diff --git a/Makefile b/Makefile
index 32686667bb7e..900cd7c3a9ee 100644
--- a/Makefile
+++ b/Makefile
@@ -1,6 +1,6 @@
 VERSION = 4
 PATCHLEVEL = 9
-SUBLEVEL = 58
+SUBLEVEL = 59
 EXTRAVERSION =
 NAME = Roaring Lionus
 
diff --git a/arch/parisc/kernel/syscall.S b/arch/parisc/kernel/syscall.S
index 23de307c3052..41e60a9c7db2 100644
--- a/arch/parisc/kernel/syscall.S
+++ b/arch/parisc/kernel/syscall.S
@@ -742,7 +742,7 @@ lws_compare_and_swap_2:
 10:    ldd     0(%r25), %r25
 11:    ldd     0(%r24), %r24
 #else
-       /* Load new value into r22/r23 - high/low */
+       /* Load old value into r22/r23 - high/low */
 10:    ldw     0(%r25), %r22
 11:    ldw     4(%r25), %r23
        /* Load new value into fr4 for atomic store later */
@@ -834,11 +834,11 @@ cas2_action:
        copy    %r0, %r28
 #else
        /* Compare first word */
-19:    ldw,ma  0(%r26), %r29
+19:    ldw     0(%r26), %r29
        sub,=   %r29, %r22, %r0
        b,n     cas2_end
        /* Compare second word */
-20:    ldw,ma  4(%r26), %r29
+20:    ldw     4(%r26), %r29
        sub,=   %r29, %r23, %r0
        b,n     cas2_end
        /* Perform the store */
diff --git a/arch/x86/kernel/cpu/microcode/intel.c 
b/arch/x86/kernel/cpu/microcode/intel.c
index cdc0deab00c9..13dbcc0f9d03 100644
--- a/arch/x86/kernel/cpu/microcode/intel.c
+++ b/arch/x86/kernel/cpu/microcode/intel.c
@@ -34,6 +34,7 @@
 #include <linux/mm.h>
 
 #include <asm/microcode_intel.h>
+#include <asm/intel-family.h>
 #include <asm/processor.h>
 #include <asm/tlbflush.h>
 #include <asm/setup.h>
@@ -1046,6 +1047,18 @@ static int get_ucode_fw(void *to, const void *from, 
size_t n)
        return 0;
 }
 
+static bool is_blacklisted(unsigned int cpu)
+{
+       struct cpuinfo_x86 *c = &cpu_data(cpu);
+
+       if (c->x86 == 6 && c->x86_model == INTEL_FAM6_BROADWELL_X) {
+               pr_err_once("late loading on model 79 is disabled.\n");
+               return true;
+       }
+
+       return false;
+}
+
 static enum ucode_state request_microcode_fw(int cpu, struct device *device,
                                             bool refresh_fw)
 {
@@ -1054,6 +1067,9 @@ static enum ucode_state request_microcode_fw(int cpu, 
struct device *device,
        const struct firmware *firmware;
        enum ucode_state ret;
 
+       if (is_blacklisted(cpu))
+               return UCODE_NFOUND;
+
        sprintf(name, "intel-ucode/%02x-%02x-%02x",
                c->x86, c->x86_model, c->x86_mask);
 
@@ -1078,6 +1094,9 @@ static int get_ucode_user(void *to, const void *from, 
size_t n)
 static enum ucode_state
 request_microcode_user(int cpu, const void __user *buf, size_t size)
 {
+       if (is_blacklisted(cpu))
+               return UCODE_NFOUND;
+
        return generic_load_microcode(cpu, (void *)buf, size, &get_ucode_user);
 }
 
diff --git a/crypto/asymmetric_keys/pkcs7_parser.c 
b/crypto/asymmetric_keys/pkcs7_parser.c
index af4cd8649117..d140d8bb2c96 100644
--- a/crypto/asymmetric_keys/pkcs7_parser.c
+++ b/crypto/asymmetric_keys/pkcs7_parser.c
@@ -88,6 +88,9 @@ static int pkcs7_check_authattrs(struct pkcs7_message *msg)
        bool want = false;
 
        sinfo = msg->signed_infos;
+       if (!sinfo)
+               goto inconsistent;
+
        if (sinfo->authattrs) {
                want = true;
                msg->have_authattrs = true;
diff --git a/drivers/bus/mvebu-mbus.c b/drivers/bus/mvebu-mbus.c
index c7f396903184..70db4d5638a6 100644
--- a/drivers/bus/mvebu-mbus.c
+++ b/drivers/bus/mvebu-mbus.c
@@ -720,7 +720,7 @@ mvebu_mbus_default_setup_cpu_target(struct mvebu_mbus_state 
*mbus)
                        if (mbus->hw_io_coherency)
                                w->mbus_attr |= ATTR_HW_COHERENCY;
                        w->base = base & DDR_BASE_CS_LOW_MASK;
-                       w->size = (size | ~DDR_SIZE_MASK) + 1;
+                       w->size = (u64)(size | ~DDR_SIZE_MASK) + 1;
                }
        }
        mvebu_mbus_dram_info.num_cs = cs;
diff --git a/drivers/clocksource/cs5535-clockevt.c 
b/drivers/clocksource/cs5535-clockevt.c
index 9a7e37cf56b0..e1d7373e63e0 100644
--- a/drivers/clocksource/cs5535-clockevt.c
+++ b/drivers/clocksource/cs5535-clockevt.c
@@ -117,7 +117,8 @@ static irqreturn_t mfgpt_tick(int irq, void *dev_id)
        /* Turn off the clock (and clear the event) */
        disable_timer(cs5535_event_clock);
 
-       if (clockevent_state_shutdown(&cs5535_clockevent))
+       if (clockevent_state_detached(&cs5535_clockevent) ||
+           clockevent_state_shutdown(&cs5535_clockevent))
                return IRQ_HANDLED;
 
        /* Clear the counter */
diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/bsp/g84.c 
b/drivers/gpu/drm/nouveau/nvkm/engine/bsp/g84.c
index 8e2e24a74774..44e116f7880d 100644
--- a/drivers/gpu/drm/nouveau/nvkm/engine/bsp/g84.c
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/bsp/g84.c
@@ -39,5 +39,5 @@ int
 g84_bsp_new(struct nvkm_device *device, int index, struct nvkm_engine 
**pengine)
 {
        return nvkm_xtensa_new_(&g84_bsp, device, index,
-                               true, 0x103000, pengine);
+                               device->chipset != 0x92, 0x103000, pengine);
 }
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/base.c 
b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/base.c
index 5df9669ea39c..240872a27c37 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/base.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/mmu/base.c
@@ -240,6 +240,8 @@ nvkm_vm_unmap_pgt(struct nvkm_vm *vm, int big, u32 fpde, 
u32 lpde)
                        mmu->func->map_pgt(vpgd->obj, pde, vpgt->mem);
                }
 
+               mmu->func->flush(vm);
+
                nvkm_memory_del(&pgt);
        }
 }
diff --git a/drivers/i2c/busses/i2c-ismt.c b/drivers/i2c/busses/i2c-ismt.c
index 8477292e92c8..7aea28815d99 100644
--- a/drivers/i2c/busses/i2c-ismt.c
+++ b/drivers/i2c/busses/i2c-ismt.c
@@ -340,12 +340,15 @@ static int ismt_process_desc(const struct ismt_desc *desc,
                        data->word = dma_buffer[0] | (dma_buffer[1] << 8);
                        break;
                case I2C_SMBUS_BLOCK_DATA:
-               case I2C_SMBUS_I2C_BLOCK_DATA:
                        if (desc->rxbytes != dma_buffer[0] + 1)
                                return -EMSGSIZE;
 
                        memcpy(data->block, dma_buffer, desc->rxbytes);
                        break;
+               case I2C_SMBUS_I2C_BLOCK_DATA:
+                       memcpy(&data->block[1], dma_buffer, desc->rxbytes);
+                       data->block[0] = desc->rxbytes;
+                       break;
                }
                return 0;
        }
diff --git a/drivers/i2c/busses/i2c-piix4.c b/drivers/i2c/busses/i2c-piix4.c
index c21ca7bf2efe..8f1c5f24c1df 100644
--- a/drivers/i2c/busses/i2c-piix4.c
+++ b/drivers/i2c/busses/i2c-piix4.c
@@ -94,6 +94,12 @@
 #define SB800_PIIX4_PORT_IDX_ALT       0x2e
 #define SB800_PIIX4_PORT_IDX_SEL       0x2f
 #define SB800_PIIX4_PORT_IDX_MASK      0x06
+#define SB800_PIIX4_PORT_IDX_SHIFT     1
+
+/* On kerncz, SmBus0Sel is at bit 20:19 of PMx00 DecodeEn */
+#define SB800_PIIX4_PORT_IDX_KERNCZ            0x02
+#define SB800_PIIX4_PORT_IDX_MASK_KERNCZ       0x18
+#define SB800_PIIX4_PORT_IDX_SHIFT_KERNCZ      3
 
 /* insmod parameters */
 
@@ -149,6 +155,8 @@ static const struct dmi_system_id piix4_dmi_ibm[] = {
  */
 static DEFINE_MUTEX(piix4_mutex_sb800);
 static u8 piix4_port_sel_sb800;
+static u8 piix4_port_mask_sb800;
+static u8 piix4_port_shift_sb800;
 static const char *piix4_main_port_names_sb800[PIIX4_MAX_ADAPTERS] = {
        " port 0", " port 2", " port 3", " port 4"
 };
@@ -347,7 +355,19 @@ static int piix4_setup_sb800(struct pci_dev *PIIX4_dev,
 
        /* Find which register is used for port selection */
        if (PIIX4_dev->vendor == PCI_VENDOR_ID_AMD) {
-               piix4_port_sel_sb800 = SB800_PIIX4_PORT_IDX_ALT;
+               switch (PIIX4_dev->device) {
+               case PCI_DEVICE_ID_AMD_KERNCZ_SMBUS:
+                       piix4_port_sel_sb800 = SB800_PIIX4_PORT_IDX_KERNCZ;
+                       piix4_port_mask_sb800 = 
SB800_PIIX4_PORT_IDX_MASK_KERNCZ;
+                       piix4_port_shift_sb800 = 
SB800_PIIX4_PORT_IDX_SHIFT_KERNCZ;
+                       break;
+               case PCI_DEVICE_ID_AMD_HUDSON2_SMBUS:
+               default:
+                       piix4_port_sel_sb800 = SB800_PIIX4_PORT_IDX_ALT;
+                       piix4_port_mask_sb800 = SB800_PIIX4_PORT_IDX_MASK;
+                       piix4_port_shift_sb800 = SB800_PIIX4_PORT_IDX_SHIFT;
+                       break;
+               }
        } else {
                mutex_lock(&piix4_mutex_sb800);
                outb_p(SB800_PIIX4_PORT_IDX_SEL, SB800_PIIX4_SMB_IDX);
@@ -355,6 +375,8 @@ static int piix4_setup_sb800(struct pci_dev *PIIX4_dev,
                piix4_port_sel_sb800 = (port_sel & 0x01) ?
                                       SB800_PIIX4_PORT_IDX_ALT :
                                       SB800_PIIX4_PORT_IDX;
+               piix4_port_mask_sb800 = SB800_PIIX4_PORT_IDX_MASK;
+               piix4_port_shift_sb800 = SB800_PIIX4_PORT_IDX_SHIFT;
                mutex_unlock(&piix4_mutex_sb800);
        }
 
@@ -616,8 +638,8 @@ static s32 piix4_access_sb800(struct i2c_adapter *adap, u16 
addr,
        smba_en_lo = inb_p(SB800_PIIX4_SMB_IDX + 1);
 
        port = adapdata->port;
-       if ((smba_en_lo & SB800_PIIX4_PORT_IDX_MASK) != port)
-               outb_p((smba_en_lo & ~SB800_PIIX4_PORT_IDX_MASK) | port,
+       if ((smba_en_lo & piix4_port_mask_sb800) != port)
+               outb_p((smba_en_lo & ~piix4_port_mask_sb800) | port,
                       SB800_PIIX4_SMB_IDX + 1);
 
        retval = piix4_access(adap, addr, flags, read_write,
@@ -706,7 +728,7 @@ static int piix4_add_adapter(struct pci_dev *dev, unsigned 
short smba,
 
        adapdata->smba = smba;
        adapdata->sb800_main = sb800_main;
-       adapdata->port = port << 1;
+       adapdata->port = port << piix4_port_shift_sb800;
 
        /* set up the sysfs linkage to our parent device */
        adap->dev.parent = &dev->dev;
diff --git a/drivers/iio/dummy/iio_simple_dummy_events.c 
b/drivers/iio/dummy/iio_simple_dummy_events.c
index ed63ffd849f8..7ec2a0bb0807 100644
--- a/drivers/iio/dummy/iio_simple_dummy_events.c
+++ b/drivers/iio/dummy/iio_simple_dummy_events.c
@@ -72,6 +72,7 @@ int iio_simple_dummy_write_event_config(struct iio_dev 
*indio_dev,
                                st->event_en = state;
                        else
                                return -EINVAL;
+                       break;
                default:
                        return -EINVAL;
                }
diff --git a/drivers/net/can/usb/esd_usb2.c b/drivers/net/can/usb/esd_usb2.c
index be928ce62d32..9fdb0f0bfa06 100644
--- a/drivers/net/can/usb/esd_usb2.c
+++ b/drivers/net/can/usb/esd_usb2.c
@@ -333,7 +333,7 @@ static void esd_usb2_rx_can_msg(struct esd_usb2_net_priv 
*priv,
                }
 
                cf->can_id = id & ESD_IDMASK;
-               cf->can_dlc = get_can_dlc(msg->msg.rx.dlc);
+               cf->can_dlc = get_can_dlc(msg->msg.rx.dlc & ~ESD_RTR);
 
                if (id & ESD_EXTID)
                        cf->can_id |= CAN_EFF_FLAG;
diff --git a/drivers/net/can/usb/gs_usb.c b/drivers/net/can/usb/gs_usb.c
index 05369dc9dd09..eea9aea14b00 100644
--- a/drivers/net/can/usb/gs_usb.c
+++ b/drivers/net/can/usb/gs_usb.c
@@ -375,6 +375,8 @@ static void gs_usb_receive_bulk_callback(struct urb *urb)
 
                gs_free_tx_context(txc);
 
+               atomic_dec(&dev->active_tx_urbs);
+
                netif_wake_queue(netdev);
        }
 
@@ -463,14 +465,6 @@ static void gs_usb_xmit_callback(struct urb *urb)
                          urb->transfer_buffer_length,
                          urb->transfer_buffer,
                          urb->transfer_dma);
-
-       atomic_dec(&dev->active_tx_urbs);
-
-       if (!netif_device_present(netdev))
-               return;
-
-       if (netif_queue_stopped(netdev))
-               netif_wake_queue(netdev);
 }
 
 static netdev_tx_t gs_can_start_xmit(struct sk_buff *skb,
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fweh.c 
b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fweh.c
index 79c081fd560f..6afcf86b9ba2 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fweh.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/fweh.c
@@ -429,7 +429,8 @@ void brcmf_fweh_process_event(struct brcmf_pub *drvr,
        if (code != BRCMF_E_IF && !fweh->evt_handler[code])
                return;
 
-       if (datalen > BRCMF_DCMD_MAXLEN)
+       if (datalen > BRCMF_DCMD_MAXLEN ||
+           datalen + sizeof(*event_packet) > packet_len)
                return;
 
        if (in_interrupt())
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmsmac/phy/phy_n.c 
b/drivers/net/wireless/broadcom/brcm80211/brcmsmac/phy/phy_n.c
index b3aab2fe96eb..ef685465f80a 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmsmac/phy/phy_n.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmsmac/phy/phy_n.c
@@ -14764,8 +14764,8 @@ static void 
wlc_phy_ipa_restore_tx_digi_filts_nphy(struct brcms_phy *pi)
 }
 
 static void
-wlc_phy_set_rfseq_nphy(struct brcms_phy *pi, u8 cmd, u8 *events, u8 *dlys,
-                      u8 len)
+wlc_phy_set_rfseq_nphy(struct brcms_phy *pi, u8 cmd, const u8 *events,
+                      const u8 *dlys, u8 len)
 {
        u32 t1_offset, t2_offset;
        u8 ctr;
@@ -15240,16 +15240,16 @@ static void 
wlc_phy_workarounds_nphy_gainctrl_2057_rev5(struct brcms_phy *pi)
 static void wlc_phy_workarounds_nphy_gainctrl_2057_rev6(struct brcms_phy *pi)
 {
        u16 currband;
-       s8 lna1G_gain_db_rev7[] = { 9, 14, 19, 24 };
-       s8 *lna1_gain_db = NULL;
-       s8 *lna1_gain_db_2 = NULL;
-       s8 *lna2_gain_db = NULL;
-       s8 tiaA_gain_db_rev7[] = { -9, -6, -3, 0, 3, 3, 3, 3, 3, 3 };
-       s8 *tia_gain_db;
-       s8 tiaA_gainbits_rev7[] = { 0, 1, 2, 3, 4, 4, 4, 4, 4, 4 };
-       s8 *tia_gainbits;
-       u16 rfseqA_init_gain_rev7[] = { 0x624f, 0x624f };
-       u16 *rfseq_init_gain;
+       static const s8 lna1G_gain_db_rev7[] = { 9, 14, 19, 24 };
+       const s8 *lna1_gain_db = NULL;
+       const s8 *lna1_gain_db_2 = NULL;
+       const s8 *lna2_gain_db = NULL;
+       static const s8 tiaA_gain_db_rev7[] = { -9, -6, -3, 0, 3, 3, 3, 3, 3, 3 
};
+       const s8 *tia_gain_db;
+       static const s8 tiaA_gainbits_rev7[] = { 0, 1, 2, 3, 4, 4, 4, 4, 4, 4 };
+       const s8 *tia_gainbits;
+       static const u16 rfseqA_init_gain_rev7[] = { 0x624f, 0x624f };
+       const u16 *rfseq_init_gain;
        u16 init_gaincode;
        u16 clip1hi_gaincode;
        u16 clip1md_gaincode = 0;
@@ -15310,10 +15310,9 @@ static void 
wlc_phy_workarounds_nphy_gainctrl_2057_rev6(struct brcms_phy *pi)
 
                        if ((freq <= 5080) || (freq == 5825)) {
 
-                               s8 lna1A_gain_db_rev7[] = { 11, 16, 20, 24 };
-                               s8 lna1A_gain_db_2_rev7[] = {
-                                       11, 17, 22, 25};
-                               s8 lna2A_gain_db_rev7[] = { -1, 6, 10, 14 };
+                               static const s8 lna1A_gain_db_rev7[] = { 11, 
16, 20, 24 };
+                               static const s8 lna1A_gain_db_2_rev7[] = { 11, 
17, 22, 25};
+                               static const s8 lna2A_gain_db_rev7[] = { -1, 6, 
10, 14 };
 
                                crsminu_th = 0x3e;
                                lna1_gain_db = lna1A_gain_db_rev7;
@@ -15321,10 +15320,9 @@ static void 
wlc_phy_workarounds_nphy_gainctrl_2057_rev6(struct brcms_phy *pi)
                                lna2_gain_db = lna2A_gain_db_rev7;
                        } else if ((freq >= 5500) && (freq <= 5700)) {
 
-                               s8 lna1A_gain_db_rev7[] = { 11, 17, 21, 25 };
-                               s8 lna1A_gain_db_2_rev7[] = {
-                                       12, 18, 22, 26};
-                               s8 lna2A_gain_db_rev7[] = { 1, 8, 12, 16 };
+                               static const s8 lna1A_gain_db_rev7[] = { 11, 
17, 21, 25 };
+                               static const s8 lna1A_gain_db_2_rev7[] = { 12, 
18, 22, 26};
+                               static const s8 lna2A_gain_db_rev7[] = { 1, 8, 
12, 16 };
 
                                crsminu_th = 0x45;
                                clip1md_gaincode_B = 0x14;
@@ -15335,10 +15333,9 @@ static void 
wlc_phy_workarounds_nphy_gainctrl_2057_rev6(struct brcms_phy *pi)
                                lna2_gain_db = lna2A_gain_db_rev7;
                        } else {
 
-                               s8 lna1A_gain_db_rev7[] = { 12, 18, 22, 26 };
-                               s8 lna1A_gain_db_2_rev7[] = {
-                                       12, 18, 22, 26};
-                               s8 lna2A_gain_db_rev7[] = { -1, 6, 10, 14 };
+                               static const s8 lna1A_gain_db_rev7[] = { 12, 
18, 22, 26 };
+                               static const s8 lna1A_gain_db_2_rev7[] = { 12, 
18, 22, 26};
+                               static const s8 lna2A_gain_db_rev7[] = { -1, 6, 
10, 14 };
 
                                crsminu_th = 0x41;
                                lna1_gain_db = lna1A_gain_db_rev7;
@@ -15450,65 +15447,65 @@ static void wlc_phy_workarounds_nphy_gainctrl(struct 
brcms_phy *pi)
                NPHY_RFSEQ_CMD_CLR_HIQ_DIS,
                NPHY_RFSEQ_CMD_SET_HPF_BW
        };
-       u8 rfseq_updategainu_dlys[] = { 10, 30, 1 };
-       s8 lna1G_gain_db[] = { 7, 11, 16, 23 };
-       s8 lna1G_gain_db_rev4[] = { 8, 12, 17, 25 };
-       s8 lna1G_gain_db_rev5[] = { 9, 13, 18, 26 };
-       s8 lna1G_gain_db_rev6[] = { 8, 13, 18, 25 };
-       s8 lna1G_gain_db_rev6_224B0[] = { 10, 14, 19, 27 };
-       s8 lna1A_gain_db[] = { 7, 11, 17, 23 };
-       s8 lna1A_gain_db_rev4[] = { 8, 12, 18, 23 };
-       s8 lna1A_gain_db_rev5[] = { 6, 10, 16, 21 };
-       s8 lna1A_gain_db_rev6[] = { 6, 10, 16, 21 };
-       s8 *lna1_gain_db = NULL;
-       s8 lna2G_gain_db[] = { -5, 6, 10, 14 };
-       s8 lna2G_gain_db_rev5[] = { -3, 7, 11, 16 };
-       s8 lna2G_gain_db_rev6[] = { -5, 6, 10, 14 };
-       s8 lna2G_gain_db_rev6_224B0[] = { -5, 6, 10, 15 };
-       s8 lna2A_gain_db[] = { -6, 2, 6, 10 };
-       s8 lna2A_gain_db_rev4[] = { -5, 2, 6, 10 };
-       s8 lna2A_gain_db_rev5[] = { -7, 0, 4, 8 };
-       s8 lna2A_gain_db_rev6[] = { -7, 0, 4, 8 };
-       s8 *lna2_gain_db = NULL;
-       s8 tiaG_gain_db[] = {
+       static const u8 rfseq_updategainu_dlys[] = { 10, 30, 1 };
+       static const s8 lna1G_gain_db[] = { 7, 11, 16, 23 };
+       static const s8 lna1G_gain_db_rev4[] = { 8, 12, 17, 25 };
+       static const s8 lna1G_gain_db_rev5[] = { 9, 13, 18, 26 };
+       static const s8 lna1G_gain_db_rev6[] = { 8, 13, 18, 25 };
+       static const s8 lna1G_gain_db_rev6_224B0[] = { 10, 14, 19, 27 };
+       static const s8 lna1A_gain_db[] = { 7, 11, 17, 23 };
+       static const s8 lna1A_gain_db_rev4[] = { 8, 12, 18, 23 };
+       static const s8 lna1A_gain_db_rev5[] = { 6, 10, 16, 21 };
+       static const s8 lna1A_gain_db_rev6[] = { 6, 10, 16, 21 };
+       const s8 *lna1_gain_db = NULL;
+       static const s8 lna2G_gain_db[] = { -5, 6, 10, 14 };
+       static const s8 lna2G_gain_db_rev5[] = { -3, 7, 11, 16 };
+       static const s8 lna2G_gain_db_rev6[] = { -5, 6, 10, 14 };
+       static const s8 lna2G_gain_db_rev6_224B0[] = { -5, 6, 10, 15 };
+       static const s8 lna2A_gain_db[] = { -6, 2, 6, 10 };
+       static const s8 lna2A_gain_db_rev4[] = { -5, 2, 6, 10 };
+       static const s8 lna2A_gain_db_rev5[] = { -7, 0, 4, 8 };
+       static const s8 lna2A_gain_db_rev6[] = { -7, 0, 4, 8 };
+       const s8 *lna2_gain_db = NULL;
+       static const s8 tiaG_gain_db[] = {
                0x0A, 0x0A, 0x0A, 0x0A, 0x0A, 0x0A, 0x0A, 0x0A, 0x0A, 0x0A };
-       s8 tiaA_gain_db[] = {
+       static const s8 tiaA_gain_db[] = {
                0x13, 0x13, 0x13, 0x13, 0x13, 0x13, 0x13, 0x13, 0x13, 0x13 };
-       s8 tiaA_gain_db_rev4[] = {
+       static const s8 tiaA_gain_db_rev4[] = {
                0x0d, 0x0d, 0x0d, 0x0d, 0x0d, 0x0d, 0x0d, 0x0d, 0x0d, 0x0d };
-       s8 tiaA_gain_db_rev5[] = {
+       static const s8 tiaA_gain_db_rev5[] = {
                0x0d, 0x0d, 0x0d, 0x0d, 0x0d, 0x0d, 0x0d, 0x0d, 0x0d, 0x0d };
-       s8 tiaA_gain_db_rev6[] = {
+       static const s8 tiaA_gain_db_rev6[] = {
                0x0d, 0x0d, 0x0d, 0x0d, 0x0d, 0x0d, 0x0d, 0x0d, 0x0d, 0x0d };
-       s8 *tia_gain_db;
-       s8 tiaG_gainbits[] = {
+       const s8 *tia_gain_db;
+       static const s8 tiaG_gainbits[] = {
                0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x03 };
-       s8 tiaA_gainbits[] = {
+       static const s8 tiaA_gainbits[] = {
                0x06, 0x06, 0x06, 0x06, 0x06, 0x06, 0x06, 0x06, 0x06, 0x06 };
-       s8 tiaA_gainbits_rev4[] = {
+       static const s8 tiaA_gainbits_rev4[] = {
                0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04 };
-       s8 tiaA_gainbits_rev5[] = {
+       static const s8 tiaA_gainbits_rev5[] = {
                0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04 };
-       s8 tiaA_gainbits_rev6[] = {
+       static const s8 tiaA_gainbits_rev6[] = {
                0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04 };
-       s8 *tia_gainbits;
-       s8 lpf_gain_db[] = { 0x00, 0x06, 0x0c, 0x12, 0x12, 0x12 };
-       s8 lpf_gainbits[] = { 0x00, 0x01, 0x02, 0x03, 0x03, 0x03 };
-       u16 rfseqG_init_gain[] = { 0x613f, 0x613f, 0x613f, 0x613f };
-       u16 rfseqG_init_gain_rev4[] = { 0x513f, 0x513f, 0x513f, 0x513f };
-       u16 rfseqG_init_gain_rev5[] = { 0x413f, 0x413f, 0x413f, 0x413f };
-       u16 rfseqG_init_gain_rev5_elna[] = {
+       const s8 *tia_gainbits;
+       static const s8 lpf_gain_db[] = { 0x00, 0x06, 0x0c, 0x12, 0x12, 0x12 };
+       static const s8 lpf_gainbits[] = { 0x00, 0x01, 0x02, 0x03, 0x03, 0x03 };
+       static const u16 rfseqG_init_gain[] = { 0x613f, 0x613f, 0x613f, 0x613f 
};
+       static const u16 rfseqG_init_gain_rev4[] = { 0x513f, 0x513f, 0x513f, 
0x513f };
+       static const u16 rfseqG_init_gain_rev5[] = { 0x413f, 0x413f, 0x413f, 
0x413f };
+       static const u16 rfseqG_init_gain_rev5_elna[] = {
                0x013f, 0x013f, 0x013f, 0x013f };
-       u16 rfseqG_init_gain_rev6[] = { 0x513f, 0x513f };
-       u16 rfseqG_init_gain_rev6_224B0[] = { 0x413f, 0x413f };
-       u16 rfseqG_init_gain_rev6_elna[] = { 0x113f, 0x113f };
-       u16 rfseqA_init_gain[] = { 0x516f, 0x516f, 0x516f, 0x516f };
-       u16 rfseqA_init_gain_rev4[] = { 0x614f, 0x614f, 0x614f, 0x614f };
-       u16 rfseqA_init_gain_rev4_elna[] = {
+       static const u16 rfseqG_init_gain_rev6[] = { 0x513f, 0x513f };
+       static const u16 rfseqG_init_gain_rev6_224B0[] = { 0x413f, 0x413f };
+       static const u16 rfseqG_init_gain_rev6_elna[] = { 0x113f, 0x113f };
+       static const u16 rfseqA_init_gain[] = { 0x516f, 0x516f, 0x516f, 0x516f 
};
+       static const u16 rfseqA_init_gain_rev4[] = { 0x614f, 0x614f, 0x614f, 
0x614f };
+       static const u16 rfseqA_init_gain_rev4_elna[] = {
                0x314f, 0x314f, 0x314f, 0x314f };
-       u16 rfseqA_init_gain_rev5[] = { 0x714f, 0x714f, 0x714f, 0x714f };
-       u16 rfseqA_init_gain_rev6[] = { 0x714f, 0x714f };
-       u16 *rfseq_init_gain;
+       static const u16 rfseqA_init_gain_rev5[] = { 0x714f, 0x714f, 0x714f, 
0x714f };
+       static const u16 rfseqA_init_gain_rev6[] = { 0x714f, 0x714f };
+       const u16 *rfseq_init_gain;
        u16 initG_gaincode = 0x627e;
        u16 initG_gaincode_rev4 = 0x527e;
        u16 initG_gaincode_rev5 = 0x427e;
@@ -15538,10 +15535,10 @@ static void wlc_phy_workarounds_nphy_gainctrl(struct 
brcms_phy *pi)
        u16 clip1mdA_gaincode_rev6 = 0x2084;
        u16 clip1md_gaincode = 0;
        u16 clip1loG_gaincode = 0x0074;
-       u16 clip1loG_gaincode_rev5[] = {
+       static const u16 clip1loG_gaincode_rev5[] = {
                0x0062, 0x0064, 0x006a, 0x106a, 0x106c, 0x1074, 0x107c, 0x207c
        };
-       u16 clip1loG_gaincode_rev6[] = {
+       static const u16 clip1loG_gaincode_rev6[] = {
                0x106a, 0x106c, 0x1074, 0x107c, 0x007e, 0x107e, 0x207e, 0x307e
        };
        u16 clip1loG_gaincode_rev6_224B0 = 0x1074;
@@ -16066,7 +16063,7 @@ static void wlc_phy_workarounds_nphy_gainctrl(struct 
brcms_phy *pi)
 
 static void wlc_phy_workarounds_nphy(struct brcms_phy *pi)
 {
-       u8 rfseq_rx2tx_events[] = {
+       static const u8 rfseq_rx2tx_events[] = {
                NPHY_RFSEQ_CMD_NOP,
                NPHY_RFSEQ_CMD_RXG_FBW,
                NPHY_RFSEQ_CMD_TR_SWITCH,
@@ -16076,7 +16073,7 @@ static void wlc_phy_workarounds_nphy(struct brcms_phy 
*pi)
                NPHY_RFSEQ_CMD_EXT_PA
        };
        u8 rfseq_rx2tx_dlys[] = { 8, 6, 6, 2, 4, 60, 1 };
-       u8 rfseq_tx2rx_events[] = {
+       static const u8 rfseq_tx2rx_events[] = {
                NPHY_RFSEQ_CMD_NOP,
                NPHY_RFSEQ_CMD_EXT_PA,
                NPHY_RFSEQ_CMD_TX_GAIN,
@@ -16085,8 +16082,8 @@ static void wlc_phy_workarounds_nphy(struct brcms_phy 
*pi)
                NPHY_RFSEQ_CMD_RXG_FBW,
                NPHY_RFSEQ_CMD_CLR_HIQ_DIS
        };
-       u8 rfseq_tx2rx_dlys[] = { 8, 6, 2, 4, 4, 6, 1 };
-       u8 rfseq_tx2rx_events_rev3[] = {
+       static const u8 rfseq_tx2rx_dlys[] = { 8, 6, 2, 4, 4, 6, 1 };
+       static const u8 rfseq_tx2rx_events_rev3[] = {
                NPHY_REV3_RFSEQ_CMD_EXT_PA,
                NPHY_REV3_RFSEQ_CMD_INT_PA_PU,
                NPHY_REV3_RFSEQ_CMD_TX_GAIN,
@@ -16096,7 +16093,7 @@ static void wlc_phy_workarounds_nphy(struct brcms_phy 
*pi)
                NPHY_REV3_RFSEQ_CMD_CLR_HIQ_DIS,
                NPHY_REV3_RFSEQ_CMD_END
        };
-       u8 rfseq_tx2rx_dlys_rev3[] = { 8, 4, 2, 2, 4, 4, 6, 1 };
+       static const u8 rfseq_tx2rx_dlys_rev3[] = { 8, 4, 2, 2, 4, 4, 6, 1 };
        u8 rfseq_rx2tx_events_rev3[] = {
                NPHY_REV3_RFSEQ_CMD_NOP,
                NPHY_REV3_RFSEQ_CMD_RXG_FBW,
@@ -16110,7 +16107,7 @@ static void wlc_phy_workarounds_nphy(struct brcms_phy 
*pi)
        };
        u8 rfseq_rx2tx_dlys_rev3[] = { 8, 6, 6, 4, 4, 18, 42, 1, 1 };
 
-       u8 rfseq_rx2tx_events_rev3_ipa[] = {
+       static const u8 rfseq_rx2tx_events_rev3_ipa[] = {
                NPHY_REV3_RFSEQ_CMD_NOP,
                NPHY_REV3_RFSEQ_CMD_RXG_FBW,
                NPHY_REV3_RFSEQ_CMD_TR_SWITCH,
@@ -16121,15 +16118,15 @@ static void wlc_phy_workarounds_nphy(struct brcms_phy 
*pi)
                NPHY_REV3_RFSEQ_CMD_INT_PA_PU,
                NPHY_REV3_RFSEQ_CMD_END
        };
-       u8 rfseq_rx2tx_dlys_rev3_ipa[] = { 8, 6, 6, 4, 4, 16, 43, 1, 1 };
-       u16 rfseq_rx2tx_dacbufpu_rev7[] = { 0x10f, 0x10f };
+       static const u8 rfseq_rx2tx_dlys_rev3_ipa[] = { 8, 6, 6, 4, 4, 16, 43, 
1, 1 };
+       static const u16 rfseq_rx2tx_dacbufpu_rev7[] = { 0x10f, 0x10f };
 
        s16 alpha0, alpha1, alpha2;
        s16 beta0, beta1, beta2;
        u32 leg_data_weights, ht_data_weights, nss1_data_weights,
            stbc_data_weights;
        u8 chan_freq_range = 0;
-       u16 dac_control = 0x0002;
+       static const u16 dac_control = 0x0002;
        u16 aux_adc_vmid_rev7_core0[] = { 0x8e, 0x96, 0x96, 0x96 };
        u16 aux_adc_vmid_rev7_core1[] = { 0x8f, 0x9f, 0x9f, 0x96 };
        u16 aux_adc_vmid_rev4[] = { 0xa2, 0xb4, 0xb4, 0x89 };
@@ -16139,8 +16136,8 @@ static void wlc_phy_workarounds_nphy(struct brcms_phy 
*pi)
        u16 aux_adc_gain_rev4[] = { 0x02, 0x02, 0x02, 0x00 };
        u16 aux_adc_gain_rev3[] = { 0x02, 0x02, 0x02, 0x00 };
        u16 *aux_adc_gain;
-       u16 sk_adc_vmid[] = { 0xb4, 0xb4, 0xb4, 0x24 };
-       u16 sk_adc_gain[] = { 0x02, 0x02, 0x02, 0x02 };
+       static const u16 sk_adc_vmid[] = { 0xb4, 0xb4, 0xb4, 0x24 };
+       static const u16 sk_adc_gain[] = { 0x02, 0x02, 0x02, 0x02 };
        s32 min_nvar_val = 0x18d;
        s32 min_nvar_offset_6mbps = 20;
        u8 pdetrange;
@@ -16151,9 +16148,9 @@ static void wlc_phy_workarounds_nphy(struct brcms_phy 
*pi)
        u16 rfseq_rx2tx_lpf_h_hpc_rev7 = 0x77;
        u16 rfseq_tx2rx_lpf_h_hpc_rev7 = 0x77;
        u16 rfseq_pktgn_lpf_h_hpc_rev7 = 0x77;
-       u16 rfseq_htpktgn_lpf_hpc_rev7[] = { 0x77, 0x11, 0x11 };
-       u16 rfseq_pktgn_lpf_hpc_rev7[] = { 0x11, 0x11 };
-       u16 rfseq_cckpktgn_lpf_hpc_rev7[] = { 0x11, 0x11 };
+       static const u16 rfseq_htpktgn_lpf_hpc_rev7[] = { 0x77, 0x11, 0x11 };
+       static const u16 rfseq_pktgn_lpf_hpc_rev7[] = { 0x11, 0x11 };
+       static const u16 rfseq_cckpktgn_lpf_hpc_rev7[] = { 0x11, 0x11 };
        u16 ipalvlshift_3p3_war_en = 0;
        u16 rccal_bcap_val, rccal_scap_val;
        u16 rccal_tx20_11b_bcap = 0;
@@ -24291,13 +24288,13 @@ static void wlc_phy_update_txcal_ladder_nphy(struct 
brcms_phy *pi, u16 core)
        u16 bbmult;
        u16 tblentry;
 
-       struct nphy_txiqcal_ladder ladder_lo[] = {
+       static const struct nphy_txiqcal_ladder ladder_lo[] = {
                {3, 0}, {4, 0}, {6, 0}, {9, 0}, {13, 0}, {18, 0},
                {25, 0}, {25, 1}, {25, 2}, {25, 3}, {25, 4}, {25, 5},
                {25, 6}, {25, 7}, {35, 7}, {50, 7}, {71, 7}, {100, 7}
        };
 
-       struct nphy_txiqcal_ladder ladder_iq[] = {
+       static const struct nphy_txiqcal_ladder ladder_iq[] = {
                {3, 0}, {4, 0}, {6, 0}, {9, 0}, {13, 0}, {18, 0},
                {25, 0}, {35, 0}, {50, 0}, {71, 0}, {100, 0}, {100, 1},
                {100, 2}, {100, 3}, {100, 4}, {100, 5}, {100, 6}, {100, 7}
@@ -25773,67 +25770,67 @@ wlc_phy_cal_txiqlo_nphy(struct brcms_phy *pi, struct 
nphy_txgains target_gain,
        u16 cal_gain[2];
        struct nphy_iqcal_params cal_params[2];
        u32 tbl_len;
-       void *tbl_ptr;
+       const void *tbl_ptr;
        bool ladder_updated[2];
        u8 mphase_cal_lastphase = 0;
        int bcmerror = 0;
        bool phyhang_avoid_state = false;
 
-       u16 tbl_tx_iqlo_cal_loft_ladder_20[] = {
+       static const u16 tbl_tx_iqlo_cal_loft_ladder_20[] = {
                0x0300, 0x0500, 0x0700, 0x0900, 0x0d00, 0x1100, 0x1900, 0x1901,
                0x1902,
                0x1903, 0x1904, 0x1905, 0x1906, 0x1907, 0x2407, 0x3207, 0x4607,
                0x6407
        };
 
-       u16 tbl_tx_iqlo_cal_iqimb_ladder_20[] = {
+       static const u16 tbl_tx_iqlo_cal_iqimb_ladder_20[] = {
                0x0200, 0x0300, 0x0600, 0x0900, 0x0d00, 0x1100, 0x1900, 0x2400,
                0x3200,
                0x4600, 0x6400, 0x6401, 0x6402, 0x6403, 0x6404, 0x6405, 0x6406,
                0x6407
        };
 
-       u16 tbl_tx_iqlo_cal_loft_ladder_40[] = {
+       static const u16 tbl_tx_iqlo_cal_loft_ladder_40[] = {
                0x0200, 0x0300, 0x0400, 0x0700, 0x0900, 0x0c00, 0x1200, 0x1201,
                0x1202,
                0x1203, 0x1204, 0x1205, 0x1206, 0x1207, 0x1907, 0x2307, 0x3207,
                0x4707
        };
 
-       u16 tbl_tx_iqlo_cal_iqimb_ladder_40[] = {
+       static const u16 tbl_tx_iqlo_cal_iqimb_ladder_40[] = {
                0x0100, 0x0200, 0x0400, 0x0700, 0x0900, 0x0c00, 0x1200, 0x1900,
                0x2300,
                0x3200, 0x4700, 0x4701, 0x4702, 0x4703, 0x4704, 0x4705, 0x4706,
                0x4707
        };
 
-       u16 tbl_tx_iqlo_cal_startcoefs[] = {
+       static const u16 tbl_tx_iqlo_cal_startcoefs[] = {
                0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
                0x0000
        };
 
-       u16 tbl_tx_iqlo_cal_cmds_fullcal[] = {
+       static const u16 tbl_tx_iqlo_cal_cmds_fullcal[] = {
                0x8123, 0x8264, 0x8086, 0x8245, 0x8056,
                0x9123, 0x9264, 0x9086, 0x9245, 0x9056
        };
 
-       u16 tbl_tx_iqlo_cal_cmds_recal[] = {
+       static const u16 tbl_tx_iqlo_cal_cmds_recal[] = {
                0x8101, 0x8253, 0x8053, 0x8234, 0x8034,
                0x9101, 0x9253, 0x9053, 0x9234, 0x9034
        };
 
-       u16 tbl_tx_iqlo_cal_startcoefs_nphyrev3[] = {
+       static const u16 tbl_tx_iqlo_cal_startcoefs_nphyrev3[] = {
                0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
                0x0000, 0x0000, 0x0000, 0x0000, 0x0000,
                0x0000
        };
 
-       u16 tbl_tx_iqlo_cal_cmds_fullcal_nphyrev3[] = {
+       static const u16 tbl_tx_iqlo_cal_cmds_fullcal_nphyrev3[] = {
                0x8434, 0x8334, 0x8084, 0x8267, 0x8056, 0x8234,
                0x9434, 0x9334, 0x9084, 0x9267, 0x9056, 0x9234
        };
 
-       u16 tbl_tx_iqlo_cal_cmds_recal_nphyrev3[] = {
+       static const u16 tbl_tx_iqlo_cal_cmds_recal_nphyrev3[] = {
                0x8423, 0x8323, 0x8073, 0x8256, 0x8045, 0x8223,
                0x9423, 0x9323, 0x9073, 0x9256, 0x9045, 0x9223
        };
diff --git a/drivers/net/wireless/realtek/rtlwifi/rtl8821ae/hw.c 
b/drivers/net/wireless/realtek/rtlwifi/rtl8821ae/hw.c
index 2cbef9647acc..1281ebe0c30a 100644
--- a/drivers/net/wireless/realtek/rtlwifi/rtl8821ae/hw.c
+++ b/drivers/net/wireless/realtek/rtlwifi/rtl8821ae/hw.c
@@ -1128,7 +1128,7 @@ static u8 _rtl8821ae_dbi_read(struct rtl_priv *rtlpriv, 
u16 addr)
        }
        if (0 == tmp) {
                read_addr = REG_DBI_RDATA + addr % 4;
-               ret = rtl_read_byte(rtlpriv, read_addr);
+               ret = rtl_read_word(rtlpriv, read_addr);
        }
        return ret;
 }
diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c
index f16491c25e73..ea20b2cc189f 100644
--- a/drivers/usb/class/cdc-acm.c
+++ b/drivers/usb/class/cdc-acm.c
@@ -1773,6 +1773,9 @@ static const struct usb_device_id acm_ids[] = {
        { USB_DEVICE(0xfff0, 0x0100), /* DATECS FP-2000 */
        .driver_info = NO_UNION_NORMAL, /* reports zero length descriptor */
        },
+       { USB_DEVICE(0x09d8, 0x0320), /* Elatec GmbH TWN3 */
+       .driver_info = NO_UNION_NORMAL, /* has misplaced union descriptor */
+       },
 
        { USB_DEVICE(0x2912, 0x0001), /* ATOL FPrint */
        .driver_info = CLEAR_HALT_CONDITIONS,
diff --git a/drivers/usb/core/config.c b/drivers/usb/core/config.c
index 11793386b4e9..5008f71fb08d 100644
--- a/drivers/usb/core/config.c
+++ b/drivers/usb/core/config.c
@@ -955,10 +955,12 @@ int usb_get_bos_descriptor(struct usb_device *dev)
        for (i = 0; i < num; i++) {
                buffer += length;
                cap = (struct usb_dev_cap_header *)buffer;
-               length = cap->bLength;
 
-               if (total_len < length)
+               if (total_len < sizeof(*cap) || total_len < cap->bLength) {
+                       dev->bos->desc->bNumDeviceCaps = i;
                        break;
+               }
+               length = cap->bLength;
                total_len -= length;
 
                if (cap->bDescriptorType != USB_DT_DEVICE_CAPABILITY) {
diff --git a/drivers/usb/core/devio.c b/drivers/usb/core/devio.c
index 860108c46e9a..c8075eb3db26 100644
--- a/drivers/usb/core/devio.c
+++ b/drivers/usb/core/devio.c
@@ -1577,11 +1577,7 @@ static int proc_do_submiturb(struct usb_dev_state *ps, 
struct usbdevfs_urb *uurb
                        totlen += isopkt[u].length;
                }
                u *= sizeof(struct usb_iso_packet_descriptor);
-               if (totlen <= uurb->buffer_length)
-                       uurb->buffer_length = totlen;
-               else
-                       WARN_ONCE(1, "uurb->buffer_length is too short %d vs 
%d",
-                                 totlen, uurb->buffer_length);
+               uurb->buffer_length = totlen;
                break;
 
        default:
diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c
index 8127f112958e..706b3d6a7614 100644
--- a/drivers/usb/core/hub.c
+++ b/drivers/usb/core/hub.c
@@ -2704,13 +2704,16 @@ static int hub_port_wait_reset(struct usb_hub *hub, int 
port1,
        if (!(portstatus & USB_PORT_STAT_CONNECTION))
                return -ENOTCONN;
 
-       /* bomb out completely if the connection bounced.  A USB 3.0
-        * connection may bounce if multiple warm resets were issued,
+       /* Retry if connect change is set but status is still connected.
+        * A USB 3.0 connection may bounce if multiple warm resets were issued,
         * but the device may have successfully re-connected. Ignore it.
         */
        if (!hub_is_superspeed(hub->hdev) &&
-                       (portchange & USB_PORT_STAT_C_CONNECTION))
-               return -ENOTCONN;
+           (portchange & USB_PORT_STAT_C_CONNECTION)) {
+               usb_clear_port_feature(hub->hdev, port1,
+                                      USB_PORT_FEAT_C_CONNECTION);
+               return -EAGAIN;
+       }
 
        if (!(portstatus & USB_PORT_STAT_ENABLE))
                return -EBUSY;
diff --git a/drivers/usb/core/quirks.c b/drivers/usb/core/quirks.c
index 82806e311202..a6aaf2f193a4 100644
--- a/drivers/usb/core/quirks.c
+++ b/drivers/usb/core/quirks.c
@@ -221,6 +221,10 @@ static const struct usb_device_id usb_quirk_list[] = {
        /* Corsair Strafe RGB */
        { USB_DEVICE(0x1b1c, 0x1b20), .driver_info = USB_QUIRK_DELAY_INIT },
 
+       /* MIDI keyboard WORLDE MINI */
+       { USB_DEVICE(0x1c75, 0x0204), .driver_info =
+                       USB_QUIRK_CONFIG_INTF_STRINGS },
+
        /* Acer C120 LED Projector */
        { USB_DEVICE(0x1de1, 0xc102), .driver_info = USB_QUIRK_NO_LPM },
 
diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c
index 82308af5801b..a7d239f5fc5f 100644
--- a/drivers/usb/host/xhci.c
+++ b/drivers/usb/host/xhci.c
@@ -4855,7 +4855,8 @@ int xhci_gen_setup(struct usb_hcd *hcd, xhci_get_quirks_t 
get_quirks)
                 */
                hcd->has_tt = 1;
        } else {
-               if (xhci->sbrn == 0x31) {
+               /* Some 3.1 hosts return sbrn 0x30, can't rely on sbrn alone */
+               if (xhci->sbrn == 0x31 || xhci->usb3_rhub.min_rev >= 1) {
                        xhci_info(xhci, "Host supports USB 3.1 Enhanced 
SuperSpeed\n");
                        hcd->speed = HCD_USB31;
                        hcd->self.root_hub->speed = USB_SPEED_SUPER_PLUS;
diff --git a/drivers/usb/musb/musb_core.c b/drivers/usb/musb/musb_core.c
index a6b6b1cf1317..aac28d998073 100644
--- a/drivers/usb/musb/musb_core.c
+++ b/drivers/usb/musb/musb_core.c
@@ -890,7 +890,7 @@ static irqreturn_t musb_stage0_irq(struct musb *musb, u8 
int_usb,
         */
        if (int_usb & MUSB_INTR_RESET) {
                handled = IRQ_HANDLED;
-               if (devctl & MUSB_DEVCTL_HM) {
+               if (is_host_active(musb)) {
                        /*
                         * When BABBLE happens what we can depends on which
                         * platform MUSB is running, because some platforms
@@ -900,9 +900,7 @@ static irqreturn_t musb_stage0_irq(struct musb *musb, u8 
int_usb,
                         * drop the session.
                         */
                        dev_err(musb->controller, "Babble\n");
-
-                       if (is_host_active(musb))
-                               musb_recover_from_babble(musb);
+                       musb_recover_from_babble(musb);
                } else {
                        musb_dbg(musb, "BUS RESET as %s",
                                usb_otg_state_string(musb->xceiv->otg->state));
diff --git a/drivers/usb/musb/sunxi.c b/drivers/usb/musb/sunxi.c
index 1408245be18e..3e1f3daa42f5 100644
--- a/drivers/usb/musb/sunxi.c
+++ b/drivers/usb/musb/sunxi.c
@@ -313,6 +313,8 @@ static int sunxi_musb_exit(struct musb *musb)
        if (test_bit(SUNXI_MUSB_FL_HAS_SRAM, &glue->flags))
                sunxi_sram_release(musb->controller->parent);
 
+       devm_usb_put_phy(glue->dev, glue->xceiv);
+
        return 0;
 }
 
diff --git a/drivers/usb/serial/metro-usb.c b/drivers/usb/serial/metro-usb.c
index 39e683096e94..45182c65fa1f 100644
--- a/drivers/usb/serial/metro-usb.c
+++ b/drivers/usb/serial/metro-usb.c
@@ -45,6 +45,7 @@ struct metrousb_private {
 static const struct usb_device_id id_table[] = {
        { USB_DEVICE(FOCUS_VENDOR_ID, FOCUS_PRODUCT_ID_BI) },
        { USB_DEVICE(FOCUS_VENDOR_ID, FOCUS_PRODUCT_ID_UNI) },
+       { USB_DEVICE_INTERFACE_CLASS(0x0c2e, 0x0730, 0xff) },   /* MS7820 */
        { }, /* Terminating entry. */
 };
 MODULE_DEVICE_TABLE(usb, id_table);
diff --git a/fs/crypto/keyinfo.c b/fs/crypto/keyinfo.c
index bb4606368eb1..a755fa1a0017 100644
--- a/fs/crypto/keyinfo.c
+++ b/fs/crypto/keyinfo.c
@@ -108,6 +108,11 @@ static int validate_user_key(struct fscrypt_info 
*crypt_info,
                goto out;
        }
        ukp = user_key_payload(keyring_key);
+       if (!ukp) {
+               /* key was revoked before we acquired its semaphore */
+               res = -EKEYREVOKED;
+               goto out;
+       }
        if (ukp->datalen != sizeof(struct fscrypt_key)) {
                res = -EINVAL;
                goto out;
diff --git a/fs/fscache/object-list.c b/fs/fscache/object-list.c
index 5d5ddaa84b21..37e0c31d284f 100644
--- a/fs/fscache/object-list.c
+++ b/fs/fscache/object-list.c
@@ -330,6 +330,13 @@ static void fscache_objlist_config(struct 
fscache_objlist_data *data)
        rcu_read_lock();
 
        confkey = user_key_payload(key);
+       if (!confkey) {
+               /* key was revoked */
+               rcu_read_unlock();
+               key_put(key);
+               goto no_config;
+       }
+
        buf = confkey->data;
 
        for (len = confkey->datalen - 1; len >= 0; len--) {
diff --git a/fs/xfs/libxfs/xfs_ag_resv.c b/fs/xfs/libxfs/xfs_ag_resv.c
index 33db69be4832..eed8f5867c46 100644
--- a/fs/xfs/libxfs/xfs_ag_resv.c
+++ b/fs/xfs/libxfs/xfs_ag_resv.c
@@ -157,7 +157,8 @@ __xfs_ag_resv_free(
        trace_xfs_ag_resv_free(pag, type, 0);
 
        resv = xfs_perag_resv(pag, type);
-       pag->pag_mount->m_ag_max_usable += resv->ar_asked;
+       if (pag->pag_agno == 0)
+               pag->pag_mount->m_ag_max_usable += resv->ar_asked;
        /*
         * AGFL blocks are always considered "free", so whatever
         * was reserved at mount time must be given back at umount.
@@ -217,7 +218,14 @@ __xfs_ag_resv_init(
                return error;
        }
 
-       mp->m_ag_max_usable -= ask;
+       /*
+        * Reduce the maximum per-AG allocation length by however much we're
+        * trying to reserve for an AG.  Since this is a filesystem-wide
+        * counter, we only make the adjustment for AG 0.  This assumes that
+        * there aren't any AGs hungrier for per-AG reservation than AG 0.
+        */
+       if (pag->pag_agno == 0)
+               mp->m_ag_max_usable -= ask;
 
        resv = xfs_perag_resv(pag, type);
        resv->ar_asked = ask;
diff --git a/fs/xfs/libxfs/xfs_alloc.c b/fs/xfs/libxfs/xfs_alloc.c
index 9f06a211e157..c3702cda010a 100644
--- a/fs/xfs/libxfs/xfs_alloc.c
+++ b/fs/xfs/libxfs/xfs_alloc.c
@@ -1579,6 +1579,10 @@ xfs_alloc_ag_vextent_small(
 
                                bp = xfs_btree_get_bufs(args->mp, args->tp,
                                        args->agno, fbno, 0);
+                               if (!bp) {
+                                       error = -EFSCORRUPTED;
+                                       goto error0;
+                               }
                                xfs_trans_binval(args->tp, bp);
                        }
                        args->len = 1;
@@ -2136,6 +2140,10 @@ xfs_alloc_fix_freelist(
                if (error)
                        goto out_agbp_relse;
                bp = xfs_btree_get_bufs(mp, tp, args->agno, bno, 0);
+               if (!bp) {
+                       error = -EFSCORRUPTED;
+                       goto out_agbp_relse;
+               }
                xfs_trans_binval(tp, bp);
        }
 
diff --git a/fs/xfs/libxfs/xfs_bmap.c b/fs/xfs/libxfs/xfs_bmap.c
index d2f4ab175096..7eb99701054f 100644
--- a/fs/xfs/libxfs/xfs_bmap.c
+++ b/fs/xfs/libxfs/xfs_bmap.c
@@ -4057,6 +4057,17 @@ xfs_trim_extent(
        }
 }
 
+/* trim extent to within eof */
+void
+xfs_trim_extent_eof(
+       struct xfs_bmbt_irec    *irec,
+       struct xfs_inode        *ip)
+
+{
+       xfs_trim_extent(irec, 0, XFS_B_TO_FSB(ip->i_mount,
+                                             i_size_read(VFS_I(ip))));
+}
+
 /*
  * Trim the returned map to the required bounds
  */
diff --git a/fs/xfs/libxfs/xfs_bmap.h b/fs/xfs/libxfs/xfs_bmap.h
index db53ac7ff6df..f1446d127120 100644
--- a/fs/xfs/libxfs/xfs_bmap.h
+++ b/fs/xfs/libxfs/xfs_bmap.h
@@ -196,6 +196,7 @@ void        xfs_bmap_trace_exlist(struct xfs_inode *ip, 
xfs_extnum_t cnt,
 
 void   xfs_trim_extent(struct xfs_bmbt_irec *irec, xfs_fileoff_t bno,
                xfs_filblks_t len);
+void   xfs_trim_extent_eof(struct xfs_bmbt_irec *, struct xfs_inode *);
 int    xfs_bmap_add_attrfork(struct xfs_inode *ip, int size, int rsvd);
 void   xfs_bmap_local_to_extents_empty(struct xfs_inode *ip, int whichfork);
 void   xfs_bmap_add_free(struct xfs_mount *mp, struct xfs_defer_ops *dfops,
diff --git a/fs/xfs/libxfs/xfs_log_format.h b/fs/xfs/libxfs/xfs_log_format.h
index 083cdd6d6c28..ce6958b1385c 100644
--- a/fs/xfs/libxfs/xfs_log_format.h
+++ b/fs/xfs/libxfs/xfs_log_format.h
@@ -270,6 +270,7 @@ typedef struct xfs_inode_log_format {
        __uint32_t              ilf_fields;     /* flags for fields logged */
        __uint16_t              ilf_asize;      /* size of attr d/ext/root */
        __uint16_t              ilf_dsize;      /* size of data/ext/root */
+       __uint32_t              ilf_pad;        /* pad for 64 bit boundary */
        __uint64_t              ilf_ino;        /* inode number */
        union {
                __uint32_t      ilfu_rdev;      /* rdev value for dev inode*/
@@ -280,29 +281,17 @@ typedef struct xfs_inode_log_format {
        __int32_t               ilf_boffset;    /* off of inode in buffer */
 } xfs_inode_log_format_t;
 
-typedef struct xfs_inode_log_format_32 {
-       __uint16_t              ilf_type;       /* inode log item type */
-       __uint16_t              ilf_size;       /* size of this item */
-       __uint32_t              ilf_fields;     /* flags for fields logged */
-       __uint16_t              ilf_asize;      /* size of attr d/ext/root */
-       __uint16_t              ilf_dsize;      /* size of data/ext/root */
-       __uint64_t              ilf_ino;        /* inode number */
-       union {
-               __uint32_t      ilfu_rdev;      /* rdev value for dev inode*/
-               uuid_t          ilfu_uuid;      /* mount point value */
-       } ilf_u;
-       __int64_t               ilf_blkno;      /* blkno of inode buffer */
-       __int32_t               ilf_len;        /* len of inode buffer */
-       __int32_t               ilf_boffset;    /* off of inode in buffer */
-} __attribute__((packed)) xfs_inode_log_format_32_t;
-
-typedef struct xfs_inode_log_format_64 {
+/*
+ * Old 32 bit systems will log in this format without the 64 bit
+ * alignment padding. Recovery will detect this and convert it to the
+ * correct format.
+ */
+struct xfs_inode_log_format_32 {
        __uint16_t              ilf_type;       /* inode log item type */
        __uint16_t              ilf_size;       /* size of this item */
        __uint32_t              ilf_fields;     /* flags for fields logged */
        __uint16_t              ilf_asize;      /* size of attr d/ext/root */
        __uint16_t              ilf_dsize;      /* size of data/ext/root */
-       __uint32_t              ilf_pad;        /* pad for 64 bit boundary */
        __uint64_t              ilf_ino;        /* inode number */
        union {
                __uint32_t      ilfu_rdev;      /* rdev value for dev inode*/
@@ -311,7 +300,7 @@ typedef struct xfs_inode_log_format_64 {
        __int64_t               ilf_blkno;      /* blkno of inode buffer */
        __int32_t               ilf_len;        /* len of inode buffer */
        __int32_t               ilf_boffset;    /* off of inode in buffer */
-} xfs_inode_log_format_64_t;
+} __attribute__((packed));
 
 
 /*
diff --git a/fs/xfs/xfs_acl.c b/fs/xfs/xfs_acl.c
index 7034e17535de..3354140de07e 100644
--- a/fs/xfs/xfs_acl.c
+++ b/fs/xfs/xfs_acl.c
@@ -247,6 +247,8 @@ xfs_set_mode(struct inode *inode, umode_t mode)
 int
 xfs_set_acl(struct inode *inode, struct posix_acl *acl, int type)
 {
+       umode_t mode;
+       bool set_mode = false;
        int error = 0;
 
        if (!acl)
@@ -257,16 +259,24 @@ xfs_set_acl(struct inode *inode, struct posix_acl *acl, 
int type)
                return error;
 
        if (type == ACL_TYPE_ACCESS) {
-               umode_t mode;
-
                error = posix_acl_update_mode(inode, &mode, &acl);
                if (error)
                        return error;
-               error = xfs_set_mode(inode, mode);
-               if (error)
-                       return error;
+               set_mode = true;
        }
 
  set_acl:
-       return __xfs_set_acl(inode, acl, type);
+       error =  __xfs_set_acl(inode, acl, type);
+       if (error)
+               return error;
+
+       /*
+        * We set the mode after successfully updating the ACL xattr because the
+        * xattr update can fail at ENOSPC and we don't want to change the mode
+        * if the ACL update hasn't been applied.
+        */
+       if (set_mode)
+               error = xfs_set_mode(inode, mode);
+
+       return error;
 }
diff --git a/fs/xfs/xfs_aops.c b/fs/xfs/xfs_aops.c
index d23889e0bedc..d31cd1ebd8e9 100644
--- a/fs/xfs/xfs_aops.c
+++ b/fs/xfs/xfs_aops.c
@@ -335,7 +335,8 @@ xfs_end_io(
                error = xfs_reflink_end_cow(ip, offset, size);
                break;
        case XFS_IO_UNWRITTEN:
-               error = xfs_iomap_write_unwritten(ip, offset, size);
+               /* writeback should never update isize */
+               error = xfs_iomap_write_unwritten(ip, offset, size, false);
                break;
        default:
                ASSERT(!xfs_ioend_is_append(ioend) || ioend->io_append_trans);
@@ -437,6 +438,19 @@ xfs_imap_valid(
 {
        offset >>= inode->i_blkbits;
 
+       /*
+        * We have to make sure the cached mapping is within EOF to protect
+        * against eofblocks trimming on file release leaving us with a stale
+        * mapping. Otherwise, a page for a subsequent file extending buffered
+        * write could get picked up by this writeback cycle and written to the
+        * wrong blocks.
+        *
+        * Note that what we really want here is a generic mapping invalidation
+        * mechanism to protect us from arbitrary extent modifying contexts, not
+        * just eofblocks.
+        */
+       xfs_trim_extent_eof(imap, XFS_I(inode));
+
        return offset >= imap->br_startoff &&
                offset < imap->br_startoff + imap->br_blockcount;
 }
@@ -725,6 +739,14 @@ xfs_vm_invalidatepage(
 {
        trace_xfs_invalidatepage(page->mapping->host, page, offset,
                                 length);
+
+       /*
+        * If we are invalidating the entire page, clear the dirty state from it
+        * so that we can check for attempts to release dirty cached pages in
+        * xfs_vm_releasepage().
+        */
+       if (offset == 0 && length >= PAGE_SIZE)
+               cancel_dirty_page(page);
        block_invalidatepage(page, offset, length);
 }
 
@@ -1180,25 +1202,27 @@ xfs_vm_releasepage(
         * mm accommodates an old ext3 case where clean pages might not have had
         * the dirty bit cleared. Thus, it can send actual dirty pages to
         * ->releasepage() via shrink_active_list(). Conversely,
-        * block_invalidatepage() can send pages that are still marked dirty
-        * but otherwise have invalidated buffers.
+        * block_invalidatepage() can send pages that are still marked dirty but
+        * otherwise have invalidated buffers.
         *
         * We want to release the latter to avoid unnecessary buildup of the
-        * LRU, skip the former and warn if we've left any lingering
-        * delalloc/unwritten buffers on clean pages. Skip pages with delalloc
-        * or unwritten buffers and warn if the page is not dirty. Otherwise
-        * try to release the buffers.
+        * LRU, so xfs_vm_invalidatepage() clears the page dirty flag on pages
+        * that are entirely invalidated and need to be released.  Hence the
+        * only time we should get dirty pages here is through
+        * shrink_active_list() and so we can simply skip those now.
+        *
+        * warn if we've left any lingering delalloc/unwritten buffers on clean
+        * or invalidated pages we are about to release.
         */
+       if (PageDirty(page))
+               return 0;
+
        xfs_count_page_state(page, &delalloc, &unwritten);
 
-       if (delalloc) {
-               WARN_ON_ONCE(!PageDirty(page));
+       if (WARN_ON_ONCE(delalloc))
                return 0;
-       }
-       if (unwritten) {
-               WARN_ON_ONCE(!PageDirty(page));
+       if (WARN_ON_ONCE(unwritten))
                return 0;
-       }
 
        return try_to_free_buffers(page);
 }
@@ -1532,6 +1556,21 @@ xfs_end_io_direct_write(
                return 0;
        }
 
+       if (flags & XFS_DIO_FLAG_COW)
+               error = xfs_reflink_end_cow(ip, offset, size);
+
+       /*
+        * Unwritten conversion updates the in-core isize after extent
+        * conversion but before updating the on-disk size. Updating isize any
+        * earlier allows a racing dio read to find unwritten extents before
+        * they are converted.
+        */
+       if (flags & XFS_DIO_FLAG_UNWRITTEN) {
+               trace_xfs_end_io_direct_write_unwritten(ip, offset, size);
+
+               return xfs_iomap_write_unwritten(ip, offset, size, true);
+       }
+
        /*
         * We need to update the in-core inode size here so that we don't end up
         * with the on-disk inode size being outside the in-core inode size. We
@@ -1548,13 +1587,6 @@ xfs_end_io_direct_write(
                i_size_write(inode, offset + size);
        spin_unlock(&ip->i_flags_lock);
 
-       if (flags & XFS_DIO_FLAG_COW)
-               error = xfs_reflink_end_cow(ip, offset, size);
-       if (flags & XFS_DIO_FLAG_UNWRITTEN) {
-               trace_xfs_end_io_direct_write_unwritten(ip, offset, size);
-
-               error = xfs_iomap_write_unwritten(ip, offset, size);
-       }
        if (flags & XFS_DIO_FLAG_APPEND) {
                trace_xfs_end_io_direct_write_append(ip, offset, size);
 
diff --git a/fs/xfs/xfs_attr_inactive.c b/fs/xfs/xfs_attr_inactive.c
index be0b79d8900f..c6643004e583 100644
--- a/fs/xfs/xfs_attr_inactive.c
+++ b/fs/xfs/xfs_attr_inactive.c
@@ -302,6 +302,8 @@ xfs_attr3_node_inactive(
                                                 &bp, XFS_ATTR_FORK);
                        if (error)
                                return error;
+                       node = bp->b_addr;
+                       btree = dp->d_ops->node_tree_p(node);
                        child_fsb = be32_to_cpu(btree[i + 1].before);
                        xfs_trans_brelse(*trans, bp);
                }
diff --git a/fs/xfs/xfs_bmap_util.c b/fs/xfs/xfs_bmap_util.c
index 5ffefac081f7..cb62871fb91d 100644
--- a/fs/xfs/xfs_bmap_util.c
+++ b/fs/xfs/xfs_bmap_util.c
@@ -84,6 +84,7 @@ xfs_zero_extent(
                GFP_NOFS, true);
 }
 
+#ifdef CONFIG_XFS_RT
 int
 xfs_bmap_rtalloc(
        struct xfs_bmalloca     *ap)    /* bmap alloc argument struct */
@@ -195,6 +196,7 @@ xfs_bmap_rtalloc(
        }
        return 0;
 }
+#endif /* CONFIG_XFS_RT */
 
 /*
  * Check if the endoff is outside the last extent. If so the caller will grow
@@ -1445,7 +1447,19 @@ xfs_shift_file_space(
                return error;
 
        /*
-        * The extent shiting code works on extent granularity. So, if
+        * Clean out anything hanging around in the cow fork now that
+        * we've flushed all the dirty data out to disk to avoid having
+        * CoW extents at the wrong offsets.
+        */
+       if (xfs_is_reflink_inode(ip)) {
+               error = xfs_reflink_cancel_cow_range(ip, offset, NULLFILEOFF,
+                               true);
+               if (error)
+                       return error;
+       }
+
+       /*
+        * The extent shifting code works on extent granularity. So, if
         * stop_fsb is not the starting block of extent, we need to split
         * the extent at stop_fsb.
         */
@@ -2094,11 +2108,31 @@ xfs_swap_extents(
                ip->i_d.di_flags2 |= tip->i_d.di_flags2 & XFS_DIFLAG2_REFLINK;
                tip->i_d.di_flags2 &= ~XFS_DIFLAG2_REFLINK;
                tip->i_d.di_flags2 |= f & XFS_DIFLAG2_REFLINK;
+       }
+
+       /* Swap the cow forks. */
+       if (xfs_sb_version_hasreflink(&mp->m_sb)) {
+               xfs_extnum_t    extnum;
+
+               ASSERT(ip->i_cformat == XFS_DINODE_FMT_EXTENTS);
+               ASSERT(tip->i_cformat == XFS_DINODE_FMT_EXTENTS);
+
+               extnum = ip->i_cnextents;
+               ip->i_cnextents = tip->i_cnextents;
+               tip->i_cnextents = extnum;
+
                cowfp = ip->i_cowfp;
                ip->i_cowfp = tip->i_cowfp;
                tip->i_cowfp = cowfp;
-               xfs_inode_set_cowblocks_tag(ip);
-               xfs_inode_set_cowblocks_tag(tip);
+
+               if (ip->i_cowfp && ip->i_cnextents)
+                       xfs_inode_set_cowblocks_tag(ip);
+               else
+                       xfs_inode_clear_cowblocks_tag(ip);
+               if (tip->i_cowfp && tip->i_cnextents)
+                       xfs_inode_set_cowblocks_tag(tip);
+               else
+                       xfs_inode_clear_cowblocks_tag(tip);
        }
 
        xfs_trans_log_inode(tp, ip,  src_log_flags);
diff --git a/fs/xfs/xfs_bmap_util.h b/fs/xfs/xfs_bmap_util.h
index f1005393785c..ce330f06563e 100644
--- a/fs/xfs/xfs_bmap_util.h
+++ b/fs/xfs/xfs_bmap_util.h
@@ -28,7 +28,20 @@ struct xfs_mount;
 struct xfs_trans;
 struct xfs_bmalloca;
 
+#ifdef CONFIG_XFS_RT
 int    xfs_bmap_rtalloc(struct xfs_bmalloca *ap);
+#else /* !CONFIG_XFS_RT */
+/*
+ * Attempts to allocate RT extents when RT is disable indicates corruption and
+ * should trigger a shutdown.
+ */
+static inline int
+xfs_bmap_rtalloc(struct xfs_bmalloca *ap)
+{
+       return -EFSCORRUPTED;
+}
+#endif /* CONFIG_XFS_RT */
+
 int    xfs_bmap_eof(struct xfs_inode *ip, xfs_fileoff_t endoff,
                     int whichfork, int *eof);
 int    xfs_bmap_punch_delalloc_range(struct xfs_inode *ip,
diff --git a/fs/xfs/xfs_error.c b/fs/xfs/xfs_error.c
index ed7ee4e8af73..bcf72970ca6b 100644
--- a/fs/xfs/xfs_error.c
+++ b/fs/xfs/xfs_error.c
@@ -167,7 +167,7 @@ xfs_verifier_error(
 {
        struct xfs_mount *mp = bp->b_target->bt_mount;
 
-       xfs_alert(mp, "Metadata %s detected at %pF, %s block 0x%llx",
+       xfs_alert(mp, "Metadata %s detected at %pS, %s block 0x%llx",
                  bp->b_error == -EFSBADCRC ? "CRC error" : "corruption",
                  __return_address, bp->b_ops->name, bp->b_bn);
 
diff --git a/fs/xfs/xfs_file.c b/fs/xfs/xfs_file.c
index 586b398f268d..362c6b4c1186 100644
--- a/fs/xfs/xfs_file.c
+++ b/fs/xfs/xfs_file.c
@@ -92,7 +92,7 @@ xfs_zero_range(
        xfs_off_t               count,
        bool                    *did_zero)
 {
-       return iomap_zero_range(VFS_I(ip), pos, count, NULL, &xfs_iomap_ops);
+       return iomap_zero_range(VFS_I(ip), pos, count, did_zero, 
&xfs_iomap_ops);
 }
 
 int
diff --git a/fs/xfs/xfs_inode.c b/fs/xfs/xfs_inode.c
index 9e795ab08a53..fe9a9a183b2d 100644
--- a/fs/xfs/xfs_inode.c
+++ b/fs/xfs/xfs_inode.c
@@ -1632,10 +1632,12 @@ xfs_itruncate_extents(
                goto out;
 
        /*
-        * Clear the reflink flag if we truncated everything.
+        * Clear the reflink flag if there are no data fork blocks and
+        * there are no extents staged in the cow fork.
         */
-       if (ip->i_d.di_nblocks == 0 && xfs_is_reflink_inode(ip)) {
-               ip->i_d.di_flags2 &= ~XFS_DIFLAG2_REFLINK;
+       if (xfs_is_reflink_inode(ip) && ip->i_cnextents == 0) {
+               if (ip->i_d.di_nblocks == 0)
+                       ip->i_d.di_flags2 &= ~XFS_DIFLAG2_REFLINK;
                xfs_inode_clear_cowblocks_tag(ip);
        }
 
diff --git a/fs/xfs/xfs_inode_item.c b/fs/xfs/xfs_inode_item.c
index 94915747042c..d0a3c4bd2c38 100644
--- a/fs/xfs/xfs_inode_item.c
+++ b/fs/xfs/xfs_inode_item.c
@@ -364,6 +364,9 @@ xfs_inode_to_log_dinode(
        to->di_dmstate = from->di_dmstate;
        to->di_flags = from->di_flags;
 
+       /* log a dummy value to ensure log structure is fully initialised */
+       to->di_next_unlinked = NULLAGINO;
+
        if (from->di_version == 3) {
                to->di_changecount = inode->i_version;
                to->di_crtime.t_sec = from->di_crtime.t_sec;
@@ -404,6 +407,11 @@ xfs_inode_item_format_core(
  * the second with the on-disk inode structure, and a possible third and/or
  * fourth with the inode data/extents/b-tree root and inode attributes
  * data/extents/b-tree root.
+ *
+ * Note: Always use the 64 bit inode log format structure so we don't
+ * leave an uninitialised hole in the format item on 64 bit systems. Log
+ * recovery on 32 bit systems handles this just fine, so there's no reason
+ * for not using an initialising the properly padded structure all the time.
  */
 STATIC void
 xfs_inode_item_format(
@@ -412,8 +420,8 @@ xfs_inode_item_format(
 {
        struct xfs_inode_log_item *iip = INODE_ITEM(lip);
        struct xfs_inode        *ip = iip->ili_inode;
-       struct xfs_inode_log_format *ilf;
        struct xfs_log_iovec    *vecp = NULL;
+       struct xfs_inode_log_format *ilf;
 
        ASSERT(ip->i_d.di_version > 1);
 
@@ -425,7 +433,17 @@ xfs_inode_item_format(
        ilf->ilf_boffset = ip->i_imap.im_boffset;
        ilf->ilf_fields = XFS_ILOG_CORE;
        ilf->ilf_size = 2; /* format + core */
-       xlog_finish_iovec(lv, vecp, sizeof(struct xfs_inode_log_format));
+
+       /*
+        * make sure we don't leak uninitialised data into the log in the case
+        * when we don't log every field in the inode.
+        */
+       ilf->ilf_dsize = 0;
+       ilf->ilf_asize = 0;
+       ilf->ilf_pad = 0;
+       memset(&ilf->ilf_u.ilfu_uuid, 0, sizeof(ilf->ilf_u.ilfu_uuid));
+
+       xlog_finish_iovec(lv, vecp, sizeof(*ilf));
 
        xfs_inode_item_format_core(ip, lv, &vecp);
        xfs_inode_item_format_data_fork(iip, ilf, lv, &vecp);
@@ -745,7 +763,7 @@ xfs_iflush_done(
                 */
                iip = INODE_ITEM(blip);
                if ((iip->ili_logged && blip->li_lsn == iip->ili_flush_lsn) ||
-                   lip->li_flags & XFS_LI_FAILED)
+                   (blip->li_flags & XFS_LI_FAILED))
                        need_ail++;
 
                blip = next;
@@ -855,48 +873,30 @@ xfs_istale_done(
 }
 
 /*
- * convert an xfs_inode_log_format struct from either 32 or 64 bit versions
- * (which can have different field alignments) to the native version
+ * convert an xfs_inode_log_format struct from the old 32 bit version
+ * (which can have different field alignments) to the native 64 bit version
  */
 int
 xfs_inode_item_format_convert(
-       xfs_log_iovec_t         *buf,
-       xfs_inode_log_format_t  *in_f)
+       struct xfs_log_iovec            *buf,
+       struct xfs_inode_log_format     *in_f)
 {
-       if (buf->i_len == sizeof(xfs_inode_log_format_32_t)) {
-               xfs_inode_log_format_32_t *in_f32 = buf->i_addr;
-
-               in_f->ilf_type = in_f32->ilf_type;
-               in_f->ilf_size = in_f32->ilf_size;
-               in_f->ilf_fields = in_f32->ilf_fields;
-               in_f->ilf_asize = in_f32->ilf_asize;
-               in_f->ilf_dsize = in_f32->ilf_dsize;
-               in_f->ilf_ino = in_f32->ilf_ino;
-               /* copy biggest field of ilf_u */
-               memcpy(in_f->ilf_u.ilfu_uuid.__u_bits,
-                      in_f32->ilf_u.ilfu_uuid.__u_bits,
-                      sizeof(uuid_t));
-               in_f->ilf_blkno = in_f32->ilf_blkno;
-               in_f->ilf_len = in_f32->ilf_len;
-               in_f->ilf_boffset = in_f32->ilf_boffset;
-               return 0;
-       } else if (buf->i_len == sizeof(xfs_inode_log_format_64_t)){
-               xfs_inode_log_format_64_t *in_f64 = buf->i_addr;
-
-               in_f->ilf_type = in_f64->ilf_type;
-               in_f->ilf_size = in_f64->ilf_size;
-               in_f->ilf_fields = in_f64->ilf_fields;
-               in_f->ilf_asize = in_f64->ilf_asize;
-               in_f->ilf_dsize = in_f64->ilf_dsize;
-               in_f->ilf_ino = in_f64->ilf_ino;
-               /* copy biggest field of ilf_u */
-               memcpy(in_f->ilf_u.ilfu_uuid.__u_bits,
-                      in_f64->ilf_u.ilfu_uuid.__u_bits,
-                      sizeof(uuid_t));
-               in_f->ilf_blkno = in_f64->ilf_blkno;
-               in_f->ilf_len = in_f64->ilf_len;
-               in_f->ilf_boffset = in_f64->ilf_boffset;
-               return 0;
-       }
-       return -EFSCORRUPTED;
+       struct xfs_inode_log_format_32  *in_f32 = buf->i_addr;
+
+       if (buf->i_len != sizeof(*in_f32))
+               return -EFSCORRUPTED;
+
+       in_f->ilf_type = in_f32->ilf_type;
+       in_f->ilf_size = in_f32->ilf_size;
+       in_f->ilf_fields = in_f32->ilf_fields;
+       in_f->ilf_asize = in_f32->ilf_asize;
+       in_f->ilf_dsize = in_f32->ilf_dsize;
+       in_f->ilf_ino = in_f32->ilf_ino;
+       /* copy biggest field of ilf_u */
+       memcpy(in_f->ilf_u.ilfu_uuid.__u_bits,
+              in_f32->ilf_u.ilfu_uuid.__u_bits, sizeof(uuid_t));
+       in_f->ilf_blkno = in_f32->ilf_blkno;
+       in_f->ilf_len = in_f32->ilf_len;
+       in_f->ilf_boffset = in_f32->ilf_boffset;
+       return 0;
 }
diff --git a/fs/xfs/xfs_iomap.c b/fs/xfs/xfs_iomap.c
index 65740d1cbd92..f286f63c430c 100644
--- a/fs/xfs/xfs_iomap.c
+++ b/fs/xfs/xfs_iomap.c
@@ -836,7 +836,8 @@ int
 xfs_iomap_write_unwritten(
        xfs_inode_t     *ip,
        xfs_off_t       offset,
-       xfs_off_t       count)
+       xfs_off_t       count,
+       bool            update_isize)
 {
        xfs_mount_t     *mp = ip->i_mount;
        xfs_fileoff_t   offset_fsb;
@@ -847,6 +848,7 @@ xfs_iomap_write_unwritten(
        xfs_trans_t     *tp;
        xfs_bmbt_irec_t imap;
        struct xfs_defer_ops dfops;
+       struct inode    *inode = VFS_I(ip);
        xfs_fsize_t     i_size;
        uint            resblks;
        int             error;
@@ -906,7 +908,8 @@ xfs_iomap_write_unwritten(
                i_size = XFS_FSB_TO_B(mp, offset_fsb + count_fsb);
                if (i_size > offset + count)
                        i_size = offset + count;
-
+               if (update_isize && i_size > i_size_read(inode))
+                       i_size_write(inode, i_size);
                i_size = xfs_new_eof(ip, i_size);
                if (i_size) {
                        ip->i_d.di_size = i_size;
diff --git a/fs/xfs/xfs_iomap.h b/fs/xfs/xfs_iomap.h
index 6d45cf01fcff..d71703af5c76 100644
--- a/fs/xfs/xfs_iomap.h
+++ b/fs/xfs/xfs_iomap.h
@@ -27,7 +27,7 @@ int xfs_iomap_write_direct(struct xfs_inode *, xfs_off_t, 
size_t,
                        struct xfs_bmbt_irec *, int);
 int xfs_iomap_write_allocate(struct xfs_inode *, int, xfs_off_t,
                        struct xfs_bmbt_irec *);
-int xfs_iomap_write_unwritten(struct xfs_inode *, xfs_off_t, xfs_off_t);
+int xfs_iomap_write_unwritten(struct xfs_inode *, xfs_off_t, xfs_off_t, bool);
 
 void xfs_bmbt_to_iomap(struct xfs_inode *, struct iomap *,
                struct xfs_bmbt_irec *);
diff --git a/fs/xfs/xfs_ondisk.h b/fs/xfs/xfs_ondisk.h
index 0c381d71b242..0492436a053f 100644
--- a/fs/xfs/xfs_ondisk.h
+++ b/fs/xfs/xfs_ondisk.h
@@ -134,7 +134,7 @@ xfs_check_ondisk_structs(void)
        XFS_CHECK_STRUCT_SIZE(struct xfs_icreate_log,           28);
        XFS_CHECK_STRUCT_SIZE(struct xfs_ictimestamp,           8);
        XFS_CHECK_STRUCT_SIZE(struct xfs_inode_log_format_32,   52);
-       XFS_CHECK_STRUCT_SIZE(struct xfs_inode_log_format_64,   56);
+       XFS_CHECK_STRUCT_SIZE(struct xfs_inode_log_format,      56);
        XFS_CHECK_STRUCT_SIZE(struct xfs_qoff_logformat,        20);
        XFS_CHECK_STRUCT_SIZE(struct xfs_trans_header,          16);
 }
diff --git a/fs/xfs/xfs_pnfs.c b/fs/xfs/xfs_pnfs.c
index 93a7aafa56d6..cecd37569ddb 100644
--- a/fs/xfs/xfs_pnfs.c
+++ b/fs/xfs/xfs_pnfs.c
@@ -279,7 +279,7 @@ xfs_fs_commit_blocks(
                                        (end - 1) >> PAGE_SHIFT);
                WARN_ON_ONCE(error);
 
-               error = xfs_iomap_write_unwritten(ip, start, length);
+               error = xfs_iomap_write_unwritten(ip, start, length, false);
                if (error)
                        goto out_drop_iolock;
        }
diff --git a/fs/xfs/xfs_reflink.c b/fs/xfs/xfs_reflink.c
index 0015c19c7455..17d3c964a2a2 100644
--- a/fs/xfs/xfs_reflink.c
+++ b/fs/xfs/xfs_reflink.c
@@ -767,7 +767,13 @@ xfs_reflink_end_cow(
 
        /* If there is a hole at end_fsb - 1 go to the previous extent */
        if (eof || got.br_startoff > end_fsb) {
-               ASSERT(idx > 0);
+               /*
+                * In case of racing, overlapping AIO writes no COW extents
+                * might be left by the time I/O completes for the loser of
+                * the race.  In that case we are done.
+                */
+               if (idx <= 0)
+                       goto out_cancel;
                xfs_bmbt_get_all(xfs_iext_get_ext(ifp, --idx), &got);
        }
 
@@ -841,6 +847,7 @@ xfs_reflink_end_cow(
 
 out_defer:
        xfs_defer_cancel(&dfops);
+out_cancel:
        xfs_trans_cancel(tp);
        xfs_iunlock(ip, XFS_ILOCK_EXCL);
 out:
diff --git a/include/linux/hyperv.h b/include/linux/hyperv.h
index d596a076da11..8cc99de27bc2 100644
--- a/include/linux/hyperv.h
+++ b/include/linux/hyperv.h
@@ -1521,11 +1521,11 @@ static inline  void hv_signal_on_read(struct 
vmbus_channel *channel)
 
        cur_write_sz = hv_get_bytes_to_write(rbi);
 
-       if (cur_write_sz < pending_sz)
+       if (cur_write_sz <= pending_sz)
                return;
 
        cached_write_sz = hv_get_cached_bytes_to_write(rbi);
-       if (cached_write_sz < pending_sz)
+       if (cached_write_sz <= pending_sz)
                vmbus_setevent(channel);
 
        return;
diff --git a/include/linux/key.h b/include/linux/key.h
index 6a544726903e..ed9b44fd9580 100644
--- a/include/linux/key.h
+++ b/include/linux/key.h
@@ -126,6 +126,11 @@ static inline bool is_key_possessed(const key_ref_t 
key_ref)
        return (unsigned long) key_ref & 1UL;
 }
 
+enum key_state {
+       KEY_IS_UNINSTANTIATED,
+       KEY_IS_POSITIVE,                /* Positively instantiated */
+};
+
 /*****************************************************************************/
 /*
  * authentication token / access credential / keyring
@@ -157,6 +162,7 @@ struct key {
                                                 * - may not match RCU 
dereferenced payload
                                                 * - payload should contain own 
length
                                                 */
+       short                   state;          /* Key state (+) or rejection 
error (-) */
 
 #ifdef KEY_DEBUGGING
        unsigned                magic;
@@ -165,18 +171,16 @@ struct key {
 #endif
 
        unsigned long           flags;          /* status flags (change with 
bitops) */
-#define KEY_FLAG_INSTANTIATED  0       /* set if key has been instantiated */
-#define KEY_FLAG_DEAD          1       /* set if key type has been deleted */
-#define KEY_FLAG_REVOKED       2       /* set if key had been revoked */
-#define KEY_FLAG_IN_QUOTA      3       /* set if key consumes quota */
-#define KEY_FLAG_USER_CONSTRUCT        4       /* set if key is being 
constructed in userspace */
-#define KEY_FLAG_NEGATIVE      5       /* set if key is negative */
-#define KEY_FLAG_ROOT_CAN_CLEAR        6       /* set if key can be cleared by 
root without permission */
-#define KEY_FLAG_INVALIDATED   7       /* set if key has been invalidated */
-#define KEY_FLAG_BUILTIN       8       /* set if key is built in to the kernel 
*/
-#define KEY_FLAG_ROOT_CAN_INVAL        9       /* set if key can be 
invalidated by root without permission */
-#define KEY_FLAG_KEEP          10      /* set if key should not be removed */
-#define KEY_FLAG_UID_KEYRING   11      /* set if key is a user or user session 
keyring */
+#define KEY_FLAG_DEAD          0       /* set if key type has been deleted */
+#define KEY_FLAG_REVOKED       1       /* set if key had been revoked */
+#define KEY_FLAG_IN_QUOTA      2       /* set if key consumes quota */
+#define KEY_FLAG_USER_CONSTRUCT        3       /* set if key is being 
constructed in userspace */
+#define KEY_FLAG_ROOT_CAN_CLEAR        4       /* set if key can be cleared by 
root without permission */
+#define KEY_FLAG_INVALIDATED   5       /* set if key has been invalidated */
+#define KEY_FLAG_BUILTIN       6       /* set if key is built in to the kernel 
*/
+#define KEY_FLAG_ROOT_CAN_INVAL        7       /* set if key can be 
invalidated by root without permission */
+#define KEY_FLAG_KEEP          8       /* set if key should not be removed */
+#define KEY_FLAG_UID_KEYRING   9       /* set if key is a user or user session 
keyring */
 
        /* the key type and key description string
         * - the desc is used to match a key against search criteria
@@ -202,7 +206,6 @@ struct key {
                        struct list_head name_link;
                        struct assoc_array keys;
                };
-               int reject_error;
        };
 
        /* This is set on a keyring to restrict the addition of a link to a key
@@ -343,17 +346,27 @@ extern void key_set_timeout(struct key *, unsigned);
 #define        KEY_NEED_SETATTR 0x20   /* Require permission to change 
attributes */
 #define        KEY_NEED_ALL    0x3f    /* All the above permissions */
 
+static inline short key_read_state(const struct key *key)
+{
+       /* Barrier versus mark_key_instantiated(). */
+       return smp_load_acquire(&key->state);
+}
+
 /**
- * key_is_instantiated - Determine if a key has been positively instantiated
+ * key_is_positive - Determine if a key has been positively instantiated
  * @key: The key to check.
  *
  * Return true if the specified key has been positively instantiated, false
  * otherwise.
  */
-static inline bool key_is_instantiated(const struct key *key)
+static inline bool key_is_positive(const struct key *key)
+{
+       return key_read_state(key) == KEY_IS_POSITIVE;
+}
+
+static inline bool key_is_negative(const struct key *key)
 {
-       return test_bit(KEY_FLAG_INSTANTIATED, &key->flags) &&
-               !test_bit(KEY_FLAG_NEGATIVE, &key->flags);
+       return key_read_state(key) < 0;
 }
 
 #define rcu_dereference_key(KEY)                                       \
diff --git a/include/linux/mbus.h b/include/linux/mbus.h
index 2931aa43dab1..f70420e65ad7 100644
--- a/include/linux/mbus.h
+++ b/include/linux/mbus.h
@@ -31,8 +31,8 @@ struct mbus_dram_target_info
        struct mbus_dram_window {
                u8      cs_index;
                u8      mbus_attr;
-               u32     base;
-               u32     size;
+               u64     base;
+               u64     size;
        } cs[4];
 };
 
diff --git a/lib/digsig.c b/lib/digsig.c
index 55b8b2f41a9e..a876156503f0 100644
--- a/lib/digsig.c
+++ b/lib/digsig.c
@@ -87,6 +87,12 @@ static int digsig_verify_rsa(struct key *key,
        down_read(&key->sem);
        ukp = user_key_payload(key);
 
+       if (!ukp) {
+               /* key was revoked before we acquired its semaphore */
+               err = -EKEYREVOKED;
+               goto err1;
+       }
+
        if (ukp->datalen < sizeof(*pkh))
                goto err1;
 
diff --git a/net/dns_resolver/dns_key.c b/net/dns_resolver/dns_key.c
index 8737412c7b27..e1d4d898a007 100644
--- a/net/dns_resolver/dns_key.c
+++ b/net/dns_resolver/dns_key.c
@@ -224,7 +224,7 @@ static int dns_resolver_match_preparse(struct 
key_match_data *match_data)
 static void dns_resolver_describe(const struct key *key, struct seq_file *m)
 {
        seq_puts(m, key->description);
-       if (key_is_instantiated(key)) {
+       if (key_is_positive(key)) {
                int err = PTR_ERR(key->payload.data[dns_key_error]);
 
                if (err)
diff --git a/security/keys/big_key.c b/security/keys/big_key.c
index 47c6dcab1a8e..e6288173d99d 100644
--- a/security/keys/big_key.c
+++ b/security/keys/big_key.c
@@ -245,7 +245,7 @@ void big_key_revoke(struct key *key)
 
        /* clear the quota */
        key_payload_reserve(key, 0);
-       if (key_is_instantiated(key) &&
+       if (key_is_positive(key) &&
            (size_t)key->payload.data[big_key_len] > BIG_KEY_FILE_THRESHOLD)
                vfs_truncate(path, 0);
 }
@@ -277,7 +277,7 @@ void big_key_describe(const struct key *key, struct 
seq_file *m)
 
        seq_puts(m, key->description);
 
-       if (key_is_instantiated(key))
+       if (key_is_positive(key))
                seq_printf(m, ": %zu [%s]",
                           datalen,
                           datalen > BIG_KEY_FILE_THRESHOLD ? "file" : "buff");
diff --git a/security/keys/encrypted-keys/encrypted.c 
b/security/keys/encrypted-keys/encrypted.c
index 8d9330aba77e..a871159bf03c 100644
--- a/security/keys/encrypted-keys/encrypted.c
+++ b/security/keys/encrypted-keys/encrypted.c
@@ -315,6 +315,13 @@ static struct key *request_user_key(const char 
*master_desc, const u8 **master_k
 
        down_read(&ukey->sem);
        upayload = user_key_payload(ukey);
+       if (!upayload) {
+               /* key was revoked before we acquired its semaphore */
+               up_read(&ukey->sem);
+               key_put(ukey);
+               ukey = ERR_PTR(-EKEYREVOKED);
+               goto error;
+       }
        *master_key = upayload->data;
        *master_keylen = upayload->datalen;
 error:
@@ -867,7 +874,7 @@ static int encrypted_update(struct key *key, struct 
key_preparsed_payload *prep)
        size_t datalen = prep->datalen;
        int ret = 0;
 
-       if (test_bit(KEY_FLAG_NEGATIVE, &key->flags))
+       if (key_is_negative(key))
                return -ENOKEY;
        if (datalen <= 0 || datalen > 32767 || !prep->data)
                return -EINVAL;
diff --git a/security/keys/gc.c b/security/keys/gc.c
index 9cb4fe4478a1..1659094d684d 100644
--- a/security/keys/gc.c
+++ b/security/keys/gc.c
@@ -129,15 +129,15 @@ static noinline void key_gc_unused_keys(struct list_head 
*keys)
        while (!list_empty(keys)) {
                struct key *key =
                        list_entry(keys->next, struct key, graveyard_link);
+               short state = key->state;
+
                list_del(&key->graveyard_link);
 
                kdebug("- %u", key->serial);
                key_check(key);
 
                /* Throw away the key data if the key is instantiated */
-               if (test_bit(KEY_FLAG_INSTANTIATED, &key->flags) &&
-                   !test_bit(KEY_FLAG_NEGATIVE, &key->flags) &&
-                   key->type->destroy)
+               if (state == KEY_IS_POSITIVE && key->type->destroy)
                        key->type->destroy(key);
 
                security_key_free(key);
@@ -151,7 +151,7 @@ static noinline void key_gc_unused_keys(struct list_head 
*keys)
                }
 
                atomic_dec(&key->user->nkeys);
-               if (test_bit(KEY_FLAG_INSTANTIATED, &key->flags))
+               if (state != KEY_IS_UNINSTANTIATED)
                        atomic_dec(&key->user->nikeys);
 
                key_user_put(key->user);
diff --git a/security/keys/key.c b/security/keys/key.c
index 135e1eb7e468..7dc59069e8c7 100644
--- a/security/keys/key.c
+++ b/security/keys/key.c
@@ -400,6 +400,18 @@ int key_payload_reserve(struct key *key, size_t datalen)
 }
 EXPORT_SYMBOL(key_payload_reserve);
 
+/*
+ * Change the key state to being instantiated.
+ */
+static void mark_key_instantiated(struct key *key, int reject_error)
+{
+       /* Commit the payload before setting the state; barrier versus
+        * key_read_state().
+        */
+       smp_store_release(&key->state,
+                         (reject_error < 0) ? reject_error : KEY_IS_POSITIVE);
+}
+
 /*
  * Instantiate a key and link it into the target keyring atomically.  Must be
  * called with the target keyring's semaphore writelocked.  The target key's
@@ -423,14 +435,14 @@ static int __key_instantiate_and_link(struct key *key,
        mutex_lock(&key_construction_mutex);
 
        /* can't instantiate twice */
-       if (!test_bit(KEY_FLAG_INSTANTIATED, &key->flags)) {
+       if (key->state == KEY_IS_UNINSTANTIATED) {
                /* instantiate the key */
                ret = key->type->instantiate(key, prep);
 
                if (ret == 0) {
                        /* mark the key as being instantiated */
                        atomic_inc(&key->user->nikeys);
-                       set_bit(KEY_FLAG_INSTANTIATED, &key->flags);
+                       mark_key_instantiated(key, 0);
 
                        if (test_and_clear_bit(KEY_FLAG_USER_CONSTRUCT, 
&key->flags))
                                awaken = 1;
@@ -572,13 +584,10 @@ int key_reject_and_link(struct key *key,
        mutex_lock(&key_construction_mutex);
 
        /* can't instantiate twice */
-       if (!test_bit(KEY_FLAG_INSTANTIATED, &key->flags)) {
+       if (key->state == KEY_IS_UNINSTANTIATED) {
                /* mark the key as being negatively instantiated */
                atomic_inc(&key->user->nikeys);
-               key->reject_error = -error;
-               smp_wmb();
-               set_bit(KEY_FLAG_NEGATIVE, &key->flags);
-               set_bit(KEY_FLAG_INSTANTIATED, &key->flags);
+               mark_key_instantiated(key, -error);
                now = current_kernel_time();
                key->expiry = now.tv_sec + timeout;
                key_schedule_gc(key->expiry + key_gc_delay);
@@ -750,8 +759,8 @@ static inline key_ref_t __key_update(key_ref_t key_ref,
 
        ret = key->type->update(key, prep);
        if (ret == 0)
-               /* updating a negative key instantiates it */
-               clear_bit(KEY_FLAG_NEGATIVE, &key->flags);
+               /* Updating a negative key positively instantiates it */
+               mark_key_instantiated(key, 0);
 
        up_write(&key->sem);
 
@@ -935,6 +944,16 @@ key_ref_t key_create_or_update(key_ref_t keyring_ref,
         */
        __key_link_end(keyring, &index_key, edit);
 
+       key = key_ref_to_ptr(key_ref);
+       if (test_bit(KEY_FLAG_USER_CONSTRUCT, &key->flags)) {
+               ret = wait_for_key_construction(key, true);
+               if (ret < 0) {
+                       key_ref_put(key_ref);
+                       key_ref = ERR_PTR(ret);
+                       goto error_free_prep;
+               }
+       }
+
        key_ref = __key_update(key_ref, &prep);
        goto error_free_prep;
 }
@@ -985,8 +1004,8 @@ int key_update(key_ref_t key_ref, const void *payload, 
size_t plen)
 
        ret = key->type->update(key, &prep);
        if (ret == 0)
-               /* updating a negative key instantiates it */
-               clear_bit(KEY_FLAG_NEGATIVE, &key->flags);
+               /* Updating a negative key positively instantiates it */
+               mark_key_instantiated(key, 0);
 
        up_write(&key->sem);
 
diff --git a/security/keys/keyctl.c b/security/keys/keyctl.c
index 1302cb398346..797edcf1d424 100644
--- a/security/keys/keyctl.c
+++ b/security/keys/keyctl.c
@@ -766,10 +766,9 @@ long keyctl_read_key(key_serial_t keyid, char __user 
*buffer, size_t buflen)
 
        key = key_ref_to_ptr(key_ref);
 
-       if (test_bit(KEY_FLAG_NEGATIVE, &key->flags)) {
-               ret = -ENOKEY;
-               goto error2;
-       }
+       ret = key_read_state(key);
+       if (ret < 0)
+               goto error2; /* Negatively instantiated */
 
        /* see if we can read it directly */
        ret = key_permission(key_ref, KEY_NEED_READ);
@@ -901,7 +900,7 @@ long keyctl_chown_key(key_serial_t id, uid_t user, gid_t 
group)
                atomic_dec(&key->user->nkeys);
                atomic_inc(&newowner->nkeys);
 
-               if (test_bit(KEY_FLAG_INSTANTIATED, &key->flags)) {
+               if (key->state != KEY_IS_UNINSTANTIATED) {
                        atomic_dec(&key->user->nikeys);
                        atomic_inc(&newowner->nikeys);
                }
diff --git a/security/keys/keyring.c b/security/keys/keyring.c
index a86d0ae1773c..32969f630438 100644
--- a/security/keys/keyring.c
+++ b/security/keys/keyring.c
@@ -407,7 +407,7 @@ static void keyring_describe(const struct key *keyring, 
struct seq_file *m)
        else
                seq_puts(m, "[anon]");
 
-       if (key_is_instantiated(keyring)) {
+       if (key_is_positive(keyring)) {
                if (keyring->keys.nr_leaves_on_tree != 0)
                        seq_printf(m, ": %lu", keyring->keys.nr_leaves_on_tree);
                else
@@ -546,7 +546,8 @@ static int keyring_search_iterator(const void *object, void 
*iterator_data)
 {
        struct keyring_search_context *ctx = iterator_data;
        const struct key *key = keyring_ptr_to_key(object);
-       unsigned long kflags = key->flags;
+       unsigned long kflags = READ_ONCE(key->flags);
+       short state = READ_ONCE(key->state);
 
        kenter("{%d}", key->serial);
 
@@ -590,9 +591,8 @@ static int keyring_search_iterator(const void *object, void 
*iterator_data)
 
        if (ctx->flags & KEYRING_SEARCH_DO_STATE_CHECK) {
                /* we set a different error code if we pass a negative key */
-               if (kflags & (1 << KEY_FLAG_NEGATIVE)) {
-                       smp_rmb();
-                       ctx->result = ERR_PTR(key->reject_error);
+               if (state < 0) {
+                       ctx->result = ERR_PTR(state);
                        kleave(" = %d [neg]", ctx->skipped_ret);
                        goto skipped;
                }
diff --git a/security/keys/proc.c b/security/keys/proc.c
index b9f531c9e4fa..036128682463 100644
--- a/security/keys/proc.c
+++ b/security/keys/proc.c
@@ -182,6 +182,7 @@ static int proc_keys_show(struct seq_file *m, void *v)
        unsigned long timo;
        key_ref_t key_ref, skey_ref;
        char xbuf[16];
+       short state;
        int rc;
 
        struct keyring_search_context ctx = {
@@ -240,17 +241,19 @@ static int proc_keys_show(struct seq_file *m, void *v)
                        sprintf(xbuf, "%luw", timo / (60*60*24*7));
        }
 
+       state = key_read_state(key);
+
 #define showflag(KEY, LETTER, FLAG) \
        (test_bit(FLAG, &(KEY)->flags) ? LETTER : '-')
 
        seq_printf(m, "%08x %c%c%c%c%c%c%c %5d %4s %08x %5d %5d %-9.9s ",
                   key->serial,
-                  showflag(key, 'I', KEY_FLAG_INSTANTIATED),
+                  state != KEY_IS_UNINSTANTIATED ? 'I' : '-',
                   showflag(key, 'R', KEY_FLAG_REVOKED),
                   showflag(key, 'D', KEY_FLAG_DEAD),
                   showflag(key, 'Q', KEY_FLAG_IN_QUOTA),
                   showflag(key, 'U', KEY_FLAG_USER_CONSTRUCT),
-                  showflag(key, 'N', KEY_FLAG_NEGATIVE),
+                  state < 0 ? 'N' : '-',
                   showflag(key, 'i', KEY_FLAG_INVALIDATED),
                   atomic_read(&key->usage),
                   xbuf,
diff --git a/security/keys/process_keys.c b/security/keys/process_keys.c
index ce45c78cf0a2..2d35d71d7d9a 100644
--- a/security/keys/process_keys.c
+++ b/security/keys/process_keys.c
@@ -729,7 +729,7 @@ key_ref_t lookup_user_key(key_serial_t id, unsigned long 
lflags,
 
        ret = -EIO;
        if (!(lflags & KEY_LOOKUP_PARTIAL) &&
-           !test_bit(KEY_FLAG_INSTANTIATED, &key->flags))
+           key_read_state(key) == KEY_IS_UNINSTANTIATED)
                goto invalid_key;
 
        /* check the permissions */
diff --git a/security/keys/request_key.c b/security/keys/request_key.c
index 43affcf10b22..5030fcf23681 100644
--- a/security/keys/request_key.c
+++ b/security/keys/request_key.c
@@ -594,10 +594,9 @@ int wait_for_key_construction(struct key *key, bool intr)
                          intr ? TASK_INTERRUPTIBLE : TASK_UNINTERRUPTIBLE);
        if (ret)
                return -ERESTARTSYS;
-       if (test_bit(KEY_FLAG_NEGATIVE, &key->flags)) {
-               smp_rmb();
-               return key->reject_error;
-       }
+       ret = key_read_state(key);
+       if (ret < 0)
+               return ret;
        return key_validate(key);
 }
 EXPORT_SYMBOL(wait_for_key_construction);
diff --git a/security/keys/request_key_auth.c b/security/keys/request_key_auth.c
index 9db8b4a82787..ba74a0b4d1cb 100644
--- a/security/keys/request_key_auth.c
+++ b/security/keys/request_key_auth.c
@@ -73,7 +73,7 @@ static void request_key_auth_describe(const struct key *key,
 
        seq_puts(m, "key:");
        seq_puts(m, key->description);
-       if (key_is_instantiated(key))
+       if (key_is_positive(key))
                seq_printf(m, " pid:%d ci:%zu", rka->pid, rka->callout_len);
 }
 
diff --git a/security/keys/trusted.c b/security/keys/trusted.c
index 90d61751ff12..f4db42e669e9 100644
--- a/security/keys/trusted.c
+++ b/security/keys/trusted.c
@@ -1067,7 +1067,7 @@ static int trusted_update(struct key *key, struct 
key_preparsed_payload *prep)
        char *datablob;
        int ret = 0;
 
-       if (test_bit(KEY_FLAG_NEGATIVE, &key->flags))
+       if (key_is_negative(key))
                return -ENOKEY;
        p = key->payload.data[0];
        if (!p->migratable)
diff --git a/security/keys/user_defined.c b/security/keys/user_defined.c
index 66b1840b4110..3dc2607211cc 100644
--- a/security/keys/user_defined.c
+++ b/security/keys/user_defined.c
@@ -106,7 +106,7 @@ int user_update(struct key *key, struct 
key_preparsed_payload *prep)
 
        /* attach the new data, displacing the old */
        key->expiry = prep->expiry;
-       if (!test_bit(KEY_FLAG_NEGATIVE, &key->flags))
+       if (key_is_positive(key))
                zap = rcu_dereference_key(key);
        rcu_assign_keypointer(key, prep->payload.data[0]);
        prep->payload.data[0] = NULL;
@@ -154,7 +154,7 @@ EXPORT_SYMBOL_GPL(user_destroy);
 void user_describe(const struct key *key, struct seq_file *m)
 {
        seq_puts(m, key->description);
-       if (key_is_instantiated(key))
+       if (key_is_positive(key))
                seq_printf(m, ": %u", key->datalen);
 }
 
diff --git a/sound/core/seq/seq_lock.c b/sound/core/seq/seq_lock.c
index 12ba83367b1b..ba5752ee9af3 100644
--- a/sound/core/seq/seq_lock.c
+++ b/sound/core/seq/seq_lock.c
@@ -23,8 +23,6 @@
 #include <sound/core.h>
 #include "seq_lock.h"
 
-#if defined(CONFIG_SMP) || defined(CONFIG_SND_DEBUG)
-
 /* wait until all locks are released */
 void snd_use_lock_sync_helper(snd_use_lock_t *lockp, const char *file, int 
line)
 {
@@ -42,5 +40,3 @@ void snd_use_lock_sync_helper(snd_use_lock_t *lockp, const 
char *file, int line)
 }
 
 EXPORT_SYMBOL(snd_use_lock_sync_helper);
-
-#endif
diff --git a/sound/core/seq/seq_lock.h b/sound/core/seq/seq_lock.h
index 54044bc2c9ef..ac38031c370e 100644
--- a/sound/core/seq/seq_lock.h
+++ b/sound/core/seq/seq_lock.h
@@ -3,8 +3,6 @@
 
 #include <linux/sched.h>
 
-#if defined(CONFIG_SMP) || defined(CONFIG_SND_DEBUG)
-
 typedef atomic_t snd_use_lock_t;
 
 /* initialize lock */
@@ -20,14 +18,4 @@ typedef atomic_t snd_use_lock_t;
 void snd_use_lock_sync_helper(snd_use_lock_t *lock, const char *file, int 
line);
 #define snd_use_lock_sync(lockp) snd_use_lock_sync_helper(lockp, 
__BASE_FILE__, __LINE__)
 
-#else /* SMP || CONFIG_SND_DEBUG */
-
-typedef spinlock_t snd_use_lock_t;     /* dummy */
-#define snd_use_lock_init(lockp) /**/
-#define snd_use_lock_use(lockp) /**/
-#define snd_use_lock_free(lockp) /**/
-#define snd_use_lock_sync(lockp) /**/
-
-#endif /* SMP || CONFIG_SND_DEBUG */
-
 #endif /* __SND_SEQ_LOCK_H */
diff --git a/sound/hda/hdac_controller.c b/sound/hda/hdac_controller.c
index 0f41257d339e..8761877207ec 100644
--- a/sound/hda/hdac_controller.c
+++ b/sound/hda/hdac_controller.c
@@ -284,6 +284,11 @@ int snd_hdac_bus_parse_capabilities(struct hdac_bus *bus)
                dev_dbg(bus->dev, "HDA capability ID: 0x%x\n",
                        (cur_cap & AZX_CAP_HDR_ID_MASK) >> AZX_CAP_HDR_ID_OFF);
 
+               if (cur_cap == -1) {
+                       dev_dbg(bus->dev, "Invalid capability reg read\n");
+                       break;
+               }
+
                switch ((cur_cap & AZX_CAP_HDR_ID_MASK) >> AZX_CAP_HDR_ID_OFF) {
                case AZX_ML_CAP_ID:
                        dev_dbg(bus->dev, "Found ML capability\n");
diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c
index 9913be8532ab..e46c561a8c90 100644
--- a/sound/pci/hda/hda_codec.c
+++ b/sound/pci/hda/hda_codec.c
@@ -1755,7 +1755,7 @@ static int get_kctl_0dB_offset(struct hda_codec *codec,
                        return -1;
                if (*step_to_check && *step_to_check != step) {
                        codec_err(codec, "Mismatching dB step for vmaster slave 
(%d!=%d)\n",
--                                 *step_to_check, step);
+                                  *step_to_check, step);
                        return -1;
                }
                *step_to_check = step;
diff --git a/sound/usb/quirks.c b/sound/usb/quirks.c
index 286efc3a6116..7613b9e07b5c 100644
--- a/sound/usb/quirks.c
+++ b/sound/usb/quirks.c
@@ -1352,6 +1352,7 @@ u64 snd_usb_interface_dsd_format_quirks(struct 
snd_usb_audio *chip,
        case USB_ID(0x20b1, 0x2008): /* Matrix Audio X-Sabre */
        case USB_ID(0x20b1, 0x300a): /* Matrix Audio Mini-i Pro */
        case USB_ID(0x22d9, 0x0416): /* OPPO HA-1 */
+       case USB_ID(0x2772, 0x0230): /* Pro-Ject Pre Box S2 Digital */
                if (fp->altsetting == 2)
                        return SNDRV_PCM_FMTBIT_DSD_U32_BE;
                break;

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