commit: 5da38e54b97178f44ef7337f5a1021113c85a9ca Author: Mike Pagano <mpagano <AT> gentoo <DOT> org> AuthorDate: Fri May 8 12:02:58 2015 +0000 Commit: Mike Pagano <mpagano <AT> gentoo <DOT> org> CommitDate: Fri May 8 12:02:58 2015 +0000 URL: https://gitweb.gentoo.org/proj/linux-patches.git/commit/?id=5da38e54
Linux patch 3.14.41 0000_README | 4 + 1040_linux-3.14.41.patch | 3586 ++++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 3590 insertions(+) diff --git a/0000_README b/0000_README index f33de99..131b883 100644 --- a/0000_README +++ b/0000_README @@ -202,6 +202,10 @@ Patch: 1039_linux-3.14.40.patch From: http://www.kernel.org Desc: Linux 3.14.40 +Patch: 1040_linux-3.14.41.patch +From: http://www.kernel.org +Desc: Linux 3.14.41 + Patch: 1500_XATTR_USER_PREFIX.patch From: https://bugs.gentoo.org/show_bug.cgi?id=470644 Desc: Support for namespace user.pax.* on tmpfs. diff --git a/1040_linux-3.14.41.patch b/1040_linux-3.14.41.patch new file mode 100644 index 0000000..5638eff --- /dev/null +++ b/1040_linux-3.14.41.patch @@ -0,0 +1,3586 @@ +diff --git a/Makefile b/Makefile +index 070e0ebb9231..7a60d4a1301c 100644 +--- a/Makefile ++++ b/Makefile +@@ -1,6 +1,6 @@ + VERSION = 3 + PATCHLEVEL = 14 +-SUBLEVEL = 40 ++SUBLEVEL = 41 + EXTRAVERSION = + NAME = Remembering Coco + +diff --git a/arch/arm/boot/dts/dove.dtsi b/arch/arm/boot/dts/dove.dtsi +index 187fd46b7b5e..355117cbbf4a 100644 +--- a/arch/arm/boot/dts/dove.dtsi ++++ b/arch/arm/boot/dts/dove.dtsi +@@ -154,7 +154,7 @@ + + uart2: serial@12200 { + compatible = "ns16550a"; +- reg = <0x12000 0x100>; ++ reg = <0x12200 0x100>; + reg-shift = <2>; + interrupts = <9>; + clocks = <&core_clk 0>; +@@ -163,7 +163,7 @@ + + uart3: serial@12300 { + compatible = "ns16550a"; +- reg = <0x12100 0x100>; ++ reg = <0x12300 0x100>; + reg-shift = <2>; + interrupts = <10>; + clocks = <&core_clk 0>; +diff --git a/arch/arm/include/asm/elf.h b/arch/arm/include/asm/elf.h +index f4b46d39b9cf..051b7269e639 100644 +--- a/arch/arm/include/asm/elf.h ++++ b/arch/arm/include/asm/elf.h +@@ -114,7 +114,7 @@ int dump_task_regs(struct task_struct *t, elf_gregset_t *elfregs); + the loader. We need to make sure that it is out of the way of the program + that it will "exec", and that there is sufficient room for the brk. */ + +-#define ELF_ET_DYN_BASE (2 * TASK_SIZE / 3) ++#define ELF_ET_DYN_BASE (TASK_SIZE / 3 * 2) + + /* When the program starts, a1 contains a pointer to a function to be + registered with atexit, as per the SVR4 ABI. A value of 0 means we +diff --git a/arch/arm/mach-s3c64xx/crag6410.h b/arch/arm/mach-s3c64xx/crag6410.h +index 7bc66682687e..dcbe17f5e5f8 100644 +--- a/arch/arm/mach-s3c64xx/crag6410.h ++++ b/arch/arm/mach-s3c64xx/crag6410.h +@@ -14,6 +14,7 @@ + #include <mach/gpio-samsung.h> + + #define GLENFARCLAS_PMIC_IRQ_BASE IRQ_BOARD_START ++#define BANFF_PMIC_IRQ_BASE (IRQ_BOARD_START + 64) + + #define PCA935X_GPIO_BASE GPIO_BOARD_START + #define CODEC_GPIO_BASE (GPIO_BOARD_START + 8) +diff --git a/arch/arm/mach-s3c64xx/mach-crag6410.c b/arch/arm/mach-s3c64xx/mach-crag6410.c +index 3df3c372ee1f..66b95c466497 100644 +--- a/arch/arm/mach-s3c64xx/mach-crag6410.c ++++ b/arch/arm/mach-s3c64xx/mach-crag6410.c +@@ -555,6 +555,7 @@ static struct wm831x_touch_pdata touch_pdata = { + + static struct wm831x_pdata crag_pmic_pdata = { + .wm831x_num = 1, ++ .irq_base = BANFF_PMIC_IRQ_BASE, + .gpio_base = BANFF_PMIC_GPIO_BASE, + .soft_shutdown = true, + +diff --git a/arch/arm64/kernel/vdso/Makefile b/arch/arm64/kernel/vdso/Makefile +index 6d20b7d162d8..a268a9af0c2d 100644 +--- a/arch/arm64/kernel/vdso/Makefile ++++ b/arch/arm64/kernel/vdso/Makefile +@@ -43,7 +43,7 @@ $(obj)/vdso-offsets.h: $(obj)/vdso.so.dbg FORCE + $(call if_changed,vdsosym) + + # Assembly rules for the .S files +-$(obj-vdso): %.o: %.S ++$(obj-vdso): %.o: %.S FORCE + $(call if_changed_dep,vdsoas) + + # Actual build commands +diff --git a/arch/c6x/kernel/time.c b/arch/c6x/kernel/time.c +index 356ee84cad95..04845aaf5985 100644 +--- a/arch/c6x/kernel/time.c ++++ b/arch/c6x/kernel/time.c +@@ -49,7 +49,7 @@ u64 sched_clock(void) + return (tsc * sched_clock_multiplier) >> SCHED_CLOCK_SHIFT; + } + +-void time_init(void) ++void __init time_init(void) + { + u64 tmp = (u64)NSEC_PER_SEC << SCHED_CLOCK_SHIFT; + +diff --git a/arch/mips/include/asm/suspend.h b/arch/mips/include/asm/suspend.h +deleted file mode 100644 +index 3adac3b53d19..000000000000 +--- a/arch/mips/include/asm/suspend.h ++++ /dev/null +@@ -1,7 +0,0 @@ +-#ifndef __ASM_SUSPEND_H +-#define __ASM_SUSPEND_H +- +-/* References to section boundaries */ +-extern const void __nosave_begin, __nosave_end; +- +-#endif /* __ASM_SUSPEND_H */ +diff --git a/arch/mips/power/cpu.c b/arch/mips/power/cpu.c +index 521e5963df05..2129e67723ff 100644 +--- a/arch/mips/power/cpu.c ++++ b/arch/mips/power/cpu.c +@@ -7,7 +7,7 @@ + * Author: Hu Hongbing <[email protected]> + * Wu Zhangjin <[email protected]> + */ +-#include <asm/suspend.h> ++#include <asm/sections.h> + #include <asm/fpu.h> + #include <asm/dsp.h> + +diff --git a/arch/mips/power/hibernate.S b/arch/mips/power/hibernate.S +index 32a7c828f073..e7567c8a9e79 100644 +--- a/arch/mips/power/hibernate.S ++++ b/arch/mips/power/hibernate.S +@@ -30,6 +30,8 @@ LEAF(swsusp_arch_suspend) + END(swsusp_arch_suspend) + + LEAF(swsusp_arch_resume) ++ /* Avoid TLB mismatch during and after kernel resume */ ++ jal local_flush_tlb_all + PTR_L t0, restore_pblist + 0: + PTR_L t1, PBE_ADDRESS(t0) /* source */ +@@ -43,7 +45,6 @@ LEAF(swsusp_arch_resume) + bne t1, t3, 1b + PTR_L t0, PBE_NEXT(t0) + bnez t0, 0b +- jal local_flush_tlb_all /* Avoid TLB mismatch after kernel resume */ + PTR_LA t0, saved_regs + PTR_L ra, PT_R31(t0) + PTR_L sp, PT_R29(t0) +diff --git a/arch/powerpc/kernel/cacheinfo.c b/arch/powerpc/kernel/cacheinfo.c +index 2912b8787aa4..3eb36cea324c 100644 +--- a/arch/powerpc/kernel/cacheinfo.c ++++ b/arch/powerpc/kernel/cacheinfo.c +@@ -61,12 +61,22 @@ struct cache_type_info { + }; + + /* These are used to index the cache_type_info array. */ +-#define CACHE_TYPE_UNIFIED 0 +-#define CACHE_TYPE_INSTRUCTION 1 +-#define CACHE_TYPE_DATA 2 ++#define CACHE_TYPE_UNIFIED 0 /* cache-size, cache-block-size, etc. */ ++#define CACHE_TYPE_UNIFIED_D 1 /* d-cache-size, d-cache-block-size, etc */ ++#define CACHE_TYPE_INSTRUCTION 2 ++#define CACHE_TYPE_DATA 3 + + static const struct cache_type_info cache_type_info[] = { + { ++ /* Embedded systems that use cache-size, cache-block-size, ++ * etc. for the Unified (typically L2) cache. */ ++ .name = "Unified", ++ .size_prop = "cache-size", ++ .line_size_props = { "cache-line-size", ++ "cache-block-size", }, ++ .nr_sets_prop = "cache-sets", ++ }, ++ { + /* PowerPC Processor binding says the [di]-cache-* + * must be equal on unified caches, so just use + * d-cache properties. */ +@@ -293,7 +303,8 @@ static struct cache *cache_find_first_sibling(struct cache *cache) + { + struct cache *iter; + +- if (cache->type == CACHE_TYPE_UNIFIED) ++ if (cache->type == CACHE_TYPE_UNIFIED || ++ cache->type == CACHE_TYPE_UNIFIED_D) + return cache; + + list_for_each_entry(iter, &cache_list, list) +@@ -324,16 +335,29 @@ static bool cache_node_is_unified(const struct device_node *np) + return of_get_property(np, "cache-unified", NULL); + } + +-static struct cache *cache_do_one_devnode_unified(struct device_node *node, +- int level) ++/* ++ * Unified caches can have two different sets of tags. Most embedded ++ * use cache-size, etc. for the unified cache size, but open firmware systems ++ * use d-cache-size, etc. Check on initialization for which type we have, and ++ * return the appropriate structure type. Assume it's embedded if it isn't ++ * open firmware. If it's yet a 3rd type, then there will be missing entries ++ * in /sys/devices/system/cpu/cpu0/cache/index2/, and this code will need ++ * to be extended further. ++ */ ++static int cache_is_unified_d(const struct device_node *np) + { +- struct cache *cache; ++ return of_get_property(np, ++ cache_type_info[CACHE_TYPE_UNIFIED_D].size_prop, NULL) ? ++ CACHE_TYPE_UNIFIED_D : CACHE_TYPE_UNIFIED; ++} + ++/* ++ */ ++static struct cache *cache_do_one_devnode_unified(struct device_node *node, int level) ++{ + pr_debug("creating L%d ucache for %s\n", level, node->full_name); + +- cache = new_cache(CACHE_TYPE_UNIFIED, level, node); +- +- return cache; ++ return new_cache(cache_is_unified_d(node), level, node); + } + + static struct cache *cache_do_one_devnode_split(struct device_node *node, +diff --git a/arch/powerpc/kernel/suspend.c b/arch/powerpc/kernel/suspend.c +index 0167d53da30c..a531154cc0f3 100644 +--- a/arch/powerpc/kernel/suspend.c ++++ b/arch/powerpc/kernel/suspend.c +@@ -9,9 +9,7 @@ + + #include <linux/mm.h> + #include <asm/page.h> +- +-/* References to section boundaries */ +-extern const void __nosave_begin, __nosave_end; ++#include <asm/sections.h> + + /* + * pfn_is_nosave - check if given pfn is in the 'nosave' section +diff --git a/arch/powerpc/perf/callchain.c b/arch/powerpc/perf/callchain.c +index 2396dda282cd..ead55351b254 100644 +--- a/arch/powerpc/perf/callchain.c ++++ b/arch/powerpc/perf/callchain.c +@@ -243,7 +243,7 @@ static void perf_callchain_user_64(struct perf_callchain_entry *entry, + sp = regs->gpr[1]; + perf_callchain_store(entry, next_ip); + +- for (;;) { ++ while (entry->nr < PERF_MAX_STACK_DEPTH) { + fp = (unsigned long __user *) sp; + if (!valid_user_sp(sp, 1) || read_user_stack_64(fp, &next_sp)) + return; +diff --git a/arch/powerpc/platforms/cell/iommu.c b/arch/powerpc/platforms/cell/iommu.c +index 2b90ff8a93be..59ef76c5f4f4 100644 +--- a/arch/powerpc/platforms/cell/iommu.c ++++ b/arch/powerpc/platforms/cell/iommu.c +@@ -197,7 +197,7 @@ static int tce_build_cell(struct iommu_table *tbl, long index, long npages, + + io_pte = (unsigned long *)tbl->it_base + (index - tbl->it_offset); + +- for (i = 0; i < npages; i++, uaddr += tbl->it_page_shift) ++ for (i = 0; i < npages; i++, uaddr += (1 << tbl->it_page_shift)) + io_pte[i] = base_pte | (__pa(uaddr) & CBE_IOPTE_RPN_Mask); + + mb(); +diff --git a/arch/s390/kernel/suspend.c b/arch/s390/kernel/suspend.c +index a7a7537ce1e7..d3236c9e226b 100644 +--- a/arch/s390/kernel/suspend.c ++++ b/arch/s390/kernel/suspend.c +@@ -13,14 +13,10 @@ + #include <asm/ipl.h> + #include <asm/cio.h> + #include <asm/pci.h> ++#include <asm/sections.h> + #include "entry.h" + + /* +- * References to section boundaries +- */ +-extern const void __nosave_begin, __nosave_end; +- +-/* + * The restore of the saved pages in an hibernation image will set + * the change and referenced bits in the storage key for each page. + * Overindication of the referenced bits after an hibernation cycle +@@ -142,6 +138,8 @@ int pfn_is_nosave(unsigned long pfn) + { + unsigned long nosave_begin_pfn = PFN_DOWN(__pa(&__nosave_begin)); + unsigned long nosave_end_pfn = PFN_DOWN(__pa(&__nosave_end)); ++ unsigned long eshared_pfn = PFN_DOWN(__pa(&_eshared)) - 1; ++ unsigned long stext_pfn = PFN_DOWN(__pa(&_stext)); + + /* Always save lowcore pages (LC protection might be enabled). */ + if (pfn <= LC_PAGES) +@@ -149,6 +147,8 @@ int pfn_is_nosave(unsigned long pfn) + if (pfn >= nosave_begin_pfn && pfn < nosave_end_pfn) + return 1; + /* Skip memory holes and read-only pages (NSS, DCSS, ...). */ ++ if (pfn >= stext_pfn && pfn <= eshared_pfn) ++ return ipl_info.type == IPL_TYPE_NSS ? 1 : 0; + if (tprot(PFN_PHYS(pfn))) + return 1; + return 0; +diff --git a/arch/s390/kvm/priv.c b/arch/s390/kvm/priv.c +index 75beea632a10..3588f2f37986 100644 +--- a/arch/s390/kvm/priv.c ++++ b/arch/s390/kvm/priv.c +@@ -414,6 +414,7 @@ static void handle_stsi_3_2_2(struct kvm_vcpu *vcpu, struct sysinfo_3_2_2 *mem) + for (n = mem->count - 1; n > 0 ; n--) + memcpy(&mem->vm[n], &mem->vm[n - 1], sizeof(mem->vm[0])); + ++ memset(&mem->vm[0], 0, sizeof(mem->vm[0])); + mem->vm[0].cpus_total = cpus; + mem->vm[0].cpus_configured = cpus; + mem->vm[0].cpus_standby = 0; +diff --git a/arch/sh/include/asm/sections.h b/arch/sh/include/asm/sections.h +index 1b6199740e98..7a99e6af6372 100644 +--- a/arch/sh/include/asm/sections.h ++++ b/arch/sh/include/asm/sections.h +@@ -3,7 +3,6 @@ + + #include <asm-generic/sections.h> + +-extern long __nosave_begin, __nosave_end; + extern long __machvec_start, __machvec_end; + extern char __uncached_start, __uncached_end; + extern char __start_eh_frame[], __stop_eh_frame[]; +diff --git a/arch/sparc/power/hibernate.c b/arch/sparc/power/hibernate.c +index 42b0b8ce699a..17bd2e167e07 100644 +--- a/arch/sparc/power/hibernate.c ++++ b/arch/sparc/power/hibernate.c +@@ -9,11 +9,9 @@ + #include <asm/hibernate.h> + #include <asm/visasm.h> + #include <asm/page.h> ++#include <asm/sections.h> + #include <asm/tlb.h> + +-/* References to section boundaries */ +-extern const void __nosave_begin, __nosave_end; +- + struct saved_context saved_context; + + /* +diff --git a/arch/unicore32/include/mach/pm.h b/arch/unicore32/include/mach/pm.h +index 4dcd34ae194c..77b522694e74 100644 +--- a/arch/unicore32/include/mach/pm.h ++++ b/arch/unicore32/include/mach/pm.h +@@ -36,8 +36,5 @@ extern int puv3_pm_enter(suspend_state_t state); + /* Defined in hibernate_asm.S */ + extern int restore_image(pgd_t *resume_pg_dir, struct pbe *restore_pblist); + +-/* References to section boundaries */ +-extern const void __nosave_begin, __nosave_end; +- + extern struct pbe *restore_pblist; + #endif +diff --git a/arch/unicore32/kernel/hibernate.c b/arch/unicore32/kernel/hibernate.c +index d75ef8b6cb56..9969ec374abb 100644 +--- a/arch/unicore32/kernel/hibernate.c ++++ b/arch/unicore32/kernel/hibernate.c +@@ -18,6 +18,7 @@ + #include <asm/page.h> + #include <asm/pgtable.h> + #include <asm/pgalloc.h> ++#include <asm/sections.h> + #include <asm/suspend.h> + + #include "mach/pm.h" +diff --git a/arch/x86/include/asm/mwait.h b/arch/x86/include/asm/mwait.h +index 1da25a5f96f9..3ba047cbcf5b 100644 +--- a/arch/x86/include/asm/mwait.h ++++ b/arch/x86/include/asm/mwait.h +@@ -30,6 +30,14 @@ static inline void __mwait(unsigned long eax, unsigned long ecx) + :: "a" (eax), "c" (ecx)); + } + ++static inline void __sti_mwait(unsigned long eax, unsigned long ecx) ++{ ++ trace_hardirqs_on(); ++ /* "mwait %eax, %ecx;" */ ++ asm volatile("sti; .byte 0x0f, 0x01, 0xc9;" ++ :: "a" (eax), "c" (ecx)); ++} ++ + /* + * This uses new MONITOR/MWAIT instructions on P4 processors with PNI, + * which can obviate IPI to trigger checking of need_resched. +diff --git a/arch/x86/kernel/process.c b/arch/x86/kernel/process.c +index 3fb8d95ab8b5..1a1ff42094a7 100644 +--- a/arch/x86/kernel/process.c ++++ b/arch/x86/kernel/process.c +@@ -28,6 +28,7 @@ + #include <asm/fpu-internal.h> + #include <asm/debugreg.h> + #include <asm/nmi.h> ++#include <asm/mwait.h> + + /* + * per-CPU TSS segments. Threads are completely 'soft' on Linux, +@@ -398,6 +399,52 @@ static void amd_e400_idle(void) + default_idle(); + } + ++/* ++ * Intel Core2 and older machines prefer MWAIT over HALT for C1. ++ * We can't rely on cpuidle installing MWAIT, because it will not load ++ * on systems that support only C1 -- so the boot default must be MWAIT. ++ * ++ * Some AMD machines are the opposite, they depend on using HALT. ++ * ++ * So for default C1, which is used during boot until cpuidle loads, ++ * use MWAIT-C1 on Intel HW that has it, else use HALT. ++ */ ++static int prefer_mwait_c1_over_halt(const struct cpuinfo_x86 *c) ++{ ++ if (c->x86_vendor != X86_VENDOR_INTEL) ++ return 0; ++ ++ if (!cpu_has(c, X86_FEATURE_MWAIT)) ++ return 0; ++ ++ return 1; ++} ++ ++/* ++ * MONITOR/MWAIT with no hints, used for default default C1 state. ++ * This invokes MWAIT with interrutps enabled and no flags, ++ * which is backwards compatible with the original MWAIT implementation. ++ */ ++ ++static void mwait_idle(void) ++{ ++ if (!current_set_polling_and_test()) { ++ if (static_cpu_has(X86_FEATURE_CLFLUSH_MONITOR)) { ++ mb(); ++ clflush((void *)¤t_thread_info()->flags); ++ mb(); ++ } ++ ++ __monitor((void *)¤t_thread_info()->flags, 0, 0); ++ if (!need_resched()) ++ __sti_mwait(0, 0); ++ else ++ local_irq_enable(); ++ } else ++ local_irq_enable(); ++ current_clr_polling(); ++} ++ + void select_idle_routine(const struct cpuinfo_x86 *c) + { + #ifdef CONFIG_SMP +@@ -411,6 +458,9 @@ void select_idle_routine(const struct cpuinfo_x86 *c) + /* E400: APIC timer interrupt does not wake up CPU from C1e */ + pr_info("using AMD E400 aware idle routine\n"); + x86_idle = amd_e400_idle; ++ } else if (prefer_mwait_c1_over_halt(c)) { ++ pr_info("using mwait in idle threads\n"); ++ x86_idle = mwait_idle; + } else + x86_idle = default_idle; + } +diff --git a/arch/x86/power/hibernate_32.c b/arch/x86/power/hibernate_32.c +index 7d28c885d238..291226b952a9 100644 +--- a/arch/x86/power/hibernate_32.c ++++ b/arch/x86/power/hibernate_32.c +@@ -13,13 +13,11 @@ + #include <asm/page.h> + #include <asm/pgtable.h> + #include <asm/mmzone.h> ++#include <asm/sections.h> + + /* Defined in hibernate_asm_32.S */ + extern int restore_image(void); + +-/* References to section boundaries */ +-extern const void __nosave_begin, __nosave_end; +- + /* Pointer to the temporary resume page tables */ + pgd_t *resume_pg_dir; + +diff --git a/arch/x86/power/hibernate_64.c b/arch/x86/power/hibernate_64.c +index 304fca20d96e..2276238fde6f 100644 +--- a/arch/x86/power/hibernate_64.c ++++ b/arch/x86/power/hibernate_64.c +@@ -17,11 +17,9 @@ + #include <asm/page.h> + #include <asm/pgtable.h> + #include <asm/mtrr.h> ++#include <asm/sections.h> + #include <asm/suspend.h> + +-/* References to section boundaries */ +-extern __visible const void __nosave_begin, __nosave_end; +- + /* Defined in hibernate_asm_64.S */ + extern asmlinkage int restore_image(void); + +diff --git a/arch/xtensa/Kconfig b/arch/xtensa/Kconfig +index c87ae7c6e5f9..8879361e477e 100644 +--- a/arch/xtensa/Kconfig ++++ b/arch/xtensa/Kconfig +@@ -336,6 +336,36 @@ menu "Executable file formats" + + source "fs/Kconfig.binfmt" + ++config XTFPGA_LCD ++ bool "Enable XTFPGA LCD driver" ++ depends on XTENSA_PLATFORM_XTFPGA ++ default n ++ help ++ There's a 2x16 LCD on most of XTFPGA boards, kernel may output ++ progress messages there during bootup/shutdown. It may be useful ++ during board bringup. ++ ++ If unsure, say N. ++ ++config XTFPGA_LCD_BASE_ADDR ++ hex "XTFPGA LCD base address" ++ depends on XTFPGA_LCD ++ default "0x0d0c0000" ++ help ++ Base address of the LCD controller inside KIO region. ++ Different boards from XTFPGA family have LCD controller at different ++ addresses. Please consult prototyping user guide for your board for ++ the correct address. Wrong address here may lead to hardware lockup. ++ ++config XTFPGA_LCD_8BIT_ACCESS ++ bool "Use 8-bit access to XTFPGA LCD" ++ depends on XTFPGA_LCD ++ default n ++ help ++ LCD may be connected with 4- or 8-bit interface, 8-bit access may ++ only be used with 8-bit interface. Please consult prototyping user ++ guide for your board for the correct interface width. ++ + endmenu + + source "net/Kconfig" +diff --git a/arch/xtensa/include/uapi/asm/unistd.h b/arch/xtensa/include/uapi/asm/unistd.h +index 50084f7c01c8..b54fa1bd7f7e 100644 +--- a/arch/xtensa/include/uapi/asm/unistd.h ++++ b/arch/xtensa/include/uapi/asm/unistd.h +@@ -715,7 +715,7 @@ __SYSCALL(323, sys_process_vm_writev, 6) + __SYSCALL(324, sys_name_to_handle_at, 5) + #define __NR_open_by_handle_at 325 + __SYSCALL(325, sys_open_by_handle_at, 3) +-#define __NR_sync_file_range 326 ++#define __NR_sync_file_range2 326 + __SYSCALL(326, sys_sync_file_range2, 6) + #define __NR_perf_event_open 327 + __SYSCALL(327, sys_perf_event_open, 5) +diff --git a/arch/xtensa/platforms/iss/network.c b/arch/xtensa/platforms/iss/network.c +index d05f8feeb8d7..17b1ef3232e4 100644 +--- a/arch/xtensa/platforms/iss/network.c ++++ b/arch/xtensa/platforms/iss/network.c +@@ -349,8 +349,8 @@ static void iss_net_timer(unsigned long priv) + { + struct iss_net_private *lp = (struct iss_net_private *)priv; + +- spin_lock(&lp->lock); + iss_net_poll(); ++ spin_lock(&lp->lock); + mod_timer(&lp->timer, jiffies + lp->timer_val); + spin_unlock(&lp->lock); + } +@@ -361,7 +361,7 @@ static int iss_net_open(struct net_device *dev) + struct iss_net_private *lp = netdev_priv(dev); + int err; + +- spin_lock(&lp->lock); ++ spin_lock_bh(&lp->lock); + + err = lp->tp.open(lp); + if (err < 0) +@@ -376,9 +376,11 @@ static int iss_net_open(struct net_device *dev) + while ((err = iss_net_rx(dev)) > 0) + ; + +- spin_lock(&opened_lock); ++ spin_unlock_bh(&lp->lock); ++ spin_lock_bh(&opened_lock); + list_add(&lp->opened_list, &opened); +- spin_unlock(&opened_lock); ++ spin_unlock_bh(&opened_lock); ++ spin_lock_bh(&lp->lock); + + init_timer(&lp->timer); + lp->timer_val = ISS_NET_TIMER_VALUE; +@@ -387,7 +389,7 @@ static int iss_net_open(struct net_device *dev) + mod_timer(&lp->timer, jiffies + lp->timer_val); + + out: +- spin_unlock(&lp->lock); ++ spin_unlock_bh(&lp->lock); + return err; + } + +@@ -395,7 +397,7 @@ static int iss_net_close(struct net_device *dev) + { + struct iss_net_private *lp = netdev_priv(dev); + netif_stop_queue(dev); +- spin_lock(&lp->lock); ++ spin_lock_bh(&lp->lock); + + spin_lock(&opened_lock); + list_del(&opened); +@@ -405,18 +407,17 @@ static int iss_net_close(struct net_device *dev) + + lp->tp.close(lp); + +- spin_unlock(&lp->lock); ++ spin_unlock_bh(&lp->lock); + return 0; + } + + static int iss_net_start_xmit(struct sk_buff *skb, struct net_device *dev) + { + struct iss_net_private *lp = netdev_priv(dev); +- unsigned long flags; + int len; + + netif_stop_queue(dev); +- spin_lock_irqsave(&lp->lock, flags); ++ spin_lock_bh(&lp->lock); + + len = lp->tp.write(lp, &skb); + +@@ -438,7 +439,7 @@ static int iss_net_start_xmit(struct sk_buff *skb, struct net_device *dev) + pr_err("%s: %s failed(%d)\n", dev->name, __func__, len); + } + +- spin_unlock_irqrestore(&lp->lock, flags); ++ spin_unlock_bh(&lp->lock); + + dev_kfree_skb(skb); + return NETDEV_TX_OK; +@@ -466,9 +467,9 @@ static int iss_net_set_mac(struct net_device *dev, void *addr) + + if (!is_valid_ether_addr(hwaddr->sa_data)) + return -EADDRNOTAVAIL; +- spin_lock(&lp->lock); ++ spin_lock_bh(&lp->lock); + memcpy(dev->dev_addr, hwaddr->sa_data, ETH_ALEN); +- spin_unlock(&lp->lock); ++ spin_unlock_bh(&lp->lock); + return 0; + } + +@@ -520,11 +521,11 @@ static int iss_net_configure(int index, char *init) + *lp = (struct iss_net_private) { + .device_list = LIST_HEAD_INIT(lp->device_list), + .opened_list = LIST_HEAD_INIT(lp->opened_list), +- .lock = __SPIN_LOCK_UNLOCKED(lp.lock), + .dev = dev, + .index = index, +- }; ++ }; + ++ spin_lock_init(&lp->lock); + /* + * If this name ends up conflicting with an existing registered + * netdevice, that is OK, register_netdev{,ice}() will notice this +diff --git a/arch/xtensa/platforms/xtfpga/Makefile b/arch/xtensa/platforms/xtfpga/Makefile +index b9ae206340cd..7839d38b2337 100644 +--- a/arch/xtensa/platforms/xtfpga/Makefile ++++ b/arch/xtensa/platforms/xtfpga/Makefile +@@ -6,4 +6,5 @@ + # + # Note 2! The CFLAGS definitions are in the main makefile... + +-obj-y = setup.o lcd.o ++obj-y += setup.o ++obj-$(CONFIG_XTFPGA_LCD) += lcd.o +diff --git a/arch/xtensa/platforms/xtfpga/include/platform/hardware.h b/arch/xtensa/platforms/xtfpga/include/platform/hardware.h +index aeb316b7ff88..e8cc86fbba09 100644 +--- a/arch/xtensa/platforms/xtfpga/include/platform/hardware.h ++++ b/arch/xtensa/platforms/xtfpga/include/platform/hardware.h +@@ -40,9 +40,6 @@ + + /* UART */ + #define DUART16552_PADDR (XCHAL_KIO_PADDR + 0x0D050020) +-/* LCD instruction and data addresses. */ +-#define LCD_INSTR_ADDR ((char *)IOADDR(0x0D040000)) +-#define LCD_DATA_ADDR ((char *)IOADDR(0x0D040004)) + + /* Misc. */ + #define XTFPGA_FPGAREGS_VADDR IOADDR(0x0D020000) +diff --git a/arch/xtensa/platforms/xtfpga/include/platform/lcd.h b/arch/xtensa/platforms/xtfpga/include/platform/lcd.h +index 0e435645af5a..4c8541ed1139 100644 +--- a/arch/xtensa/platforms/xtfpga/include/platform/lcd.h ++++ b/arch/xtensa/platforms/xtfpga/include/platform/lcd.h +@@ -11,10 +11,25 @@ + #ifndef __XTENSA_XTAVNET_LCD_H + #define __XTENSA_XTAVNET_LCD_H + ++#ifdef CONFIG_XTFPGA_LCD + /* Display string STR at position POS on the LCD. */ + void lcd_disp_at_pos(char *str, unsigned char pos); + + /* Shift the contents of the LCD display left or right. */ + void lcd_shiftleft(void); + void lcd_shiftright(void); ++#else ++static inline void lcd_disp_at_pos(char *str, unsigned char pos) ++{ ++} ++ ++static inline void lcd_shiftleft(void) ++{ ++} ++ ++static inline void lcd_shiftright(void) ++{ ++} ++#endif ++ + #endif +diff --git a/arch/xtensa/platforms/xtfpga/lcd.c b/arch/xtensa/platforms/xtfpga/lcd.c +index 2872301598df..4dc0c1b43f4b 100644 +--- a/arch/xtensa/platforms/xtfpga/lcd.c ++++ b/arch/xtensa/platforms/xtfpga/lcd.c +@@ -1,50 +1,63 @@ + /* +- * Driver for the LCD display on the Tensilica LX60 Board. ++ * Driver for the LCD display on the Tensilica XTFPGA board family. ++ * http://www.mytechcorp.com/cfdata/productFile/File1/MOC-16216B-B-A0A04.pdf + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + * + * Copyright (C) 2001, 2006 Tensilica Inc. ++ * Copyright (C) 2015 Cadence Design Systems Inc. + */ + +-/* +- * +- * FIXME: this code is from the examples from the LX60 user guide. +- * +- * The lcd_pause function does busy waiting, which is probably not +- * great. Maybe the code could be changed to use kernel timers, or +- * change the hardware to not need to wait. +- */ +- ++#include <linux/delay.h> + #include <linux/init.h> + #include <linux/io.h> + + #include <platform/hardware.h> + #include <platform/lcd.h> +-#include <linux/delay.h> + +-#define LCD_PAUSE_ITERATIONS 4000 ++/* LCD instruction and data addresses. */ ++#define LCD_INSTR_ADDR ((char *)IOADDR(CONFIG_XTFPGA_LCD_BASE_ADDR)) ++#define LCD_DATA_ADDR (LCD_INSTR_ADDR + 4) ++ + #define LCD_CLEAR 0x1 + #define LCD_DISPLAY_ON 0xc + + /* 8bit and 2 lines display */ + #define LCD_DISPLAY_MODE8BIT 0x38 ++#define LCD_DISPLAY_MODE4BIT 0x28 + #define LCD_DISPLAY_POS 0x80 + #define LCD_SHIFT_LEFT 0x18 + #define LCD_SHIFT_RIGHT 0x1c + ++static void lcd_put_byte(u8 *addr, u8 data) ++{ ++#ifdef CONFIG_XTFPGA_LCD_8BIT_ACCESS ++ ACCESS_ONCE(*addr) = data; ++#else ++ ACCESS_ONCE(*addr) = data & 0xf0; ++ ACCESS_ONCE(*addr) = (data << 4) & 0xf0; ++#endif ++} ++ + static int __init lcd_init(void) + { +- *LCD_INSTR_ADDR = LCD_DISPLAY_MODE8BIT; ++ ACCESS_ONCE(*LCD_INSTR_ADDR) = LCD_DISPLAY_MODE8BIT; + mdelay(5); +- *LCD_INSTR_ADDR = LCD_DISPLAY_MODE8BIT; ++ ACCESS_ONCE(*LCD_INSTR_ADDR) = LCD_DISPLAY_MODE8BIT; + udelay(200); +- *LCD_INSTR_ADDR = LCD_DISPLAY_MODE8BIT; ++ ACCESS_ONCE(*LCD_INSTR_ADDR) = LCD_DISPLAY_MODE8BIT; ++ udelay(50); ++#ifndef CONFIG_XTFPGA_LCD_8BIT_ACCESS ++ ACCESS_ONCE(*LCD_INSTR_ADDR) = LCD_DISPLAY_MODE4BIT; ++ udelay(50); ++ lcd_put_byte(LCD_INSTR_ADDR, LCD_DISPLAY_MODE4BIT); + udelay(50); +- *LCD_INSTR_ADDR = LCD_DISPLAY_ON; ++#endif ++ lcd_put_byte(LCD_INSTR_ADDR, LCD_DISPLAY_ON); + udelay(50); +- *LCD_INSTR_ADDR = LCD_CLEAR; ++ lcd_put_byte(LCD_INSTR_ADDR, LCD_CLEAR); + mdelay(10); + lcd_disp_at_pos("XTENSA LINUX", 0); + return 0; +@@ -52,10 +65,10 @@ static int __init lcd_init(void) + + void lcd_disp_at_pos(char *str, unsigned char pos) + { +- *LCD_INSTR_ADDR = LCD_DISPLAY_POS | pos; ++ lcd_put_byte(LCD_INSTR_ADDR, LCD_DISPLAY_POS | pos); + udelay(100); + while (*str != 0) { +- *LCD_DATA_ADDR = *str; ++ lcd_put_byte(LCD_DATA_ADDR, *str); + udelay(200); + str++; + } +@@ -63,13 +76,13 @@ void lcd_disp_at_pos(char *str, unsigned char pos) + + void lcd_shiftleft(void) + { +- *LCD_INSTR_ADDR = LCD_SHIFT_LEFT; ++ lcd_put_byte(LCD_INSTR_ADDR, LCD_SHIFT_LEFT); + udelay(50); + } + + void lcd_shiftright(void) + { +- *LCD_INSTR_ADDR = LCD_SHIFT_RIGHT; ++ lcd_put_byte(LCD_INSTR_ADDR, LCD_SHIFT_RIGHT); + udelay(50); + } + +diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c +index 666beea3bf1c..9498c3d575d4 100644 +--- a/drivers/acpi/scan.c ++++ b/drivers/acpi/scan.c +@@ -192,7 +192,11 @@ bool acpi_scan_is_offline(struct acpi_device *adev, bool uevent) + struct acpi_device_physical_node *pn; + bool offline = true; + +- mutex_lock(&adev->physical_node_lock); ++ /* ++ * acpi_container_offline() calls this for all of the container's ++ * children under the container's physical_node_lock lock. ++ */ ++ mutex_lock_nested(&adev->physical_node_lock, SINGLE_DEPTH_NESTING); + + list_for_each_entry(pn, &adev->physical_node_list, node) + if (device_supports_offline(pn->dev) && !pn->dev->offline) { +diff --git a/drivers/base/bus.c b/drivers/base/bus.c +index 45d0fa78981c..12b39dc2ad5c 100644 +--- a/drivers/base/bus.c ++++ b/drivers/base/bus.c +@@ -515,11 +515,11 @@ int bus_add_device(struct device *dev) + goto out_put; + error = device_add_groups(dev, bus->dev_groups); + if (error) +- goto out_groups; ++ goto out_id; + error = sysfs_create_link(&bus->p->devices_kset->kobj, + &dev->kobj, dev_name(dev)); + if (error) +- goto out_id; ++ goto out_groups; + error = sysfs_create_link(&dev->kobj, + &dev->bus->p->subsys.kobj, "subsystem"); + if (error) +diff --git a/drivers/bluetooth/ath3k.c b/drivers/bluetooth/ath3k.c +index 5afe556a70f8..26b03e1254ef 100644 +--- a/drivers/bluetooth/ath3k.c ++++ b/drivers/bluetooth/ath3k.c +@@ -64,6 +64,7 @@ static const struct usb_device_id ath3k_table[] = { + /* Atheros AR3011 with sflash firmware*/ + { USB_DEVICE(0x0489, 0xE027) }, + { USB_DEVICE(0x0489, 0xE03D) }, ++ { USB_DEVICE(0x04F2, 0xAFF1) }, + { USB_DEVICE(0x0930, 0x0215) }, + { USB_DEVICE(0x0CF3, 0x3002) }, + { USB_DEVICE(0x0CF3, 0xE019) }, +diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c +index 03b331798e16..9eb1669962ef 100644 +--- a/drivers/bluetooth/btusb.c ++++ b/drivers/bluetooth/btusb.c +@@ -142,6 +142,7 @@ static const struct usb_device_id blacklist_table[] = { + /* Atheros 3011 with sflash firmware */ + { USB_DEVICE(0x0489, 0xe027), .driver_info = BTUSB_IGNORE }, + { USB_DEVICE(0x0489, 0xe03d), .driver_info = BTUSB_IGNORE }, ++ { USB_DEVICE(0x04f2, 0xaff1), .driver_info = BTUSB_IGNORE }, + { USB_DEVICE(0x0930, 0x0215), .driver_info = BTUSB_IGNORE }, + { USB_DEVICE(0x0cf3, 0x3002), .driver_info = BTUSB_IGNORE }, + { USB_DEVICE(0x0cf3, 0xe019), .driver_info = BTUSB_IGNORE }, +diff --git a/drivers/clk/qcom/clk-rcg2.c b/drivers/clk/qcom/clk-rcg2.c +index 0996a3a39855..a9dd21aff6bb 100644 +--- a/drivers/clk/qcom/clk-rcg2.c ++++ b/drivers/clk/qcom/clk-rcg2.c +@@ -257,7 +257,7 @@ static int __clk_rcg2_set_rate(struct clk_hw *hw, unsigned long rate) + mask |= CFG_SRC_SEL_MASK | CFG_MODE_MASK; + cfg = f->pre_div << CFG_SRC_DIV_SHIFT; + cfg |= rcg->parent_map[f->src] << CFG_SRC_SEL_SHIFT; +- if (rcg->mnd_width && f->n) ++ if (rcg->mnd_width && f->n && (f->m != f->n)) + cfg |= CFG_MODE_DUAL_EDGE; + ret = regmap_update_bits(rcg->clkr.regmap, rcg->cmd_rcgr + CFG_REG, mask, + cfg); +diff --git a/drivers/clk/tegra/clk.c b/drivers/clk/tegra/clk.c +index c0a7d7723510..a90af1780cf2 100644 +--- a/drivers/clk/tegra/clk.c ++++ b/drivers/clk/tegra/clk.c +@@ -266,7 +266,7 @@ void __init tegra_add_of_provider(struct device_node *np) + of_clk_add_provider(np, of_clk_src_onecell_get, &clk_data); + + rst_ctlr.of_node = np; +- rst_ctlr.nr_resets = clk_num * 32; ++ rst_ctlr.nr_resets = periph_banks * 32; + reset_controller_register(&rst_ctlr); + } + +diff --git a/drivers/crypto/omap-aes.c b/drivers/crypto/omap-aes.c +index dde41f1df608..d522396174c3 100644 +--- a/drivers/crypto/omap-aes.c ++++ b/drivers/crypto/omap-aes.c +@@ -554,15 +554,23 @@ static int omap_aes_crypt_dma_stop(struct omap_aes_dev *dd) + return err; + } + +-static int omap_aes_check_aligned(struct scatterlist *sg) ++static int omap_aes_check_aligned(struct scatterlist *sg, int total) + { ++ int len = 0; ++ + while (sg) { + if (!IS_ALIGNED(sg->offset, 4)) + return -1; + if (!IS_ALIGNED(sg->length, AES_BLOCK_SIZE)) + return -1; ++ ++ len += sg->length; + sg = sg_next(sg); + } ++ ++ if (len != total) ++ return -1; ++ + return 0; + } + +@@ -633,8 +641,8 @@ static int omap_aes_handle_queue(struct omap_aes_dev *dd, + dd->in_sg = req->src; + dd->out_sg = req->dst; + +- if (omap_aes_check_aligned(dd->in_sg) || +- omap_aes_check_aligned(dd->out_sg)) { ++ if (omap_aes_check_aligned(dd->in_sg, dd->total) || ++ omap_aes_check_aligned(dd->out_sg, dd->total)) { + if (omap_aes_copy_sgs(dd)) + pr_err("Failed to copy SGs for unaligned cases\n"); + dd->sgs_copied = 1; +diff --git a/drivers/gpio/gpio-mvebu.c b/drivers/gpio/gpio-mvebu.c +index 3b1fd1ce460f..e9d8cf6c2f79 100644 +--- a/drivers/gpio/gpio-mvebu.c ++++ b/drivers/gpio/gpio-mvebu.c +@@ -304,11 +304,13 @@ static void mvebu_gpio_edge_irq_mask(struct irq_data *d) + { + struct irq_chip_generic *gc = irq_data_get_irq_chip_data(d); + struct mvebu_gpio_chip *mvchip = gc->private; ++ struct irq_chip_type *ct = irq_data_get_chip_type(d); + u32 mask = 1 << (d->irq - gc->irq_base); + + irq_gc_lock(gc); +- gc->mask_cache &= ~mask; +- writel_relaxed(gc->mask_cache, mvebu_gpioreg_edge_mask(mvchip)); ++ ct->mask_cache_priv &= ~mask; ++ ++ writel_relaxed(ct->mask_cache_priv, mvebu_gpioreg_edge_mask(mvchip)); + irq_gc_unlock(gc); + } + +@@ -316,11 +318,13 @@ static void mvebu_gpio_edge_irq_unmask(struct irq_data *d) + { + struct irq_chip_generic *gc = irq_data_get_irq_chip_data(d); + struct mvebu_gpio_chip *mvchip = gc->private; ++ struct irq_chip_type *ct = irq_data_get_chip_type(d); ++ + u32 mask = 1 << (d->irq - gc->irq_base); + + irq_gc_lock(gc); +- gc->mask_cache |= mask; +- writel_relaxed(gc->mask_cache, mvebu_gpioreg_edge_mask(mvchip)); ++ ct->mask_cache_priv |= mask; ++ writel_relaxed(ct->mask_cache_priv, mvebu_gpioreg_edge_mask(mvchip)); + irq_gc_unlock(gc); + } + +@@ -328,11 +332,13 @@ static void mvebu_gpio_level_irq_mask(struct irq_data *d) + { + struct irq_chip_generic *gc = irq_data_get_irq_chip_data(d); + struct mvebu_gpio_chip *mvchip = gc->private; ++ struct irq_chip_type *ct = irq_data_get_chip_type(d); ++ + u32 mask = 1 << (d->irq - gc->irq_base); + + irq_gc_lock(gc); +- gc->mask_cache &= ~mask; +- writel_relaxed(gc->mask_cache, mvebu_gpioreg_level_mask(mvchip)); ++ ct->mask_cache_priv &= ~mask; ++ writel_relaxed(ct->mask_cache_priv, mvebu_gpioreg_level_mask(mvchip)); + irq_gc_unlock(gc); + } + +@@ -340,11 +346,13 @@ static void mvebu_gpio_level_irq_unmask(struct irq_data *d) + { + struct irq_chip_generic *gc = irq_data_get_irq_chip_data(d); + struct mvebu_gpio_chip *mvchip = gc->private; ++ struct irq_chip_type *ct = irq_data_get_chip_type(d); ++ + u32 mask = 1 << (d->irq - gc->irq_base); + + irq_gc_lock(gc); +- gc->mask_cache |= mask; +- writel_relaxed(gc->mask_cache, mvebu_gpioreg_level_mask(mvchip)); ++ ct->mask_cache_priv |= mask; ++ writel_relaxed(ct->mask_cache_priv, mvebu_gpioreg_level_mask(mvchip)); + irq_gc_unlock(gc); + } + +diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c +index 8f42bd724682..f1fc14c33be5 100644 +--- a/drivers/gpio/gpiolib.c ++++ b/drivers/gpio/gpiolib.c +@@ -1928,15 +1928,15 @@ EXPORT_SYMBOL_GPL(gpiod_is_active_low); + * that the GPIO was actually requested. + */ + +-static int _gpiod_get_raw_value(const struct gpio_desc *desc) ++static bool _gpiod_get_raw_value(const struct gpio_desc *desc) + { + struct gpio_chip *chip; +- int value; ++ bool value; + int offset; + + chip = desc->chip; + offset = gpio_chip_hwgpio(desc); +- value = chip->get ? chip->get(chip, offset) : 0; ++ value = chip->get ? chip->get(chip, offset) : false; + trace_gpio_value(desc_to_gpio(desc), 1, value); + return value; + } +@@ -1992,7 +1992,7 @@ EXPORT_SYMBOL_GPL(gpiod_get_value); + * @desc: gpio descriptor whose state need to be set. + * @value: Non-zero for setting it HIGH otherise it will set to LOW. + */ +-static void _gpio_set_open_drain_value(struct gpio_desc *desc, int value) ++static void _gpio_set_open_drain_value(struct gpio_desc *desc, bool value) + { + int err = 0; + struct gpio_chip *chip = desc->chip; +@@ -2019,7 +2019,7 @@ static void _gpio_set_open_drain_value(struct gpio_desc *desc, int value) + * @desc: gpio descriptor whose state need to be set. + * @value: Non-zero for setting it HIGH otherise it will set to LOW. + */ +-static void _gpio_set_open_source_value(struct gpio_desc *desc, int value) ++static void _gpio_set_open_source_value(struct gpio_desc *desc, bool value) + { + int err = 0; + struct gpio_chip *chip = desc->chip; +@@ -2041,7 +2041,7 @@ static void _gpio_set_open_source_value(struct gpio_desc *desc, int value) + __func__, err); + } + +-static void _gpiod_set_raw_value(struct gpio_desc *desc, int value) ++static void _gpiod_set_raw_value(struct gpio_desc *desc, bool value) + { + struct gpio_chip *chip; + +diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h +index 0c83b3dab58c..5b38bf819b7b 100644 +--- a/drivers/gpu/drm/i915/i915_reg.h ++++ b/drivers/gpu/drm/i915/i915_reg.h +@@ -1181,6 +1181,7 @@ + #define GMBUS_CYCLE_INDEX (2<<25) + #define GMBUS_CYCLE_STOP (4<<25) + #define GMBUS_BYTE_COUNT_SHIFT 16 ++#define GMBUS_BYTE_COUNT_MAX 256U + #define GMBUS_SLAVE_INDEX_SHIFT 8 + #define GMBUS_SLAVE_ADDR_SHIFT 1 + #define GMBUS_SLAVE_READ (1<<0) +diff --git a/drivers/gpu/drm/i915/intel_i2c.c b/drivers/gpu/drm/i915/intel_i2c.c +index d33b61d0dd33..1d02970ed395 100644 +--- a/drivers/gpu/drm/i915/intel_i2c.c ++++ b/drivers/gpu/drm/i915/intel_i2c.c +@@ -324,18 +324,17 @@ gmbus_wait_idle(struct drm_i915_private *dev_priv) + } + + static int +-gmbus_xfer_read(struct drm_i915_private *dev_priv, struct i2c_msg *msg, +- u32 gmbus1_index) ++gmbus_xfer_read_chunk(struct drm_i915_private *dev_priv, ++ unsigned short addr, u8 *buf, unsigned int len, ++ u32 gmbus1_index) + { + int reg_offset = dev_priv->gpio_mmio_base; +- u16 len = msg->len; +- u8 *buf = msg->buf; + + I915_WRITE(GMBUS1 + reg_offset, + gmbus1_index | + GMBUS_CYCLE_WAIT | + (len << GMBUS_BYTE_COUNT_SHIFT) | +- (msg->addr << GMBUS_SLAVE_ADDR_SHIFT) | ++ (addr << GMBUS_SLAVE_ADDR_SHIFT) | + GMBUS_SLAVE_READ | GMBUS_SW_RDY); + while (len) { + int ret; +@@ -357,11 +356,35 @@ gmbus_xfer_read(struct drm_i915_private *dev_priv, struct i2c_msg *msg, + } + + static int +-gmbus_xfer_write(struct drm_i915_private *dev_priv, struct i2c_msg *msg) ++gmbus_xfer_read(struct drm_i915_private *dev_priv, struct i2c_msg *msg, ++ u32 gmbus1_index) + { +- int reg_offset = dev_priv->gpio_mmio_base; +- u16 len = msg->len; + u8 *buf = msg->buf; ++ unsigned int rx_size = msg->len; ++ unsigned int len; ++ int ret; ++ ++ do { ++ len = min(rx_size, GMBUS_BYTE_COUNT_MAX); ++ ++ ret = gmbus_xfer_read_chunk(dev_priv, msg->addr, ++ buf, len, gmbus1_index); ++ if (ret) ++ return ret; ++ ++ rx_size -= len; ++ buf += len; ++ } while (rx_size != 0); ++ ++ return 0; ++} ++ ++static int ++gmbus_xfer_write_chunk(struct drm_i915_private *dev_priv, ++ unsigned short addr, u8 *buf, unsigned int len) ++{ ++ int reg_offset = dev_priv->gpio_mmio_base; ++ unsigned int chunk_size = len; + u32 val, loop; + + val = loop = 0; +@@ -373,8 +396,8 @@ gmbus_xfer_write(struct drm_i915_private *dev_priv, struct i2c_msg *msg) + I915_WRITE(GMBUS3 + reg_offset, val); + I915_WRITE(GMBUS1 + reg_offset, + GMBUS_CYCLE_WAIT | +- (msg->len << GMBUS_BYTE_COUNT_SHIFT) | +- (msg->addr << GMBUS_SLAVE_ADDR_SHIFT) | ++ (chunk_size << GMBUS_BYTE_COUNT_SHIFT) | ++ (addr << GMBUS_SLAVE_ADDR_SHIFT) | + GMBUS_SLAVE_WRITE | GMBUS_SW_RDY); + while (len) { + int ret; +@@ -391,6 +414,29 @@ gmbus_xfer_write(struct drm_i915_private *dev_priv, struct i2c_msg *msg) + if (ret) + return ret; + } ++ ++ return 0; ++} ++ ++static int ++gmbus_xfer_write(struct drm_i915_private *dev_priv, struct i2c_msg *msg) ++{ ++ u8 *buf = msg->buf; ++ unsigned int tx_size = msg->len; ++ unsigned int len; ++ int ret; ++ ++ do { ++ len = min(tx_size, GMBUS_BYTE_COUNT_MAX); ++ ++ ret = gmbus_xfer_write_chunk(dev_priv, msg->addr, buf, len); ++ if (ret) ++ return ret; ++ ++ buf += len; ++ tx_size -= len; ++ } while (tx_size != 0); ++ + return 0; + } + +diff --git a/drivers/gpu/drm/msm/adreno/a3xx_gpu.c b/drivers/gpu/drm/msm/adreno/a3xx_gpu.c +index 461df93e825e..4f32b34f48d4 100644 +--- a/drivers/gpu/drm/msm/adreno/a3xx_gpu.c ++++ b/drivers/gpu/drm/msm/adreno/a3xx_gpu.c +@@ -35,8 +35,6 @@ + A3XX_INT0_CP_AHB_ERROR_HALT | \ + A3XX_INT0_UCHE_OOB_ACCESS) + +-static struct platform_device *a3xx_pdev; +- + static void a3xx_me_init(struct msm_gpu *gpu) + { + struct msm_ringbuffer *ring = gpu->rb; +@@ -311,7 +309,6 @@ static void a3xx_destroy(struct msm_gpu *gpu) + ocmem_free(OCMEM_GRAPHICS, a3xx_gpu->ocmem_hdl); + #endif + +- put_device(&a3xx_gpu->pdev->dev); + kfree(a3xx_gpu); + } + +@@ -439,7 +436,8 @@ struct msm_gpu *a3xx_gpu_init(struct drm_device *dev) + struct a3xx_gpu *a3xx_gpu = NULL; + struct adreno_gpu *adreno_gpu; + struct msm_gpu *gpu; +- struct platform_device *pdev = a3xx_pdev; ++ struct msm_drm_private *priv = dev->dev_private; ++ struct platform_device *pdev = priv->gpu_pdev; + struct adreno_platform_config *config; + int ret; + +@@ -460,7 +458,6 @@ struct msm_gpu *a3xx_gpu_init(struct drm_device *dev) + adreno_gpu = &a3xx_gpu->base; + gpu = &adreno_gpu->base; + +- get_device(&pdev->dev); + a3xx_gpu->pdev = pdev; + + gpu->fast_rate = config->fast_rate; +@@ -522,17 +519,24 @@ fail: + # include <mach/kgsl.h> + #endif + +-static int a3xx_probe(struct platform_device *pdev) ++static void set_gpu_pdev(struct drm_device *dev, ++ struct platform_device *pdev) ++{ ++ struct msm_drm_private *priv = dev->dev_private; ++ priv->gpu_pdev = pdev; ++} ++ ++static int a3xx_bind(struct device *dev, struct device *master, void *data) + { + static struct adreno_platform_config config = {}; + #ifdef CONFIG_OF +- struct device_node *child, *node = pdev->dev.of_node; ++ struct device_node *child, *node = dev->of_node; + u32 val; + int ret; + + ret = of_property_read_u32(node, "qcom,chipid", &val); + if (ret) { +- dev_err(&pdev->dev, "could not find chipid: %d\n", ret); ++ dev_err(dev, "could not find chipid: %d\n", ret); + return ret; + } + +@@ -548,7 +552,7 @@ static int a3xx_probe(struct platform_device *pdev) + for_each_child_of_node(child, pwrlvl) { + ret = of_property_read_u32(pwrlvl, "qcom,gpu-freq", &val); + if (ret) { +- dev_err(&pdev->dev, "could not find gpu-freq: %d\n", ret); ++ dev_err(dev, "could not find gpu-freq: %d\n", ret); + return ret; + } + config.fast_rate = max(config.fast_rate, val); +@@ -558,12 +562,12 @@ static int a3xx_probe(struct platform_device *pdev) + } + + if (!config.fast_rate) { +- dev_err(&pdev->dev, "could not find clk rates\n"); ++ dev_err(dev, "could not find clk rates\n"); + return -ENXIO; + } + + #else +- struct kgsl_device_platform_data *pdata = pdev->dev.platform_data; ++ struct kgsl_device_platform_data *pdata = dev->platform_data; + uint32_t version = socinfo_get_version(); + if (cpu_is_apq8064ab()) { + config.fast_rate = 450000000; +@@ -609,14 +613,30 @@ static int a3xx_probe(struct platform_device *pdev) + config.bus_scale_table = pdata->bus_scale_table; + # endif + #endif +- pdev->dev.platform_data = &config; +- a3xx_pdev = pdev; ++ dev->platform_data = &config; ++ set_gpu_pdev(dev_get_drvdata(master), to_platform_device(dev)); + return 0; + } + ++static void a3xx_unbind(struct device *dev, struct device *master, ++ void *data) ++{ ++ set_gpu_pdev(dev_get_drvdata(master), NULL); ++} ++ ++static const struct component_ops a3xx_ops = { ++ .bind = a3xx_bind, ++ .unbind = a3xx_unbind, ++}; ++ ++static int a3xx_probe(struct platform_device *pdev) ++{ ++ return component_add(&pdev->dev, &a3xx_ops); ++} ++ + static int a3xx_remove(struct platform_device *pdev) + { +- a3xx_pdev = NULL; ++ component_del(&pdev->dev, &a3xx_ops); + return 0; + } + +@@ -624,7 +644,6 @@ static const struct of_device_id dt_match[] = { + { .compatible = "qcom,kgsl-3d0" }, + {} + }; +-MODULE_DEVICE_TABLE(of, dt_match); + + static struct platform_driver a3xx_driver = { + .probe = a3xx_probe, +diff --git a/drivers/gpu/drm/msm/hdmi/hdmi.c b/drivers/gpu/drm/msm/hdmi/hdmi.c +index 6f1588aa9071..8a04a1d206cd 100644 +--- a/drivers/gpu/drm/msm/hdmi/hdmi.c ++++ b/drivers/gpu/drm/msm/hdmi/hdmi.c +@@ -17,8 +17,6 @@ + + #include "hdmi.h" + +-static struct platform_device *hdmi_pdev; +- + void hdmi_set_mode(struct hdmi *hdmi, bool power_on) + { + uint32_t ctrl = 0; +@@ -75,7 +73,7 @@ struct hdmi *hdmi_init(struct drm_device *dev, struct drm_encoder *encoder) + { + struct hdmi *hdmi = NULL; + struct msm_drm_private *priv = dev->dev_private; +- struct platform_device *pdev = hdmi_pdev; ++ struct platform_device *pdev = priv->hdmi_pdev; + struct hdmi_platform_config *config; + int i, ret; + +@@ -95,8 +93,6 @@ struct hdmi *hdmi_init(struct drm_device *dev, struct drm_encoder *encoder) + + kref_init(&hdmi->refcount); + +- get_device(&pdev->dev); +- + hdmi->dev = dev; + hdmi->pdev = pdev; + hdmi->config = config; +@@ -249,17 +245,24 @@ fail: + + #include <linux/of_gpio.h> + +-static int hdmi_dev_probe(struct platform_device *pdev) ++static void set_hdmi_pdev(struct drm_device *dev, ++ struct platform_device *pdev) ++{ ++ struct msm_drm_private *priv = dev->dev_private; ++ priv->hdmi_pdev = pdev; ++} ++ ++static int hdmi_bind(struct device *dev, struct device *master, void *data) + { + static struct hdmi_platform_config config = {}; + #ifdef CONFIG_OF +- struct device_node *of_node = pdev->dev.of_node; ++ struct device_node *of_node = dev->of_node; + + int get_gpio(const char *name) + { + int gpio = of_get_named_gpio(of_node, name, 0); + if (gpio < 0) { +- dev_err(&pdev->dev, "failed to get gpio: %s (%d)\n", ++ dev_err(dev, "failed to get gpio: %s (%d)\n", + name, gpio); + gpio = -1; + } +@@ -336,14 +339,30 @@ static int hdmi_dev_probe(struct platform_device *pdev) + config.mux_sel_gpio = -1; + } + #endif +- pdev->dev.platform_data = &config; +- hdmi_pdev = pdev; ++ dev->platform_data = &config; ++ set_hdmi_pdev(dev_get_drvdata(master), to_platform_device(dev)); + return 0; + } + ++static void hdmi_unbind(struct device *dev, struct device *master, ++ void *data) ++{ ++ set_hdmi_pdev(dev_get_drvdata(master), NULL); ++} ++ ++static const struct component_ops hdmi_ops = { ++ .bind = hdmi_bind, ++ .unbind = hdmi_unbind, ++}; ++ ++static int hdmi_dev_probe(struct platform_device *pdev) ++{ ++ return component_add(&pdev->dev, &hdmi_ops); ++} ++ + static int hdmi_dev_remove(struct platform_device *pdev) + { +- hdmi_pdev = NULL; ++ component_del(&pdev->dev, &hdmi_ops); + return 0; + } + +@@ -351,7 +370,6 @@ static const struct of_device_id dt_match[] = { + { .compatible = "qcom,hdmi-tx" }, + {} + }; +-MODULE_DEVICE_TABLE(of, dt_match); + + static struct platform_driver hdmi_driver = { + .probe = hdmi_dev_probe, +diff --git a/drivers/gpu/drm/msm/msm_drv.c b/drivers/gpu/drm/msm/msm_drv.c +index e6adafc7eff3..e79cfd0b2b04 100644 +--- a/drivers/gpu/drm/msm/msm_drv.c ++++ b/drivers/gpu/drm/msm/msm_drv.c +@@ -56,6 +56,10 @@ static char *vram; + MODULE_PARM_DESC(vram, "Configure VRAM size (for devices without IOMMU/GPUMMU"); + module_param(vram, charp, 0); + ++/* ++ * Util/helpers: ++ */ ++ + void __iomem *msm_ioremap(struct platform_device *pdev, const char *name, + const char *dbgname) + { +@@ -143,6 +147,8 @@ static int msm_unload(struct drm_device *dev) + priv->vram.paddr, &attrs); + } + ++ component_unbind_all(dev->dev, dev); ++ + dev->dev_private = NULL; + + kfree(priv); +@@ -175,6 +181,7 @@ static int msm_load(struct drm_device *dev, unsigned long flags) + struct msm_kms *kms; + int ret; + ++ + priv = kzalloc(sizeof(*priv), GFP_KERNEL); + if (!priv) { + dev_err(dev->dev, "failed to allocate private data\n"); +@@ -226,6 +233,13 @@ static int msm_load(struct drm_device *dev, unsigned long flags) + (uint32_t)(priv->vram.paddr + size)); + } + ++ platform_set_drvdata(pdev, dev); ++ ++ /* Bind all our sub-components: */ ++ ret = component_bind_all(dev->dev, dev); ++ if (ret) ++ return ret; ++ + switch (get_mdp_ver(pdev)) { + case 4: + kms = mdp4_kms_init(dev); +@@ -281,8 +295,6 @@ static int msm_load(struct drm_device *dev, unsigned long flags) + goto fail; + } + +- platform_set_drvdata(pdev, dev); +- + #ifdef CONFIG_DRM_MSM_FBDEV + priv->fbdev = msm_fbdev_init(dev); + #endif +@@ -819,18 +831,110 @@ static const struct dev_pm_ops msm_pm_ops = { + }; + + /* ++ * Componentized driver support: ++ */ ++ ++#ifdef CONFIG_OF ++/* NOTE: the CONFIG_OF case duplicates the same code as exynos or imx ++ * (or probably any other).. so probably some room for some helpers ++ */ ++static int compare_of(struct device *dev, void *data) ++{ ++ return dev->of_node == data; ++} ++ ++static int msm_drm_add_components(struct device *master, struct master *m) ++{ ++ struct device_node *np = master->of_node; ++ unsigned i; ++ int ret; ++ ++ for (i = 0; ; i++) { ++ struct device_node *node; ++ ++ node = of_parse_phandle(np, "connectors", i); ++ if (!node) ++ break; ++ ++ ret = component_master_add_child(m, compare_of, node); ++ of_node_put(node); ++ ++ if (ret) ++ return ret; ++ } ++ return 0; ++} ++#else ++static int compare_dev(struct device *dev, void *data) ++{ ++ return dev == data; ++} ++ ++static int msm_drm_add_components(struct device *master, struct master *m) ++{ ++ /* For non-DT case, it kinda sucks. We don't actually have a way ++ * to know whether or not we are waiting for certain devices (or if ++ * they are simply not present). But for non-DT we only need to ++ * care about apq8064/apq8060/etc (all mdp4/a3xx): ++ */ ++ static const char *devnames[] = { ++ "hdmi_msm.0", "kgsl-3d0.0", ++ }; ++ int i; ++ ++ DBG("Adding components.."); ++ ++ for (i = 0; i < ARRAY_SIZE(devnames); i++) { ++ struct device *dev; ++ int ret; ++ ++ dev = bus_find_device_by_name(&platform_bus_type, ++ NULL, devnames[i]); ++ if (!dev) { ++ dev_info(master, "still waiting for %s\n", devnames[i]); ++ return -EPROBE_DEFER; ++ } ++ ++ ret = component_master_add_child(m, compare_dev, dev); ++ if (ret) { ++ DBG("could not add child: %d", ret); ++ return ret; ++ } ++ } ++ ++ return 0; ++} ++#endif ++ ++static int msm_drm_bind(struct device *dev) ++{ ++ return drm_platform_init(&msm_driver, to_platform_device(dev)); ++} ++ ++static void msm_drm_unbind(struct device *dev) ++{ ++ drm_put_dev(platform_get_drvdata(to_platform_device(dev))); ++} ++ ++static const struct component_master_ops msm_drm_ops = { ++ .add_components = msm_drm_add_components, ++ .bind = msm_drm_bind, ++ .unbind = msm_drm_unbind, ++}; ++ ++/* + * Platform driver: + */ + + static int msm_pdev_probe(struct platform_device *pdev) + { + pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32); +- return drm_platform_init(&msm_driver, pdev); ++ return component_master_add(&pdev->dev, &msm_drm_ops); + } + + static int msm_pdev_remove(struct platform_device *pdev) + { +- drm_put_dev(platform_get_drvdata(pdev)); ++ component_master_del(&pdev->dev, &msm_drm_ops); + + return 0; + } +diff --git a/drivers/gpu/drm/msm/msm_drv.h b/drivers/gpu/drm/msm/msm_drv.h +index 3d63269c5b29..9d10ee0b5aac 100644 +--- a/drivers/gpu/drm/msm/msm_drv.h ++++ b/drivers/gpu/drm/msm/msm_drv.h +@@ -22,6 +22,7 @@ + #include <linux/clk.h> + #include <linux/cpufreq.h> + #include <linux/module.h> ++#include <linux/component.h> + #include <linux/platform_device.h> + #include <linux/pm.h> + #include <linux/pm_runtime.h> +@@ -69,6 +70,9 @@ struct msm_drm_private { + + struct msm_kms *kms; + ++ /* subordinate devices, if present: */ ++ struct platform_device *hdmi_pdev, *gpu_pdev; ++ + /* when we have more than one 'msm_gpu' these need to be an array: */ + struct msm_gpu *gpu; + struct msm_file_private *lastctx; +diff --git a/drivers/gpu/drm/radeon/atombios_crtc.c b/drivers/gpu/drm/radeon/atombios_crtc.c +index 663394f0c166..0db3e208f02a 100644 +--- a/drivers/gpu/drm/radeon/atombios_crtc.c ++++ b/drivers/gpu/drm/radeon/atombios_crtc.c +@@ -330,8 +330,10 @@ atombios_set_crtc_dtd_timing(struct drm_crtc *crtc, + misc |= ATOM_COMPOSITESYNC; + if (mode->flags & DRM_MODE_FLAG_INTERLACE) + misc |= ATOM_INTERLACE; +- if (mode->flags & DRM_MODE_FLAG_DBLSCAN) ++ if (mode->flags & DRM_MODE_FLAG_DBLCLK) + misc |= ATOM_DOUBLE_CLOCK_MODE; ++ if (mode->flags & DRM_MODE_FLAG_DBLSCAN) ++ misc |= ATOM_H_REPLICATIONBY2 | ATOM_V_REPLICATIONBY2; + + args.susModeMiscInfo.usAccess = cpu_to_le16(misc); + args.ucCRTC = radeon_crtc->crtc_id; +@@ -374,8 +376,10 @@ static void atombios_crtc_set_timing(struct drm_crtc *crtc, + misc |= ATOM_COMPOSITESYNC; + if (mode->flags & DRM_MODE_FLAG_INTERLACE) + misc |= ATOM_INTERLACE; +- if (mode->flags & DRM_MODE_FLAG_DBLSCAN) ++ if (mode->flags & DRM_MODE_FLAG_DBLCLK) + misc |= ATOM_DOUBLE_CLOCK_MODE; ++ if (mode->flags & DRM_MODE_FLAG_DBLSCAN) ++ misc |= ATOM_H_REPLICATIONBY2 | ATOM_V_REPLICATIONBY2; + + args.susModeMiscInfo.usAccess = cpu_to_le16(misc); + args.ucCRTC = radeon_crtc->crtc_id; +diff --git a/drivers/hv/channel.c b/drivers/hv/channel.c +index e99e71a6ea59..356f22f90a05 100644 +--- a/drivers/hv/channel.c ++++ b/drivers/hv/channel.c +@@ -134,7 +134,7 @@ int vmbus_open(struct vmbus_channel *newchannel, u32 send_ringbuffer_size, + GFP_KERNEL); + if (!open_info) { + err = -ENOMEM; +- goto error0; ++ goto error_gpadl; + } + + init_completion(&open_info->waitevent); +@@ -150,7 +150,7 @@ int vmbus_open(struct vmbus_channel *newchannel, u32 send_ringbuffer_size, + + if (userdatalen > MAX_USER_DEFINED_BYTES) { + err = -EINVAL; +- goto error0; ++ goto error_gpadl; + } + + if (userdatalen) +@@ -194,6 +194,9 @@ error1: + list_del(&open_info->msglistentry); + spin_unlock_irqrestore(&vmbus_connection.channelmsg_lock, flags); + ++error_gpadl: ++ vmbus_teardown_gpadl(newchannel, newchannel->ringbuffer_gpadlhandle); ++ + error0: + free_pages((unsigned long)out, + get_order(send_ringbuffer_size + recv_ringbuffer_size)); +diff --git a/drivers/i2c/i2c-core.c b/drivers/i2c/i2c-core.c +index 5fb80b8962a2..43fe15a0e5cc 100644 +--- a/drivers/i2c/i2c-core.c ++++ b/drivers/i2c/i2c-core.c +@@ -217,6 +217,7 @@ int i2c_generic_scl_recovery(struct i2c_adapter *adap) + adap->bus_recovery_info->set_scl(adap, 1); + return i2c_generic_recovery(adap); + } ++EXPORT_SYMBOL_GPL(i2c_generic_scl_recovery); + + int i2c_generic_gpio_recovery(struct i2c_adapter *adap) + { +@@ -231,6 +232,7 @@ int i2c_generic_gpio_recovery(struct i2c_adapter *adap) + + return ret; + } ++EXPORT_SYMBOL_GPL(i2c_generic_gpio_recovery); + + int i2c_recover_bus(struct i2c_adapter *adap) + { +@@ -240,6 +242,7 @@ int i2c_recover_bus(struct i2c_adapter *adap) + dev_dbg(&adap->dev, "Trying i2c bus recovery\n"); + return adap->bus_recovery_info->recover_bus(adap); + } ++EXPORT_SYMBOL_GPL(i2c_recover_bus); + + static int i2c_device_probe(struct device *dev) + { +diff --git a/drivers/infiniband/core/umem.c b/drivers/infiniband/core/umem.c +index 055ebebc07dd..c1fef27010d4 100644 +--- a/drivers/infiniband/core/umem.c ++++ b/drivers/infiniband/core/umem.c +@@ -94,12 +94,15 @@ struct ib_umem *ib_umem_get(struct ib_ucontext *context, unsigned long addr, + if (dmasync) + dma_set_attr(DMA_ATTR_WRITE_BARRIER, &attrs); + ++ if (!size) ++ return ERR_PTR(-EINVAL); ++ + /* + * If the combination of the addr and size requested for this memory + * region causes an integer overflow, return error. + */ +- if ((PAGE_ALIGN(addr + size) <= size) || +- (PAGE_ALIGN(addr + size) <= addr)) ++ if (((addr + size) < addr) || ++ PAGE_ALIGN(addr + size) < (addr + size)) + return ERR_PTR(-EINVAL); + + if (!can_do_mlock()) +diff --git a/drivers/infiniband/hw/mlx4/qp.c b/drivers/infiniband/hw/mlx4/qp.c +index d8f4d1fe8494..8d7cd98c9671 100644 +--- a/drivers/infiniband/hw/mlx4/qp.c ++++ b/drivers/infiniband/hw/mlx4/qp.c +@@ -2274,8 +2274,7 @@ static int build_lso_seg(struct mlx4_wqe_lso_seg *wqe, struct ib_send_wr *wr, + + memcpy(wqe->header, wr->wr.ud.header, wr->wr.ud.hlen); + +- *lso_hdr_sz = cpu_to_be32((wr->wr.ud.mss - wr->wr.ud.hlen) << 16 | +- wr->wr.ud.hlen); ++ *lso_hdr_sz = cpu_to_be32(wr->wr.ud.mss << 16 | wr->wr.ud.hlen); + *lso_seg_len = halign; + return 0; + } +diff --git a/drivers/input/mouse/elantech.c b/drivers/input/mouse/elantech.c +index 0b75b5764f31..cfc5a2e6dcce 100644 +--- a/drivers/input/mouse/elantech.c ++++ b/drivers/input/mouse/elantech.c +@@ -814,6 +814,21 @@ static psmouse_ret_t elantech_process_byte(struct psmouse *psmouse) + } + + /* ++ * This writes the reg_07 value again to the hardware at the end of every ++ * set_rate call because the register loses its value. reg_07 allows setting ++ * absolute mode on v4 hardware ++ */ ++static void elantech_set_rate_restore_reg_07(struct psmouse *psmouse, ++ unsigned int rate) ++{ ++ struct elantech_data *etd = psmouse->private; ++ ++ etd->original_set_rate(psmouse, rate); ++ if (elantech_write_reg(psmouse, 0x07, etd->reg_07)) ++ psmouse_err(psmouse, "restoring reg_07 failed\n"); ++} ++ ++/* + * Put the touchpad into absolute mode + */ + static int elantech_set_absolute_mode(struct psmouse *psmouse) +@@ -1015,6 +1030,8 @@ static int elantech_get_resolution_v4(struct psmouse *psmouse, + * Asus K53SV 0x450f01 78, 15, 0c 2 hw buttons + * Asus G46VW 0x460f02 00, 18, 0c 2 hw buttons + * Asus G750JX 0x360f00 00, 16, 0c 2 hw buttons ++ * Asus TP500LN 0x381f17 10, 14, 0e clickpad ++ * Asus X750JN 0x381f17 10, 14, 0e clickpad + * Asus UX31 0x361f00 20, 15, 0e clickpad + * Asus UX32VD 0x361f02 00, 15, 0e clickpad + * Avatar AVIU-145A2 0x361f00 ? clickpad +@@ -1490,6 +1507,11 @@ int elantech_init(struct psmouse *psmouse) + goto init_fail; + } + ++ if (etd->fw_version == 0x381f17) { ++ etd->original_set_rate = psmouse->set_rate; ++ psmouse->set_rate = elantech_set_rate_restore_reg_07; ++ } ++ + if (elantech_set_input_params(psmouse)) { + psmouse_err(psmouse, "failed to query touchpad range.\n"); + goto init_fail; +diff --git a/drivers/input/mouse/elantech.h b/drivers/input/mouse/elantech.h +index 9e0e2a1f340d..59263a3a8667 100644 +--- a/drivers/input/mouse/elantech.h ++++ b/drivers/input/mouse/elantech.h +@@ -139,6 +139,7 @@ struct elantech_data { + struct finger_pos mt[ETP_MAX_FINGERS]; + unsigned char parity[256]; + int (*send_cmd)(struct psmouse *psmouse, unsigned char c, unsigned char *param); ++ void (*original_set_rate)(struct psmouse *psmouse, unsigned int rate); + }; + + #ifdef CONFIG_MOUSE_PS2_ELANTECH +diff --git a/drivers/md/dm-crypt.c b/drivers/md/dm-crypt.c +index 4a8d19d0a5a4..5a4cda24e302 100644 +--- a/drivers/md/dm-crypt.c ++++ b/drivers/md/dm-crypt.c +@@ -915,11 +915,10 @@ static int crypt_convert(struct crypt_config *cc, + + switch (r) { + /* async */ ++ case -EINPROGRESS: + case -EBUSY: + wait_for_completion(&ctx->restart); + reinit_completion(&ctx->restart); +- /* fall through*/ +- case -EINPROGRESS: + ctx->req = NULL; + ctx->cc_sector++; + continue; +@@ -1314,10 +1313,8 @@ static void kcryptd_async_done(struct crypto_async_request *async_req, + struct dm_crypt_io *io = container_of(ctx, struct dm_crypt_io, ctx); + struct crypt_config *cc = io->cc; + +- if (error == -EINPROGRESS) { +- complete(&ctx->restart); ++ if (error == -EINPROGRESS) + return; +- } + + if (!error && cc->iv_gen_ops && cc->iv_gen_ops->post) + error = cc->iv_gen_ops->post(cc, iv_of_dmreq(cc, dmreq), dmreq); +@@ -1328,12 +1325,15 @@ static void kcryptd_async_done(struct crypto_async_request *async_req, + mempool_free(req_of_dmreq(cc, dmreq), cc->req_pool); + + if (!atomic_dec_and_test(&ctx->cc_pending)) +- return; ++ goto done; + + if (bio_data_dir(io->base_bio) == READ) + kcryptd_crypt_read_done(io); + else + kcryptd_crypt_write_io_submit(io, 1); ++done: ++ if (!completion_done(&ctx->restart)) ++ complete(&ctx->restart); + } + + static void kcryptd_crypt(struct work_struct *work) +diff --git a/drivers/md/raid0.c b/drivers/md/raid0.c +index 407a99e46f69..683e685ed697 100644 +--- a/drivers/md/raid0.c ++++ b/drivers/md/raid0.c +@@ -320,7 +320,7 @@ static struct strip_zone *find_zone(struct r0conf *conf, + + /* + * remaps the bio to the target device. we separate two flows. +- * power 2 flow and a general flow for the sake of perfromance ++ * power 2 flow and a general flow for the sake of performance + */ + static struct md_rdev *map_sector(struct mddev *mddev, struct strip_zone *zone, + sector_t sector, sector_t *sector_offset) +@@ -538,6 +538,7 @@ static void raid0_make_request(struct mddev *mddev, struct bio *bio) + split = bio; + } + ++ sector = bio->bi_iter.bi_sector; + zone = find_zone(mddev->private, §or); + tmp_dev = map_sector(mddev, zone, sector, §or); + split->bi_bdev = tmp_dev->bdev; +diff --git a/drivers/media/usb/stk1160/stk1160-v4l.c b/drivers/media/usb/stk1160/stk1160-v4l.c +index c45c9881bb5f..4572530346fb 100644 +--- a/drivers/media/usb/stk1160/stk1160-v4l.c ++++ b/drivers/media/usb/stk1160/stk1160-v4l.c +@@ -244,6 +244,11 @@ static int stk1160_stop_streaming(struct stk1160 *dev) + if (mutex_lock_interruptible(&dev->v4l_lock)) + return -ERESTARTSYS; + ++ /* ++ * Once URBs are cancelled, the URB complete handler ++ * won't be running. This is required to safely release the ++ * current buffer (dev->isoc_ctl.buf). ++ */ + stk1160_cancel_isoc(dev); + + /* +@@ -624,8 +629,16 @@ void stk1160_clear_queue(struct stk1160 *dev) + stk1160_info("buffer [%p/%d] aborted\n", + buf, buf->vb.v4l2_buf.index); + } +- /* It's important to clear current buffer */ +- dev->isoc_ctl.buf = NULL; ++ ++ /* It's important to release the current buffer */ ++ if (dev->isoc_ctl.buf) { ++ buf = dev->isoc_ctl.buf; ++ dev->isoc_ctl.buf = NULL; ++ ++ vb2_buffer_done(&buf->vb, VB2_BUF_STATE_ERROR); ++ stk1160_info("buffer [%p/%d] aborted\n", ++ buf, buf->vb.v4l2_buf.index); ++ } + spin_unlock_irqrestore(&dev->buf_lock, flags); + } + +diff --git a/drivers/memstick/core/mspro_block.c b/drivers/memstick/core/mspro_block.c +index fc145d202c46..922a750640e8 100644 +--- a/drivers/memstick/core/mspro_block.c ++++ b/drivers/memstick/core/mspro_block.c +@@ -758,7 +758,7 @@ static int mspro_block_complete_req(struct memstick_dev *card, int error) + + if (error || (card->current_mrq.tpc == MSPRO_CMD_STOP)) { + if (msb->data_dir == READ) { +- for (cnt = 0; cnt < msb->current_seg; cnt++) ++ for (cnt = 0; cnt < msb->current_seg; cnt++) { + t_len += msb->req_sg[cnt].length + / msb->page_size; + +@@ -766,6 +766,7 @@ static int mspro_block_complete_req(struct memstick_dev *card, int error) + t_len += msb->current_page - 1; + + t_len *= msb->page_size; ++ } + } + } else + t_len = blk_rq_bytes(msb->block_req); +diff --git a/drivers/mtd/ubi/attach.c b/drivers/mtd/ubi/attach.c +index 6f27d9a1be3b..21841fe25ad3 100644 +--- a/drivers/mtd/ubi/attach.c ++++ b/drivers/mtd/ubi/attach.c +@@ -408,7 +408,7 @@ int ubi_compare_lebs(struct ubi_device *ubi, const struct ubi_ainf_peb *aeb, + second_is_newer = !second_is_newer; + } else { + dbg_bld("PEB %d CRC is OK", pnum); +- bitflips = !!err; ++ bitflips |= !!err; + } + mutex_unlock(&ubi->buf_mutex); + +diff --git a/drivers/mtd/ubi/cdev.c b/drivers/mtd/ubi/cdev.c +index 8ca49f2043e4..4cbbd5531133 100644 +--- a/drivers/mtd/ubi/cdev.c ++++ b/drivers/mtd/ubi/cdev.c +@@ -451,7 +451,7 @@ static long vol_cdev_ioctl(struct file *file, unsigned int cmd, + /* Validate the request */ + err = -EINVAL; + if (req.lnum < 0 || req.lnum >= vol->reserved_pebs || +- req.bytes < 0 || req.lnum >= vol->usable_leb_size) ++ req.bytes < 0 || req.bytes > vol->usable_leb_size) + break; + + err = get_exclusive(desc); +diff --git a/drivers/mtd/ubi/eba.c b/drivers/mtd/ubi/eba.c +index 0e11671dadc4..930cf2c77abb 100644 +--- a/drivers/mtd/ubi/eba.c ++++ b/drivers/mtd/ubi/eba.c +@@ -1362,7 +1362,8 @@ int ubi_eba_init(struct ubi_device *ubi, struct ubi_attach_info *ai) + * during re-size. + */ + ubi_move_aeb_to_list(av, aeb, &ai->erase); +- vol->eba_tbl[aeb->lnum] = aeb->pnum; ++ else ++ vol->eba_tbl[aeb->lnum] = aeb->pnum; + } + } + +diff --git a/drivers/mtd/ubi/wl.c b/drivers/mtd/ubi/wl.c +index 68b924ec222e..c6b0b078ab99 100644 +--- a/drivers/mtd/ubi/wl.c ++++ b/drivers/mtd/ubi/wl.c +@@ -995,7 +995,7 @@ static int wear_leveling_worker(struct ubi_device *ubi, struct ubi_work *wrk, + int cancel) + { + int err, scrubbing = 0, torture = 0, protect = 0, erroneous = 0; +- int vol_id = -1, uninitialized_var(lnum); ++ int vol_id = -1, lnum = -1; + #ifdef CONFIG_MTD_UBI_FASTMAP + int anchor = wrk->anchor; + #endif +diff --git a/drivers/net/ethernet/intel/e1000/e1000_main.c b/drivers/net/ethernet/intel/e1000/e1000_main.c +index 46e6544ed1b7..b655fe4f4c2e 100644 +--- a/drivers/net/ethernet/intel/e1000/e1000_main.c ++++ b/drivers/net/ethernet/intel/e1000/e1000_main.c +@@ -144,6 +144,11 @@ static bool e1000_clean_rx_irq(struct e1000_adapter *adapter, + static bool e1000_clean_jumbo_rx_irq(struct e1000_adapter *adapter, + struct e1000_rx_ring *rx_ring, + int *work_done, int work_to_do); ++static void e1000_alloc_dummy_rx_buffers(struct e1000_adapter *adapter, ++ struct e1000_rx_ring *rx_ring, ++ int cleaned_count) ++{ ++} + static void e1000_alloc_rx_buffers(struct e1000_adapter *adapter, + struct e1000_rx_ring *rx_ring, + int cleaned_count); +@@ -3531,8 +3536,11 @@ static int e1000_change_mtu(struct net_device *netdev, int new_mtu) + msleep(1); + /* e1000_down has a dependency on max_frame_size */ + hw->max_frame_size = max_frame; +- if (netif_running(netdev)) ++ if (netif_running(netdev)) { ++ /* prevent buffers from being reallocated */ ++ adapter->alloc_rx_buf = e1000_alloc_dummy_rx_buffers; + e1000_down(adapter); ++ } + + /* NOTE: netdev_alloc_skb reserves 16 bytes, and typically NET_IP_ALIGN + * means we reserve 2 more, this pushes us to allocate from the next +diff --git a/drivers/net/wireless/rtlwifi/rtl8192cu/sw.c b/drivers/net/wireless/rtlwifi/rtl8192cu/sw.c +index f58316769159..66c92a16da29 100644 +--- a/drivers/net/wireless/rtlwifi/rtl8192cu/sw.c ++++ b/drivers/net/wireless/rtlwifi/rtl8192cu/sw.c +@@ -314,6 +314,7 @@ static struct usb_device_id rtl8192c_usb_ids[] = { + {RTL_USB_DEVICE(0x07b8, 0x8188, rtl92cu_hal_cfg)}, /*Abocom - Abocom*/ + {RTL_USB_DEVICE(0x07b8, 0x8189, rtl92cu_hal_cfg)}, /*Funai - Abocom*/ + {RTL_USB_DEVICE(0x0846, 0x9041, rtl92cu_hal_cfg)}, /*NetGear WNA1000M*/ ++ {RTL_USB_DEVICE(0x0b05, 0x17ba, rtl92cu_hal_cfg)}, /*ASUS-Edimax*/ + {RTL_USB_DEVICE(0x0bda, 0x5088, rtl92cu_hal_cfg)}, /*Thinkware-CC&C*/ + {RTL_USB_DEVICE(0x0df6, 0x0052, rtl92cu_hal_cfg)}, /*Sitecom - Edimax*/ + {RTL_USB_DEVICE(0x0df6, 0x005c, rtl92cu_hal_cfg)}, /*Sitecom - Edimax*/ +@@ -370,6 +371,7 @@ static struct usb_device_id rtl8192c_usb_ids[] = { + {RTL_USB_DEVICE(0x2001, 0x3307, rtl92cu_hal_cfg)}, /*D-Link-Cameo*/ + {RTL_USB_DEVICE(0x2001, 0x3309, rtl92cu_hal_cfg)}, /*D-Link-Alpha*/ + {RTL_USB_DEVICE(0x2001, 0x330a, rtl92cu_hal_cfg)}, /*D-Link-Alpha*/ ++ {RTL_USB_DEVICE(0x2001, 0x330d, rtl92cu_hal_cfg)}, /*D-Link DWA-131 */ + {RTL_USB_DEVICE(0x2019, 0xab2b, rtl92cu_hal_cfg)}, /*Planex -Abocom*/ + {RTL_USB_DEVICE(0x20f4, 0x624d, rtl92cu_hal_cfg)}, /*TRENDNet*/ + {RTL_USB_DEVICE(0x2357, 0x0100, rtl92cu_hal_cfg)}, /*TP-Link WN8200ND*/ +diff --git a/drivers/net/wireless/ti/wl18xx/debugfs.c b/drivers/net/wireless/ti/wl18xx/debugfs.c +index 7f1669cdea09..779dc2b2ca75 100644 +--- a/drivers/net/wireless/ti/wl18xx/debugfs.c ++++ b/drivers/net/wireless/ti/wl18xx/debugfs.c +@@ -136,7 +136,7 @@ WL18XX_DEBUGFS_FWSTATS_FILE(rx_filter, protection_filter, "%u"); + WL18XX_DEBUGFS_FWSTATS_FILE(rx_filter, accum_arp_pend_requests, "%u"); + WL18XX_DEBUGFS_FWSTATS_FILE(rx_filter, max_arp_queue_dep, "%u"); + +-WL18XX_DEBUGFS_FWSTATS_FILE(rx_rate, rx_frames_per_rates, "%u"); ++WL18XX_DEBUGFS_FWSTATS_FILE_ARRAY(rx_rate, rx_frames_per_rates, 50); + + WL18XX_DEBUGFS_FWSTATS_FILE_ARRAY(aggr_size, tx_agg_vs_rate, + AGGR_STATS_TX_AGG*AGGR_STATS_TX_RATE); +diff --git a/drivers/net/wireless/ti/wlcore/debugfs.h b/drivers/net/wireless/ti/wlcore/debugfs.h +index f7381dd69009..1bce4325e86b 100644 +--- a/drivers/net/wireless/ti/wlcore/debugfs.h ++++ b/drivers/net/wireless/ti/wlcore/debugfs.h +@@ -26,8 +26,8 @@ + + #include "wlcore.h" + +-int wl1271_format_buffer(char __user *userbuf, size_t count, +- loff_t *ppos, char *fmt, ...); ++__printf(4, 5) int wl1271_format_buffer(char __user *userbuf, size_t count, ++ loff_t *ppos, char *fmt, ...); + + int wl1271_debugfs_init(struct wl1271 *wl); + void wl1271_debugfs_exit(struct wl1271 *wl); +diff --git a/drivers/platform/x86/compal-laptop.c b/drivers/platform/x86/compal-laptop.c +index 7297df2ebf50..2d9d1985adc1 100644 +--- a/drivers/platform/x86/compal-laptop.c ++++ b/drivers/platform/x86/compal-laptop.c +@@ -1037,7 +1037,9 @@ static int compal_probe(struct platform_device *pdev) + + /* Power supply */ + initialize_power_supply_data(data); +- power_supply_register(&compal_device->dev, &data->psy); ++ err = power_supply_register(&compal_device->dev, &data->psy); ++ if (err < 0) ++ goto remove; + + platform_set_drvdata(pdev, data); + +diff --git a/drivers/power/lp8788-charger.c b/drivers/power/lp8788-charger.c +index ed49b50b220b..72da2a6c22db 100644 +--- a/drivers/power/lp8788-charger.c ++++ b/drivers/power/lp8788-charger.c +@@ -417,8 +417,10 @@ static int lp8788_psy_register(struct platform_device *pdev, + pchg->battery.num_properties = ARRAY_SIZE(lp8788_battery_prop); + pchg->battery.get_property = lp8788_battery_get_property; + +- if (power_supply_register(&pdev->dev, &pchg->battery)) ++ if (power_supply_register(&pdev->dev, &pchg->battery)) { ++ power_supply_unregister(&pchg->charger); + return -EPERM; ++ } + + return 0; + } +diff --git a/drivers/power/twl4030_madc_battery.c b/drivers/power/twl4030_madc_battery.c +index 7ef445a6cfa6..cf907609ec49 100644 +--- a/drivers/power/twl4030_madc_battery.c ++++ b/drivers/power/twl4030_madc_battery.c +@@ -192,6 +192,7 @@ static int twl4030_madc_battery_probe(struct platform_device *pdev) + { + struct twl4030_madc_battery *twl4030_madc_bat; + struct twl4030_madc_bat_platform_data *pdata = pdev->dev.platform_data; ++ int ret = 0; + + twl4030_madc_bat = kzalloc(sizeof(*twl4030_madc_bat), GFP_KERNEL); + if (!twl4030_madc_bat) +@@ -216,9 +217,11 @@ static int twl4030_madc_battery_probe(struct platform_device *pdev) + + twl4030_madc_bat->pdata = pdata; + platform_set_drvdata(pdev, twl4030_madc_bat); +- power_supply_register(&pdev->dev, &twl4030_madc_bat->psy); ++ ret = power_supply_register(&pdev->dev, &twl4030_madc_bat->psy); ++ if (ret < 0) ++ kfree(twl4030_madc_bat); + +- return 0; ++ return ret; + } + + static int twl4030_madc_battery_remove(struct platform_device *pdev) +diff --git a/drivers/scsi/bfa/bfa_ioc.c b/drivers/scsi/bfa/bfa_ioc.c +index 65180e15de6e..50c75e1fbf8a 100644 +--- a/drivers/scsi/bfa/bfa_ioc.c ++++ b/drivers/scsi/bfa/bfa_ioc.c +@@ -7006,7 +7006,7 @@ bfa_flash_sem_get(void __iomem *bar) + while (!bfa_raw_sem_get(bar)) { + if (--n <= 0) + return BFA_STATUS_BADFLASH; +- udelay(10000); ++ mdelay(10); + } + return BFA_STATUS_OK; + } +diff --git a/drivers/scsi/mvsas/mv_sas.c b/drivers/scsi/mvsas/mv_sas.c +index 6c1f223a8e1d..4c0b8b4e1d40 100644 +--- a/drivers/scsi/mvsas/mv_sas.c ++++ b/drivers/scsi/mvsas/mv_sas.c +@@ -441,14 +441,11 @@ static u32 mvs_get_ncq_tag(struct sas_task *task, u32 *tag) + static int mvs_task_prep_ata(struct mvs_info *mvi, + struct mvs_task_exec_info *tei) + { +- struct sas_ha_struct *sha = mvi->sas; + struct sas_task *task = tei->task; + struct domain_device *dev = task->dev; + struct mvs_device *mvi_dev = dev->lldd_dev; + struct mvs_cmd_hdr *hdr = tei->hdr; + struct asd_sas_port *sas_port = dev->port; +- struct sas_phy *sphy = dev->phy; +- struct asd_sas_phy *sas_phy = sha->sas_phy[sphy->number]; + struct mvs_slot_info *slot; + void *buf_prd; + u32 tag = tei->tag, hdr_tag; +@@ -468,7 +465,7 @@ static int mvs_task_prep_ata(struct mvs_info *mvi, + slot->tx = mvi->tx_prod; + del_q = TXQ_MODE_I | tag | + (TXQ_CMD_STP << TXQ_CMD_SHIFT) | +- (MVS_PHY_ID << TXQ_PHY_SHIFT) | ++ ((sas_port->phy_mask & TXQ_PHY_MASK) << TXQ_PHY_SHIFT) | + (mvi_dev->taskfileset << TXQ_SRS_SHIFT); + mvi->tx[mvi->tx_prod] = cpu_to_le32(del_q); + +diff --git a/drivers/scsi/storvsc_drv.c b/drivers/scsi/storvsc_drv.c +index 86b05151fdab..97892f258043 100644 +--- a/drivers/scsi/storvsc_drv.c ++++ b/drivers/scsi/storvsc_drv.c +@@ -739,21 +739,22 @@ static unsigned int copy_to_bounce_buffer(struct scatterlist *orig_sgl, + if (bounce_sgl[j].length == PAGE_SIZE) { + /* full..move to next entry */ + sg_kunmap_atomic(bounce_addr); ++ bounce_addr = 0; + j++; ++ } + +- /* if we need to use another bounce buffer */ +- if (srclen || i != orig_sgl_count - 1) +- bounce_addr = sg_kmap_atomic(bounce_sgl,j); ++ /* if we need to use another bounce buffer */ ++ if (srclen && bounce_addr == 0) ++ bounce_addr = sg_kmap_atomic(bounce_sgl, j); + +- } else if (srclen == 0 && i == orig_sgl_count - 1) { +- /* unmap the last bounce that is < PAGE_SIZE */ +- sg_kunmap_atomic(bounce_addr); +- } + } + + sg_kunmap_atomic(src_addr - orig_sgl[i].offset); + } + ++ if (bounce_addr) ++ sg_kunmap_atomic(bounce_addr); ++ + local_irq_restore(flags); + + return total_copied; +diff --git a/drivers/spi/spidev.c b/drivers/spi/spidev.c +index d7c6e36021e8..2fe5b61d886a 100644 +--- a/drivers/spi/spidev.c ++++ b/drivers/spi/spidev.c +@@ -243,7 +243,10 @@ static int spidev_message(struct spidev_data *spidev, + k_tmp->len = u_tmp->len; + + total += k_tmp->len; +- if (total > bufsiz) { ++ /* Check total length of transfers. Also check each ++ * transfer length to avoid arithmetic overflow. ++ */ ++ if (total > bufsiz || k_tmp->len > bufsiz) { + status = -EMSGSIZE; + goto done; + } +diff --git a/drivers/target/target_core_file.c b/drivers/target/target_core_file.c +index 41eff7d64cb8..b199f1e21d0e 100644 +--- a/drivers/target/target_core_file.c ++++ b/drivers/target/target_core_file.c +@@ -263,40 +263,32 @@ static int fd_do_prot_rw(struct se_cmd *cmd, struct fd_prot *fd_prot, + struct se_device *se_dev = cmd->se_dev; + struct fd_dev *dev = FD_DEV(se_dev); + struct file *prot_fd = dev->fd_prot_file; +- struct scatterlist *sg; + loff_t pos = (cmd->t_task_lba * se_dev->prot_length); + unsigned char *buf; +- u32 prot_size, len, size; +- int rc, ret = 1, i; ++ u32 prot_size; ++ int rc, ret = 1; + + prot_size = (cmd->data_length / se_dev->dev_attrib.block_size) * + se_dev->prot_length; + + if (!is_write) { +- fd_prot->prot_buf = vzalloc(prot_size); ++ fd_prot->prot_buf = kzalloc(prot_size, GFP_KERNEL); + if (!fd_prot->prot_buf) { + pr_err("Unable to allocate fd_prot->prot_buf\n"); + return -ENOMEM; + } + buf = fd_prot->prot_buf; + +- fd_prot->prot_sg_nents = cmd->t_prot_nents; +- fd_prot->prot_sg = kzalloc(sizeof(struct scatterlist) * +- fd_prot->prot_sg_nents, GFP_KERNEL); ++ fd_prot->prot_sg_nents = 1; ++ fd_prot->prot_sg = kzalloc(sizeof(struct scatterlist), ++ GFP_KERNEL); + if (!fd_prot->prot_sg) { + pr_err("Unable to allocate fd_prot->prot_sg\n"); +- vfree(fd_prot->prot_buf); ++ kfree(fd_prot->prot_buf); + return -ENOMEM; + } +- size = prot_size; +- +- for_each_sg(fd_prot->prot_sg, sg, fd_prot->prot_sg_nents, i) { +- +- len = min_t(u32, PAGE_SIZE, size); +- sg_set_buf(sg, buf, len); +- size -= len; +- buf += len; +- } ++ sg_init_table(fd_prot->prot_sg, fd_prot->prot_sg_nents); ++ sg_set_buf(fd_prot->prot_sg, buf, prot_size); + } + + if (is_write) { +@@ -317,7 +309,7 @@ static int fd_do_prot_rw(struct se_cmd *cmd, struct fd_prot *fd_prot, + + if (is_write || ret < 0) { + kfree(fd_prot->prot_sg); +- vfree(fd_prot->prot_buf); ++ kfree(fd_prot->prot_buf); + } + + return ret; +@@ -652,11 +644,11 @@ fd_execute_rw(struct se_cmd *cmd, struct scatterlist *sgl, u32 sgl_nents, + 0, fd_prot.prot_sg, 0); + if (rc) { + kfree(fd_prot.prot_sg); +- vfree(fd_prot.prot_buf); ++ kfree(fd_prot.prot_buf); + return rc; + } + kfree(fd_prot.prot_sg); +- vfree(fd_prot.prot_buf); ++ kfree(fd_prot.prot_buf); + } + } else { + memset(&fd_prot, 0, sizeof(struct fd_prot)); +@@ -672,7 +664,7 @@ fd_execute_rw(struct se_cmd *cmd, struct scatterlist *sgl, u32 sgl_nents, + 0, fd_prot.prot_sg, 0); + if (rc) { + kfree(fd_prot.prot_sg); +- vfree(fd_prot.prot_buf); ++ kfree(fd_prot.prot_buf); + return rc; + } + } +@@ -703,7 +695,7 @@ fd_execute_rw(struct se_cmd *cmd, struct scatterlist *sgl, u32 sgl_nents, + + if (ret < 0) { + kfree(fd_prot.prot_sg); +- vfree(fd_prot.prot_buf); ++ kfree(fd_prot.prot_buf); + return TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE; + } + +diff --git a/drivers/target/target_core_sbc.c b/drivers/target/target_core_sbc.c +index 68511e83486b..f89b24a09b19 100644 +--- a/drivers/target/target_core_sbc.c ++++ b/drivers/target/target_core_sbc.c +@@ -314,7 +314,7 @@ sbc_setup_write_same(struct se_cmd *cmd, unsigned char *flags, struct sbc_ops *o + return 0; + } + +-static sense_reason_t xdreadwrite_callback(struct se_cmd *cmd) ++static sense_reason_t xdreadwrite_callback(struct se_cmd *cmd, bool success) + { + unsigned char *buf, *addr; + struct scatterlist *sg; +@@ -378,7 +378,7 @@ sbc_execute_rw(struct se_cmd *cmd) + cmd->data_direction); + } + +-static sense_reason_t compare_and_write_post(struct se_cmd *cmd) ++static sense_reason_t compare_and_write_post(struct se_cmd *cmd, bool success) + { + struct se_device *dev = cmd->se_dev; + +@@ -401,7 +401,7 @@ static sense_reason_t compare_and_write_post(struct se_cmd *cmd) + return TCM_NO_SENSE; + } + +-static sense_reason_t compare_and_write_callback(struct se_cmd *cmd) ++static sense_reason_t compare_and_write_callback(struct se_cmd *cmd, bool success) + { + struct se_device *dev = cmd->se_dev; + struct scatterlist *write_sg = NULL, *sg; +@@ -416,11 +416,16 @@ static sense_reason_t compare_and_write_callback(struct se_cmd *cmd) + + /* + * Handle early failure in transport_generic_request_failure(), +- * which will not have taken ->caw_mutex yet.. ++ * which will not have taken ->caw_sem yet.. + */ +- if (!cmd->t_data_sg || !cmd->t_bidi_data_sg) ++ if (!success && (!cmd->t_data_sg || !cmd->t_bidi_data_sg)) + return TCM_NO_SENSE; + /* ++ * Handle special case for zero-length COMPARE_AND_WRITE ++ */ ++ if (!cmd->data_length) ++ goto out; ++ /* + * Immediately exit + release dev->caw_sem if command has already + * been failed with a non-zero SCSI status. + */ +diff --git a/drivers/target/target_core_transport.c b/drivers/target/target_core_transport.c +index 9e54c0fe718d..6fc38903046c 100644 +--- a/drivers/target/target_core_transport.c ++++ b/drivers/target/target_core_transport.c +@@ -1600,11 +1600,11 @@ void transport_generic_request_failure(struct se_cmd *cmd, + transport_complete_task_attr(cmd); + /* + * Handle special case for COMPARE_AND_WRITE failure, where the +- * callback is expected to drop the per device ->caw_mutex. ++ * callback is expected to drop the per device ->caw_sem. + */ + if ((cmd->se_cmd_flags & SCF_COMPARE_AND_WRITE) && + cmd->transport_complete_callback) +- cmd->transport_complete_callback(cmd); ++ cmd->transport_complete_callback(cmd, false); + + switch (sense_reason) { + case TCM_NON_EXISTENT_LUN: +@@ -1941,8 +1941,12 @@ static void target_complete_ok_work(struct work_struct *work) + if (cmd->transport_complete_callback) { + sense_reason_t rc; + +- rc = cmd->transport_complete_callback(cmd); ++ rc = cmd->transport_complete_callback(cmd, true); + if (!rc && !(cmd->se_cmd_flags & SCF_COMPARE_AND_WRITE_POST)) { ++ if ((cmd->se_cmd_flags & SCF_COMPARE_AND_WRITE) && ++ !cmd->data_length) ++ goto queue_rsp; ++ + return; + } else if (rc) { + ret = transport_send_check_condition_and_sense(cmd, +@@ -1956,6 +1960,7 @@ static void target_complete_ok_work(struct work_struct *work) + } + } + ++queue_rsp: + switch (cmd->data_direction) { + case DMA_FROM_DEVICE: + spin_lock(&cmd->se_lun->lun_sep_lock); +@@ -2044,6 +2049,16 @@ static inline void transport_reset_sgl_orig(struct se_cmd *cmd) + static inline void transport_free_pages(struct se_cmd *cmd) + { + if (cmd->se_cmd_flags & SCF_PASSTHROUGH_SG_TO_MEM_NOALLOC) { ++ /* ++ * Release special case READ buffer payload required for ++ * SG_TO_MEM_NOALLOC to function with COMPARE_AND_WRITE ++ */ ++ if (cmd->se_cmd_flags & SCF_COMPARE_AND_WRITE) { ++ transport_free_sgl(cmd->t_bidi_data_sg, ++ cmd->t_bidi_data_nents); ++ cmd->t_bidi_data_sg = NULL; ++ cmd->t_bidi_data_nents = 0; ++ } + transport_reset_sgl_orig(cmd); + return; + } +@@ -2192,6 +2207,7 @@ sense_reason_t + transport_generic_new_cmd(struct se_cmd *cmd) + { + int ret = 0; ++ bool zero_flag = !(cmd->se_cmd_flags & SCF_SCSI_DATA_CDB); + + /* + * Determine is the TCM fabric module has already allocated physical +@@ -2200,7 +2216,6 @@ transport_generic_new_cmd(struct se_cmd *cmd) + */ + if (!(cmd->se_cmd_flags & SCF_PASSTHROUGH_SG_TO_MEM_NOALLOC) && + cmd->data_length) { +- bool zero_flag = !(cmd->se_cmd_flags & SCF_SCSI_DATA_CDB); + + if ((cmd->se_cmd_flags & SCF_BIDI) || + (cmd->se_cmd_flags & SCF_COMPARE_AND_WRITE)) { +@@ -2223,6 +2238,20 @@ transport_generic_new_cmd(struct se_cmd *cmd) + cmd->data_length, zero_flag); + if (ret < 0) + return TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE; ++ } else if ((cmd->se_cmd_flags & SCF_COMPARE_AND_WRITE) && ++ cmd->data_length) { ++ /* ++ * Special case for COMPARE_AND_WRITE with fabrics ++ * using SCF_PASSTHROUGH_SG_TO_MEM_NOALLOC. ++ */ ++ u32 caw_length = cmd->t_task_nolb * ++ cmd->se_dev->dev_attrib.block_size; ++ ++ ret = target_alloc_sgl(&cmd->t_bidi_data_sg, ++ &cmd->t_bidi_data_nents, ++ caw_length, zero_flag); ++ if (ret < 0) ++ return TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE; + } + /* + * If this command is not a write we can execute it right here, +diff --git a/drivers/usb/class/cdc-wdm.c b/drivers/usb/class/cdc-wdm.c +index a051a7a2b1bd..a81f9dd7ee97 100644 +--- a/drivers/usb/class/cdc-wdm.c ++++ b/drivers/usb/class/cdc-wdm.c +@@ -245,7 +245,7 @@ static void wdm_int_callback(struct urb *urb) + case USB_CDC_NOTIFY_RESPONSE_AVAILABLE: + dev_dbg(&desc->intf->dev, + "NOTIFY_RESPONSE_AVAILABLE received: index %d len %d", +- dr->wIndex, dr->wLength); ++ le16_to_cpu(dr->wIndex), le16_to_cpu(dr->wLength)); + break; + + case USB_CDC_NOTIFY_NETWORK_CONNECTION: +@@ -262,7 +262,9 @@ static void wdm_int_callback(struct urb *urb) + clear_bit(WDM_POLL_RUNNING, &desc->flags); + dev_err(&desc->intf->dev, + "unknown notification %d received: index %d len %d\n", +- dr->bNotificationType, dr->wIndex, dr->wLength); ++ dr->bNotificationType, ++ le16_to_cpu(dr->wIndex), ++ le16_to_cpu(dr->wLength)); + goto exit; + } + +@@ -408,7 +410,7 @@ static ssize_t wdm_write + USB_RECIP_INTERFACE); + req->bRequest = USB_CDC_SEND_ENCAPSULATED_COMMAND; + req->wValue = 0; +- req->wIndex = desc->inum; ++ req->wIndex = desc->inum; /* already converted */ + req->wLength = cpu_to_le16(count); + set_bit(WDM_IN_USE, &desc->flags); + desc->outbuf = buf; +@@ -422,7 +424,7 @@ static ssize_t wdm_write + rv = usb_translate_errors(rv); + } else { + dev_dbg(&desc->intf->dev, "Tx URB has been submitted index=%d", +- req->wIndex); ++ le16_to_cpu(req->wIndex)); + } + out: + usb_autopm_put_interface(desc->intf); +@@ -820,7 +822,7 @@ static int wdm_create(struct usb_interface *intf, struct usb_endpoint_descriptor + desc->irq->bRequestType = (USB_DIR_IN | USB_TYPE_CLASS | USB_RECIP_INTERFACE); + desc->irq->bRequest = USB_CDC_GET_ENCAPSULATED_RESPONSE; + desc->irq->wValue = 0; +- desc->irq->wIndex = desc->inum; ++ desc->irq->wIndex = desc->inum; /* already converted */ + desc->irq->wLength = cpu_to_le16(desc->wMaxCommand); + + usb_fill_control_urb( +diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c +index d2bd9d7c8f4b..1847a7d38026 100644 +--- a/drivers/usb/core/hub.c ++++ b/drivers/usb/core/hub.c +@@ -3289,10 +3289,10 @@ int usb_port_resume(struct usb_device *udev, pm_message_t msg) + dev_dbg(hub->intfdev, "can't resume port %d, status %d\n", + port1, status); + } else { +- /* drive resume for at least 20 msec */ ++ /* drive resume for USB_RESUME_TIMEOUT msec */ + dev_dbg(&udev->dev, "usb %sresume\n", + (PMSG_IS_AUTO(msg) ? "auto-" : "")); +- msleep(25); ++ msleep(USB_RESUME_TIMEOUT); + + /* Virtual root hubs can trigger on GET_PORT_STATUS to + * stop resume signaling. Then finish the resume +diff --git a/drivers/usb/dwc2/hcd.c b/drivers/usb/dwc2/hcd.c +index 4d918ed8d343..0f9980088c08 100644 +--- a/drivers/usb/dwc2/hcd.c ++++ b/drivers/usb/dwc2/hcd.c +@@ -1501,7 +1501,7 @@ static int dwc2_hcd_hub_control(struct dwc2_hsotg *hsotg, u16 typereq, + dev_dbg(hsotg->dev, + "ClearPortFeature USB_PORT_FEAT_SUSPEND\n"); + writel(0, hsotg->regs + PCGCTL); +- usleep_range(20000, 40000); ++ msleep(USB_RESUME_TIMEOUT); + + hprt0 = dwc2_read_hprt0(hsotg); + hprt0 |= HPRT0_RES; +diff --git a/drivers/usb/gadget/composite.c b/drivers/usb/gadget/composite.c +index d742bed7a5fa..82df926c765d 100644 +--- a/drivers/usb/gadget/composite.c ++++ b/drivers/usb/gadget/composite.c +@@ -528,7 +528,7 @@ static int bos_desc(struct usb_composite_dev *cdev) + usb_ext->bLength = USB_DT_USB_EXT_CAP_SIZE; + usb_ext->bDescriptorType = USB_DT_DEVICE_CAPABILITY; + usb_ext->bDevCapabilityType = USB_CAP_TYPE_EXT; +- usb_ext->bmAttributes = cpu_to_le32(USB_LPM_SUPPORT); ++ usb_ext->bmAttributes = cpu_to_le32(USB_LPM_SUPPORT | USB_BESL_SUPPORT); + + /* + * The Superspeed USB Capability descriptor shall be implemented by all +diff --git a/drivers/usb/host/fotg210-hcd.c b/drivers/usb/host/fotg210-hcd.c +index 98a89d16cc3e..8aa4ba0a0c69 100644 +--- a/drivers/usb/host/fotg210-hcd.c ++++ b/drivers/usb/host/fotg210-hcd.c +@@ -1595,7 +1595,7 @@ static int fotg210_hub_control( + /* resume signaling for 20 msec */ + fotg210_writel(fotg210, temp | PORT_RESUME, status_reg); + fotg210->reset_done[wIndex] = jiffies +- + msecs_to_jiffies(20); ++ + msecs_to_jiffies(USB_RESUME_TIMEOUT); + break; + case USB_PORT_FEAT_C_SUSPEND: + clear_bit(wIndex, &fotg210->port_c_suspend); +diff --git a/drivers/usb/host/fusbh200-hcd.c b/drivers/usb/host/fusbh200-hcd.c +index ba9499060f63..3e3926aa584e 100644 +--- a/drivers/usb/host/fusbh200-hcd.c ++++ b/drivers/usb/host/fusbh200-hcd.c +@@ -1550,10 +1550,9 @@ static int fusbh200_hub_control ( + if ((temp & PORT_PE) == 0) + goto error; + +- /* resume signaling for 20 msec */ + fusbh200_writel(fusbh200, temp | PORT_RESUME, status_reg); + fusbh200->reset_done[wIndex] = jiffies +- + msecs_to_jiffies(20); ++ + msecs_to_jiffies(USB_RESUME_TIMEOUT); + break; + case USB_PORT_FEAT_C_SUSPEND: + clear_bit(wIndex, &fusbh200->port_c_suspend); +diff --git a/drivers/usb/host/isp116x-hcd.c b/drivers/usb/host/isp116x-hcd.c +index 240e792c81a7..b62298fe0be8 100644 +--- a/drivers/usb/host/isp116x-hcd.c ++++ b/drivers/usb/host/isp116x-hcd.c +@@ -1487,7 +1487,7 @@ static int isp116x_bus_resume(struct usb_hcd *hcd) + spin_unlock_irq(&isp116x->lock); + + hcd->state = HC_STATE_RESUMING; +- msleep(20); ++ msleep(USB_RESUME_TIMEOUT); + + /* Go operational */ + spin_lock_irq(&isp116x->lock); +diff --git a/drivers/usb/host/r8a66597-hcd.c b/drivers/usb/host/r8a66597-hcd.c +index 110b4b9ebeaa..f130bb2f7bbe 100644 +--- a/drivers/usb/host/r8a66597-hcd.c ++++ b/drivers/usb/host/r8a66597-hcd.c +@@ -2300,7 +2300,7 @@ static int r8a66597_bus_resume(struct usb_hcd *hcd) + rh->port &= ~USB_PORT_STAT_SUSPEND; + rh->port |= USB_PORT_STAT_C_SUSPEND << 16; + r8a66597_mdfy(r8a66597, RESUME, RESUME | UACT, dvstctr_reg); +- msleep(50); ++ msleep(USB_RESUME_TIMEOUT); + r8a66597_mdfy(r8a66597, UACT, RESUME | UACT, dvstctr_reg); + } + +diff --git a/drivers/usb/host/sl811-hcd.c b/drivers/usb/host/sl811-hcd.c +index a517151867af..0f53cc8c8ecf 100644 +--- a/drivers/usb/host/sl811-hcd.c ++++ b/drivers/usb/host/sl811-hcd.c +@@ -1259,7 +1259,7 @@ sl811h_hub_control( + sl811_write(sl811, SL11H_CTLREG1, sl811->ctrl1); + + mod_timer(&sl811->timer, jiffies +- + msecs_to_jiffies(20)); ++ + msecs_to_jiffies(USB_RESUME_TIMEOUT)); + break; + case USB_PORT_FEAT_POWER: + port_power(sl811, 0); +diff --git a/drivers/usb/host/uhci-hub.c b/drivers/usb/host/uhci-hub.c +index 93e17b12fb33..98c66d88ebde 100644 +--- a/drivers/usb/host/uhci-hub.c ++++ b/drivers/usb/host/uhci-hub.c +@@ -165,7 +165,7 @@ static void uhci_check_ports(struct uhci_hcd *uhci) + /* Port received a wakeup request */ + set_bit(port, &uhci->resuming_ports); + uhci->ports_timeout = jiffies + +- msecs_to_jiffies(25); ++ msecs_to_jiffies(USB_RESUME_TIMEOUT); + usb_hcd_start_port_resume( + &uhci_to_hcd(uhci)->self, port); + +@@ -337,7 +337,8 @@ static int uhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, + uhci_finish_suspend(uhci, port, port_addr); + + /* USB v2.0 7.1.7.5 */ +- uhci->ports_timeout = jiffies + msecs_to_jiffies(50); ++ uhci->ports_timeout = jiffies + ++ msecs_to_jiffies(USB_RESUME_TIMEOUT); + break; + case USB_PORT_FEAT_POWER: + /* UHCI has no power switching */ +diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c +index a95eee8ddc38..05185b9d4495 100644 +--- a/drivers/usb/host/xhci-ring.c ++++ b/drivers/usb/host/xhci-ring.c +@@ -1768,7 +1768,7 @@ static void handle_port_status(struct xhci_hcd *xhci, + } else { + xhci_dbg(xhci, "resume HS port %d\n", port_id); + bus_state->resume_done[faked_port_index] = jiffies + +- msecs_to_jiffies(20); ++ msecs_to_jiffies(USB_RESUME_TIMEOUT); + set_bit(faked_port_index, &bus_state->resuming_ports); + mod_timer(&hcd->rh_timer, + bus_state->resume_done[faked_port_index]); +diff --git a/drivers/usb/phy/phy.c b/drivers/usb/phy/phy.c +index 0180eef05656..964ebafe8b44 100644 +--- a/drivers/usb/phy/phy.c ++++ b/drivers/usb/phy/phy.c +@@ -78,7 +78,9 @@ static void devm_usb_phy_release(struct device *dev, void *res) + + static int devm_usb_phy_match(struct device *dev, void *res, void *match_data) + { +- return res == match_data; ++ struct usb_phy **phy = res; ++ ++ return *phy == match_data; + } + + /** +diff --git a/fs/binfmt_elf.c b/fs/binfmt_elf.c +index f4d7b2fc9ffb..78f46089a077 100644 +--- a/fs/binfmt_elf.c ++++ b/fs/binfmt_elf.c +@@ -751,6 +751,7 @@ static int load_elf_binary(struct linux_binprm *bprm) + i < loc->elf_ex.e_phnum; i++, elf_ppnt++) { + int elf_prot = 0, elf_flags; + unsigned long k, vaddr; ++ unsigned long total_size = 0; + + if (elf_ppnt->p_type != PT_LOAD) + continue; +@@ -815,10 +816,16 @@ static int load_elf_binary(struct linux_binprm *bprm) + #else + load_bias = ELF_PAGESTART(ELF_ET_DYN_BASE - vaddr); + #endif ++ total_size = total_mapping_size(elf_phdata, ++ loc->elf_ex.e_phnum); ++ if (!total_size) { ++ error = -EINVAL; ++ goto out_free_dentry; ++ } + } + + error = elf_map(bprm->file, load_bias + vaddr, elf_ppnt, +- elf_prot, elf_flags, 0); ++ elf_prot, elf_flags, total_size); + if (BAD_ADDR(error)) { + send_sig(SIGKILL, current, 0); + retval = IS_ERR((void *)error) ? +diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c +index d2f1c011d73a..794d7c6ea9ee 100644 +--- a/fs/btrfs/extent-tree.c ++++ b/fs/btrfs/extent-tree.c +@@ -6645,12 +6645,11 @@ static int __btrfs_free_reserved_extent(struct btrfs_root *root, + return -ENOSPC; + } + +- if (btrfs_test_opt(root, DISCARD)) +- ret = btrfs_discard_extent(root, start, len, NULL); +- + if (pin) + pin_down_extent(root, cache, start, len, 1); + else { ++ if (btrfs_test_opt(root, DISCARD)) ++ ret = btrfs_discard_extent(root, start, len, NULL); + btrfs_add_free_space(cache, start, len); + btrfs_update_reserved_bytes(cache, len, RESERVE_FREE); + } +diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c +index 0b72006aecbe..3e16042338e4 100644 +--- a/fs/btrfs/ioctl.c ++++ b/fs/btrfs/ioctl.c +@@ -2708,6 +2708,9 @@ static int btrfs_extent_same(struct inode *src, u64 loff, u64 len, + if (src == dst) + return -EINVAL; + ++ if (len == 0) ++ return 0; ++ + btrfs_double_lock(src, loff, dst, dst_loff, len); + + ret = extent_same_check_offsets(src, loff, len); +@@ -3226,6 +3229,11 @@ static noinline long btrfs_ioctl_clone(struct file *file, unsigned long srcfd, + if (off + len == src->i_size) + len = ALIGN(src->i_size, bs) - off; + ++ if (len == 0) { ++ ret = 0; ++ goto out_unlock; ++ } ++ + /* verify the end result is block aligned */ + if (!IS_ALIGNED(off, bs) || !IS_ALIGNED(off + len, bs) || + !IS_ALIGNED(destoff, bs)) +diff --git a/fs/btrfs/xattr.c b/fs/btrfs/xattr.c +index ad8328d797ea..488e987c3374 100644 +--- a/fs/btrfs/xattr.c ++++ b/fs/btrfs/xattr.c +@@ -324,22 +324,42 @@ const struct xattr_handler *btrfs_xattr_handlers[] = { + /* + * Check if the attribute is in a supported namespace. + * +- * This applied after the check for the synthetic attributes in the system ++ * This is applied after the check for the synthetic attributes in the system + * namespace. + */ +-static bool btrfs_is_valid_xattr(const char *name) ++static int btrfs_is_valid_xattr(const char *name) + { +- return !strncmp(name, XATTR_SECURITY_PREFIX, +- XATTR_SECURITY_PREFIX_LEN) || +- !strncmp(name, XATTR_SYSTEM_PREFIX, XATTR_SYSTEM_PREFIX_LEN) || +- !strncmp(name, XATTR_TRUSTED_PREFIX, XATTR_TRUSTED_PREFIX_LEN) || +- !strncmp(name, XATTR_USER_PREFIX, XATTR_USER_PREFIX_LEN) || +- !strncmp(name, XATTR_BTRFS_PREFIX, XATTR_BTRFS_PREFIX_LEN); ++ int len = strlen(name); ++ int prefixlen = 0; ++ ++ if (!strncmp(name, XATTR_SECURITY_PREFIX, ++ XATTR_SECURITY_PREFIX_LEN)) ++ prefixlen = XATTR_SECURITY_PREFIX_LEN; ++ else if (!strncmp(name, XATTR_SYSTEM_PREFIX, XATTR_SYSTEM_PREFIX_LEN)) ++ prefixlen = XATTR_SYSTEM_PREFIX_LEN; ++ else if (!strncmp(name, XATTR_TRUSTED_PREFIX, XATTR_TRUSTED_PREFIX_LEN)) ++ prefixlen = XATTR_TRUSTED_PREFIX_LEN; ++ else if (!strncmp(name, XATTR_USER_PREFIX, XATTR_USER_PREFIX_LEN)) ++ prefixlen = XATTR_USER_PREFIX_LEN; ++ else if (!strncmp(name, XATTR_BTRFS_PREFIX, XATTR_BTRFS_PREFIX_LEN)) ++ prefixlen = XATTR_BTRFS_PREFIX_LEN; ++ else ++ return -EOPNOTSUPP; ++ ++ /* ++ * The name cannot consist of just prefix ++ */ ++ if (len <= prefixlen) ++ return -EINVAL; ++ ++ return 0; + } + + ssize_t btrfs_getxattr(struct dentry *dentry, const char *name, + void *buffer, size_t size) + { ++ int ret; ++ + /* + * If this is a request for a synthetic attribute in the system.* + * namespace use the generic infrastructure to resolve a handler +@@ -348,8 +368,9 @@ ssize_t btrfs_getxattr(struct dentry *dentry, const char *name, + if (!strncmp(name, XATTR_SYSTEM_PREFIX, XATTR_SYSTEM_PREFIX_LEN)) + return generic_getxattr(dentry, name, buffer, size); + +- if (!btrfs_is_valid_xattr(name)) +- return -EOPNOTSUPP; ++ ret = btrfs_is_valid_xattr(name); ++ if (ret) ++ return ret; + return __btrfs_getxattr(dentry->d_inode, name, buffer, size); + } + +@@ -357,6 +378,7 @@ int btrfs_setxattr(struct dentry *dentry, const char *name, const void *value, + size_t size, int flags) + { + struct btrfs_root *root = BTRFS_I(dentry->d_inode)->root; ++ int ret; + + /* + * The permission on security.* and system.* is not checked +@@ -373,8 +395,9 @@ int btrfs_setxattr(struct dentry *dentry, const char *name, const void *value, + if (!strncmp(name, XATTR_SYSTEM_PREFIX, XATTR_SYSTEM_PREFIX_LEN)) + return generic_setxattr(dentry, name, value, size, flags); + +- if (!btrfs_is_valid_xattr(name)) +- return -EOPNOTSUPP; ++ ret = btrfs_is_valid_xattr(name); ++ if (ret) ++ return ret; + + if (!strncmp(name, XATTR_BTRFS_PREFIX, XATTR_BTRFS_PREFIX_LEN)) + return btrfs_set_prop(dentry->d_inode, name, +@@ -390,6 +413,7 @@ int btrfs_setxattr(struct dentry *dentry, const char *name, const void *value, + int btrfs_removexattr(struct dentry *dentry, const char *name) + { + struct btrfs_root *root = BTRFS_I(dentry->d_inode)->root; ++ int ret; + + /* + * The permission on security.* and system.* is not checked +@@ -406,8 +430,9 @@ int btrfs_removexattr(struct dentry *dentry, const char *name) + if (!strncmp(name, XATTR_SYSTEM_PREFIX, XATTR_SYSTEM_PREFIX_LEN)) + return generic_removexattr(dentry, name); + +- if (!btrfs_is_valid_xattr(name)) +- return -EOPNOTSUPP; ++ ret = btrfs_is_valid_xattr(name); ++ if (ret) ++ return ret; + + if (!strncmp(name, XATTR_BTRFS_PREFIX, XATTR_BTRFS_PREFIX_LEN)) + return btrfs_set_prop(dentry->d_inode, name, +diff --git a/fs/exec.c b/fs/exec.c +index ea4449d0536a..05f1942d7edb 100644 +--- a/fs/exec.c ++++ b/fs/exec.c +@@ -1268,6 +1268,53 @@ static void check_unsafe_exec(struct linux_binprm *bprm) + spin_unlock(&p->fs->lock); + } + ++static void bprm_fill_uid(struct linux_binprm *bprm) ++{ ++ struct inode *inode; ++ unsigned int mode; ++ kuid_t uid; ++ kgid_t gid; ++ ++ /* clear any previous set[ug]id data from a previous binary */ ++ bprm->cred->euid = current_euid(); ++ bprm->cred->egid = current_egid(); ++ ++ if (bprm->file->f_path.mnt->mnt_flags & MNT_NOSUID) ++ return; ++ ++ if (current->no_new_privs) ++ return; ++ ++ inode = file_inode(bprm->file); ++ mode = ACCESS_ONCE(inode->i_mode); ++ if (!(mode & (S_ISUID|S_ISGID))) ++ return; ++ ++ /* Be careful if suid/sgid is set */ ++ mutex_lock(&inode->i_mutex); ++ ++ /* reload atomically mode/uid/gid now that lock held */ ++ mode = inode->i_mode; ++ uid = inode->i_uid; ++ gid = inode->i_gid; ++ mutex_unlock(&inode->i_mutex); ++ ++ /* We ignore suid/sgid if there are no mappings for them in the ns */ ++ if (!kuid_has_mapping(bprm->cred->user_ns, uid) || ++ !kgid_has_mapping(bprm->cred->user_ns, gid)) ++ return; ++ ++ if (mode & S_ISUID) { ++ bprm->per_clear |= PER_CLEAR_ON_SETID; ++ bprm->cred->euid = uid; ++ } ++ ++ if ((mode & (S_ISGID | S_IXGRP)) == (S_ISGID | S_IXGRP)) { ++ bprm->per_clear |= PER_CLEAR_ON_SETID; ++ bprm->cred->egid = gid; ++ } ++} ++ + /* + * Fill the binprm structure from the inode. + * Check permissions, then read the first 128 (BINPRM_BUF_SIZE) bytes +@@ -1276,36 +1323,9 @@ static void check_unsafe_exec(struct linux_binprm *bprm) + */ + int prepare_binprm(struct linux_binprm *bprm) + { +- struct inode *inode = file_inode(bprm->file); +- umode_t mode = inode->i_mode; + int retval; + +- +- /* clear any previous set[ug]id data from a previous binary */ +- bprm->cred->euid = current_euid(); +- bprm->cred->egid = current_egid(); +- +- if (!(bprm->file->f_path.mnt->mnt_flags & MNT_NOSUID) && +- !current->no_new_privs && +- kuid_has_mapping(bprm->cred->user_ns, inode->i_uid) && +- kgid_has_mapping(bprm->cred->user_ns, inode->i_gid)) { +- /* Set-uid? */ +- if (mode & S_ISUID) { +- bprm->per_clear |= PER_CLEAR_ON_SETID; +- bprm->cred->euid = inode->i_uid; +- } +- +- /* Set-gid? */ +- /* +- * If setgid is set but no group execute bit then this +- * is a candidate for mandatory locking, not a setgid +- * executable. +- */ +- if ((mode & (S_ISGID | S_IXGRP)) == (S_ISGID | S_IXGRP)) { +- bprm->per_clear |= PER_CLEAR_ON_SETID; +- bprm->cred->egid = inode->i_gid; +- } +- } ++ bprm_fill_uid(bprm); + + /* fill in binprm security blob */ + retval = security_bprm_set_creds(bprm); +diff --git a/fs/ext4/namei.c b/fs/ext4/namei.c +index 2dcbfb6245d8..bc7e37bc0c5b 100644 +--- a/fs/ext4/namei.c ++++ b/fs/ext4/namei.c +@@ -1869,7 +1869,7 @@ static int ext4_add_entry(handle_t *handle, struct dentry *dentry, + struct inode *inode) + { + struct inode *dir = dentry->d_parent->d_inode; +- struct buffer_head *bh; ++ struct buffer_head *bh = NULL; + struct ext4_dir_entry_2 *de; + struct ext4_dir_entry_tail *t; + struct super_block *sb; +@@ -1893,14 +1893,14 @@ static int ext4_add_entry(handle_t *handle, struct dentry *dentry, + return retval; + if (retval == 1) { + retval = 0; +- return retval; ++ goto out; + } + } + + if (is_dx(dir)) { + retval = ext4_dx_add_entry(handle, dentry, inode); + if (!retval || (retval != ERR_BAD_DX_DIR)) +- return retval; ++ goto out; + ext4_clear_inode_flag(dir, EXT4_INODE_INDEX); + dx_fallback++; + ext4_mark_inode_dirty(handle, dir); +@@ -1912,14 +1912,15 @@ static int ext4_add_entry(handle_t *handle, struct dentry *dentry, + return PTR_ERR(bh); + + retval = add_dirent_to_buf(handle, dentry, inode, NULL, bh); +- if (retval != -ENOSPC) { +- brelse(bh); +- return retval; +- } ++ if (retval != -ENOSPC) ++ goto out; + + if (blocks == 1 && !dx_fallback && +- EXT4_HAS_COMPAT_FEATURE(sb, EXT4_FEATURE_COMPAT_DIR_INDEX)) +- return make_indexed_dir(handle, dentry, inode, bh); ++ EXT4_HAS_COMPAT_FEATURE(sb, EXT4_FEATURE_COMPAT_DIR_INDEX)) { ++ retval = make_indexed_dir(handle, dentry, inode, bh); ++ bh = NULL; /* make_indexed_dir releases bh */ ++ goto out; ++ } + brelse(bh); + } + bh = ext4_append(handle, dir, &block); +@@ -1935,6 +1936,7 @@ static int ext4_add_entry(handle_t *handle, struct dentry *dentry, + } + + retval = add_dirent_to_buf(handle, dentry, inode, de, bh); ++out: + brelse(bh); + if (retval == 0) + ext4_set_inode_state(inode, EXT4_STATE_NEWENTRY); +diff --git a/fs/namei.c b/fs/namei.c +index 0dd72c8e65fd..ccb8000f3459 100644 +--- a/fs/namei.c ++++ b/fs/namei.c +@@ -1545,7 +1545,8 @@ static inline int walk_component(struct nameidata *nd, struct path *path, + + if (should_follow_link(path->dentry, follow)) { + if (nd->flags & LOOKUP_RCU) { +- if (unlikely(unlazy_walk(nd, path->dentry))) { ++ if (unlikely(nd->path.mnt != path->mnt || ++ unlazy_walk(nd, path->dentry))) { + err = -ECHILD; + goto out_err; + } +@@ -2992,7 +2993,8 @@ finish_lookup: + + if (should_follow_link(path->dentry, !symlink_ok)) { + if (nd->flags & LOOKUP_RCU) { +- if (unlikely(unlazy_walk(nd, path->dentry))) { ++ if (unlikely(nd->path.mnt != path->mnt || ++ unlazy_walk(nd, path->dentry))) { + error = -ECHILD; + goto out; + } +diff --git a/fs/open.c b/fs/open.c +index 2ed7325f713e..17679f2b2f1c 100644 +--- a/fs/open.c ++++ b/fs/open.c +@@ -539,6 +539,7 @@ static int chown_common(struct path *path, uid_t user, gid_t group) + uid = make_kuid(current_user_ns(), user); + gid = make_kgid(current_user_ns(), group); + ++retry_deleg: + newattrs.ia_valid = ATTR_CTIME; + if (user != (uid_t) -1) { + if (!uid_valid(uid)) +@@ -555,7 +556,6 @@ static int chown_common(struct path *path, uid_t user, gid_t group) + if (!S_ISDIR(inode->i_mode)) + newattrs.ia_valid |= + ATTR_KILL_SUID | ATTR_KILL_SGID | ATTR_KILL_PRIV; +-retry_deleg: + mutex_lock(&inode->i_mutex); + error = security_path_chown(path, uid, gid); + if (!error) +diff --git a/include/acpi/actypes.h b/include/acpi/actypes.h +index 68a3ada689c9..8fc12f80b616 100644 +--- a/include/acpi/actypes.h ++++ b/include/acpi/actypes.h +@@ -198,9 +198,29 @@ typedef int INT32; + typedef s32 acpi_native_int; + + typedef u32 acpi_size; ++ ++#ifdef ACPI_32BIT_PHYSICAL_ADDRESS ++ ++/* ++ * OSPMs can define this to shrink the size of the structures for 32-bit ++ * none PAE environment. ASL compiler may always define this to generate ++ * 32-bit OSPM compliant tables. ++ */ + typedef u32 acpi_io_address; + typedef u32 acpi_physical_address; + ++#else /* ACPI_32BIT_PHYSICAL_ADDRESS */ ++ ++/* ++ * It is reported that, after some calculations, the physical addresses can ++ * wrap over the 32-bit boundary on 32-bit PAE environment. ++ * https://bugzilla.kernel.org/show_bug.cgi?id=87971 ++ */ ++typedef u64 acpi_io_address; ++typedef u64 acpi_physical_address; ++ ++#endif /* ACPI_32BIT_PHYSICAL_ADDRESS */ ++ + #define ACPI_MAX_PTR ACPI_UINT32_MAX + #define ACPI_SIZE_MAX ACPI_UINT32_MAX + +diff --git a/include/acpi/platform/acenv.h b/include/acpi/platform/acenv.h +index b402eb67af83..579912c7156c 100644 +--- a/include/acpi/platform/acenv.h ++++ b/include/acpi/platform/acenv.h +@@ -76,6 +76,7 @@ + #define ACPI_LARGE_NAMESPACE_NODE + #define ACPI_DATA_TABLE_DISASSEMBLY + #define ACPI_SINGLE_THREADED ++#define ACPI_32BIT_PHYSICAL_ADDRESS + #endif + + /* acpi_exec configuration. Multithreaded with full AML debugger */ +diff --git a/include/asm-generic/sections.h b/include/asm-generic/sections.h +index f1a24b5c3b90..b58fd667f87b 100644 +--- a/include/asm-generic/sections.h ++++ b/include/asm-generic/sections.h +@@ -3,6 +3,8 @@ + + /* References to section boundaries */ + ++#include <linux/compiler.h> ++ + /* + * Usage guidelines: + * _text, _data: architecture specific, don't use them in arch-independent code +@@ -37,6 +39,8 @@ extern char __start_rodata[], __end_rodata[]; + /* Start and end of .ctors section - used for constructor calls. */ + extern char __ctors_start[], __ctors_end[]; + ++extern __visible const void __nosave_begin, __nosave_end; ++ + /* function descriptor handling (if any). Override + * in asm/sections.h */ + #ifndef dereference_function_descriptor +diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h +index ad8f85908a56..ab3133797ff7 100644 +--- a/include/linux/skbuff.h ++++ b/include/linux/skbuff.h +@@ -661,6 +661,7 @@ bool skb_try_coalesce(struct sk_buff *to, struct sk_buff *from, + + struct sk_buff *__alloc_skb(unsigned int size, gfp_t priority, int flags, + int node); ++struct sk_buff *__build_skb(void *data, unsigned int frag_size); + struct sk_buff *build_skb(void *data, unsigned int frag_size); + static inline struct sk_buff *alloc_skb(unsigned int size, + gfp_t priority) +diff --git a/include/linux/usb.h b/include/linux/usb.h +index 7f6eb859873e..49466beab90d 100644 +--- a/include/linux/usb.h ++++ b/include/linux/usb.h +@@ -206,6 +206,32 @@ void usb_put_intf(struct usb_interface *intf); + #define USB_MAXINTERFACES 32 + #define USB_MAXIADS (USB_MAXINTERFACES/2) + ++/* ++ * USB Resume Timer: Every Host controller driver should drive the resume ++ * signalling on the bus for the amount of time defined by this macro. ++ * ++ * That way we will have a 'stable' behavior among all HCDs supported by Linux. ++ * ++ * Note that the USB Specification states we should drive resume for *at least* ++ * 20 ms, but it doesn't give an upper bound. This creates two possible ++ * situations which we want to avoid: ++ * ++ * (a) sometimes an msleep(20) might expire slightly before 20 ms, which causes ++ * us to fail USB Electrical Tests, thus failing Certification ++ * ++ * (b) Some (many) devices actually need more than 20 ms of resume signalling, ++ * and while we can argue that's against the USB Specification, we don't have ++ * control over which devices a certification laboratory will be using for ++ * certification. If CertLab uses a device which was tested against Windows and ++ * that happens to have relaxed resume signalling rules, we might fall into ++ * situations where we fail interoperability and electrical tests. ++ * ++ * In order to avoid both conditions, we're using a 40 ms resume timeout, which ++ * should cope with both LPJ calibration errors and devices not following every ++ * detail of the USB Specification. ++ */ ++#define USB_RESUME_TIMEOUT 40 /* ms */ ++ + /** + * struct usb_interface_cache - long-term representation of a device interface + * @num_altsetting: number of altsettings defined. +diff --git a/include/target/target_core_base.h b/include/target/target_core_base.h +index 349325404add..e4b9e011d2a1 100644 +--- a/include/target/target_core_base.h ++++ b/include/target/target_core_base.h +@@ -513,7 +513,7 @@ struct se_cmd { + sense_reason_t (*execute_cmd)(struct se_cmd *); + sense_reason_t (*execute_rw)(struct se_cmd *, struct scatterlist *, + u32, enum dma_data_direction); +- sense_reason_t (*transport_complete_callback)(struct se_cmd *); ++ sense_reason_t (*transport_complete_callback)(struct se_cmd *, bool); + + unsigned char *t_task_cdb; + unsigned char __t_task_cdb[TCM_MAX_COMMAND_SIZE]; +diff --git a/kernel/ptrace.c b/kernel/ptrace.c +index 1f4bcb3cc21c..be9760f8284a 100644 +--- a/kernel/ptrace.c ++++ b/kernel/ptrace.c +@@ -720,6 +720,8 @@ static int ptrace_peek_siginfo(struct task_struct *child, + static int ptrace_resume(struct task_struct *child, long request, + unsigned long data) + { ++ bool need_siglock; ++ + if (!valid_signal(data)) + return -EIO; + +@@ -747,8 +749,26 @@ static int ptrace_resume(struct task_struct *child, long request, + user_disable_single_step(child); + } + ++ /* ++ * Change ->exit_code and ->state under siglock to avoid the race ++ * with wait_task_stopped() in between; a non-zero ->exit_code will ++ * wrongly look like another report from tracee. ++ * ++ * Note that we need siglock even if ->exit_code == data and/or this ++ * status was not reported yet, the new status must not be cleared by ++ * wait_task_stopped() after resume. ++ * ++ * If data == 0 we do not care if wait_task_stopped() reports the old ++ * status and clears the code too; this can't race with the tracee, it ++ * takes siglock after resume. ++ */ ++ need_siglock = data && !thread_group_empty(current); ++ if (need_siglock) ++ spin_lock_irq(&child->sighand->siglock); + child->exit_code = data; + wake_up_state(child, __TASK_TRACED); ++ if (need_siglock) ++ spin_unlock_irq(&child->sighand->siglock); + + return 0; + } +diff --git a/kernel/softirq.c b/kernel/softirq.c +index 490fcbb1dc5b..93be750348c8 100644 +--- a/kernel/softirq.c ++++ b/kernel/softirq.c +@@ -657,9 +657,13 @@ static void run_ksoftirqd(unsigned int cpu) + * in the task stack here. + */ + __do_softirq(); +- rcu_note_context_switch(cpu); + local_irq_enable(); + cond_resched(); ++ ++ preempt_disable(); ++ rcu_note_context_switch(cpu); ++ preempt_enable(); ++ + return; + } + local_irq_enable(); +diff --git a/kernel/trace/ring_buffer.c b/kernel/trace/ring_buffer.c +index 774a0807fe81..da41de9dc319 100644 +--- a/kernel/trace/ring_buffer.c ++++ b/kernel/trace/ring_buffer.c +@@ -2651,7 +2651,7 @@ static DEFINE_PER_CPU(unsigned int, current_context); + + static __always_inline int trace_recursive_lock(void) + { +- unsigned int val = this_cpu_read(current_context); ++ unsigned int val = __this_cpu_read(current_context); + int bit; + + if (in_interrupt()) { +@@ -2668,18 +2668,17 @@ static __always_inline int trace_recursive_lock(void) + return 1; + + val |= (1 << bit); +- this_cpu_write(current_context, val); ++ __this_cpu_write(current_context, val); + + return 0; + } + + static __always_inline void trace_recursive_unlock(void) + { +- unsigned int val = this_cpu_read(current_context); ++ unsigned int val = __this_cpu_read(current_context); + +- val--; +- val &= this_cpu_read(current_context); +- this_cpu_write(current_context, val); ++ val &= val & (val - 1); ++ __this_cpu_write(current_context, val); + } + + #else +diff --git a/lib/string.c b/lib/string.c +index 43d0781daf47..cb9ea2181557 100644 +--- a/lib/string.c ++++ b/lib/string.c +@@ -598,7 +598,7 @@ EXPORT_SYMBOL(memset); + void memzero_explicit(void *s, size_t count) + { + memset(s, 0, count); +- OPTIMIZER_HIDE_VAR(s); ++ barrier(); + } + EXPORT_SYMBOL(memzero_explicit); + +diff --git a/net/core/skbuff.c b/net/core/skbuff.c +index e2b1bba69882..69ec61abfb37 100644 +--- a/net/core/skbuff.c ++++ b/net/core/skbuff.c +@@ -278,13 +278,14 @@ nodata: + EXPORT_SYMBOL(__alloc_skb); + + /** +- * build_skb - build a network buffer ++ * __build_skb - build a network buffer + * @data: data buffer provided by caller +- * @frag_size: size of fragment, or 0 if head was kmalloced ++ * @frag_size: size of data, or 0 if head was kmalloced + * + * Allocate a new &sk_buff. Caller provides space holding head and + * skb_shared_info. @data must have been allocated by kmalloc() only if +- * @frag_size is 0, otherwise data should come from the page allocator. ++ * @frag_size is 0, otherwise data should come from the page allocator ++ * or vmalloc() + * The return is the new skb buffer. + * On a failure the return is %NULL, and @data is not freed. + * Notes : +@@ -295,7 +296,7 @@ EXPORT_SYMBOL(__alloc_skb); + * before giving packet to stack. + * RX rings only contains data buffers, not full skbs. + */ +-struct sk_buff *build_skb(void *data, unsigned int frag_size) ++struct sk_buff *__build_skb(void *data, unsigned int frag_size) + { + struct skb_shared_info *shinfo; + struct sk_buff *skb; +@@ -309,7 +310,6 @@ struct sk_buff *build_skb(void *data, unsigned int frag_size) + + memset(skb, 0, offsetof(struct sk_buff, tail)); + skb->truesize = SKB_TRUESIZE(size); +- skb->head_frag = frag_size != 0; + atomic_set(&skb->users, 1); + skb->head = data; + skb->data = data; +@@ -326,6 +326,23 @@ struct sk_buff *build_skb(void *data, unsigned int frag_size) + + return skb; + } ++ ++/* build_skb() is wrapper over __build_skb(), that specifically ++ * takes care of skb->head and skb->pfmemalloc ++ * This means that if @frag_size is not zero, then @data must be backed ++ * by a page fragment, not kmalloc() or vmalloc() ++ */ ++struct sk_buff *build_skb(void *data, unsigned int frag_size) ++{ ++ struct sk_buff *skb = __build_skb(data, frag_size); ++ ++ if (skb && frag_size) { ++ skb->head_frag = 1; ++ if (virt_to_head_page(data)->pfmemalloc) ++ skb->pfmemalloc = 1; ++ } ++ return skb; ++} + EXPORT_SYMBOL(build_skb); + + struct netdev_alloc_cache { +@@ -352,7 +369,8 @@ refill: + gfp_t gfp = gfp_mask; + + if (order) +- gfp |= __GFP_COMP | __GFP_NOWARN; ++ gfp |= __GFP_COMP | __GFP_NOWARN | ++ __GFP_NOMEMALLOC; + nc->frag.page = alloc_pages(gfp, order); + if (likely(nc->frag.page)) + break; +diff --git a/net/ipv4/ip_forward.c b/net/ipv4/ip_forward.c +index ecb34b5ea42f..57075c4508f7 100644 +--- a/net/ipv4/ip_forward.c ++++ b/net/ipv4/ip_forward.c +@@ -127,6 +127,9 @@ int ip_forward(struct sk_buff *skb) + struct rtable *rt; /* Route we use */ + struct ip_options *opt = &(IPCB(skb)->opt); + ++ if (unlikely(skb->sk)) ++ goto drop; ++ + if (skb_warn_if_lro(skb)) + goto drop; + +diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c +index 8c70c73da347..a68cd7100349 100644 +--- a/net/ipv4/tcp_output.c ++++ b/net/ipv4/tcp_output.c +@@ -2595,39 +2595,65 @@ begin_fwd: + } + } + +-/* Send a fin. The caller locks the socket for us. This cannot be +- * allowed to fail queueing a FIN frame under any circumstances. ++/* We allow to exceed memory limits for FIN packets to expedite ++ * connection tear down and (memory) recovery. ++ * Otherwise tcp_send_fin() could be tempted to either delay FIN ++ * or even be forced to close flow without any FIN. ++ */ ++static void sk_forced_wmem_schedule(struct sock *sk, int size) ++{ ++ int amt, status; ++ ++ if (size <= sk->sk_forward_alloc) ++ return; ++ amt = sk_mem_pages(size); ++ sk->sk_forward_alloc += amt * SK_MEM_QUANTUM; ++ sk_memory_allocated_add(sk, amt, &status); ++} ++ ++/* Send a FIN. The caller locks the socket for us. ++ * We should try to send a FIN packet really hard, but eventually give up. + */ + void tcp_send_fin(struct sock *sk) + { ++ struct sk_buff *skb, *tskb = tcp_write_queue_tail(sk); + struct tcp_sock *tp = tcp_sk(sk); +- struct sk_buff *skb = tcp_write_queue_tail(sk); +- int mss_now; + +- /* Optimization, tack on the FIN if we have a queue of +- * unsent frames. But be careful about outgoing SACKS +- * and IP options. ++ /* Optimization, tack on the FIN if we have one skb in write queue and ++ * this skb was not yet sent, or we are under memory pressure. ++ * Note: in the latter case, FIN packet will be sent after a timeout, ++ * as TCP stack thinks it has already been transmitted. + */ +- mss_now = tcp_current_mss(sk); +- +- if (tcp_send_head(sk) != NULL) { +- TCP_SKB_CB(skb)->tcp_flags |= TCPHDR_FIN; +- TCP_SKB_CB(skb)->end_seq++; ++ if (tskb && (tcp_send_head(sk) || sk_under_memory_pressure(sk))) { ++coalesce: ++ TCP_SKB_CB(tskb)->tcp_flags |= TCPHDR_FIN; ++ TCP_SKB_CB(tskb)->end_seq++; + tp->write_seq++; ++ if (!tcp_send_head(sk)) { ++ /* This means tskb was already sent. ++ * Pretend we included the FIN on previous transmit. ++ * We need to set tp->snd_nxt to the value it would have ++ * if FIN had been sent. This is because retransmit path ++ * does not change tp->snd_nxt. ++ */ ++ tp->snd_nxt++; ++ return; ++ } + } else { +- /* Socket is locked, keep trying until memory is available. */ +- for (;;) { +- skb = sk_stream_alloc_skb(sk, 0, sk->sk_allocation); +- if (skb) +- break; +- yield(); ++ skb = alloc_skb_fclone(MAX_TCP_HEADER, sk->sk_allocation); ++ if (unlikely(!skb)) { ++ if (tskb) ++ goto coalesce; ++ return; + } ++ skb_reserve(skb, MAX_TCP_HEADER); ++ sk_forced_wmem_schedule(sk, skb->truesize); + /* FIN eats a sequence byte, write_seq advanced by tcp_queue_skb(). */ + tcp_init_nondata_skb(skb, tp->write_seq, + TCPHDR_ACK | TCPHDR_FIN); + tcp_queue_skb(sk, skb); + } +- __tcp_push_pending_frames(sk, mss_now, TCP_NAGLE_OFF); ++ __tcp_push_pending_frames(sk, tcp_current_mss(sk), TCP_NAGLE_OFF); + } + + /* We get here when a process closes a file descriptor (either due to +diff --git a/net/netlink/af_netlink.c b/net/netlink/af_netlink.c +index 1d52506bda14..a0b0ea949192 100644 +--- a/net/netlink/af_netlink.c ++++ b/net/netlink/af_netlink.c +@@ -1624,13 +1624,11 @@ static struct sk_buff *netlink_alloc_large_skb(unsigned int size, + if (data == NULL) + return NULL; + +- skb = build_skb(data, size); ++ skb = __build_skb(data, size); + if (skb == NULL) + vfree(data); +- else { +- skb->head_frag = 0; ++ else + skb->destructor = netlink_skb_destructor; +- } + + return skb; + } +diff --git a/sound/pci/emu10k1/emuproc.c b/sound/pci/emu10k1/emuproc.c +index 2ca9f2e93139..53745f4c2bf5 100644 +--- a/sound/pci/emu10k1/emuproc.c ++++ b/sound/pci/emu10k1/emuproc.c +@@ -241,31 +241,22 @@ static void snd_emu10k1_proc_spdif_read(struct snd_info_entry *entry, + struct snd_emu10k1 *emu = entry->private_data; + u32 value; + u32 value2; +- unsigned long flags; + u32 rate; + + if (emu->card_capabilities->emu_model) { +- spin_lock_irqsave(&emu->emu_lock, flags); + snd_emu1010_fpga_read(emu, 0x38, &value); +- spin_unlock_irqrestore(&emu->emu_lock, flags); + if ((value & 0x1) == 0) { +- spin_lock_irqsave(&emu->emu_lock, flags); + snd_emu1010_fpga_read(emu, 0x2a, &value); + snd_emu1010_fpga_read(emu, 0x2b, &value2); +- spin_unlock_irqrestore(&emu->emu_lock, flags); + rate = 0x1770000 / (((value << 5) | value2)+1); + snd_iprintf(buffer, "ADAT Locked : %u\n", rate); + } else { + snd_iprintf(buffer, "ADAT Unlocked\n"); + } +- spin_lock_irqsave(&emu->emu_lock, flags); + snd_emu1010_fpga_read(emu, 0x20, &value); +- spin_unlock_irqrestore(&emu->emu_lock, flags); + if ((value & 0x4) == 0) { +- spin_lock_irqsave(&emu->emu_lock, flags); + snd_emu1010_fpga_read(emu, 0x28, &value); + snd_emu1010_fpga_read(emu, 0x29, &value2); +- spin_unlock_irqrestore(&emu->emu_lock, flags); + rate = 0x1770000 / (((value << 5) | value2)+1); + snd_iprintf(buffer, "SPDIF Locked : %d\n", rate); + } else { +@@ -410,14 +401,11 @@ static void snd_emu_proc_emu1010_reg_read(struct snd_info_entry *entry, + { + struct snd_emu10k1 *emu = entry->private_data; + u32 value; +- unsigned long flags; + int i; + snd_iprintf(buffer, "EMU1010 Registers:\n\n"); + + for(i = 0; i < 0x40; i+=1) { +- spin_lock_irqsave(&emu->emu_lock, flags); + snd_emu1010_fpga_read(emu, i, &value); +- spin_unlock_irqrestore(&emu->emu_lock, flags); + snd_iprintf(buffer, "%02X: %08X, %02X\n", i, value, (value >> 8) & 0x7f); + } + } +diff --git a/sound/soc/davinci/davinci-evm.c b/sound/soc/davinci/davinci-evm.c +index 5e3bc3c6801a..f40a7a4b6591 100644 +--- a/sound/soc/davinci/davinci-evm.c ++++ b/sound/soc/davinci/davinci-evm.c +@@ -384,18 +384,8 @@ static int davinci_evm_probe(struct platform_device *pdev) + return ret; + } + +-static int davinci_evm_remove(struct platform_device *pdev) +-{ +- struct snd_soc_card *card = platform_get_drvdata(pdev); +- +- snd_soc_unregister_card(card); +- +- return 0; +-} +- + static struct platform_driver davinci_evm_driver = { + .probe = davinci_evm_probe, +- .remove = davinci_evm_remove, + .driver = { + .name = "davinci_evm", + .owner = THIS_MODULE, +diff --git a/tools/lib/traceevent/kbuffer-parse.c b/tools/lib/traceevent/kbuffer-parse.c +index dcc665228c71..deb3569ab004 100644 +--- a/tools/lib/traceevent/kbuffer-parse.c ++++ b/tools/lib/traceevent/kbuffer-parse.c +@@ -372,7 +372,6 @@ translate_data(struct kbuffer *kbuf, void *data, void **rptr, + switch (type_len) { + case KBUFFER_TYPE_PADDING: + *length = read_4(kbuf, data); +- data += *length; + break; + + case KBUFFER_TYPE_TIME_EXTEND: +diff --git a/tools/power/x86/turbostat/Makefile b/tools/power/x86/turbostat/Makefile +index d1b3a361e526..4039854560d0 100644 +--- a/tools/power/x86/turbostat/Makefile ++++ b/tools/power/x86/turbostat/Makefile +@@ -1,8 +1,12 @@ + CC = $(CROSS_COMPILE)gcc +-BUILD_OUTPUT := $(PWD) ++BUILD_OUTPUT := $(CURDIR) + PREFIX := /usr + DESTDIR := + ++ifeq ("$(origin O)", "command line") ++ BUILD_OUTPUT := $(O) ++endif ++ + turbostat : turbostat.c + CFLAGS += -Wall + CFLAGS += -DMSRHEADER='"../../../../arch/x86/include/uapi/asm/msr-index.h"' +diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c +index 66112533b1e9..eed250e9c218 100644 +--- a/virt/kvm/kvm_main.c ++++ b/virt/kvm/kvm_main.c +@@ -1549,8 +1549,8 @@ int kvm_gfn_to_hva_cache_init(struct kvm *kvm, struct gfn_to_hva_cache *ghc, + ghc->generation = slots->generation; + ghc->len = len; + ghc->memslot = gfn_to_memslot(kvm, start_gfn); +- ghc->hva = gfn_to_hva_many(ghc->memslot, start_gfn, &nr_pages_avail); +- if (!kvm_is_error_hva(ghc->hva) && nr_pages_avail >= nr_pages_needed) { ++ ghc->hva = gfn_to_hva_many(ghc->memslot, start_gfn, NULL); ++ if (!kvm_is_error_hva(ghc->hva) && nr_pages_needed <= 1) { + ghc->hva += offset; + } else { + /*
