARNED;
+-      if (fdb->is_sticky)
++      if (test_bit(BR_FDB_STICKY, &fdb->flags))
+               ndm->ndm_flags |= NTF_STICKY;
+ 
+       if (nla_put(skb, NDA_LLADDR, ETH_ALEN, &fdb->key.addr))
+@@ -799,7 +807,7 @@ static int fdb_add_entry(struct net_bridge *br, struct 
net_bridge_port *source,
+                        const u8 *addr, u16 state, u16 flags, u16 vid,
+                        u8 ndm_flags)
+ {
+-      u8 is_sticky = !!(ndm_flags & NTF_STICKY);
++      bool is_sticky = !!(ndm_flags & NTF_STICKY);
+       struct net_bridge_fdb_entry *fdb;
+       bool modified = false;
+ 
+@@ -840,34 +848,28 @@ static int fdb_add_entry(struct net_bridge *br, struct 
net_bridge_port *source,
+ 
+       if (fdb_to_nud(br, fdb) != state) {
+               if (state & NUD_PERMANENT) {
+-                      fdb->is_local = 1;
+-                      if (!fdb->is_static) {
+-                              fdb->is_static = 1;
++                      set_bit(BR_FDB_LOCAL, &fdb->flags);
++                      if (!test_and_set_bit(BR_FDB_STATIC, &fdb->flags))
+                               fdb_add_hw_addr(br, addr);
+-                      }
+               } else if (state & NUD_NOARP) {
+-                      fdb->is_local = 0;
+-                      if (!fdb->is_static) {
+-                              fdb->is_static = 1;
++                      clear_bit(BR_FDB_LOCAL, &fdb->flags);
++                      if (!test_and_set_bit(BR_FDB_STATIC, &fdb->flags))
+                               fdb_add_hw_addr(br, addr);
+-                      }
+               } else {
+-                      fdb->is_local = 0;
+-                      if (fdb->is_static) {
+-                              fdb->is_static = 0;
++                      clear_bit(BR_FDB_LOCAL, &fdb->flags);
++                      if (test_and_clear_bit(BR_FDB_STATIC, &fdb->flags))
+                               fdb_del_hw_addr(br, addr);
+-                      }
+               }
+ 
+               modified = true;
+       }
+ 
+-      if (is_sticky != fdb->is_sticky) {
+-              fdb->is_sticky = is_sticky;
++      if (is_sticky != test_bit(BR_FDB_STICKY, &fdb->flags)) {
++              change_bit(BR_FDB_STICKY, &fdb->flags);
+               modified = true;
+       }
+ 
+-      fdb->added_by_user = 1;
++      set_bit(BR_FDB_ADDED_BY_USER, &fdb->flags);
+ 
+       fdb->used = jiffies;
+       if (modified) {
+@@ -1064,7 +1066,7 @@ int br_fdb_sync_static(struct net_bridge *br, struct 
net_bridge_port *p)
+       rcu_read_lock();
+       hlist_for_each_entry_rcu(f, &br->fdb_list, fdb_node) {
+               /* We only care for static entries */
+-              if (!f->is_static)
++              if (!test_bit(BR_FDB_STATIC, &f->flags))
+                       continue;
+               err = dev_uc_add(p->dev, f->key.addr.addr);
+               if (err)
+@@ -1078,7 +1080,7 @@ int br_fdb_sync_static(struct net_bridge *br, struct 
net_bridge_port *p)
+ rollback:
+       hlist_for_each_entry_rcu(tmp, &br->fdb_list, fdb_node) {
+               /* We only care for static entries */
+-              if (!tmp->is_static)
++              if (!test_bit(BR_FDB_STATIC, &tmp->flags))
+                       continue;
+               if (tmp == f)
+                       break;
+@@ -1097,7 +1099,7 @@ void br_fdb_unsync_static(struct net_bridge *br, struct 
net_bridge_port *p)
+       rcu_read_lock();
+       hlist_for_each_entry_rcu(f, &br->fdb_list, fdb_node) {
+               /* We only care for static entries */
+-              if (!f->is_static)
++              if (!test_bit(BR_FDB_STATIC, &f->flags))
+                       continue;
+ 
+               dev_uc_del(p->dev, f->key.addr.addr);
+@@ -1125,8 +1127,8 @@ int br_fdb_external_learn_add(struct net_bridge *br, 
struct net_bridge_port *p,
+                       goto err_unlock;
+               }
+               if (swdev_notify)
+-                      fdb->added_by_user = 1;
+-              fdb->added_by_external_learn = 1;
++                      set_bit(BR_FDB_ADDED_BY_USER, &fdb->flags);
++              set_bit(BR_FDB_ADDED_BY_EXT_LEARN, &fdb->flags);
+               fdb_notify(br, fdb, RTM_NEWNEIGH, swdev_notify);
+       } else {
+               fdb->updated = jiffies;
+@@ -1136,17 +1138,15 @@ int br_fdb_external_learn_add(struct net_bridge *br, 
struct net_bridge_port *p,
+                       modified = true;
+               }
+ 
+-              if (fdb->added_by_external_learn) {
++              if (test_and_set_bit(BR_FDB_ADDED_BY_EXT_LEARN, &fdb->flags)) {
+                       /* Refresh entry */
+                       fdb->used = jiffies;
+-              } else if (!fdb->added_by_user) {
+-                      /* Take over SW learned entry */
+-                      fdb->added_by_external_learn = 1;
++              } else {
+                       modified = true;
+               }
+ 
+               if (swdev_notify)
+-                      fdb->added_by_user = 1;
++                      set_bit(BR_FDB_ADDED_BY_USER, &fdb->flags);
+ 
+               if (modified)
+                       fdb_notify(br, fdb, RTM_NEWNEIGH, swdev_notify);
+@@ -1168,7 +1168,7 @@ int br_fdb_external_learn_del(struct net_bridge *br, 
struct net_bridge_port *p,
+       spin_lock_bh(&br->hash_lock);
+ 
+       fdb = br_fdb_find(br, addr, vid);
+-      if (fdb && fdb->added_by_external_learn)
++      if (fdb && test_bit(BR_FDB_ADDED_BY_EXT_LEARN, &fdb->flags))
+               fdb_delete(br, fdb, swdev_notify);
+       else
+               err = -ENOENT;
+diff --git a/net/bridge/br_input.c b/net/bridge/br_input.c
+index 3d07dedd93bd0..22271b279063d 100644
+--- a/net/bridge/br_input.c
++++ b/net/bridge/br_input.c
+@@ -158,7 +158,7 @@ int br_handle_frame_finish(struct net *net, struct sock 
*sk, struct sk_buff *skb
+       if (dst) {
+               unsigned long now = jiffies;
+ 
+-              if (dst->is_local)
++              if (test_bit(BR_FDB_LOCAL, &dst->flags))
+                       return br_pass_frame_up(skb);
+ 
+               if (now != dst->used)
+diff --git a/net/bridge/br_private.h b/net/bridge/br_private.h
+index c83d3a954b5f3..5ba4620727a7e 100644
+--- a/net/bridge/br_private.h
++++ b/net/bridge/br_private.h
+@@ -172,6 +172,15 @@ struct net_bridge_vlan_group {
+       u16                             pvid;
+ };
+ 
++/* bridge fdb flags */
++enum {
++      BR_FDB_LOCAL,
++      BR_FDB_STATIC,
++      BR_FDB_STICKY,
++      BR_FDB_ADDED_BY_USER,
++      BR_FDB_ADDED_BY_EXT_LEARN,
++};
++
+ struct net_bridge_fdb_key {
+       mac_addr addr;
+       u16 vlan_id;
+@@ -183,12 +192,8 @@ struct net_bridge_fdb_entry {
+ 
+       struct net_bridge_fdb_key       key;
+       struct hlist_node               fdb_node;
+-      unsigned char                   is_local:1,
+-                                      is_static:1,
+-                                      is_sticky:1,
+-                                      added_by_user:1,
+-                                      added_by_external_learn:1,
+-                                      offloaded:1;
++      unsigned long                   flags;
++      unsigned char                   offloaded:1;
+ 
+       /* write-heavy members should not affect lookups */
+       unsigned long                   updated ____cacheline_aligned_in_smp;
+diff --git a/net/bridge/br_switchdev.c b/net/bridge/br_switchdev.c
+index 921310d3cbae4..5010fbf747783 100644
+--- a/net/bridge/br_switchdev.c
++++ b/net/bridge/br_switchdev.c
+@@ -129,14 +129,16 @@ br_switchdev_fdb_notify(const struct 
net_bridge_fdb_entry *fdb, int type)
+               br_switchdev_fdb_call_notifiers(false, fdb->key.addr.addr,
+                                               fdb->key.vlan_id,
+                                               fdb->dst->dev,
+-                                              fdb->added_by_user,
++                                              test_bit(BR_FDB_ADDED_BY_USER,
++                                                       &fdb->flags),
+                                               fdb->offloaded);
+               break;
+       case RTM_NEWNEIGH:
+               br_switchdev_fdb_call_notifiers(true, fdb->key.addr.addr,
+                                               fdb->key.vlan_id,
+                                               fdb->dst->dev,
+-                                              fdb->added_by_user,
++                                              test_bit(BR_FDB_ADDED_BY_USER,
++                                                       &fdb->flags),
+                                               fdb->offloaded);
+               break;
+       }
+diff --git a/net/can/bcm.c b/net/can/bcm.c
+index 5cb4b6129263c..cc7fb30eafc0b 100644
+--- a/net/can/bcm.c
++++ b/net/can/bcm.c
+@@ -1425,6 +1425,10 @@ static void bcm_notify(struct bcm_sock *bo, unsigned 
long msg,
+ 
+               /* remove device reference, if this is our bound device */
+               if (bo->bound && bo->ifindex == dev->ifindex) {
++#if IS_ENABLED(CONFIG_PROC_FS)
++                      if (sock_net(sk)->can.bcmproc_dir && bo->bcm_proc_read)
++                              remove_proc_entry(bo->procname, 
sock_net(sk)->can.bcmproc_dir);
++#endif
+                       bo->bound   = 0;
+                       bo->ifindex = 0;
+                       notify_enodev = 1;
+diff --git a/net/ipv4/inet_hashtables.c b/net/ipv4/inet_hashtables.c
+index e4f2790fd6410..cd2cbf5c52a30 100644
+--- a/net/ipv4/inet_hashtables.c
++++ b/net/ipv4/inet_hashtables.c
+@@ -609,6 +609,7 @@ int __inet_hash(struct sock *sk, struct sock *osk)
+               if (err)
+                       goto unlock;
+       }
++      sock_set_flag(sk, SOCK_RCU_FREE);
+       if (IS_ENABLED(CONFIG_IPV6) && sk->sk_reuseport &&
+               sk->sk_family == AF_INET6)
+               __sk_nulls_add_node_tail_rcu(sk, &ilb->nulls_head);
+@@ -616,7 +617,6 @@ int __inet_hash(struct sock *sk, struct sock *osk)
+               __sk_nulls_add_node_rcu(sk, &ilb->nulls_head);
+       inet_hash2(hashinfo, sk);
+       ilb->count++;
+-      sock_set_flag(sk, SOCK_RCU_FREE);
+       sock_prot_inuse_add(sock_net(sk), sk->sk_prot, 1);
+ unlock:
+       spin_unlock(&ilb->lock);
+diff --git a/net/ipv4/tcp_bpf.c b/net/ipv4/tcp_bpf.c
+index ca49d68a0e048..0002a6730d2e9 100644
+--- a/net/ipv4/tcp_bpf.c
++++ b/net/ipv4/tcp_bpf.c
+@@ -506,7 +506,7 @@ static int tcp_bpf_sendmsg(struct sock *sk, struct msghdr 
*msg, size_t size)
+               err = sk_stream_error(sk, msg->msg_flags, err);
+       release_sock(sk);
+       sk_psock_put(sk, psock);
+-      return copied ? copied : err;
++      return copied > 0 ? copied : err;
+ }
+ 
+ static int tcp_bpf_sendpage(struct sock *sk, struct page *page, int offset,
+diff --git a/net/ipv6/ila/ila.h b/net/ipv6/ila/ila.h
+index bb6fc0d54dae0..5c41f007c2354 100644
+--- a/net/ipv6/ila/ila.h
++++ b/net/ipv6/ila/ila.h
+@@ -113,6 +113,7 @@ int ila_lwt_init(void);
+ void ila_lwt_fini(void);
+ 
+ int ila_xlat_init_net(struct net *net);
++void ila_xlat_pre_exit_net(struct net *net);
+ void ila_xlat_exit_net(struct net *net);
+ 
+ int ila_xlat_nl_cmd_add_mapping(struct sk_buff *skb, struct genl_info *info);
+diff --git a/net/ipv6/ila/ila_main.c b/net/ipv6/ila/ila_main.c
+index 257d2b681246a..8306f89d8e2a2 100644
+--- a/net/ipv6/ila/ila_main.c
++++ b/net/ipv6/ila/ila_main.c
+@@ -71,6 +71,11 @@ static __net_init int ila_init_net(struct net *net)
+       return err;
+ }
+ 
++static __net_exit void ila_pre_exit_net(struct net *net)
++{
++      ila_xlat_pre_exit_net(net);
++}
++
+ static __net_exit void ila_exit_net(struct net *net)
+ {
+       ila_xlat_exit_net(net);
+@@ -78,6 +83,7 @@ static __net_exit void ila_exit_net(struct net *net)
+ 
+ static struct pernet_operations ila_net_ops = {
+       .init = ila_init_net,
++      .pre_exit = ila_pre_exit_net,
+       .exit = ila_exit_net,
+       .id   = &ila_net_id,
+       .size = sizeof(struct ila_net),
+diff --git a/net/ipv6/ila/ila_xlat.c b/net/ipv6/ila/ila_xlat.c
+index 10f1367eb4ca0..1a0f580da6527 100644
+--- a/net/ipv6/ila/ila_xlat.c
++++ b/net/ipv6/ila/ila_xlat.c
+@@ -618,6 +618,15 @@ int ila_xlat_init_net(struct net *net)
+       return 0;
+ }
+ 
++void ila_xlat_pre_exit_net(struct net *net)
++{
++      struct ila_net *ilan = net_generic(net, ila_net_id);
++
++      if (ilan->xlat.hooks_registered)
++              nf_unregister_net_hooks(net, ila_nf_hook_ops,
++                                      ARRAY_SIZE(ila_nf_hook_ops));
++}
++
+ void ila_xlat_exit_net(struct net *net)
+ {
+       struct ila_net *ilan = net_generic(net, ila_net_id);
+@@ -625,10 +634,6 @@ void ila_xlat_exit_net(struct net *net)
+       rhashtable_free_and_destroy(&ilan->xlat.rhash_table, ila_free_cb, NULL);
+ 
+       free_bucket_spinlocks(ilan->xlat.locks);
+-
+-      if (ilan->xlat.hooks_registered)
+-              nf_unregister_net_hooks(net, ila_nf_hook_ops,
+-                                      ARRAY_SIZE(ila_nf_hook_ops));
+ }
+ 
+ static int ila_xlat_addr(struct sk_buff *skb, bool sir2ila)
+diff --git a/net/netfilter/nf_conncount.c b/net/netfilter/nf_conncount.c
+index 82f36beb2e766..0ce12a33ffda4 100644
+--- a/net/netfilter/nf_conncount.c
++++ b/net/netfilter/nf_conncount.c
+@@ -310,7 +310,6 @@ insert_tree(struct net *net,
+       struct nf_conncount_rb *rbconn;
+       struct nf_conncount_tuple *conn;
+       unsigned int count = 0, gc_count = 0;
+-      u8 keylen = data->keylen;
+       bool do_gc = true;
+ 
+       spin_lock_bh(&nf_conncount_locks[hash]);
+@@ -322,7 +321,7 @@ insert_tree(struct net *net,
+               rbconn = rb_entry(*rbnode, struct nf_conncount_rb, node);
+ 
+               parent = *rbnode;
+-              diff = key_diff(key, rbconn->key, keylen);
++              diff = key_diff(key, rbconn->key, data->keylen);
+               if (diff < 0) {
+                       rbnode = &((*rbnode)->rb_left);
+               } else if (diff > 0) {
+@@ -367,7 +366,7 @@ insert_tree(struct net *net,
+ 
+       conn->tuple = *tuple;
+       conn->zone = *zone;
+-      memcpy(rbconn->key, key, sizeof(u32) * keylen);
++      memcpy(rbconn->key, key, sizeof(u32) * data->keylen);
+ 
+       nf_conncount_list_init(&rbconn->list);
+       list_add(&conn->node, &rbconn->list.head);
+@@ -392,7 +391,6 @@ count_tree(struct net *net,
+       struct rb_node *parent;
+       struct nf_conncount_rb *rbconn;
+       unsigned int hash;
+-      u8 keylen = data->keylen;
+ 
+       hash = jhash2(key, data->keylen, conncount_rnd) % CONNCOUNT_SLOTS;
+       root = &data->root[hash];
+@@ -403,7 +401,7 @@ count_tree(struct net *net,
+ 
+               rbconn = rb_entry(parent, struct nf_conncount_rb, node);
+ 
+-              diff = key_diff(key, rbconn->key, keylen);
++              diff = key_diff(key, rbconn->key, data->keylen);
+               if (diff < 0) {
+                       parent = rcu_dereference_raw(parent->rb_left);
+               } else if (diff > 0) {
+diff --git a/net/sched/sch_cake.c b/net/sched/sch_cake.c
+index 7ee0b57b3ed4c..9b4a9bdbeafd9 100644
+--- a/net/sched/sch_cake.c
++++ b/net/sched/sch_cake.c
+@@ -749,12 +749,15 @@ static u32 cake_hash(struct cake_tin_data *q, const 
struct sk_buff *skb,
+                * queue, accept the collision, update the host tags.
+                */
+               q->way_collisions++;
+-              if (q->flows[outer_hash + k].set == CAKE_SET_BULK) {
+-                      
q->hosts[q->flows[reduced_hash].srchost].srchost_bulk_flow_count--;
+-                      
q->hosts[q->flows[reduced_hash].dsthost].dsthost_bulk_flow_count--;
+-              }
+               allocate_src = cake_dsrc(flow_mode);
+               allocate_dst = cake_ddst(flow_mode);
++
++              if (q->flows[outer_hash + k].set == CAKE_SET_BULK) {
++                      if (allocate_src)
++                              
q->hosts[q->flows[reduced_hash].srchost].srchost_bulk_flow_count--;
++                      if (allocate_dst)
++                              
q->hosts[q->flows[reduced_hash].dsthost].dsthost_bulk_flow_count--;
++              }
+ found:
+               /* reserve queue for future packets in same flow */
+               reduced_hash = outer_hash + k;
+diff --git a/net/sched/sch_netem.c b/net/sched/sch_netem.c
+index 591ca93e2a01d..9913bf87e5989 100644
+--- a/net/sched/sch_netem.c
++++ b/net/sched/sch_netem.c
+@@ -733,11 +733,10 @@ static struct sk_buff *netem_dequeue(struct Qdisc *sch)
+ 
+                               err = qdisc_enqueue(skb, q->qdisc, &to_free);
+                               kfree_skb_list(to_free);
+-                              if (err != NET_XMIT_SUCCESS &&
+-                                  net_xmit_drop_count(err)) {
+-                                      qdisc_qstats_drop(sch);
+-                                      qdisc_tree_reduce_backlog(sch, 1,
+-                                                                pkt_len);
++                              if (err != NET_XMIT_SUCCESS) {
++                                      if (net_xmit_drop_count(err))
++                                              qdisc_qstats_drop(sch);
++                                      qdisc_tree_reduce_backlog(sch, 1, 
pkt_len);
+                               }
+                               goto tfifo_dequeue;
+                       }
+diff --git a/net/sunrpc/xprtsock.c b/net/sunrpc/xprtsock.c
+index 39d0a3c434829..e88b9e53dcb65 100644
+--- a/net/sunrpc/xprtsock.c
++++ b/net/sunrpc/xprtsock.c
+@@ -2437,6 +2437,13 @@ static void xs_tcp_setup_socket(struct work_struct 
*work)
+       case -EALREADY:
+               xprt_unlock_connect(xprt, transport);
+               return;
++      case -EPERM:
++              /* Happens, for instance, if a BPF program is preventing
++               * the connect. Remap the error so upper layers can better
++               * deal with it.
++               */
++              status = -ECONNREFUSED;
++              fallthrough;
+       case -EINVAL:
+               /* Happens, for instance, if the user specified a link
+                * local IPv6 address without a scope-id.
+diff --git a/net/unix/af_unix.c b/net/unix/af_unix.c
+index ae6aae983b8cb..c47a734e1f2da 100644
+--- a/net/unix/af_unix.c
++++ b/net/unix/af_unix.c
+@@ -605,9 +605,6 @@ static void init_peercred(struct sock *sk)
+ 
+ static void copy_peercred(struct sock *sk, struct sock *peersk)
+ {
+-      const struct cred *old_cred;
+-      struct pid *old_pid;
+-
+       if (sk < peersk) {
+               spin_lock(&sk->sk_peer_lock);
+               spin_lock_nested(&peersk->sk_peer_lock, SINGLE_DEPTH_NESTING);
+@@ -615,16 +612,12 @@ static void copy_peercred(struct sock *sk, struct sock 
*peersk)
+               spin_lock(&peersk->sk_peer_lock);
+               spin_lock_nested(&sk->sk_peer_lock, SINGLE_DEPTH_NESTING);
+       }
+-      old_pid = sk->sk_peer_pid;
+-      old_cred = sk->sk_peer_cred;
++
+       sk->sk_peer_pid  = get_pid(peersk->sk_peer_pid);
+       sk->sk_peer_cred = get_cred(peersk->sk_peer_cred);
+ 
+       spin_unlock(&sk->sk_peer_lock);
+       spin_unlock(&peersk->sk_peer_lock);
+-
+-      put_pid(old_pid);
+-      put_cred(old_cred);
+ }
+ 
+ static int unix_listen(struct socket *sock, int backlog)
+diff --git a/net/wireless/scan.c b/net/wireless/scan.c
+index c74882e3c3096..b28e652514e80 100644
+--- a/net/wireless/scan.c
++++ b/net/wireless/scan.c
+@@ -1003,7 +1003,7 @@ struct cfg80211_bss *cfg80211_get_bss(struct wiphy 
*wiphy,
+ }
+ EXPORT_SYMBOL(cfg80211_get_bss);
+ 
+-static void rb_insert_bss(struct cfg80211_registered_device *rdev,
++static bool rb_insert_bss(struct cfg80211_registered_device *rdev,
+                         struct cfg80211_internal_bss *bss)
+ {
+       struct rb_node **p = &rdev->bss_tree.rb_node;
+@@ -1019,7 +1019,7 @@ static void rb_insert_bss(struct 
cfg80211_registered_device *rdev,
+ 
+               if (WARN_ON(!cmp)) {
+                       /* will sort of leak this BSS */
+-                      return;
++                      return false;
+               }
+ 
+               if (cmp < 0)
+@@ -1030,6 +1030,7 @@ static void rb_insert_bss(struct 
cfg80211_registered_device *rdev,
+ 
+       rb_link_node(&bss->rbn, parent, p);
+       rb_insert_color(&bss->rbn, &rdev->bss_tree);
++      return true;
+ }
+ 
+ static struct cfg80211_internal_bss *
+@@ -1056,6 +1057,34 @@ rb_find_bss(struct cfg80211_registered_device *rdev,
+       return NULL;
+ }
+ 
++static void cfg80211_insert_bss(struct cfg80211_registered_device *rdev,
++                              struct cfg80211_internal_bss *bss)
++{
++      lockdep_assert_held(&rdev->bss_lock);
++
++      if (!rb_insert_bss(rdev, bss))
++              return;
++      list_add_tail(&bss->list, &rdev->bss_list);
++      rdev->bss_entries++;
++}
++
++static void cfg80211_rehash_bss(struct cfg80211_registered_device *rdev,
++                                struct cfg80211_internal_bss *bss)
++{
++      lockdep_assert_held(&rdev->bss_lock);
++
++      rb_erase(&bss->rbn, &rdev->bss_tree);
++      if (!rb_insert_bss(rdev, bss)) {
++              list_del(&bss->list);
++              if (!list_empty(&bss->hidden_list))
++                      list_del_init(&bss->hidden_list);
++              if (!list_empty(&bss->pub.nontrans_list))
++                      list_del_init(&bss->pub.nontrans_list);
++              rdev->bss_entries--;
++      }
++      rdev->bss_generation++;
++}
++
+ static bool cfg80211_combine_bsses(struct cfg80211_registered_device *rdev,
+                                  struct cfg80211_internal_bss *new)
+ {
+@@ -1331,9 +1360,7 @@ cfg80211_bss_update(struct cfg80211_registered_device 
*rdev,
+                       bss_ref_get(rdev, pbss);
+               }
+ 
+-              list_add_tail(&new->list, &rdev->bss_list);
+-              rdev->bss_entries++;
+-              rb_insert_bss(rdev, new);
++              cfg80211_insert_bss(rdev, new);
+               found = new;
+       }
+ 
+@@ -2142,10 +2169,7 @@ void cfg80211_update_assoc_bss_entry(struct 
wireless_dev *wdev,
+               if (!WARN_ON(!__cfg80211_unlink_bss(rdev, new)))
+                       rdev->bss_generation++;
+       }
+-
+-      rb_erase(&cbss->rbn, &rdev->bss_tree);
+-      rb_insert_bss(rdev, cbss);
+-      rdev->bss_generation++;
++      cfg80211_rehash_bss(rdev, cbss);
+ 
+       list_for_each_entry_safe(nontrans_bss, tmp,
+                                &cbss->pub.nontrans_list,
+@@ -2153,9 +2177,7 @@ void cfg80211_update_assoc_bss_entry(struct wireless_dev 
*wdev,
+               bss = container_of(nontrans_bss,
+                                  struct cfg80211_internal_bss, pub);
+               bss->pub.channel = chan;
+-              rb_erase(&bss->rbn, &rdev->bss_tree);
+-              rb_insert_bss(rdev, bss);
+-              rdev->bss_generation++;
++              cfg80211_rehash_bss(rdev, bss);
+       }
+ 
+ done:
+diff --git a/security/apparmor/apparmorfs.c b/security/apparmor/apparmorfs.c
+index 62736465ac82a..efe04f54be9ed 100644
+--- a/security/apparmor/apparmorfs.c
++++ b/security/apparmor/apparmorfs.c
+@@ -1593,6 +1593,10 @@ int __aafs_profile_mkdir(struct aa_profile *profile, 
struct dentry *parent)
+               struct aa_profile *p;
+               p = aa_deref_parent(profile);
+               dent = prof_dir(p);
++              if (!dent) {
++                      error = -ENOENT;
++                      goto fail2;
++              }
+               /* adding to parent that previously didn't have children */
+               dent = aafs_create_dir("profiles", dent);
+               if (IS_ERR(dent))
+diff --git a/security/smack/smack_lsm.c b/security/smack/smack_lsm.c
+index 072ce1ef6efb7..a9582737c2301 100644
+--- a/security/smack/smack_lsm.c
++++ b/security/smack/smack_lsm.c
+@@ -3640,12 +3640,18 @@ static int smack_unix_stream_connect(struct sock *sock,
+               }
+       }
+ 
+-      /*
+-       * Cross reference the peer labels for SO_PEERSEC.
+-       */
+       if (rc == 0) {
++              /*
++               * Cross reference the peer labels for SO_PEERSEC.
++               */
+               nsp->smk_packet = ssp->smk_out;
+               ssp->smk_packet = osp->smk_out;
++
++              /*
++               * new/child/established socket must inherit listening socket 
labels
++               */
++              nsp->smk_out = osp->smk_out;
++              nsp->smk_in  = osp->smk_in;
+       }
+ 
+       return rc;
+@@ -4196,7 +4202,7 @@ static int smack_inet_conn_request(struct sock *sk, 
struct sk_buff *skb,
+       rcu_read_unlock();
+ 
+       if (hskp == NULL)
+-              rc = netlbl_req_setattr(req, &skp->smk_netlabel);
++              rc = netlbl_req_setattr(req, &ssp->smk_out->smk_netlabel);
+       else
+               netlbl_req_delattr(req);
+ 
+diff --git a/sound/hda/hdmi_chmap.c b/sound/hda/hdmi_chmap.c
+index 2efee794cac67..79ccec2da387c 100644
+--- a/sound/hda/hdmi_chmap.c
++++ b/sound/hda/hdmi_chmap.c
+@@ -753,6 +753,20 @@ static int hdmi_chmap_ctl_get(struct snd_kcontrol 
*kcontrol,
+       return 0;
+ }
+ 
++/* a simple sanity check for input values to chmap kcontrol */
++static int chmap_value_check(struct hdac_chmap *hchmap,
++                           const struct snd_ctl_elem_value *ucontrol)
++{
++      int i;
++
++      for (i = 0; i < hchmap->channels_max; i++) {
++              if (ucontrol->value.integer.value[i] < 0 ||
++                  ucontrol->value.integer.value[i] > SNDRV_CHMAP_LAST)
++                      return -EINVAL;
++      }
++      return 0;
++}
++
+ static int hdmi_chmap_ctl_put(struct snd_kcontrol *kcontrol,
+                             struct snd_ctl_elem_value *ucontrol)
+ {
+@@ -764,6 +778,10 @@ static int hdmi_chmap_ctl_put(struct snd_kcontrol 
*kcontrol,
+       unsigned char chmap[8], per_pin_chmap[8];
+       int i, err, ca, prepared = 0;
+ 
++      err = chmap_value_check(hchmap, ucontrol);
++      if (err < 0)
++              return err;
++
+       /* No monitor is connected in dyn_pcm_assign.
+        * It's invalid to setup the chmap
+        */
+diff --git a/sound/pci/hda/patch_conexant.c b/sound/pci/hda/patch_conexant.c
+index ba70e053c3a2c..d0f26d7ed8611 100644
+--- a/sound/pci/hda/patch_conexant.c
++++ b/sound/pci/hda/patch_conexant.c
+@@ -217,6 +217,7 @@ enum {
+       CXT_FIXUP_HEADSET_MIC,
+       CXT_FIXUP_HP_MIC_NO_PRESENCE,
+       CXT_PINCFG_SWS_JS201D,
++      CXT_PINCFG_TOP_SPEAKER,
+ };
+ 
+ /* for hda_fixup_thinkpad_acpi() */
+@@ -871,6 +872,13 @@ static const struct hda_fixup cxt_fixups[] = {
+               .type = HDA_FIXUP_PINS,
+               .v.pins = cxt_pincfg_sws_js201d,
+       },
++      [CXT_PINCFG_TOP_SPEAKER] = {
++              .type = HDA_FIXUP_PINS,
++              .v.pins = (const struct hda_pintbl[]) {
++                      { 0x1d, 0x82170111 },
++                      { }
++              },
++      },
+ };
+ 
+ static const struct snd_pci_quirk cxt5045_fixups[] = {
+@@ -965,6 +973,8 @@ static const struct snd_pci_quirk cxt5066_fixups[] = {
+       SND_PCI_QUIRK_VENDOR(0x17aa, "Thinkpad", CXT_FIXUP_THINKPAD_ACPI),
+       SND_PCI_QUIRK(0x1c06, 0x2011, "Lemote A1004", CXT_PINCFG_LEMOTE_A1004),
+       SND_PCI_QUIRK(0x1c06, 0x2012, "Lemote A1205", CXT_PINCFG_LEMOTE_A1205),
++      SND_PCI_QUIRK(0x2782, 0x12c3, "Sirius Gen1", CXT_PINCFG_TOP_SPEAKER),
++      SND_PCI_QUIRK(0x2782, 0x12c5, "Sirius Gen2", CXT_PINCFG_TOP_SPEAKER),
+       {}
+ };
+ 
+@@ -983,6 +993,7 @@ static const struct hda_model_fixup cxt5066_fixup_models[] 
= {
+       { .id = CXT_FIXUP_HP_MIC_NO_PRESENCE, .name = "hp-mic-fix" },
+       { .id = CXT_PINCFG_LENOVO_NOTEBOOK, .name = "lenovo-20149" },
+       { .id = CXT_PINCFG_SWS_JS201D, .name = "sws-js201d" },
++      { .id = CXT_PINCFG_TOP_SPEAKER, .name = "sirius-top-speaker" },
+       {}
+ };
+ 
+diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c
+index 56c9c4189f269..9f764d92469e6 100644
+--- a/sound/soc/soc-dapm.c
++++ b/sound/soc/soc-dapm.c
+@@ -4003,6 +4003,7 @@ static int snd_soc_dai_link_event(struct 
snd_soc_dapm_widget *w,
+ 
+       case SND_SOC_DAPM_POST_PMD:
+               kfree(substream->runtime);
++              substream->runtime = NULL;
+               break;
+ 
+       default:
+diff --git a/sound/soc/soc-topology.c b/sound/soc/soc-topology.c
+index 870b002293535..df8a1cd091930 100644
+--- a/sound/soc/soc-topology.c
++++ b/sound/soc/soc-topology.c
+@@ -993,6 +993,8 @@ static int soc_tplg_denum_create_values(struct soc_enum 
*se,
+               se->dobj.control.dvalues[i] = le32_to_cpu(ec->values[i]);
+       }
+ 
++      se->items = le32_to_cpu(ec->items);
++      se->values = (const unsigned int *)se->dobj.control.dvalues;
+       return 0;
+ }
+ 
+diff --git a/tools/lib/bpf/libbpf.c b/tools/lib/bpf/libbpf.c
+index b8849812449c3..98e34c5172673 100644
+--- a/tools/lib/bpf/libbpf.c
++++ b/tools/lib/bpf/libbpf.c
+@@ -4754,7 +4754,7 @@ __bpf_map__iter(const struct bpf_map *m, const struct 
bpf_object *obj, int i)
+ struct bpf_map *
+ bpf_map__next(const struct bpf_map *prev, const struct bpf_object *obj)
+ {
+-      if (prev == NULL)
++      if (prev == NULL && obj != NULL)
+               return obj->maps;
+ 
+       return __bpf_map__iter(prev, obj, 1);
+@@ -4763,7 +4763,7 @@ bpf_map__next(const struct bpf_map *prev, const struct 
bpf_object *obj)
+ struct bpf_map *
+ bpf_map__prev(const struct bpf_map *next, const struct bpf_object *obj)
+ {
+-      if (next == NULL) {
++      if (next == NULL && obj != NULL) {
+               if (!obj->nr_maps)
+                       return NULL;
+               return obj->maps + obj->nr_maps - 1;


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