138 files changed, 2791 insertions, 1174 deletions
diff --git a/Documentation/vfio.txt b/Documentation/vfio.txt
index 0cb6685c8029..8eda3635a17d 100644
--- a/Documentation/vfio.txt
+++ b/Documentation/vfio.txt
@@ -133,7 +133,7 @@ character devices for this group:
 $ lspci -n -s 0000:06:0d.0
 06:0d.0 0401: 1102:0002 (rev 08)
 # echo 0000:06:0d.0 > /sys/bus/pci/devices/0000:06:0d.0/driver/unbind
-# echo 1102 0002 > /sys/bus/pci/drivers/vfio/new_id
+# echo 1102 0002 > /sys/bus/pci/drivers/vfio-pci/new_id
 Now we need to look at what other devices are in the group to free
 it for use by VFIO:
diff --git a/MAINTAINERS b/MAINTAINERS
index b17587d9412f..9a6c4da3b2ff 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -3552,11 +3552,12 @@ K:	\b(ABS|SYN)_MT_
 INTEL C600 SERIES SAS CONTROLLER DRIVER
 M:      Intel SCU Linux support <intel-linux-scu@intel.com>
+M:      Lukasz Dorau <lukasz.dorau@intel.com>
+M:      Maciej Patelczyk <maciej.patelczyk@intel.com>
 M:      Dave Jiang <dave.jiang@intel.com>
-M:      Ed Nadolski <edmund.nadolski@intel.com>
 L:      linux-scsi@vger.kernel.org
-T:      git git://git.kernel.org/pub/scm/linux/kernel/git/djbw/isci.git
+T:      git git://git.code.sf.net/p/intel-sas/isci
-S:      Maintained
+S:      Supported
 F:      drivers/scsi/isci/
 F:      firmware/isci/
@@ -5544,6 +5545,8 @@ F:	Documentation/devicetree/bindings/pwm/
 F:      include/linux/pwm.h
 F:      include/linux/of_pwm.h
 F:      drivers/pwm/
+F:      drivers/video/backlight/pwm_bl.c
+F:      include/linux/pwm_backlight.h
 PXA2xx/PXA3xx SUPPORT
 M:      Eric Miao <eric.y.miao@gmail.com>
diff --git a/Makefile b/Makefile
index a3c11d589681..bb9fff26f078 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
 VERSION = 3
 PATCHLEVEL = 6
 SUBLEVEL = 0
-EXTRAVERSION = -rc7
+EXTRAVERSION =
 NAME = Terrified Chipmunk
 # *DOCUMENTATION*
diff --git a/arch/arm/mach-mxs/mach-mxs.c b/arch/arm/mach-mxs/mach-mxs.c
index 8dabfe81d07c..ff886e01a0b0 100644
--- a/arch/arm/mach-mxs/mach-mxs.c
+++ b/arch/arm/mach-mxs/mach-mxs.c
@@ -261,7 +261,7 @@ static void __init apx4devkit_init(void)
        enable_clk_enet_out();
        if (IS_BUILTIN(CONFIG_PHYLIB))
-                phy_register_fixup_for_uid(PHY_ID_KS8051, MICREL_PHY_ID_MASK,
+                phy_register_fixup_for_uid(PHY_ID_KSZ8051, MICREL_PHY_ID_MASK,
                                           apx4devkit_phy_fixup);
        mxsfb_pdata.mode_list = apx4devkit_video_modes;
diff --git a/arch/arm/mach-orion5x/common.c b/arch/arm/mach-orion5x/common.c
index 410291c67666..a6cd14ab1e4e 100644
--- a/arch/arm/mach-orion5x/common.c
+++ b/arch/arm/mach-orion5x/common.c
@@ -204,6 +204,13 @@ void __init orion5x_wdt_init(void)
 void __init orion5x_init_early(void)
 {
        orion_time_set_base(TIMER_VIRT_BASE);
+        /*
+         * Some Orion5x devices allocate their coherent buffers from atomic
+         * context. Increase size of atomic coherent pool to make sure such
+         * the allocations won't fail.
+         */
+        init_dma_coherent_pool_size(SZ_1M);
 }
 int orion5x_tclk;
diff --git a/arch/arm/mm/dma-mapping.c b/arch/arm/mm/dma-mapping.c
index e59c4ab71bcb..13f555d62491 100644
--- a/arch/arm/mm/dma-mapping.c
+++ b/arch/arm/mm/dma-mapping.c
@@ -346,6 +346,8 @@ static int __init atomic_pool_init(void)
                       (unsigned)pool->size / 1024);
                return 0;
        }
+        kfree(pages);
 no_pages:
        kfree(bitmap);
 no_bitmap:
diff --git a/arch/c6x/include/asm/Kbuild b/arch/c6x/include/asm/Kbuild
index 3af601e31e66..f08e89183cda 100644
--- a/arch/c6x/include/asm/Kbuild
+++ b/arch/c6x/include/asm/Kbuild
@@ -2,6 +2,7 @@ include include/asm-generic/Kbuild.asm
 generic-y += atomic.h
 generic-y += auxvec.h
+generic-y += barrier.h
 generic-y += bitsperlong.h
 generic-y += bugs.h
 generic-y += cputime.h
diff --git a/arch/c6x/include/asm/barrier.h b/arch/c6x/include/asm/barrier.h
deleted file mode 100644
index 538240e85909..000000000000
--- a/arch/c6x/include/asm/barrier.h
+++ /dev/null
@@ -1,27 +0,0 @@
-/*
- *  Port on Texas Instruments TMS320C6x architecture
- *
- *  Copyright (C) 2004, 2009, 2010, 2011 Texas Instruments Incorporated
- *  Author: Aurelien Jacquiot (aurelien.jacquiot@jaluna.com)
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License version 2 as
- *  published by the Free Software Foundation.
- */
-#ifndef _ASM_C6X_BARRIER_H
-#define _ASM_C6X_BARRIER_H
-#define nop()                    asm("NOP\n");
-#define mb()                     barrier()
-#define rmb()                    barrier()
-#define wmb()                    barrier()
-#define set_mb(var, value)       do { var = value;  mb(); } while (0)
-#define set_wmb(var, value)      do { var = value; wmb(); } while (0)
-#define smp_mb()                 barrier()
-#define smp_rmb()                barrier()
-#define smp_wmb()                barrier()
-#define smp_read_barrier_depends()      do { } while (0)
-#endif /* _ASM_C6X_BARRIER_H */
diff --git a/arch/tile/include/gxio/iorpc_trio.h b/arch/tile/include/gxio/iorpc_trio.h
index 15fb77992083..58105c31228b 100644
--- a/arch/tile/include/gxio/iorpc_trio.h
+++ b/arch/tile/include/gxio/iorpc_trio.h
@@ -25,21 +25,23 @@
 #include <linux/module.h>
 #include <asm/pgtable.h>
-#define GXIO_TRIO_OP_ALLOC_ASIDS       IORPC_OPCODE(IORPC_FORMAT_NONE, 0x1400)
+#define GXIO_TRIO_OP_DEALLOC_ASID      IORPC_OPCODE(IORPC_FORMAT_NONE, 0x1400)
+#define GXIO_TRIO_OP_ALLOC_ASIDS       IORPC_OPCODE(IORPC_FORMAT_NONE, 0x1401)
-#define GXIO_TRIO_OP_ALLOC_MEMORY_MAPS IORPC_OPCODE(IORPC_FORMAT_NONE, 0x1402)
+#define GXIO_TRIO_OP_ALLOC_MEMORY_MAPS IORPC_OPCODE(IORPC_FORMAT_NONE, 0x1404)
-#define GXIO_TRIO_OP_ALLOC_PIO_REGIONS IORPC_OPCODE(IORPC_FORMAT_NONE, 0x140e)
+#define GXIO_TRIO_OP_ALLOC_PIO_REGIONS IORPC_OPCODE(IORPC_FORMAT_NONE, 0x1412)
-#define GXIO_TRIO_OP_INIT_PIO_REGION_AUX IORPC_OPCODE(IORPC_FORMAT_NONE, 0x140f)
-#define GXIO_TRIO_OP_INIT_MEMORY_MAP_MMU_AUX IORPC_OPCODE(IORPC_FORMAT_NONE_NOUSER, 0x1417)
+#define GXIO_TRIO_OP_INIT_PIO_REGION_AUX IORPC_OPCODE(IORPC_FORMAT_NONE, 0x1414)
-#define GXIO_TRIO_OP_GET_PORT_PROPERTY IORPC_OPCODE(IORPC_FORMAT_NONE_NOUSER, 0x1418)
-#define GXIO_TRIO_OP_CONFIG_LEGACY_INTR IORPC_OPCODE(IORPC_FORMAT_KERNEL_INTERRUPT, 0x1419)
-#define GXIO_TRIO_OP_CONFIG_MSI_INTR   IORPC_OPCODE(IORPC_FORMAT_KERNEL_INTERRUPT, 0x141a)
-#define GXIO_TRIO_OP_SET_MPS_MRS       IORPC_OPCODE(IORPC_FORMAT_NONE_NOUSER, 0x141c)
+#define GXIO_TRIO_OP_INIT_MEMORY_MAP_MMU_AUX IORPC_OPCODE(IORPC_FORMAT_NONE_NOUSER, 0x141e)
-#define GXIO_TRIO_OP_FORCE_RC_LINK_UP  IORPC_OPCODE(IORPC_FORMAT_NONE_NOUSER, 0x141d)
+#define GXIO_TRIO_OP_GET_PORT_PROPERTY IORPC_OPCODE(IORPC_FORMAT_NONE_NOUSER, 0x141f)
-#define GXIO_TRIO_OP_FORCE_EP_LINK_UP  IORPC_OPCODE(IORPC_FORMAT_NONE_NOUSER, 0x141e)
+#define GXIO_TRIO_OP_CONFIG_LEGACY_INTR IORPC_OPCODE(IORPC_FORMAT_KERNEL_INTERRUPT, 0x1420)
+#define GXIO_TRIO_OP_CONFIG_MSI_INTR   IORPC_OPCODE(IORPC_FORMAT_KERNEL_INTERRUPT, 0x1421)
+#define GXIO_TRIO_OP_SET_MPS_MRS       IORPC_OPCODE(IORPC_FORMAT_NONE_NOUSER, 0x1423)
+#define GXIO_TRIO_OP_FORCE_RC_LINK_UP  IORPC_OPCODE(IORPC_FORMAT_NONE_NOUSER, 0x1424)
+#define GXIO_TRIO_OP_FORCE_EP_LINK_UP  IORPC_OPCODE(IORPC_FORMAT_NONE_NOUSER, 0x1425)
 #define GXIO_TRIO_OP_GET_MMIO_BASE     IORPC_OPCODE(IORPC_FORMAT_NONE_NOUSER, 0x8000)
 #define GXIO_TRIO_OP_CHECK_MMIO_OFFSET IORPC_OPCODE(IORPC_FORMAT_NONE_NOUSER, 0x8001)
diff --git a/arch/um/include/asm/processor-generic.h b/arch/um/include/asm/processor-generic.h
index 69f1c57a8d0d..33a6a2423bd2 100644
--- a/arch/um/include/asm/processor-generic.h
+++ b/arch/um/include/asm/processor-generic.h
@@ -20,14 +20,6 @@ struct mm_struct;
 struct thread_struct {
        struct task_struct *saved_task;
-        /*
-         * This flag is set to 1 before calling do_fork (and analyzed in
-         * copy_thread) to mark that we are begin called from userspace (fork /
-         * vfork / clone), and reset to 0 after. It is left to 0 when called
-         * from kernelspace (i.e. kernel_thread() or fork_idle(),
-         * as of 2.6.11).
-         */
-        int forking;
        struct pt_regs regs;
        int singlestep_syscall;
        void *fault_addr;
@@ -58,7 +50,6 @@ struct thread_struct {
 #define INIT_THREAD \
 { \
-        .forking                = 0, \
        .regs                   = EMPTY_REGS,   \
        .fault_addr             = NULL, \
        .prev_sched             = NULL, \
diff --git a/arch/um/include/shared/common-offsets.h b/arch/um/include/shared/common-offsets.h
index 40db8f71deae..2df313b6a586 100644
--- a/arch/um/include/shared/common-offsets.h
+++ b/arch/um/include/shared/common-offsets.h
@@ -7,16 +7,6 @@ DEFINE(UM_KERN_PAGE_MASK, PAGE_MASK);
 DEFINE(UM_KERN_PAGE_SHIFT, PAGE_SHIFT);
 DEFINE(UM_NSEC_PER_SEC, NSEC_PER_SEC);
-DEFINE_STR(UM_KERN_EMERG, KERN_EMERG);
-DEFINE_STR(UM_KERN_ALERT, KERN_ALERT);
-DEFINE_STR(UM_KERN_CRIT, KERN_CRIT);
-DEFINE_STR(UM_KERN_ERR, KERN_ERR);
-DEFINE_STR(UM_KERN_WARNING, KERN_WARNING);
-DEFINE_STR(UM_KERN_NOTICE, KERN_NOTICE);
-DEFINE_STR(UM_KERN_INFO, KERN_INFO);
-DEFINE_STR(UM_KERN_DEBUG, KERN_DEBUG);
-DEFINE_STR(UM_KERN_CONT, KERN_CONT);
 DEFINE(UM_ELF_CLASS, ELF_CLASS);
 DEFINE(UM_ELFCLASS32, ELFCLASS32);
 DEFINE(UM_ELFCLASS64, ELFCLASS64);
diff --git a/arch/um/include/shared/user.h b/arch/um/include/shared/user.h
index 4fa82c055aab..cef068563336 100644
--- a/arch/um/include/shared/user.h
+++ b/arch/um/include/shared/user.h
@@ -26,6 +26,17 @@
 extern void panic(const char *fmt, ...)
        __attribute__ ((format (printf, 1, 2)));
+/* Requires preincluding include/linux/kern_levels.h */
+#define UM_KERN_EMERG   KERN_EMERG
+#define UM_KERN_ALERT   KERN_ALERT
+#define UM_KERN_CRIT    KERN_CRIT
+#define UM_KERN_ERR     KERN_ERR
+#define UM_KERN_WARNING KERN_WARNING
+#define UM_KERN_NOTICE  KERN_NOTICE
+#define UM_KERN_INFO    KERN_INFO
+#define UM_KERN_DEBUG   KERN_DEBUG
+#define UM_KERN_CONT    KERN_CONT
 #ifdef UML_CONFIG_PRINTK
 extern int printk(const char *fmt, ...)
        __attribute__ ((format (printf, 1, 2)));
diff --git a/arch/um/kernel/exec.c b/arch/um/kernel/exec.c
index 6cade9366364..8c82786da823 100644
--- a/arch/um/kernel/exec.c
+++ b/arch/um/kernel/exec.c
@@ -39,34 +39,21 @@ void flush_thread(void)
 void start_thread(struct pt_regs *regs, unsigned long eip, unsigned long esp)
 {
+        get_safe_registers(regs->regs.gp, regs->regs.fp);
        PT_REGS_IP(regs) = eip;
        PT_REGS_SP(regs) = esp;
-}
+        current->ptrace &= ~PT_DTRACE;
-EXPORT_SYMBOL(start_thread);
-static long execve1(const char *file,
-                    const char __user *const __user *argv,
-                    const char __user *const __user *env)
-{
-        long error;
-        error = do_execve(file, argv, env, &current->thread.regs);
-        if (error == 0) {
-                task_lock(current);
-                current->ptrace &= ~PT_DTRACE;
 #ifdef SUBARCH_EXECVE1
-                SUBARCH_EXECVE1(&current->thread.regs.regs);
+        SUBARCH_EXECVE1(regs->regs);
 #endif
-                task_unlock(current);
-        }
-        return error;
 }
+EXPORT_SYMBOL(start_thread);
 long um_execve(const char *file, const char __user *const __user *argv, const char __user *const __user *env)
 {
        long err;
-        err = execve1(file, argv, env);
+        err = do_execve(file, argv, env, &current->thread.regs);
        if (!err)
                UML_LONGJMP(current->thread.exec_buf, 1);
        return err;
@@ -81,7 +68,7 @@ long sys_execve(const char __user *file, const char __user *const __user *argv,
        filename = getname(file);
        error = PTR_ERR(filename);
        if (IS_ERR(filename)) goto out;
-        error = execve1(filename, argv, env);
+        error = do_execve(filename, argv, env, &current->thread.regs);
        putname(filename);
 out:
        return error;
diff --git a/arch/um/kernel/process.c b/arch/um/kernel/process.c
index 57fc7028714a..c5f5afa50745 100644
--- a/arch/um/kernel/process.c
+++ b/arch/um/kernel/process.c
@@ -181,11 +181,12 @@ int copy_thread(unsigned long clone_flags, unsigned long sp,
                struct pt_regs *regs)
 {
        void (*handler)(void);
+        int kthread = current->flags & PF_KTHREAD;
        int ret = 0;
        p->thread = (struct thread_struct) INIT_THREAD;
-        if (current->thread.forking) {
+        if (!kthread) {
                memcpy(&p->thread.regs.regs, &regs->regs,
                       sizeof(p->thread.regs.regs));
                PT_REGS_SET_SYSCALL_RETURN(&p->thread.regs, 0);
@@ -195,8 +196,7 @@ int copy_thread(unsigned long clone_flags, unsigned long sp,
                handler = fork_handler;
                arch_copy_thread(&current->thread.arch, &p->thread.arch);
-        }
+        } else {
-        else {
                get_safe_registers(p->thread.regs.regs.gp, p->thread.regs.regs.fp);
                p->thread.request.u.thread = current->thread.request.u.thread;
                handler = new_thread_handler;
@@ -204,7 +204,7 @@ int copy_thread(unsigned long clone_flags, unsigned long sp,
        new_thread(task_stack_page(p), &p->thread.switch_buf, handler);
-        if (current->thread.forking) {
+        if (!kthread) {
                clear_flushed_tls(p);
                /*
diff --git a/arch/um/kernel/signal.c b/arch/um/kernel/signal.c
index 7362d58efc29..cc9c2350e417 100644
--- a/arch/um/kernel/signal.c
+++ b/arch/um/kernel/signal.c
@@ -22,9 +22,13 @@ static void handle_signal(struct pt_regs *regs, unsigned long signr,
                         struct k_sigaction *ka, siginfo_t *info)
 {
        sigset_t *oldset = sigmask_to_save();
+        int singlestep = 0;
        unsigned long sp;
        int err;
+        if ((current->ptrace & PT_DTRACE) && (current->ptrace & PT_PTRACED))
+                singlestep = 1;
        /* Did we come from a system call? */
        if (PT_REGS_SYSCALL_NR(regs) >= 0) {
                /* If so, check system call restarting.. */
@@ -61,7 +65,7 @@ static void handle_signal(struct pt_regs *regs, unsigned long signr,
        if (err)
                force_sigsegv(signr, current);
        else
-                signal_delivered(signr, info, ka, regs, 0);
+                signal_delivered(signr, info, ka, regs, singlestep);
 }
 static int kern_do_signal(struct pt_regs *regs)
diff --git a/arch/um/kernel/syscall.c b/arch/um/kernel/syscall.c
index f958cb876ee3..a4c6d8eee74c 100644
--- a/arch/um/kernel/syscall.c
+++ b/arch/um/kernel/syscall.c
@@ -17,25 +17,25 @@
 long sys_fork(void)
 {
-        long ret;
+        return do_fork(SIGCHLD, UPT_SP(&current->thread.regs.regs),
-        current->thread.forking = 1;
-        ret = do_fork(SIGCHLD, UPT_SP(&current->thread.regs.regs),
                      &current->thread.regs, 0, NULL, NULL);
-        current->thread.forking = 0;
-        return ret;
 }
 long sys_vfork(void)
 {
-        long ret;
+        return do_fork(CLONE_VFORK | CLONE_VM | SIGCHLD,
-        current->thread.forking = 1;
-        ret = do_fork(CLONE_VFORK | CLONE_VM | SIGCHLD,
                      UPT_SP(&current->thread.regs.regs),
                      &current->thread.regs, 0, NULL, NULL);
-        current->thread.forking = 0;
+}
-        return ret;
+long sys_clone(unsigned long clone_flags, unsigned long newsp,
+               void __user *parent_tid, void __user *child_tid)
+{
+        if (!newsp)
+                newsp = UPT_SP(&current->thread.regs.regs);
+        return do_fork(clone_flags, newsp, &current->thread.regs, 0, parent_tid,
+                      child_tid);
 }
 long old_mmap(unsigned long addr, unsigned long len,
diff --git a/arch/um/scripts/Makefile.rules b/arch/um/scripts/Makefile.rules
index d50270d26b42..15889df9b466 100644
--- a/arch/um/scripts/Makefile.rules
+++ b/arch/um/scripts/Makefile.rules
@@ -8,7 +8,7 @@ USER_OBJS += $(filter %_user.o,$(obj-y) $(obj-m)  $(USER_SINGLE_OBJS))
 USER_OBJS := $(foreach file,$(USER_OBJS),$(obj)/$(file))
 $(USER_OBJS:.o=.%): \
-        c_flags = -Wp,-MD,$(depfile) $(USER_CFLAGS) -include user.h $(CFLAGS_$(basetarget).o)
+        c_flags = -Wp,-MD,$(depfile) $(USER_CFLAGS) -include $(srctree)/include/linux/kern_levels.h -include user.h $(CFLAGS_$(basetarget).o)
 # These are like USER_OBJS but filter USER_CFLAGS through unprofile instead of
 # using it directly.
diff --git a/arch/x86/um/Kconfig b/arch/x86/um/Kconfig
index 9926e11a772d..aeaff8bef2f1 100644
--- a/arch/x86/um/Kconfig
+++ b/arch/x86/um/Kconfig
@@ -21,6 +21,7 @@ config 64BIT
 config X86_32
        def_bool !64BIT
        select HAVE_AOUT
+        select ARCH_WANT_IPC_PARSE_VERSION
 config X86_64
        def_bool 64BIT
diff --git a/arch/x86/um/shared/sysdep/kernel-offsets.h b/arch/x86/um/shared/sysdep/kernel-offsets.h
index 5868526b5eef..46a9df99f3c5 100644
--- a/arch/x86/um/shared/sysdep/kernel-offsets.h
+++ b/arch/x86/um/shared/sysdep/kernel-offsets.h
@@ -7,9 +7,6 @@
 #define DEFINE(sym, val) \
        asm volatile("\n->" #sym " %0 " #val : : "i" (val))
-#define STR(x) #x
-#define DEFINE_STR(sym, val) asm volatile("\n->" #sym " " STR(val) " " #val: : )
 #define BLANK() asm volatile("\n->" : : )
 #define OFFSET(sym, str, mem) \
diff --git a/arch/x86/um/shared/sysdep/syscalls.h b/arch/x86/um/shared/sysdep/syscalls.h
index bd9a89b67e41..ca255a805ed9 100644
--- a/arch/x86/um/shared/sysdep/syscalls.h
+++ b/arch/x86/um/shared/sysdep/syscalls.h
@@ -1,3 +1,5 @@
+extern long sys_clone(unsigned long clone_flags, unsigned long newsp,
+               void __user *parent_tid, void __user *child_tid);
 #ifdef __i386__
 #include "syscalls_32.h"
 #else
diff --git a/arch/x86/um/signal.c b/arch/x86/um/signal.c
index a508cea13503..ba7363ecf896 100644
--- a/arch/x86/um/signal.c
+++ b/arch/x86/um/signal.c
@@ -416,9 +416,6 @@ int setup_signal_stack_sc(unsigned long stack_top, int sig,
        PT_REGS_AX(regs) = (unsigned long) sig;
        PT_REGS_DX(regs) = (unsigned long) 0;
        PT_REGS_CX(regs) = (unsigned long) 0;
-        if ((current->ptrace & PT_DTRACE) && (current->ptrace & PT_PTRACED))
-                ptrace_notify(SIGTRAP);
        return 0;
 }
@@ -466,9 +463,6 @@ int setup_signal_stack_si(unsigned long stack_top, int sig,
        PT_REGS_AX(regs) = (unsigned long) sig;
        PT_REGS_DX(regs) = (unsigned long) &frame->info;
        PT_REGS_CX(regs) = (unsigned long) &frame->uc;
-        if ((current->ptrace & PT_DTRACE) && (current->ptrace & PT_PTRACED))
-                ptrace_notify(SIGTRAP);
        return 0;
 }
diff --git a/arch/x86/um/sys_call_table_32.c b/arch/x86/um/sys_call_table_32.c
index 68d1dc91b37b..b5408cecac6c 100644
--- a/arch/x86/um/sys_call_table_32.c
+++ b/arch/x86/um/sys_call_table_32.c
@@ -28,7 +28,7 @@
 #define ptregs_execve sys_execve
 #define ptregs_iopl sys_iopl
 #define ptregs_vm86old sys_vm86old
-#define ptregs_clone sys_clone
+#define ptregs_clone i386_clone
 #define ptregs_vm86 sys_vm86
 #define ptregs_sigaltstack sys_sigaltstack
 #define ptregs_vfork sys_vfork
diff --git a/arch/x86/um/syscalls_32.c b/arch/x86/um/syscalls_32.c
index b853e8600b9d..db444c7218fe 100644
--- a/arch/x86/um/syscalls_32.c
+++ b/arch/x86/um/syscalls_32.c
@@ -3,37 +3,24 @@
 * Licensed under the GPL
 */
-#include "linux/sched.h"
+#include <linux/syscalls.h>
-#include "linux/shm.h"
+#include <sysdep/syscalls.h>
-#include "linux/ipc.h"
-#include "linux/syscalls.h"
-#include "asm/mman.h"
-#include "asm/uaccess.h"
-#include "asm/unistd.h"
 /*
 * The prototype on i386 is:
 *
- *     int clone(int flags, void * child_stack, int * parent_tidptr, struct user_desc * newtls, int * child_tidptr)
+ *     int clone(int flags, void * child_stack, int * parent_tidptr, struct user_desc * newtls
 *
 * and the "newtls" arg. on i386 is read by copy_thread directly from the
 * register saved on the stack.
 */
-long sys_clone(unsigned long clone_flags, unsigned long newsp,
+long i386_clone(unsigned long clone_flags, unsigned long newsp,
-               int __user *parent_tid, void *newtls, int __user *child_tid)
+                int __user *parent_tid, void *newtls, int __user *child_tid)
 {
-        long ret;
+        return sys_clone(clone_flags, newsp, parent_tid, child_tid);
-        if (!newsp)
-                newsp = UPT_SP(&current->thread.regs.regs);
-        current->thread.forking = 1;
-        ret = do_fork(clone_flags, newsp, &current->thread.regs, 0, parent_tid,
-                      child_tid);
-        current->thread.forking = 0;
-        return ret;
 }
 long sys_sigaction(int sig, const struct old_sigaction __user *act,
                         struct old_sigaction __user *oact)
 {
diff --git a/arch/x86/um/syscalls_64.c b/arch/x86/um/syscalls_64.c
index f3d82bb6e15a..adb08eb5c22a 100644
--- a/arch/x86/um/syscalls_64.c
+++ b/arch/x86/um/syscalls_64.c
@@ -5,12 +5,9 @@
 * Licensed under the GPL
 */
-#include "linux/linkage.h"
+#include <linux/sched.h>
-#include "linux/personality.h"
+#include <asm/prctl.h> /* XXX This should get the constants from libc */
-#include "linux/utsname.h"
+#include <os.h>
-#include "asm/prctl.h" /* XXX This should get the constants from libc */
-#include "asm/uaccess.h"
-#include "os.h"
 long arch_prctl(struct task_struct *task, int code, unsigned long __user *addr)
 {
@@ -79,20 +76,6 @@ long sys_arch_prctl(int code, unsigned long addr)
        return arch_prctl(current, code, (unsigned long __user *) addr);
 }
-long sys_clone(unsigned long clone_flags, unsigned long newsp,
-               void __user *parent_tid, void __user *child_tid)
-{
-        long ret;
-        if (!newsp)
-                newsp = UPT_SP(&current->thread.regs.regs);
-        current->thread.forking = 1;
-        ret = do_fork(clone_flags, newsp, &current->thread.regs, 0, parent_tid,
-                      child_tid);
-        current->thread.forking = 0;
-        return ret;
-}
 void arch_switch_to(struct task_struct *to)
 {
        if ((to->thread.arch.fs == 0) || (to->mm == NULL))
diff --git a/arch/x86/xen/setup.c b/arch/x86/xen/setup.c
index d11ca11d14fc..e2d62d697b5d 100644
--- a/arch/x86/xen/setup.c
+++ b/arch/x86/xen/setup.c
@@ -17,6 +17,7 @@
 #include <asm/e820.h>
 #include <asm/setup.h>
 #include <asm/acpi.h>
+#include <asm/numa.h>
 #include <asm/xen/hypervisor.h>
 #include <asm/xen/hypercall.h>
@@ -544,4 +545,7 @@ void __init xen_arch_setup(void)
        disable_cpufreq();
        WARN_ON(set_pm_idle_to_default());
        fiddle_vdso();
+#ifdef CONFIG_NUMA
+        numa_off = 1;
+#endif
 }
diff --git a/drivers/acpi/acpica/Makefile b/drivers/acpi/acpica/Makefile
index 0a1b3435f920..7f1d40797e80 100644
--- a/drivers/acpi/acpica/Makefile
+++ b/drivers/acpi/acpica/Makefile
@@ -158,5 +158,6 @@ acpi-y +=		\
        utresrc.o       \
        utstate.o       \
        utxface.o       \
+        utxfinit.o      \
        utxferror.o     \
        utxfmutex.o
diff --git a/drivers/acpi/acpica/achware.h b/drivers/acpi/acpica/achware.h
index 5de4ec72766d..d902d31abc6c 100644
--- a/drivers/acpi/acpica/achware.h
+++ b/drivers/acpi/acpica/achware.h
@@ -110,8 +110,7 @@ acpi_status acpi_hw_write_port(acpi_io_address address, u32 value, u32 width);
 /*
 * hwgpe - GPE support
 */
-u32 acpi_hw_get_gpe_register_bit(struct acpi_gpe_event_info *gpe_event_info,
+u32 acpi_hw_get_gpe_register_bit(struct acpi_gpe_event_info *gpe_event_info);
-                             struct acpi_gpe_register_info *gpe_register_info);
 acpi_status
 acpi_hw_low_set_gpe(struct acpi_gpe_event_info *gpe_event_info, u32 action);
diff --git a/drivers/acpi/acpica/aclocal.h b/drivers/acpi/acpica/aclocal.h
index cc80fe10e8ea..c816ee675094 100644
--- a/drivers/acpi/acpica/aclocal.h
+++ b/drivers/acpi/acpica/aclocal.h
@@ -707,15 +707,18 @@ union acpi_parse_value {
        u8                              disasm_opcode;  /* Subtype used for disassembly */\
        char                            aml_op_name[16])        /* Op name (debug only) */
-#define ACPI_DASM_BUFFER                0x00
+/* Flags for disasm_flags field above */
-#define ACPI_DASM_RESOURCE              0x01
-#define ACPI_DASM_STRING                0x02
+#define ACPI_DASM_BUFFER                0x00    /* Buffer is a simple data buffer */
-#define ACPI_DASM_UNICODE               0x03
+#define ACPI_DASM_RESOURCE              0x01    /* Buffer is a Resource Descriptor */
-#define ACPI_DASM_EISAID                0x04
+#define ACPI_DASM_STRING                0x02    /* Buffer is a ASCII string */
-#define ACPI_DASM_MATCHOP               0x05
+#define ACPI_DASM_UNICODE               0x03    /* Buffer is a Unicode string */
-#define ACPI_DASM_LNOT_PREFIX           0x06
+#define ACPI_DASM_PLD_METHOD            0x04    /* Buffer is a _PLD method bit-packed buffer */
-#define ACPI_DASM_LNOT_SUFFIX           0x07
+#define ACPI_DASM_EISAID                0x05    /* Integer is an EISAID */
-#define ACPI_DASM_IGNORE                0x08
+#define ACPI_DASM_MATCHOP               0x06    /* Parent opcode is a Match() operator */
+#define ACPI_DASM_LNOT_PREFIX           0x07    /* Start of a Lnot_equal (etc.) pair of opcodes */
+#define ACPI_DASM_LNOT_SUFFIX           0x08    /* End  of a Lnot_equal (etc.) pair of opcodes */
+#define ACPI_DASM_IGNORE                0x09    /* Not used at this time */
 /*
 * Generic operation (for example:  If, While, Store)
@@ -932,6 +935,7 @@ struct acpi_bit_register_info {
 #define ACPI_OSI_WIN_VISTA_SP1          0x09
 #define ACPI_OSI_WIN_VISTA_SP2          0x0A
 #define ACPI_OSI_WIN_7                  0x0B
+#define ACPI_OSI_WIN_8                  0x0C
 #define ACPI_ALWAYS_ILLEGAL             0x00
@@ -1024,6 +1028,7 @@ struct acpi_port_info {
 ****************************************************************************/
 struct acpi_db_method_info {
+        acpi_handle method;
        acpi_handle main_thread_gate;
        acpi_handle thread_complete_gate;
        acpi_thread_id *threads;
diff --git a/drivers/acpi/acpica/acmacros.h b/drivers/acpi/acpica/acmacros.h
index 832b6198652e..a7f68c47f517 100644
--- a/drivers/acpi/acpica/acmacros.h
+++ b/drivers/acpi/acpica/acmacros.h
@@ -277,10 +277,33 @@
 /* Bitfields within ACPI registers */
-#define ACPI_REGISTER_PREPARE_BITS(val, pos, mask)      ((val << pos) & mask)
+#define ACPI_REGISTER_PREPARE_BITS(val, pos, mask) \
-#define ACPI_REGISTER_INSERT_VALUE(reg, pos, mask, val)  reg = (reg & (~(mask))) | ACPI_REGISTER_PREPARE_BITS(val, pos, mask)
+        ((val << pos) & mask)
-#define ACPI_INSERT_BITS(target, mask, source)          target = ((target & (~(mask))) | (source & mask))
+#define ACPI_REGISTER_INSERT_VALUE(reg, pos, mask, val) \
+        reg = (reg & (~(mask))) | ACPI_REGISTER_PREPARE_BITS(val, pos, mask)
+#define ACPI_INSERT_BITS(target, mask, source) \
+        target = ((target & (~(mask))) | (source & mask))
+/* Generic bitfield macros and masks */
+#define ACPI_GET_BITS(source_ptr, position, mask) \
+        ((*source_ptr >> position) & mask)
+#define ACPI_SET_BITS(target_ptr, position, mask, value) \
+        (*target_ptr |= ((value & mask) << position))
+#define ACPI_1BIT_MASK      0x00000001
+#define ACPI_2BIT_MASK      0x00000003
+#define ACPI_3BIT_MASK      0x00000007
+#define ACPI_4BIT_MASK      0x0000000F
+#define ACPI_5BIT_MASK      0x0000001F
+#define ACPI_6BIT_MASK      0x0000003F
+#define ACPI_7BIT_MASK      0x0000007F
+#define ACPI_8BIT_MASK      0x000000FF
+#define ACPI_16BIT_MASK     0x0000FFFF
+#define ACPI_24BIT_MASK     0x00FFFFFF
 /*
 * An object of type struct acpi_namespace_node can appear in some contexts
diff --git a/drivers/acpi/acpica/dswload.c b/drivers/acpi/acpica/dswload.c
index 552aa3a50c84..557510084c7a 100644
--- a/drivers/acpi/acpica/dswload.c
+++ b/drivers/acpi/acpica/dswload.c
@@ -230,6 +230,20 @@ acpi_ds_load1_begin_op(struct acpi_walk_state * walk_state,
                        walk_state->scope_info->common.value = ACPI_TYPE_ANY;
                        break;
+                case ACPI_TYPE_METHOD:
+                        /*
+                         * Allow scope change to root during execution of module-level
+                         * code. Root is typed METHOD during this time.
+                         */
+                        if ((node == acpi_gbl_root_node) &&
+                            (walk_state->
+                             parse_flags & ACPI_PARSE_MODULE_LEVEL)) {
+                                break;
+                        }
+                        /*lint -fallthrough */
                default:
                        /* All other types are an error */
diff --git a/drivers/acpi/acpica/dswload2.c b/drivers/acpi/acpica/dswload2.c
index ae7147724763..89c0114210c0 100644
--- a/drivers/acpi/acpica/dswload2.c
+++ b/drivers/acpi/acpica/dswload2.c
@@ -230,6 +230,20 @@ acpi_ds_load2_begin_op(struct acpi_walk_state *walk_state,
                        walk_state->scope_info->common.value = ACPI_TYPE_ANY;
                        break;
+                case ACPI_TYPE_METHOD:
+                        /*
+                         * Allow scope change to root during execution of module-level
+                         * code. Root is typed METHOD during this time.
+                         */
+                        if ((node == acpi_gbl_root_node) &&
+                            (walk_state->
+                             parse_flags & ACPI_PARSE_MODULE_LEVEL)) {
+                                break;
+                        }
+                        /*lint -fallthrough */
                default:
                        /* All other types are an error */
diff --git a/drivers/acpi/acpica/evgpe.c b/drivers/acpi/acpica/evgpe.c
index afbd5cb391f6..ef0193d74b5d 100644
--- a/drivers/acpi/acpica/evgpe.c
+++ b/drivers/acpi/acpica/evgpe.c
@@ -80,8 +80,7 @@ acpi_ev_update_gpe_enable_mask(struct acpi_gpe_event_info *gpe_event_info)
                return_ACPI_STATUS(AE_NOT_EXIST);
        }
-        register_bit = acpi_hw_get_gpe_register_bit(gpe_event_info,
+        register_bit = acpi_hw_get_gpe_register_bit(gpe_event_info);
-                                                gpe_register_info);
        /* Clear the run bit up front */
@@ -379,6 +378,18 @@ u32 acpi_ev_gpe_detect(struct acpi_gpe_xrupt_info * gpe_xrupt_list)
                         */
                        if (!(gpe_register_info->enable_for_run |
                              gpe_register_info->enable_for_wake)) {
+                                ACPI_DEBUG_PRINT((ACPI_DB_INTERRUPTS,
+                                                  "Ignore disabled registers for GPE%02X-GPE%02X: "
+                                                  "RunEnable=%02X, WakeEnable=%02X\n",
+                                                  gpe_register_info->
+                                                  base_gpe_number,
+                                                  gpe_register_info->
+                                                  base_gpe_number +
+                                                  (ACPI_GPE_REGISTER_WIDTH - 1),
+                                                  gpe_register_info->
+                                                  enable_for_run,
+                                                  gpe_register_info->
+                                                  enable_for_wake));
                                continue;
                        }
@@ -401,9 +412,14 @@ u32 acpi_ev_gpe_detect(struct acpi_gpe_xrupt_info * gpe_xrupt_list)
                        }
                        ACPI_DEBUG_PRINT((ACPI_DB_INTERRUPTS,
-                                          "Read GPE Register at GPE%02X: Status=%02X, Enable=%02X\n",
+                                          "Read registers for GPE%02X-GPE%02X: Status=%02X, Enable=%02X, "
+                                          "RunEnable=%02X, WakeEnable=%02X\n",
                                          gpe_register_info->base_gpe_number,
-                                          status_reg, enable_reg));
+                                          gpe_register_info->base_gpe_number +
+                                          (ACPI_GPE_REGISTER_WIDTH - 1),
+                                          status_reg, enable_reg,
+                                          gpe_register_info->enable_for_run,
+                                          gpe_register_info->enable_for_wake));
                        /* Check if there is anything active at all in this register */
diff --git a/drivers/acpi/acpica/evxfgpe.c b/drivers/acpi/acpica/evxfgpe.c
index 6affbdb4b88c..87c5f2332260 100644
--- a/drivers/acpi/acpica/evxfgpe.c
+++ b/drivers/acpi/acpica/evxfgpe.c
@@ -357,8 +357,7 @@ acpi_status acpi_set_gpe_wake_mask(acpi_handle gpe_device, u32 gpe_number, u8 ac
                goto unlock_and_exit;
        }
-        register_bit =
+        register_bit = acpi_hw_get_gpe_register_bit(gpe_event_info);
-            acpi_hw_get_gpe_register_bit(gpe_event_info, gpe_register_info);
        /* Perform the action */
diff --git a/drivers/acpi/acpica/hwgpe.c b/drivers/acpi/acpica/hwgpe.c
index 25bd28c4ae8d..db4076580e2b 100644
--- a/drivers/acpi/acpica/hwgpe.c
+++ b/drivers/acpi/acpica/hwgpe.c
@@ -60,7 +60,6 @@ acpi_hw_enable_wakeup_gpe_block(struct acpi_gpe_xrupt_info *gpe_xrupt_info,
 * FUNCTION:    acpi_hw_get_gpe_register_bit
 *
 * PARAMETERS:  gpe_event_info      - Info block for the GPE
- *              gpe_register_info   - Info block for the GPE register
 *
 * RETURN:      Register mask with a one in the GPE bit position
 *
@@ -69,11 +68,10 @@ acpi_hw_enable_wakeup_gpe_block(struct acpi_gpe_xrupt_info *gpe_xrupt_info,
 *
 ******************************************************************************/
-u32 acpi_hw_get_gpe_register_bit(struct acpi_gpe_event_info *gpe_event_info,
+u32 acpi_hw_get_gpe_register_bit(struct acpi_gpe_event_info *gpe_event_info)
-                             struct acpi_gpe_register_info *gpe_register_info)
 {
        return (u32)1 << (gpe_event_info->gpe_number -
-                                gpe_register_info->base_gpe_number);
+                 gpe_event_info->register_info->base_gpe_number);
 }
 /******************************************************************************
@@ -115,8 +113,7 @@ acpi_hw_low_set_gpe(struct acpi_gpe_event_info *gpe_event_info, u32 action)
        /* Set or clear just the bit that corresponds to this GPE */
-        register_bit = acpi_hw_get_gpe_register_bit(gpe_event_info,
+        register_bit = acpi_hw_get_gpe_register_bit(gpe_event_info);
-                                                gpe_register_info);
        switch (action) {
        case ACPI_GPE_CONDITIONAL_ENABLE:
@@ -178,8 +175,7 @@ acpi_status acpi_hw_clear_gpe(struct acpi_gpe_event_info * gpe_event_info)
         * Write a one to the appropriate bit in the status register to
         * clear this GPE.
         */
-        register_bit =
+        register_bit = acpi_hw_get_gpe_register_bit(gpe_event_info);
-            acpi_hw_get_gpe_register_bit(gpe_event_info, gpe_register_info);
        status = acpi_hw_write(register_bit,
                               &gpe_register_info->status_address);
@@ -222,8 +218,7 @@ acpi_hw_get_gpe_status(struct acpi_gpe_event_info * gpe_event_info,
        /* Get the register bitmask for this GPE */
-        register_bit = acpi_hw_get_gpe_register_bit(gpe_event_info,
+        register_bit = acpi_hw_get_gpe_register_bit(gpe_event_info);
-                                                gpe_register_info);
        /* GPE currently enabled? (enabled for runtime?) */
diff --git a/drivers/acpi/acpica/hwxfsleep.c b/drivers/acpi/acpica/hwxfsleep.c
index 1f165a750ae2..0ff1ecea5c3a 100644
--- a/drivers/acpi/acpica/hwxfsleep.c
+++ b/drivers/acpi/acpica/hwxfsleep.c
@@ -381,7 +381,6 @@ ACPI_EXPORT_SYMBOL(acpi_enter_sleep_state)
 * FUNCTION:    acpi_leave_sleep_state_prep
 *
 * PARAMETERS:  sleep_state         - Which sleep state we are exiting
- *              flags               - ACPI_EXECUTE_BFS to run optional method
 *
 * RETURN:      Status
 *
diff --git a/drivers/acpi/acpica/nsdump.c b/drivers/acpi/acpica/nsdump.c
index 7ee4e6aeb0a2..2526aaf945ee 100644
--- a/drivers/acpi/acpica/nsdump.c
+++ b/drivers/acpi/acpica/nsdump.c
@@ -264,7 +264,7 @@ acpi_ns_dump_one_object(acpi_handle obj_handle,
                switch (type) {
                case ACPI_TYPE_PROCESSOR:
-                        acpi_os_printf("ID %X Len %.4X Addr %p\n",
+                        acpi_os_printf("ID %02X Len %02X Addr %p\n",
                                       obj_desc->processor.proc_id,
                                       obj_desc->processor.length,
                                       ACPI_CAST_PTR(void,
diff --git a/drivers/acpi/acpica/tbinstal.c b/drivers/acpi/acpica/tbinstal.c
index 74f97d74db1c..70f9d787c82c 100644
--- a/drivers/acpi/acpica/tbinstal.c
+++ b/drivers/acpi/acpica/tbinstal.c
@@ -350,6 +350,7 @@ struct acpi_table_header *acpi_tb_table_override(struct acpi_table_header
 acpi_status acpi_tb_resize_root_table_list(void)
 {
        struct acpi_table_desc *tables;
+        u32 table_count;
        ACPI_FUNCTION_TRACE(tb_resize_root_table_list);
@@ -363,8 +364,13 @@ acpi_status acpi_tb_resize_root_table_list(void)
        /* Increase the Table Array size */
-        tables = ACPI_ALLOCATE_ZEROED(((acpi_size) acpi_gbl_root_table_list.
+        if (acpi_gbl_root_table_list.flags & ACPI_ROOT_ORIGIN_ALLOCATED) {
-                                       max_table_count +
+                table_count = acpi_gbl_root_table_list.max_table_count;
+        } else {
+                table_count = acpi_gbl_root_table_list.current_table_count;
+        }
+        tables = ACPI_ALLOCATE_ZEROED(((acpi_size) table_count +
                                       ACPI_ROOT_TABLE_SIZE_INCREMENT) *
                                      sizeof(struct acpi_table_desc));
        if (!tables) {
@@ -377,8 +383,8 @@ acpi_status acpi_tb_resize_root_table_list(void)
        if (acpi_gbl_root_table_list.tables) {
                ACPI_MEMCPY(tables, acpi_gbl_root_table_list.tables,
-                            (acpi_size) acpi_gbl_root_table_list.
+                            (acpi_size) table_count *
-                            max_table_count * sizeof(struct acpi_table_desc));
+                            sizeof(struct acpi_table_desc));
                if (acpi_gbl_root_table_list.flags & ACPI_ROOT_ORIGIN_ALLOCATED) {
                        ACPI_FREE(acpi_gbl_root_table_list.tables);
@@ -386,9 +392,9 @@ acpi_status acpi_tb_resize_root_table_list(void)
        }
        acpi_gbl_root_table_list.tables = tables;
-        acpi_gbl_root_table_list.max_table_count +=
+        acpi_gbl_root_table_list.max_table_count =
-            ACPI_ROOT_TABLE_SIZE_INCREMENT;
+            table_count + ACPI_ROOT_TABLE_SIZE_INCREMENT;
-        acpi_gbl_root_table_list.flags |= (u8)ACPI_ROOT_ORIGIN_ALLOCATED;
+        acpi_gbl_root_table_list.flags |= ACPI_ROOT_ORIGIN_ALLOCATED;
        return_ACPI_STATUS(AE_OK);
 }
diff --git a/drivers/acpi/acpica/tbxface.c b/drivers/acpi/acpica/tbxface.c
index 29e51bc01383..21101262e47a 100644
--- a/drivers/acpi/acpica/tbxface.c
+++ b/drivers/acpi/acpica/tbxface.c
@@ -159,14 +159,12 @@ acpi_initialize_tables(struct acpi_table_desc * initial_table_array,
 * DESCRIPTION: Reallocate Root Table List into dynamic memory. Copies the
 *              root list from the previously provided scratch area. Should
 *              be called once dynamic memory allocation is available in the
- *              kernel
+ *              kernel.
 *
 ******************************************************************************/
 acpi_status acpi_reallocate_root_table(void)
 {
-        struct acpi_table_desc *tables;
+        acpi_status status;
-        acpi_size new_size;
-        acpi_size current_size;
        ACPI_FUNCTION_TRACE(acpi_reallocate_root_table);
@@ -178,39 +176,10 @@ acpi_status acpi_reallocate_root_table(void)
                return_ACPI_STATUS(AE_SUPPORT);
        }
-        /*
+        acpi_gbl_root_table_list.flags |= ACPI_ROOT_ALLOW_RESIZE;
-         * Get the current size of the root table and add the default
-         * increment to create the new table size.
-         */
-        current_size = (acpi_size)
-            acpi_gbl_root_table_list.current_table_count *
-            sizeof(struct acpi_table_desc);
-        new_size = current_size +
-            (ACPI_ROOT_TABLE_SIZE_INCREMENT * sizeof(struct acpi_table_desc));
-        /* Create new array and copy the old array */
-        tables = ACPI_ALLOCATE_ZEROED(new_size);
-        if (!tables) {
-                return_ACPI_STATUS(AE_NO_MEMORY);
-        }
-        ACPI_MEMCPY(tables, acpi_gbl_root_table_list.tables, current_size);
+        status = acpi_tb_resize_root_table_list();
+        return_ACPI_STATUS(status);
-        /*
-         * Update the root table descriptor. The new size will be the current
-         * number of tables plus the increment, independent of the reserved
-         * size of the original table list.
-         */
-        acpi_gbl_root_table_list.tables = tables;
-        acpi_gbl_root_table_list.max_table_count =
-            acpi_gbl_root_table_list.current_table_count +
-            ACPI_ROOT_TABLE_SIZE_INCREMENT;
-        acpi_gbl_root_table_list.flags =
-            ACPI_ROOT_ORIGIN_ALLOCATED | ACPI_ROOT_ALLOW_RESIZE;
-        return_ACPI_STATUS(AE_OK);
 }
 /*******************************************************************************
diff --git a/drivers/acpi/acpica/utosi.c b/drivers/acpi/acpica/utosi.c
index 34ef0bd7e4b4..676285d6116d 100644
--- a/drivers/acpi/acpica/utosi.c
+++ b/drivers/acpi/acpica/utosi.c
@@ -73,6 +73,7 @@ static struct acpi_interface_info acpi_default_supported_interfaces[] = {
        {"Windows 2006 SP1", NULL, 0, ACPI_OSI_WIN_VISTA_SP1},  /* Windows Vista SP1 - Added 09/2009 */
        {"Windows 2006 SP2", NULL, 0, ACPI_OSI_WIN_VISTA_SP2},  /* Windows Vista SP2 - Added 09/2010 */
        {"Windows 2009", NULL, 0, ACPI_OSI_WIN_7},      /* Windows 7 and Server 2008 R2 - Added 09/2009 */
+        {"Windows 2012", NULL, 0, ACPI_OSI_WIN_8},      /* Windows 8 and Server 2012 - Added 08/2012 */
        /* Feature Group Strings */
diff --git a/drivers/acpi/acpica/utxface.c b/drivers/acpi/acpica/utxface.c
index 534179f1177b..b09632b4f5b3 100644
--- a/drivers/acpi/acpica/utxface.c
+++ b/drivers/acpi/acpica/utxface.c
@@ -1,6 +1,6 @@
 /******************************************************************************
 *
- * Module Name: utxface - External interfaces for "global" ACPI functions
+ * Module Name: utxface - External interfaces, miscellaneous utility functions
 *
 *****************************************************************************/
@@ -53,271 +53,6 @@
 #define _COMPONENT          ACPI_UTILITIES
 ACPI_MODULE_NAME("utxface")
-#ifndef ACPI_ASL_COMPILER
-/*******************************************************************************
- *
- * FUNCTION:    acpi_initialize_subsystem
- *
- * PARAMETERS:  None
- *
- * RETURN:      Status
- *
- * DESCRIPTION: Initializes all global variables.  This is the first function
- *              called, so any early initialization belongs here.
- *
- ******************************************************************************/
-acpi_status __init acpi_initialize_subsystem(void)
-{
-        acpi_status status;
-        ACPI_FUNCTION_TRACE(acpi_initialize_subsystem);
-        acpi_gbl_startup_flags = ACPI_SUBSYSTEM_INITIALIZE;
-        ACPI_DEBUG_EXEC(acpi_ut_init_stack_ptr_trace());
-        /* Initialize the OS-Dependent layer */
-        status = acpi_os_initialize();
-        if (ACPI_FAILURE(status)) {
-                ACPI_EXCEPTION((AE_INFO, status, "During OSL initialization"));
-                return_ACPI_STATUS(status);
-        }
-        /* Initialize all globals used by the subsystem */
-        status = acpi_ut_init_globals();
-        if (ACPI_FAILURE(status)) {
-                ACPI_EXCEPTION((AE_INFO, status,
-                                "During initialization of globals"));
-                return_ACPI_STATUS(status);
-        }
-        /* Create the default mutex objects */
-        status = acpi_ut_mutex_initialize();
-        if (ACPI_FAILURE(status)) {
-                ACPI_EXCEPTION((AE_INFO, status,
-                                "During Global Mutex creation"));
-                return_ACPI_STATUS(status);
-        }
-        /*
-         * Initialize the namespace manager and
-         * the root of the namespace tree
-         */
-        status = acpi_ns_root_initialize();
-        if (ACPI_FAILURE(status)) {
-                ACPI_EXCEPTION((AE_INFO, status,
-                                "During Namespace initialization"));
-                return_ACPI_STATUS(status);
-        }
-        /* Initialize the global OSI interfaces list with the static names */
-        status = acpi_ut_initialize_interfaces();
-        if (ACPI_FAILURE(status)) {
-                ACPI_EXCEPTION((AE_INFO, status,
-                                "During OSI interfaces initialization"));
-                return_ACPI_STATUS(status);
-        }
-        /* If configured, initialize the AML debugger */
-        ACPI_DEBUGGER_EXEC(status = acpi_db_initialize());
-        return_ACPI_STATUS(status);
-}
-/*******************************************************************************
- *
- * FUNCTION:    acpi_enable_subsystem
- *
- * PARAMETERS:  flags           - Init/enable Options
- *
- * RETURN:      Status
- *
- * DESCRIPTION: Completes the subsystem initialization including hardware.
- *              Puts system into ACPI mode if it isn't already.
- *
- ******************************************************************************/
-acpi_status acpi_enable_subsystem(u32 flags)
-{
-        acpi_status status = AE_OK;
-        ACPI_FUNCTION_TRACE(acpi_enable_subsystem);
-#if (!ACPI_REDUCED_HARDWARE)
-        /* Enable ACPI mode */
-        if (!(flags & ACPI_NO_ACPI_ENABLE)) {
-                ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
-                                  "[Init] Going into ACPI mode\n"));
-                acpi_gbl_original_mode = acpi_hw_get_mode();
-                status = acpi_enable();
-                if (ACPI_FAILURE(status)) {
-                        ACPI_WARNING((AE_INFO, "AcpiEnable failed"));
-                        return_ACPI_STATUS(status);
-                }
-        }
-        /*
-         * Obtain a permanent mapping for the FACS. This is required for the
-         * Global Lock and the Firmware Waking Vector
-         */
-        status = acpi_tb_initialize_facs();
-        if (ACPI_FAILURE(status)) {
-                ACPI_WARNING((AE_INFO, "Could not map the FACS table"));
-                return_ACPI_STATUS(status);
-        }
-#endif                          /* !ACPI_REDUCED_HARDWARE */
-        /*
-         * Install the default op_region handlers. These are installed unless
-         * other handlers have already been installed via the
-         * install_address_space_handler interface.
-         */
-        if (!(flags & ACPI_NO_ADDRESS_SPACE_INIT)) {
-                ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
-                                  "[Init] Installing default address space handlers\n"));
-                status = acpi_ev_install_region_handlers();
-                if (ACPI_FAILURE(status)) {
-                        return_ACPI_STATUS(status);
-                }
-        }
-#if (!ACPI_REDUCED_HARDWARE)
-        /*
-         * Initialize ACPI Event handling (Fixed and General Purpose)
-         *
-         * Note1: We must have the hardware and events initialized before we can
-         * execute any control methods safely. Any control method can require
-         * ACPI hardware support, so the hardware must be fully initialized before
-         * any method execution!
-         *
-         * Note2: Fixed events are initialized and enabled here. GPEs are
-         * initialized, but cannot be enabled until after the hardware is
-         * completely initialized (SCI and global_lock activated)
-         */
-        if (!(flags & ACPI_NO_EVENT_INIT)) {
-                ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
-                                  "[Init] Initializing ACPI events\n"));
-                status = acpi_ev_initialize_events();
-                if (ACPI_FAILURE(status)) {
-                        return_ACPI_STATUS(status);
-                }
-        }
-        /*
-         * Install the SCI handler and Global Lock handler. This completes the
-         * hardware initialization.
-         */
-        if (!(flags & ACPI_NO_HANDLER_INIT)) {
-                ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
-                                  "[Init] Installing SCI/GL handlers\n"));
-                status = acpi_ev_install_xrupt_handlers();
-                if (ACPI_FAILURE(status)) {
-                        return_ACPI_STATUS(status);
-                }
-        }
-#endif                          /* !ACPI_REDUCED_HARDWARE */
-        return_ACPI_STATUS(status);
-}
-ACPI_EXPORT_SYMBOL(acpi_enable_subsystem)
-/*******************************************************************************
- *
- * FUNCTION:    acpi_initialize_objects
- *
- * PARAMETERS:  flags           - Init/enable Options
- *
- * RETURN:      Status
- *
- * DESCRIPTION: Completes namespace initialization by initializing device
- *              objects and executing AML code for Regions, buffers, etc.
- *
- ******************************************************************************/
-acpi_status acpi_initialize_objects(u32 flags)
-{
-        acpi_status status = AE_OK;
-        ACPI_FUNCTION_TRACE(acpi_initialize_objects);
-        /*
-         * Run all _REG methods
-         *
-         * Note: Any objects accessed by the _REG methods will be automatically
-         * initialized, even if they contain executable AML (see the call to
-         * acpi_ns_initialize_objects below).
-         */
-        if (!(flags & ACPI_NO_ADDRESS_SPACE_INIT)) {
-                ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
-                                  "[Init] Executing _REG OpRegion methods\n"));
-                status = acpi_ev_initialize_op_regions();
-                if (ACPI_FAILURE(status)) {
-                        return_ACPI_STATUS(status);
-                }
-        }
-        /*
-         * Execute any module-level code that was detected during the table load
-         * phase. Although illegal since ACPI 2.0, there are many machines that
-         * contain this type of code. Each block of detected executable AML code
-         * outside of any control method is wrapped with a temporary control
-         * method object and placed on a global list. The methods on this list
-         * are executed below.
-         */
-        acpi_ns_exec_module_code_list();
-        /*
-         * Initialize the objects that remain uninitialized. This runs the
-         * executable AML that may be part of the declaration of these objects:
-         * operation_regions, buffer_fields, Buffers, and Packages.
-         */
-        if (!(flags & ACPI_NO_OBJECT_INIT)) {
-                ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
-                                  "[Init] Completing Initialization of ACPI Objects\n"));
-                status = acpi_ns_initialize_objects();
-                if (ACPI_FAILURE(status)) {
-                        return_ACPI_STATUS(status);
-                }
-        }
-        /*
-         * Initialize all device objects in the namespace. This runs the device
-         * _STA and _INI methods.
-         */
-        if (!(flags & ACPI_NO_DEVICE_INIT)) {
-                ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
-                                  "[Init] Initializing ACPI Devices\n"));
-                status = acpi_ns_initialize_devices();
-                if (ACPI_FAILURE(status)) {
-                        return_ACPI_STATUS(status);
-                }
-        }
-        /*
-         * Empty the caches (delete the cached objects) on the assumption that
-         * the table load filled them up more than they will be at runtime --
-         * thus wasting non-paged memory.
-         */
-        status = acpi_purge_cached_objects();
-        acpi_gbl_startup_flags |= ACPI_INITIALIZED_OK;
-        return_ACPI_STATUS(status);
-}
-ACPI_EXPORT_SYMBOL(acpi_initialize_objects)
-#endif
 /*******************************************************************************
 *
 * FUNCTION:    acpi_terminate
@@ -683,3 +418,90 @@ acpi_check_address_range(acpi_adr_space_type space_id,
 ACPI_EXPORT_SYMBOL(acpi_check_address_range)
 #endif                          /* !ACPI_ASL_COMPILER */
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_decode_pld_buffer
+ *
+ * PARAMETERS:  in_buffer           - Buffer returned by _PLD method
+ *              length              - Length of the in_buffer
+ *              return_buffer       - Where the decode buffer is returned
+ *
+ * RETURN:      Status and the decoded _PLD buffer. User must deallocate
+ *              the buffer via ACPI_FREE.
+ *
+ * DESCRIPTION: Decode the bit-packed buffer returned by the _PLD method into
+ *              a local struct that is much more useful to an ACPI driver.
+ *
+ ******************************************************************************/
+acpi_status
+acpi_decode_pld_buffer(u8 *in_buffer,
+                       acpi_size length, struct acpi_pld_info ** return_buffer)
+{
+        struct acpi_pld_info *pld_info;
+        u32 *buffer = ACPI_CAST_PTR(u32, in_buffer);
+        u32 dword;
+        /* Parameter validation */
+        if (!in_buffer || !return_buffer || (length < 16)) {
+                return (AE_BAD_PARAMETER);
+        }
+        pld_info = ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_pld_info));
+        if (!pld_info) {
+                return (AE_NO_MEMORY);
+        }
+        /* First 32-bit DWord */
+        ACPI_MOVE_32_TO_32(&dword, &buffer[0]);
+        pld_info->revision = ACPI_PLD_GET_REVISION(&dword);
+        pld_info->ignore_color = ACPI_PLD_GET_IGNORE_COLOR(&dword);
+        pld_info->color = ACPI_PLD_GET_COLOR(&dword);
+        /* Second 32-bit DWord */
+        ACPI_MOVE_32_TO_32(&dword, &buffer[1]);
+        pld_info->width = ACPI_PLD_GET_WIDTH(&dword);
+        pld_info->height = ACPI_PLD_GET_HEIGHT(&dword);
+        /* Third 32-bit DWord */
+        ACPI_MOVE_32_TO_32(&dword, &buffer[2]);
+        pld_info->user_visible = ACPI_PLD_GET_USER_VISIBLE(&dword);
+        pld_info->dock = ACPI_PLD_GET_DOCK(&dword);
+        pld_info->lid = ACPI_PLD_GET_LID(&dword);
+        pld_info->panel = ACPI_PLD_GET_PANEL(&dword);
+        pld_info->vertical_position = ACPI_PLD_GET_VERTICAL(&dword);
+        pld_info->horizontal_position = ACPI_PLD_GET_HORIZONTAL(&dword);
+        pld_info->shape = ACPI_PLD_GET_SHAPE(&dword);
+        pld_info->group_orientation = ACPI_PLD_GET_ORIENTATION(&dword);
+        pld_info->group_token = ACPI_PLD_GET_TOKEN(&dword);
+        pld_info->group_position = ACPI_PLD_GET_POSITION(&dword);
+        pld_info->bay = ACPI_PLD_GET_BAY(&dword);
+        /* Fourth 32-bit DWord */
+        ACPI_MOVE_32_TO_32(&dword, &buffer[3]);
+        pld_info->ejectable = ACPI_PLD_GET_EJECTABLE(&dword);
+        pld_info->ospm_eject_required = ACPI_PLD_GET_OSPM_EJECT(&dword);
+        pld_info->cabinet_number = ACPI_PLD_GET_CABINET(&dword);
+        pld_info->card_cage_number = ACPI_PLD_GET_CARD_CAGE(&dword);
+        pld_info->reference = ACPI_PLD_GET_REFERENCE(&dword);
+        pld_info->rotation = ACPI_PLD_GET_ROTATION(&dword);
+        pld_info->order = ACPI_PLD_GET_ORDER(&dword);
+        if (length >= ACPI_PLD_BUFFER_SIZE) {
+                /* Fifth 32-bit DWord (Revision 2 of _PLD) */
+                ACPI_MOVE_32_TO_32(&dword, &buffer[4]);
+                pld_info->vertical_offset = ACPI_PLD_GET_VERT_OFFSET(&dword);
+                pld_info->horizontal_offset = ACPI_PLD_GET_HORIZ_OFFSET(&dword);
+        }
+        *return_buffer = pld_info;
+        return (AE_OK);
+}
+ACPI_EXPORT_SYMBOL(acpi_decode_pld_buffer)
diff --git a/drivers/acpi/acpica/utxfinit.c b/drivers/acpi/acpica/utxfinit.c
new file mode 100644
index 000000000000..14f523627a5e
--- /dev/null
+++ b/drivers/acpi/acpica/utxfinit.c
@@ -0,0 +1,317 @@
+/******************************************************************************
+ *
+ * Module Name: utxfinit - External interfaces for ACPICA initialization
+ *
+ *****************************************************************************/
+/*
+ * Copyright (C) 2000 - 2012, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions, and the following disclaimer,
+ *    without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ *    substantially similar to the "NO WARRANTY" disclaimer below
+ *    ("Disclaimer") and any redistribution must be conditioned upon
+ *    including a substantially similar Disclaimer requirement for further
+ *    binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ *    of any contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+#include <linux/export.h>
+#include <acpi/acpi.h>
+#include "accommon.h"
+#include "acevents.h"
+#include "acnamesp.h"
+#include "acdebug.h"
+#include "actables.h"
+#define _COMPONENT          ACPI_UTILITIES
+ACPI_MODULE_NAME("utxfinit")
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_initialize_subsystem
+ *
+ * PARAMETERS:  None
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Initializes all global variables. This is the first function
+ *              called, so any early initialization belongs here.
+ *
+ ******************************************************************************/
+acpi_status acpi_initialize_subsystem(void)
+{
+        acpi_status status;
+        ACPI_FUNCTION_TRACE(acpi_initialize_subsystem);
+        acpi_gbl_startup_flags = ACPI_SUBSYSTEM_INITIALIZE;
+        ACPI_DEBUG_EXEC(acpi_ut_init_stack_ptr_trace());
+        /* Initialize the OS-Dependent layer */
+        status = acpi_os_initialize();
+        if (ACPI_FAILURE(status)) {
+                ACPI_EXCEPTION((AE_INFO, status, "During OSL initialization"));
+                return_ACPI_STATUS(status);
+        }
+        /* Initialize all globals used by the subsystem */
+        status = acpi_ut_init_globals();
+        if (ACPI_FAILURE(status)) {
+                ACPI_EXCEPTION((AE_INFO, status,
+                                "During initialization of globals"));
+                return_ACPI_STATUS(status);
+        }
+        /* Create the default mutex objects */
+        status = acpi_ut_mutex_initialize();
+        if (ACPI_FAILURE(status)) {
+                ACPI_EXCEPTION((AE_INFO, status,
+                                "During Global Mutex creation"));
+                return_ACPI_STATUS(status);
+        }
+        /*
+         * Initialize the namespace manager and
+         * the root of the namespace tree
+         */
+        status = acpi_ns_root_initialize();
+        if (ACPI_FAILURE(status)) {
+                ACPI_EXCEPTION((AE_INFO, status,
+                                "During Namespace initialization"));
+                return_ACPI_STATUS(status);
+        }
+        /* Initialize the global OSI interfaces list with the static names */
+        status = acpi_ut_initialize_interfaces();
+        if (ACPI_FAILURE(status)) {
+                ACPI_EXCEPTION((AE_INFO, status,
+                                "During OSI interfaces initialization"));
+                return_ACPI_STATUS(status);
+        }
+        /* If configured, initialize the AML debugger */
+        ACPI_DEBUGGER_EXEC(status = acpi_db_initialize());
+        return_ACPI_STATUS(status);
+}
+ACPI_EXPORT_SYMBOL(acpi_initialize_subsystem)
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_enable_subsystem
+ *
+ * PARAMETERS:  flags               - Init/enable Options
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Completes the subsystem initialization including hardware.
+ *              Puts system into ACPI mode if it isn't already.
+ *
+ ******************************************************************************/
+acpi_status acpi_enable_subsystem(u32 flags)
+{
+        acpi_status status = AE_OK;
+        ACPI_FUNCTION_TRACE(acpi_enable_subsystem);
+#if (!ACPI_REDUCED_HARDWARE)
+        /* Enable ACPI mode */
+        if (!(flags & ACPI_NO_ACPI_ENABLE)) {
+                ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
+                                  "[Init] Going into ACPI mode\n"));
+                acpi_gbl_original_mode = acpi_hw_get_mode();
+                status = acpi_enable();
+                if (ACPI_FAILURE(status)) {
+                        ACPI_WARNING((AE_INFO, "AcpiEnable failed"));
+                        return_ACPI_STATUS(status);
+                }
+        }
+        /*
+         * Obtain a permanent mapping for the FACS. This is required for the
+         * Global Lock and the Firmware Waking Vector
+         */
+        status = acpi_tb_initialize_facs();
+        if (ACPI_FAILURE(status)) {
+                ACPI_WARNING((AE_INFO, "Could not map the FACS table"));
+                return_ACPI_STATUS(status);
+        }
+#endif                          /* !ACPI_REDUCED_HARDWARE */
+        /*
+         * Install the default op_region handlers. These are installed unless
+         * other handlers have already been installed via the
+         * install_address_space_handler interface.
+         */
+        if (!(flags & ACPI_NO_ADDRESS_SPACE_INIT)) {
+                ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
+                                  "[Init] Installing default address space handlers\n"));
+                status = acpi_ev_install_region_handlers();
+                if (ACPI_FAILURE(status)) {
+                        return_ACPI_STATUS(status);
+                }
+        }
+#if (!ACPI_REDUCED_HARDWARE)
+        /*
+         * Initialize ACPI Event handling (Fixed and General Purpose)
+         *
+         * Note1: We must have the hardware and events initialized before we can
+         * execute any control methods safely. Any control method can require
+         * ACPI hardware support, so the hardware must be fully initialized before
+         * any method execution!
+         *
+         * Note2: Fixed events are initialized and enabled here. GPEs are
+         * initialized, but cannot be enabled until after the hardware is
+         * completely initialized (SCI and global_lock activated) and the various
+         * initialization control methods are run (_REG, _STA, _INI) on the
+         * entire namespace.
+         */
+        if (!(flags & ACPI_NO_EVENT_INIT)) {
+                ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
+                                  "[Init] Initializing ACPI events\n"));
+                status = acpi_ev_initialize_events();
+                if (ACPI_FAILURE(status)) {
+                        return_ACPI_STATUS(status);
+                }
+        }
+        /*
+         * Install the SCI handler and Global Lock handler. This completes the
+         * hardware initialization.
+         */
+        if (!(flags & ACPI_NO_HANDLER_INIT)) {
+                ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
+                                  "[Init] Installing SCI/GL handlers\n"));
+                status = acpi_ev_install_xrupt_handlers();
+                if (ACPI_FAILURE(status)) {
+                        return_ACPI_STATUS(status);
+                }
+        }
+#endif                          /* !ACPI_REDUCED_HARDWARE */
+        return_ACPI_STATUS(status);
+}
+ACPI_EXPORT_SYMBOL(acpi_enable_subsystem)
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_initialize_objects
+ *
+ * PARAMETERS:  flags               - Init/enable Options
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Completes namespace initialization by initializing device
+ *              objects and executing AML code for Regions, buffers, etc.
+ *
+ ******************************************************************************/
+acpi_status acpi_initialize_objects(u32 flags)
+{
+        acpi_status status = AE_OK;
+        ACPI_FUNCTION_TRACE(acpi_initialize_objects);
+        /*
+         * Run all _REG methods
+         *
+         * Note: Any objects accessed by the _REG methods will be automatically
+         * initialized, even if they contain executable AML (see the call to
+         * acpi_ns_initialize_objects below).
+         */
+        if (!(flags & ACPI_NO_ADDRESS_SPACE_INIT)) {
+                ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
+                                  "[Init] Executing _REG OpRegion methods\n"));
+                status = acpi_ev_initialize_op_regions();
+                if (ACPI_FAILURE(status)) {
+                        return_ACPI_STATUS(status);
+                }
+        }
+        /*
+         * Execute any module-level code that was detected during the table load
+         * phase. Although illegal since ACPI 2.0, there are many machines that
+         * contain this type of code. Each block of detected executable AML code
+         * outside of any control method is wrapped with a temporary control
+         * method object and placed on a global list. The methods on this list
+         * are executed below.
+         */
+        acpi_ns_exec_module_code_list();
+        /*
+         * Initialize the objects that remain uninitialized. This runs the
+         * executable AML that may be part of the declaration of these objects:
+         * operation_regions, buffer_fields, Buffers, and Packages.
+         */
+        if (!(flags & ACPI_NO_OBJECT_INIT)) {
+                ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
+                                  "[Init] Completing Initialization of ACPI Objects\n"));
+                status = acpi_ns_initialize_objects();
+                if (ACPI_FAILURE(status)) {
+                        return_ACPI_STATUS(status);
+                }
+        }
+        /*
+         * Initialize all device objects in the namespace. This runs the device
+         * _STA and _INI methods.
+         */
+        if (!(flags & ACPI_NO_DEVICE_INIT)) {
+                ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
+                                  "[Init] Initializing ACPI Devices\n"));
+                status = acpi_ns_initialize_devices();
+                if (ACPI_FAILURE(status)) {
+                        return_ACPI_STATUS(status);
+                }
+        }
+        /*
+         * Empty the caches (delete the cached objects) on the assumption that
+         * the table load filled them up more than they will be at runtime --
+         * thus wasting non-paged memory.
+         */
+        status = acpi_purge_cached_objects();
+        acpi_gbl_startup_flags |= ACPI_INITIALIZED_OK;
+        return_ACPI_STATUS(status);
+}
+ACPI_EXPORT_SYMBOL(acpi_initialize_objects)
diff --git a/drivers/acpi/button.c b/drivers/acpi/button.c
index 314a3b84bbc7..f0d936b65e37 100644
--- a/drivers/acpi/button.c
+++ b/drivers/acpi/button.c
@@ -450,15 +450,4 @@ static int acpi_button_remove(struct acpi_device *device, int type)
        return 0;
 }
-static int __init acpi_button_init(void)
+module_acpi_driver(acpi_button_driver);
-{
-        return acpi_bus_register_driver(&acpi_button_driver);
-}
-static void __exit acpi_button_exit(void)
-{
-        acpi_bus_unregister_driver(&acpi_button_driver);
-}
-module_init(acpi_button_init);
-module_exit(acpi_button_exit);
diff --git a/drivers/acpi/fan.c b/drivers/acpi/fan.c
index bc36a476f1ab..3bd6a54702d6 100644
--- a/drivers/acpi/fan.c
+++ b/drivers/acpi/fan.c
@@ -212,24 +212,4 @@ static int acpi_fan_resume(struct device *dev)
 }
 #endif
-static int __init acpi_fan_init(void)
+module_acpi_driver(acpi_fan_driver);
-{
-        int result = 0;
-        result = acpi_bus_register_driver(&acpi_fan_driver);
-        if (result < 0)
-                return -ENODEV;
-        return 0;
-}
-static void __exit acpi_fan_exit(void)
-{
-        acpi_bus_unregister_driver(&acpi_fan_driver);
-        return;
-}
-module_init(acpi_fan_init);
-module_exit(acpi_fan_exit);
diff --git a/drivers/acpi/glue.c b/drivers/acpi/glue.c
index 243ee85e4d2e..d1a2d74033e9 100644
--- a/drivers/acpi/glue.c
+++ b/drivers/acpi/glue.c
@@ -25,6 +25,8 @@
 static LIST_HEAD(bus_type_list);
 static DECLARE_RWSEM(bus_type_sem);
+#define PHYSICAL_NODE_STRING "physical_node"
 int register_acpi_bus_type(struct acpi_bus_type *type)
 {
        if (acpi_disabled)
@@ -124,84 +126,119 @@ acpi_handle acpi_get_child(acpi_handle parent, u64 address)
 EXPORT_SYMBOL(acpi_get_child);
-/* Link ACPI devices with physical devices */
-static void acpi_glue_data_handler(acpi_handle handle,
-                                   void *context)
-{
-        /* we provide an empty handler */
-}
-/* Note: a success call will increase reference count by one */
-struct device *acpi_get_physical_device(acpi_handle handle)
-{
-        acpi_status status;
-        struct device *dev;
-        status = acpi_get_data(handle, acpi_glue_data_handler, (void **)&dev);
-        if (ACPI_SUCCESS(status))
-                return get_device(dev);
-        return NULL;
-}
-EXPORT_SYMBOL(acpi_get_physical_device);
 static int acpi_bind_one(struct device *dev, acpi_handle handle)
 {
        struct acpi_device *acpi_dev;
        acpi_status status;
+        struct acpi_device_physical_node *physical_node;
+        char physical_node_name[sizeof(PHYSICAL_NODE_STRING) + 2];
+        int retval = -EINVAL;
        if (dev->archdata.acpi_handle) {
                dev_warn(dev, "Drivers changed 'acpi_handle'\n");
                return -EINVAL;
        }
        get_device(dev);
-        status = acpi_attach_data(handle, acpi_glue_data_handler, dev);
+        status = acpi_bus_get_device(handle, &acpi_dev);
-        if (ACPI_FAILURE(status)) {
+        if (ACPI_FAILURE(status))
-                put_device(dev);
+                goto err;
-                return -EINVAL;
+        physical_node = kzalloc(sizeof(struct acpi_device_physical_node),
+                GFP_KERNEL);
+        if (!physical_node) {
+                retval = -ENOMEM;
+                goto err;
        }
-        dev->archdata.acpi_handle = handle;
-        status = acpi_bus_get_device(handle, &acpi_dev);
+        mutex_lock(&acpi_dev->physical_node_lock);
-        if (!ACPI_FAILURE(status)) {
+        /* allocate physical node id according to physical_node_id_bitmap */
-                int ret;
+        physical_node->node_id =
+                find_first_zero_bit(acpi_dev->physical_node_id_bitmap,
-                ret = sysfs_create_link(&dev->kobj, &acpi_dev->dev.kobj,
+                ACPI_MAX_PHYSICAL_NODE);
-                                "firmware_node");
+        if (physical_node->node_id >= ACPI_MAX_PHYSICAL_NODE) {
-                ret = sysfs_create_link(&acpi_dev->dev.kobj, &dev->kobj,
+                retval = -ENOSPC;
-                                "physical_node");
+                mutex_unlock(&acpi_dev->physical_node_lock);
-                if (acpi_dev->wakeup.flags.valid)
+                goto err;
-                        device_set_wakeup_capable(dev, true);
        }
+        set_bit(physical_node->node_id, acpi_dev->physical_node_id_bitmap);
+        physical_node->dev = dev;
+        list_add_tail(&physical_node->node, &acpi_dev->physical_node_list);
+        acpi_dev->physical_node_count++;
+        mutex_unlock(&acpi_dev->physical_node_lock);
+        dev->archdata.acpi_handle = handle;
+        if (!physical_node->node_id)
+                strcpy(physical_node_name, PHYSICAL_NODE_STRING);
+        else
+                sprintf(physical_node_name,
+                        "physical_node%d", physical_node->node_id);
+        retval = sysfs_create_link(&acpi_dev->dev.kobj, &dev->kobj,
+                        physical_node_name);
+        retval = sysfs_create_link(&dev->kobj, &acpi_dev->dev.kobj,
+                "firmware_node");
+        if (acpi_dev->wakeup.flags.valid)
+                device_set_wakeup_capable(dev, true);
        return 0;
+ err:
+        put_device(dev);
+        return retval;
 }
 static int acpi_unbind_one(struct device *dev)
 {
+        struct acpi_device_physical_node *entry;
+        struct acpi_device *acpi_dev;
+        acpi_status status;
+        struct list_head *node, *next;
        if (!dev->archdata.acpi_handle)
                return 0;
-        if (dev == acpi_get_physical_device(dev->archdata.acpi_handle)) {
-                struct acpi_device *acpi_dev;
-                /* acpi_get_physical_device increase refcnt by one */
+        status = acpi_bus_get_device(dev->archdata.acpi_handle,
-                put_device(dev);
+                &acpi_dev);
+        if (ACPI_FAILURE(status))
+                goto err;
-                if (!acpi_bus_get_device(dev->archdata.acpi_handle,
+        mutex_lock(&acpi_dev->physical_node_lock);
-                                        &acpi_dev)) {
+        list_for_each_safe(node, next, &acpi_dev->physical_node_list) {
-                        sysfs_remove_link(&dev->kobj, "firmware_node");
+                char physical_node_name[sizeof(PHYSICAL_NODE_STRING) + 2];
-                        sysfs_remove_link(&acpi_dev->dev.kobj, "physical_node");
-                }
+                entry = list_entry(node, struct acpi_device_physical_node,
+                        node);
+                if (entry->dev != dev)
+                        continue;
+                list_del(node);
+                clear_bit(entry->node_id, acpi_dev->physical_node_id_bitmap);
-                acpi_detach_data(dev->archdata.acpi_handle,
+                acpi_dev->physical_node_count--;
-                                 acpi_glue_data_handler);
+                if (!entry->node_id)
+                        strcpy(physical_node_name, PHYSICAL_NODE_STRING);
+                else
+                        sprintf(physical_node_name,
+                                "physical_node%d", entry->node_id);
+                sysfs_remove_link(&acpi_dev->dev.kobj, physical_node_name);
+                sysfs_remove_link(&dev->kobj, "firmware_node");
                dev->archdata.acpi_handle = NULL;
                /* acpi_bind_one increase refcnt by one */
                put_device(dev);
-        } else {
+                kfree(entry);
-                dev_err(dev, "Oops, 'acpi_handle' corrupt\n");
        }
+        mutex_unlock(&acpi_dev->physical_node_lock);
        return 0;
+err:
+        dev_err(dev, "Oops, 'acpi_handle' corrupt\n");
+        return -EINVAL;
 }
 static int acpi_platform_notify(struct device *dev)
diff --git a/drivers/acpi/hed.c b/drivers/acpi/hed.c
index d0c1967f7597..20a0f2c3ca3b 100644
--- a/drivers/acpi/hed.c
+++ b/drivers/acpi/hed.c
@@ -86,25 +86,7 @@ static struct acpi_driver acpi_hed_driver = {
                .notify = acpi_hed_notify,
        },
 };
+module_acpi_driver(acpi_hed_driver);
-static int __init acpi_hed_init(void)
-{
-        if (acpi_disabled)
-                return -ENODEV;
-        if (acpi_bus_register_driver(&acpi_hed_driver) < 0)
-                return -ENODEV;
-        return 0;
-}
-static void __exit acpi_hed_exit(void)
-{
-        acpi_bus_unregister_driver(&acpi_hed_driver);
-}
-module_init(acpi_hed_init);
-module_exit(acpi_hed_exit);
 ACPI_MODULE_NAME("hed");
 MODULE_AUTHOR("Huang Ying");
diff --git a/drivers/acpi/proc.c b/drivers/acpi/proc.c
index 251c7b6273a9..27adb090bb30 100644
--- a/drivers/acpi/proc.c
+++ b/drivers/acpi/proc.c
@@ -302,26 +302,41 @@ acpi_system_wakeup_device_seq_show(struct seq_file *seq, void *offset)
        list_for_each_safe(node, next, &acpi_wakeup_device_list) {
                struct acpi_device *dev =
                    container_of(node, struct acpi_device, wakeup_list);
-                struct device *ldev;
+                struct acpi_device_physical_node *entry;
                if (!dev->wakeup.flags.valid)
                        continue;
-                ldev = acpi_get_physical_device(dev->handle);
+                seq_printf(seq, "%s\t  S%d\t",
-                seq_printf(seq, "%s\t  S%d\t%c%-8s  ",
                           dev->pnp.bus_id,
-                           (u32) dev->wakeup.sleep_state,
+                           (u32) dev->wakeup.sleep_state);
-                           dev->wakeup.flags.run_wake ? '*' : ' ',
-                           (device_may_wakeup(&dev->dev)
+                if (!dev->physical_node_count)
-                             || (ldev && device_may_wakeup(ldev))) ?
+                        seq_printf(seq, "%c%-8s\n",
-                               "enabled" : "disabled");
+                                dev->wakeup.flags.run_wake ?
-                if (ldev)
+                                '*' : ' ', "disabled");
-                        seq_printf(seq, "%s:%s",
+                else {
-                                   ldev->bus ? ldev->bus->name : "no-bus",
+                        struct device *ldev;
-                                   dev_name(ldev));
+                        list_for_each_entry(entry, &dev->physical_node_list,
-                seq_printf(seq, "\n");
+                                        node) {
-                put_device(ldev);
+                                ldev = get_device(entry->dev);
+                                if (!ldev)
+                                        continue;
+                                if (&entry->node !=
+                                                dev->physical_node_list.next)
+                                        seq_printf(seq, "\t\t");
+                                seq_printf(seq, "%c%-8s  %s:%s\n",
+                                        dev->wakeup.flags.run_wake ? '*' : ' ',
+                                        (device_may_wakeup(&dev->dev) ||
+                                        (ldev && device_may_wakeup(ldev))) ?
+                                        "enabled" : "disabled",
+                                        ldev->bus ? ldev->bus->name :
+                                        "no-bus", dev_name(ldev));
+                                put_device(ldev);
+                        }
+                }
        }
        mutex_unlock(&acpi_device_lock);
        return 0;
@@ -329,12 +344,14 @@ acpi_system_wakeup_device_seq_show(struct seq_file *seq, void *offset)
 static void physical_device_enable_wakeup(struct acpi_device *adev)
 {
-        struct device *dev = acpi_get_physical_device(adev->handle);
+        struct acpi_device_physical_node *entry;
-        if (dev && device_can_wakeup(dev)) {
+        list_for_each_entry(entry,
-                bool enable = !device_may_wakeup(dev);
+                &adev->physical_node_list, node)
-                device_set_wakeup_enable(dev, enable);
+                if (entry->dev && device_can_wakeup(entry->dev)) {
-        }
+                        bool enable = !device_may_wakeup(entry->dev);
+                        device_set_wakeup_enable(entry->dev, enable);
+                }
 }
 static ssize_t
diff --git a/drivers/acpi/sbshc.c b/drivers/acpi/sbshc.c
index f8d2a472795c..cf6129a8af7c 100644
--- a/drivers/acpi/sbshc.c
+++ b/drivers/acpi/sbshc.c
@@ -310,23 +310,7 @@ static int acpi_smbus_hc_remove(struct acpi_device *device, int type)
        return 0;
 }
-static int __init acpi_smb_hc_init(void)
+module_acpi_driver(acpi_smb_hc_driver);
-{
-        int result;
-        result = acpi_bus_register_driver(&acpi_smb_hc_driver);
-        if (result < 0)
-                return -ENODEV;
-        return 0;
-}
-static void __exit acpi_smb_hc_exit(void)
-{
-        acpi_bus_unregister_driver(&acpi_smb_hc_driver);
-}
-module_init(acpi_smb_hc_init);
-module_exit(acpi_smb_hc_exit);
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Alexey Starikovskiy");
diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index 04302835723d..1fcb8678665c 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -531,6 +531,8 @@ static int acpi_device_register(struct acpi_device *device)
        INIT_LIST_HEAD(&device->children);
        INIT_LIST_HEAD(&device->node);
        INIT_LIST_HEAD(&device->wakeup_list);
+        INIT_LIST_HEAD(&device->physical_node_list);
+        mutex_init(&device->physical_node_lock);
        new_bus_id = kzalloc(sizeof(struct acpi_device_bus_id), GFP_KERNEL);
        if (!new_bus_id) {
diff --git a/drivers/acpi/utils.c b/drivers/acpi/utils.c
index 3e87c9c538aa..462f7e300363 100644
--- a/drivers/acpi/utils.c
+++ b/drivers/acpi/utils.c
@@ -384,7 +384,7 @@ acpi_evaluate_reference(acpi_handle handle,
 EXPORT_SYMBOL(acpi_evaluate_reference);
 acpi_status
-acpi_get_physical_device_location(acpi_handle handle, struct acpi_pld *pld)
+acpi_get_physical_device_location(acpi_handle handle, struct acpi_pld_info **pld)
 {
        acpi_status status;
        struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
@@ -400,13 +400,16 @@ acpi_get_physical_device_location(acpi_handle handle, struct acpi_pld *pld)
        if (!output || output->type != ACPI_TYPE_PACKAGE
            || !output->package.count
            || output->package.elements[0].type != ACPI_TYPE_BUFFER
-            || output->package.elements[0].buffer.length > sizeof(*pld)) {
+            || output->package.elements[0].buffer.length < ACPI_PLD_REV1_BUFFER_SIZE) {
                status = AE_TYPE;
                goto out;
        }
-        memcpy(pld, output->package.elements[0].buffer.pointer,
+        status = acpi_decode_pld_buffer(
-               output->package.elements[0].buffer.length);
+                        output->package.elements[0].buffer.pointer,
+                        output->package.elements[0].buffer.length,
+                        pld);
 out:
        kfree(buffer.pointer);
        return status;
diff --git a/drivers/block/nvme.c b/drivers/block/nvme.c
index 38a2d0631882..ad16c68c8645 100644
--- a/drivers/block/nvme.c
+++ b/drivers/block/nvme.c
@@ -79,6 +79,7 @@ struct nvme_dev {
        char serial[20];
        char model[40];
        char firmware_rev[8];
+        u32 max_hw_sectors;
 };
 /*
@@ -835,15 +836,15 @@ static int nvme_identify(struct nvme_dev *dev, unsigned nsid, unsigned cns,
 }
 static int nvme_get_features(struct nvme_dev *dev, unsigned fid,
-                                unsigned dword11, dma_addr_t dma_addr)
+                                unsigned nsid, dma_addr_t dma_addr)
 {
        struct nvme_command c;
        memset(&c, 0, sizeof(c));
        c.features.opcode = nvme_admin_get_features;
+        c.features.nsid = cpu_to_le32(nsid);
        c.features.prp1 = cpu_to_le64(dma_addr);
        c.features.fid = cpu_to_le32(fid);
-        c.features.dword11 = cpu_to_le32(dword11);
        return nvme_submit_admin_cmd(dev, &c, NULL);
 }
@@ -862,11 +863,51 @@ static int nvme_set_features(struct nvme_dev *dev, unsigned fid,
        return nvme_submit_admin_cmd(dev, &c, result);
 }
+/**
+ * nvme_cancel_ios - Cancel outstanding I/Os
+ * @queue: The queue to cancel I/Os on
+ * @timeout: True to only cancel I/Os which have timed out
+ */
+static void nvme_cancel_ios(struct nvme_queue *nvmeq, bool timeout)
+{
+        int depth = nvmeq->q_depth - 1;
+        struct nvme_cmd_info *info = nvme_cmd_info(nvmeq);
+        unsigned long now = jiffies;
+        int cmdid;
+        for_each_set_bit(cmdid, nvmeq->cmdid_data, depth) {
+                void *ctx;
+                nvme_completion_fn fn;
+                static struct nvme_completion cqe = {
+                        .status = cpu_to_le16(NVME_SC_ABORT_REQ) << 1,
+                };
+                if (timeout && !time_after(now, info[cmdid].timeout))
+                        continue;
+                dev_warn(nvmeq->q_dmadev, "Cancelling I/O %d\n", cmdid);
+                ctx = cancel_cmdid(nvmeq, cmdid, &fn);
+                fn(nvmeq->dev, ctx, &cqe);
+        }
+}
+static void nvme_free_queue_mem(struct nvme_queue *nvmeq)
+{
+        dma_free_coherent(nvmeq->q_dmadev, CQ_SIZE(nvmeq->q_depth),
+                                (void *)nvmeq->cqes, nvmeq->cq_dma_addr);
+        dma_free_coherent(nvmeq->q_dmadev, SQ_SIZE(nvmeq->q_depth),
+                                        nvmeq->sq_cmds, nvmeq->sq_dma_addr);
+        kfree(nvmeq);
+}
 static void nvme_free_queue(struct nvme_dev *dev, int qid)
 {
        struct nvme_queue *nvmeq = dev->queues[qid];
        int vector = dev->entry[nvmeq->cq_vector].vector;
+        spin_lock_irq(&nvmeq->q_lock);
+        nvme_cancel_ios(nvmeq, false);
+        spin_unlock_irq(&nvmeq->q_lock);
        irq_set_affinity_hint(vector, NULL);
        free_irq(vector, nvmeq);
@@ -876,18 +917,15 @@ static void nvme_free_queue(struct nvme_dev *dev, int qid)
                adapter_delete_cq(dev, qid);
        }
-        dma_free_coherent(nvmeq->q_dmadev, CQ_SIZE(nvmeq->q_depth),
+        nvme_free_queue_mem(nvmeq);
-                                (void *)nvmeq->cqes, nvmeq->cq_dma_addr);
-        dma_free_coherent(nvmeq->q_dmadev, SQ_SIZE(nvmeq->q_depth),
-                                        nvmeq->sq_cmds, nvmeq->sq_dma_addr);
-        kfree(nvmeq);
 }
 static struct nvme_queue *nvme_alloc_queue(struct nvme_dev *dev, int qid,
                                                        int depth, int vector)
 {
        struct device *dmadev = &dev->pci_dev->dev;
-        unsigned extra = (depth / 8) + (depth * sizeof(struct nvme_cmd_info));
+        unsigned extra = DIV_ROUND_UP(depth, 8) + (depth *
+                                                sizeof(struct nvme_cmd_info));
        struct nvme_queue *nvmeq = kzalloc(sizeof(*nvmeq) + extra, GFP_KERNEL);
        if (!nvmeq)
                return NULL;
@@ -975,7 +1013,7 @@ static __devinit struct nvme_queue *nvme_create_queue(struct nvme_dev *dev,
 static int __devinit nvme_configure_admin_queue(struct nvme_dev *dev)
 {
-        int result;
+        int result = 0;
        u32 aqa;
        u64 cap;
        unsigned long timeout;
@@ -1005,17 +1043,22 @@ static int __devinit nvme_configure_admin_queue(struct nvme_dev *dev)
        timeout = ((NVME_CAP_TIMEOUT(cap) + 1) * HZ / 2) + jiffies;
        dev->db_stride = NVME_CAP_STRIDE(cap);
-        while (!(readl(&dev->bar->csts) & NVME_CSTS_RDY)) {
+        while (!result && !(readl(&dev->bar->csts) & NVME_CSTS_RDY)) {
                msleep(100);
                if (fatal_signal_pending(current))
-                        return -EINTR;
+                        result = -EINTR;
                if (time_after(jiffies, timeout)) {
                        dev_err(&dev->pci_dev->dev,
                                "Device not ready; aborting initialisation\n");
-                        return -ENODEV;
+                        result = -ENODEV;
                }
        }
+        if (result) {
+                nvme_free_queue_mem(nvmeq);
+                return result;
+        }
        result = queue_request_irq(dev, nvmeq, "nvme admin");
        dev->queues[0] = nvmeq;
        return result;
@@ -1037,6 +1080,8 @@ static struct nvme_iod *nvme_map_user_pages(struct nvme_dev *dev, int write,
        offset = offset_in_page(addr);
        count = DIV_ROUND_UP(offset + length, PAGE_SIZE);
        pages = kcalloc(count, sizeof(*pages), GFP_KERNEL);
+        if (!pages)
+                return ERR_PTR(-ENOMEM);
        err = get_user_pages_fast(addr, count, 1, pages);
        if (err < count) {
@@ -1146,14 +1191,13 @@ static int nvme_submit_io(struct nvme_ns *ns, struct nvme_user_io __user *uio)
        return status;
 }
-static int nvme_user_admin_cmd(struct nvme_ns *ns,
+static int nvme_user_admin_cmd(struct nvme_dev *dev,
                                        struct nvme_admin_cmd __user *ucmd)
 {
-        struct nvme_dev *dev = ns->dev;
        struct nvme_admin_cmd cmd;
        struct nvme_command c;
        int status, length;
-        struct nvme_iod *iod;
+        struct nvme_iod *uninitialized_var(iod);
        if (!capable(CAP_SYS_ADMIN))
                return -EACCES;
@@ -1204,7 +1248,7 @@ static int nvme_ioctl(struct block_device *bdev, fmode_t mode, unsigned int cmd,
        case NVME_IOCTL_ID:
                return ns->ns_id;
        case NVME_IOCTL_ADMIN_CMD:
-                return nvme_user_admin_cmd(ns, (void __user *)arg);
+                return nvme_user_admin_cmd(ns->dev, (void __user *)arg);
        case NVME_IOCTL_SUBMIT_IO:
                return nvme_submit_io(ns, (void __user *)arg);
        default:
@@ -1218,26 +1262,6 @@ static const struct block_device_operations nvme_fops = {
        .compat_ioctl   = nvme_ioctl,
 };
-static void nvme_timeout_ios(struct nvme_queue *nvmeq)
-{
-        int depth = nvmeq->q_depth - 1;
-        struct nvme_cmd_info *info = nvme_cmd_info(nvmeq);
-        unsigned long now = jiffies;
-        int cmdid;
-        for_each_set_bit(cmdid, nvmeq->cmdid_data, depth) {
-                void *ctx;
-                nvme_completion_fn fn;
-                static struct nvme_completion cqe = { .status = cpu_to_le16(NVME_SC_ABORT_REQ) << 1, };
-                if (!time_after(now, info[cmdid].timeout))
-                        continue;
-                dev_warn(nvmeq->q_dmadev, "Timing out I/O %d\n", cmdid);
-                ctx = cancel_cmdid(nvmeq, cmdid, &fn);
-                fn(nvmeq->dev, ctx, &cqe);
-        }
-}
 static void nvme_resubmit_bios(struct nvme_queue *nvmeq)
 {
        while (bio_list_peek(&nvmeq->sq_cong)) {
@@ -1269,7 +1293,7 @@ static int nvme_kthread(void *data)
                                spin_lock_irq(&nvmeq->q_lock);
                                if (nvme_process_cq(nvmeq))
                                        printk("process_cq did something\n");
-                                nvme_timeout_ios(nvmeq);
+                                nvme_cancel_ios(nvmeq, true);
                                nvme_resubmit_bios(nvmeq);
                                spin_unlock_irq(&nvmeq->q_lock);
                        }
@@ -1339,6 +1363,9 @@ static struct nvme_ns *nvme_alloc_ns(struct nvme_dev *dev, int nsid,
        ns->disk = disk;
        lbaf = id->flbas & 0xf;
        ns->lba_shift = id->lbaf[lbaf].ds;
+        blk_queue_logical_block_size(ns->queue, 1 << ns->lba_shift);
+        if (dev->max_hw_sectors)
+                blk_queue_max_hw_sectors(ns->queue, dev->max_hw_sectors);
        disk->major = nvme_major;
        disk->minors = NVME_MINORS;
@@ -1383,7 +1410,7 @@ static int set_queue_count(struct nvme_dev *dev, int count)
 static int __devinit nvme_setup_io_queues(struct nvme_dev *dev)
 {
-        int result, cpu, i, nr_io_queues, db_bar_size;
+        int result, cpu, i, nr_io_queues, db_bar_size, q_depth;
        nr_io_queues = num_online_cpus();
        result = set_queue_count(dev, nr_io_queues);
@@ -1429,9 +1456,10 @@ static int __devinit nvme_setup_io_queues(struct nvme_dev *dev)
                cpu = cpumask_next(cpu, cpu_online_mask);
        }
+        q_depth = min_t(int, NVME_CAP_MQES(readq(&dev->bar->cap)) + 1,
+                                                                NVME_Q_DEPTH);
        for (i = 0; i < nr_io_queues; i++) {
-                dev->queues[i + 1] = nvme_create_queue(dev, i + 1,
+                dev->queues[i + 1] = nvme_create_queue(dev, i + 1, q_depth, i);
-                                                        NVME_Q_DEPTH, i);
                if (IS_ERR(dev->queues[i + 1]))
                        return PTR_ERR(dev->queues[i + 1]);
                dev->queue_count++;
@@ -1480,6 +1508,10 @@ static int __devinit nvme_dev_add(struct nvme_dev *dev)
        memcpy(dev->serial, ctrl->sn, sizeof(ctrl->sn));
        memcpy(dev->model, ctrl->mn, sizeof(ctrl->mn));
        memcpy(dev->firmware_rev, ctrl->fr, sizeof(ctrl->fr));
+        if (ctrl->mdts) {
+                int shift = NVME_CAP_MPSMIN(readq(&dev->bar->cap)) + 12;
+                dev->max_hw_sectors = 1 << (ctrl->mdts + shift - 9);
+        }
        id_ns = mem;
        for (i = 1; i <= nn; i++) {
@@ -1523,8 +1555,6 @@ static int nvme_dev_remove(struct nvme_dev *dev)
        list_del(&dev->node);
        spin_unlock(&dev_list_lock);
-        /* TODO: wait all I/O finished or cancel them */
        list_for_each_entry_safe(ns, next, &dev->namespaces, list) {
                list_del(&ns->list);
                del_gendisk(ns->disk);
@@ -1560,15 +1590,33 @@ static void nvme_release_prp_pools(struct nvme_dev *dev)
        dma_pool_destroy(dev->prp_small_pool);
 }
-/* XXX: Use an ida or something to let remove / add work correctly */
+static DEFINE_IDA(nvme_instance_ida);
-static void nvme_set_instance(struct nvme_dev *dev)
+static int nvme_set_instance(struct nvme_dev *dev)
 {
-        static int instance;
+        int instance, error;
-        dev->instance = instance++;
+        do {
+                if (!ida_pre_get(&nvme_instance_ida, GFP_KERNEL))
+                        return -ENODEV;
+                spin_lock(&dev_list_lock);
+                error = ida_get_new(&nvme_instance_ida, &instance);
+                spin_unlock(&dev_list_lock);
+        } while (error == -EAGAIN);
+        if (error)
+                return -ENODEV;
+        dev->instance = instance;
+        return 0;
 }
 static void nvme_release_instance(struct nvme_dev *dev)
 {
+        spin_lock(&dev_list_lock);
+        ida_remove(&nvme_instance_ida, dev->instance);
+        spin_unlock(&dev_list_lock);
 }
 static int __devinit nvme_probe(struct pci_dev *pdev,
@@ -1601,7 +1649,10 @@ static int __devinit nvme_probe(struct pci_dev *pdev,
        pci_set_drvdata(pdev, dev);
        dma_set_mask(&pdev->dev, DMA_BIT_MASK(64));
        dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(64));
-        nvme_set_instance(dev);
+        result = nvme_set_instance(dev);
+        if (result)
+                goto disable;
        dev->entry[0].vector = pdev->irq;
        result = nvme_setup_prp_pools(dev);
@@ -1704,15 +1755,17 @@ static struct pci_driver nvme_driver = {
 static int __init nvme_init(void)
 {
-        int result = -EBUSY;
+        int result;
        nvme_thread = kthread_run(nvme_kthread, NULL, "nvme");
        if (IS_ERR(nvme_thread))
                return PTR_ERR(nvme_thread);
-        nvme_major = register_blkdev(nvme_major, "nvme");
+        result = register_blkdev(nvme_major, "nvme");
-        if (nvme_major <= 0)
+        if (result < 0)
                goto kill_kthread;
+        else if (result > 0)
+                nvme_major = result;
        result = pci_register_driver(&nvme_driver);
        if (result)
diff --git a/drivers/block/rbd.c b/drivers/block/rbd.c
index 9917943a3572..54a55f03115d 100644
--- a/drivers/block/rbd.c
+++ b/drivers/block/rbd.c
@@ -246,13 +246,12 @@ static int rbd_open(struct block_device *bdev, fmode_t mode)
 {
        struct rbd_device *rbd_dev = bdev->bd_disk->private_data;
-        rbd_get_dev(rbd_dev);
-        set_device_ro(bdev, rbd_dev->read_only);
        if ((mode & FMODE_WRITE) && rbd_dev->read_only)
                return -EROFS;
+        rbd_get_dev(rbd_dev);
+        set_device_ro(bdev, rbd_dev->read_only);
        return 0;
 }
diff --git a/drivers/edac/i3200_edac.c b/drivers/edac/i3200_edac.c
index 47180a08edad..b6653a6fc5d5 100644
--- a/drivers/edac/i3200_edac.c
+++ b/drivers/edac/i3200_edac.c
@@ -391,7 +391,7 @@ static int i3200_probe1(struct pci_dev *pdev, int dev_idx)
                for (j = 0; j < nr_channels; j++) {
                        struct dimm_info *dimm = csrow->channels[j]->dimm;
-                        dimm->nr_pages = nr_pages / nr_channels;
+                        dimm->nr_pages = nr_pages;
                        dimm->grain = nr_pages << PAGE_SHIFT;
                        dimm->mtype = MEM_DDR2;
                        dimm->dtype = DEV_UNKNOWN;
diff --git a/drivers/edac/i5000_edac.c b/drivers/edac/i5000_edac.c
index 39c63757c2a1..6a49dd00b81b 100644
--- a/drivers/edac/i5000_edac.c
+++ b/drivers/edac/i5000_edac.c
@@ -1012,6 +1012,10 @@ static void handle_channel(struct i5000_pvt *pvt, int slot, int channel,
                        /* add the number of COLUMN bits */
                        addrBits += MTR_DIMM_COLS_ADDR_BITS(mtr);
+                        /* Dual-rank memories have twice the size */
+                        if (dinfo->dual_rank)
+                                addrBits++;
                        addrBits += 6;  /* add 64 bits per DIMM */
                        addrBits -= 20; /* divide by 2^^20 */
                        addrBits -= 3;  /* 8 bits per bytes */
diff --git a/drivers/edac/sb_edac.c b/drivers/edac/sb_edac.c
index f3b1f9fafa4b..5715b7c2c517 100644
--- a/drivers/edac/sb_edac.c
+++ b/drivers/edac/sb_edac.c
@@ -513,7 +513,8 @@ static int get_dimm_config(struct mem_ctl_info *mci)
 {
        struct sbridge_pvt *pvt = mci->pvt_info;
        struct dimm_info *dimm;
-        int i, j, banks, ranks, rows, cols, size, npages;
+        unsigned i, j, banks, ranks, rows, cols, npages;
+        u64 size;
        u32 reg;
        enum edac_type mode;
        enum mem_type mtype;
@@ -585,10 +586,10 @@ static int get_dimm_config(struct mem_ctl_info *mci)
                                cols = numcol(mtr);
                                /* DDR3 has 8 I/O banks */
-                                size = (rows * cols * banks * ranks) >> (20 - 3);
+                                size = ((u64)rows * cols * banks * ranks) >> (20 - 3);
                                npages = MiB_TO_PAGES(size);
-                                edac_dbg(0, "mc#%d: channel %d, dimm %d, %d Mb (%d pages) bank: %d, rank: %d, row: %#x, col: %#x\n",
+                                edac_dbg(0, "mc#%d: channel %d, dimm %d, %Ld Mb (%d pages) bank: %d, rank: %d, row: %#x, col: %#x\n",
                                         pvt->sbridge_dev->mc, i, j,
                                         size, npages,
                                         banks, ranks, rows, cols);
diff --git a/drivers/gpio/gpio-lpc32xx.c b/drivers/gpio/gpio-lpc32xx.c
index 8a420f13905e..ed94b4ea72e9 100644
--- a/drivers/gpio/gpio-lpc32xx.c
+++ b/drivers/gpio/gpio-lpc32xx.c
@@ -308,6 +308,7 @@ static int lpc32xx_gpio_dir_output_p012(struct gpio_chip *chip, unsigned pin,
 {
        struct lpc32xx_gpio_chip *group = to_lpc32xx_gpio(chip);
+        __set_gpio_level_p012(group, pin, value);
        __set_gpio_dir_p012(group, pin, 0);
        return 0;
@@ -318,6 +319,7 @@ static int lpc32xx_gpio_dir_output_p3(struct gpio_chip *chip, unsigned pin,
 {
        struct lpc32xx_gpio_chip *group = to_lpc32xx_gpio(chip);
+        __set_gpio_level_p3(group, pin, value);
        __set_gpio_dir_p3(group, pin, 0);
        return 0;
@@ -326,6 +328,9 @@ static int lpc32xx_gpio_dir_output_p3(struct gpio_chip *chip, unsigned pin,
 static int lpc32xx_gpio_dir_out_always(struct gpio_chip *chip, unsigned pin,
        int value)
 {
+        struct lpc32xx_gpio_chip *group = to_lpc32xx_gpio(chip);
+        __set_gpo_level_p3(group, pin, value);
        return 0;
 }
diff --git a/drivers/gpu/drm/nouveau/nouveau_abi16.c b/drivers/gpu/drm/nouveau/nouveau_abi16.c
index ff23d88880e5..3ca240b4413d 100644
--- a/drivers/gpu/drm/nouveau/nouveau_abi16.c
+++ b/drivers/gpu/drm/nouveau/nouveau_abi16.c
@@ -179,7 +179,7 @@ nouveau_abi16_ioctl_grobj_alloc(ABI16_IOCTL_ARGS)
                        return 0;
        } else
        if (init->class == 0x906e) {
-                NV_ERROR(dev, "906e not supported yet\n");
+                NV_DEBUG(dev, "906e not supported yet\n");
                return -EINVAL;
        }
diff --git a/drivers/gpu/drm/nouveau/nvc0_fb.c b/drivers/gpu/drm/nouveau/nvc0_fb.c
index f704e942372e..f376c39310df 100644
--- a/drivers/gpu/drm/nouveau/nvc0_fb.c
+++ b/drivers/gpu/drm/nouveau/nvc0_fb.c
@@ -124,6 +124,7 @@ nvc0_fb_init(struct drm_device *dev)
        priv = dev_priv->engine.fb.priv;
        nv_wr32(dev, 0x100c10, priv->r100c10 >> 8);
+        nv_mask(dev, 0x17e820, 0x00100000, 0x00000000); /* NV_PLTCG_INTR_EN */
        return 0;
 }
diff --git a/drivers/gpu/drm/nouveau/nvc0_fifo.c b/drivers/gpu/drm/nouveau/nvc0_fifo.c
index 7d85553d518c..cd39eb99f5b1 100644
--- a/drivers/gpu/drm/nouveau/nvc0_fifo.c
+++ b/drivers/gpu/drm/nouveau/nvc0_fifo.c
@@ -373,7 +373,8 @@ nvc0_fifo_isr_subfifo_intr(struct drm_device *dev, int unit)
 static void
 nvc0_fifo_isr(struct drm_device *dev)
 {
-        u32 stat = nv_rd32(dev, 0x002100);
+        u32 mask = nv_rd32(dev, 0x002140);
+        u32 stat = nv_rd32(dev, 0x002100) & mask;
        if (stat & 0x00000100) {
                NV_INFO(dev, "PFIFO: unknown status 0x00000100\n");
diff --git a/drivers/gpu/drm/nouveau/nve0_fifo.c b/drivers/gpu/drm/nouveau/nve0_fifo.c
index e98d144e6eb9..281bece751b6 100644
--- a/drivers/gpu/drm/nouveau/nve0_fifo.c
+++ b/drivers/gpu/drm/nouveau/nve0_fifo.c
@@ -345,7 +345,8 @@ nve0_fifo_isr_subfifo_intr(struct drm_device *dev, int unit)
 static void
 nve0_fifo_isr(struct drm_device *dev)
 {
-        u32 stat = nv_rd32(dev, 0x002100);
+        u32 mask = nv_rd32(dev, 0x002140);
+        u32 stat = nv_rd32(dev, 0x002100) & mask;
        if (stat & 0x00000100) {
                NV_INFO(dev, "PFIFO: unknown status 0x00000100\n");
diff --git a/drivers/gpu/drm/udl/udl_connector.c b/drivers/gpu/drm/udl/udl_connector.c
index ba055e9ca007..8d9dc44f1f94 100644
--- a/drivers/gpu/drm/udl/udl_connector.c
+++ b/drivers/gpu/drm/udl/udl_connector.c
@@ -69,6 +69,13 @@ static int udl_get_modes(struct drm_connector *connector)
 static int udl_mode_valid(struct drm_connector *connector,
                          struct drm_display_mode *mode)
 {
+        struct udl_device *udl = connector->dev->dev_private;
+        if (!udl->sku_pixel_limit)
+                return 0;
+        if (mode->vdisplay * mode->hdisplay > udl->sku_pixel_limit)
+                return MODE_VIRTUAL_Y;
        return 0;
 }
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_fence.c b/drivers/gpu/drm/vmwgfx/vmwgfx_fence.c
index f2fb8f15e2f1..7e0743358dff 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_fence.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_fence.c
@@ -1018,7 +1018,7 @@ int vmw_event_fence_action_create(struct drm_file *file_priv,
        }
-        event = kzalloc(sizeof(event->event), GFP_KERNEL);
+        event = kzalloc(sizeof(*event), GFP_KERNEL);
        if (unlikely(event == NULL)) {
                DRM_ERROR("Failed to allocate an event.\n");
                ret = -ENOMEM;
diff --git a/drivers/i2c/busses/i2c-scmi.c b/drivers/i2c/busses/i2c-scmi.c
index 388cbdc96db7..6aafa3d88ff0 100644
--- a/drivers/i2c/busses/i2c-scmi.c
+++ b/drivers/i2c/busses/i2c-scmi.c
@@ -426,19 +426,7 @@ static struct acpi_driver acpi_smbus_cmi_driver = {
                .remove = acpi_smbus_cmi_remove,
        },
 };
+module_acpi_driver(acpi_smbus_cmi_driver);
-static int __init acpi_smbus_cmi_init(void)
-{
-        return acpi_bus_register_driver(&acpi_smbus_cmi_driver);
-}
-static void __exit acpi_smbus_cmi_exit(void)
-{
-        acpi_bus_unregister_driver(&acpi_smbus_cmi_driver);
-}
-module_init(acpi_smbus_cmi_init);
-module_exit(acpi_smbus_cmi_exit);
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Crane Cai <crane.cai@amd.com>");
diff --git a/drivers/idle/intel_idle.c b/drivers/idle/intel_idle.c
index e8726177d103..b0f6b4c8ee14 100644
--- a/drivers/idle/intel_idle.c
+++ b/drivers/idle/intel_idle.c
@@ -413,6 +413,7 @@ static const struct x86_cpu_id intel_idle_ids[] = {
        ICPU(0x2a, idle_cpu_snb),
        ICPU(0x2d, idle_cpu_snb),
        ICPU(0x3a, idle_cpu_ivb),
+        ICPU(0x3e, idle_cpu_ivb),
        {}
 };
 MODULE_DEVICE_TABLE(x86cpu, intel_idle_ids);
diff --git a/drivers/input/misc/atlas_btns.c b/drivers/input/misc/atlas_btns.c
index 601f7372f9c4..26f13131639a 100644
--- a/drivers/input/misc/atlas_btns.c
+++ b/drivers/input/misc/atlas_btns.c
@@ -151,22 +151,7 @@ static struct acpi_driver atlas_acpi_driver = {
                .remove = atlas_acpi_button_remove,
        },
 };
+module_acpi_driver(atlas_acpi_driver);
-static int __init atlas_acpi_init(void)
-{
-        if (acpi_disabled)
-                return -ENODEV;
-        return acpi_bus_register_driver(&atlas_acpi_driver);
-}
-static void __exit atlas_acpi_exit(void)
-{
-        acpi_bus_unregister_driver(&atlas_acpi_driver);
-}
-module_init(atlas_acpi_init);
-module_exit(atlas_acpi_exit);
 MODULE_AUTHOR("Jaya Kumar");
 MODULE_LICENSE("GPL");
diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c
index b64502dfa9f4..e89daf1b21b4 100644
--- a/drivers/iommu/amd_iommu.c
+++ b/drivers/iommu/amd_iommu.c
@@ -266,7 +266,7 @@ static void swap_pci_ref(struct pci_dev **from, struct pci_dev *to)
 static int iommu_init_device(struct device *dev)
 {
-        struct pci_dev *dma_pdev, *pdev = to_pci_dev(dev);
+        struct pci_dev *dma_pdev = NULL, *pdev = to_pci_dev(dev);
        struct iommu_dev_data *dev_data;
        struct iommu_group *group;
        u16 alias;
@@ -293,7 +293,9 @@ static int iommu_init_device(struct device *dev)
                dev_data->alias_data = alias_data;
                dma_pdev = pci_get_bus_and_slot(alias >> 8, alias & 0xff);
-        } else
+        }
+        if (dma_pdev == NULL)
                dma_pdev = pci_dev_get(pdev);
        /* Account for quirked devices */
diff --git a/drivers/md/dm-mpath.c b/drivers/md/dm-mpath.c
index d8abb90a6c2f..034233eefc82 100644
--- a/drivers/md/dm-mpath.c
+++ b/drivers/md/dm-mpath.c
@@ -1555,6 +1555,7 @@ static int multipath_ioctl(struct dm_target *ti, unsigned int cmd,
                           unsigned long arg)
 {
        struct multipath *m = ti->private;
+        struct pgpath *pgpath;
        struct block_device *bdev;
        fmode_t mode;
        unsigned long flags;
@@ -1570,12 +1571,14 @@ again:
        if (!m->current_pgpath)
                __choose_pgpath(m, 0);
-        if (m->current_pgpath) {
+        pgpath = m->current_pgpath;
-                bdev = m->current_pgpath->path.dev->bdev;
-                mode = m->current_pgpath->path.dev->mode;
+        if (pgpath) {
+                bdev = pgpath->path.dev->bdev;
+                mode = pgpath->path.dev->mode;
        }
-        if (m->queue_io)
+        if ((pgpath && m->queue_io) || (!pgpath && m->queue_if_no_path))
                r = -EAGAIN;
        else if (!bdev)
                r = -EIO;
diff --git a/drivers/md/dm-table.c b/drivers/md/dm-table.c
index f90069029aae..100368eb7991 100644
--- a/drivers/md/dm-table.c
+++ b/drivers/md/dm-table.c
@@ -1212,6 +1212,41 @@ struct dm_target *dm_table_find_target(struct dm_table *t, sector_t sector)
        return &t->targets[(KEYS_PER_NODE * n) + k];
 }
+static int count_device(struct dm_target *ti, struct dm_dev *dev,
+                        sector_t start, sector_t len, void *data)
+{
+        unsigned *num_devices = data;
+        (*num_devices)++;
+        return 0;
+}
+/*
+ * Check whether a table has no data devices attached using each
+ * target's iterate_devices method.
+ * Returns false if the result is unknown because a target doesn't
+ * support iterate_devices.
+ */
+bool dm_table_has_no_data_devices(struct dm_table *table)
+{
+        struct dm_target *uninitialized_var(ti);
+        unsigned i = 0, num_devices = 0;
+        while (i < dm_table_get_num_targets(table)) {
+                ti = dm_table_get_target(table, i++);
+                if (!ti->type->iterate_devices)
+                        return false;
+                ti->type->iterate_devices(ti, count_device, &num_devices);
+                if (num_devices)
+                        return false;
+        }
+        return true;
+}
 /*
 * Establish the new table's queue_limits and validate them.
 */
@@ -1354,17 +1389,25 @@ static int device_is_nonrot(struct dm_target *ti, struct dm_dev *dev,
        return q && blk_queue_nonrot(q);
 }
-static bool dm_table_is_nonrot(struct dm_table *t)
+static int device_is_not_random(struct dm_target *ti, struct dm_dev *dev,
+                             sector_t start, sector_t len, void *data)
+{
+        struct request_queue *q = bdev_get_queue(dev->bdev);
+        return q && !blk_queue_add_random(q);
+}
+static bool dm_table_all_devices_attribute(struct dm_table *t,
+                                           iterate_devices_callout_fn func)
 {
        struct dm_target *ti;
        unsigned i = 0;
-        /* Ensure that all underlying device are non-rotational. */
        while (i < dm_table_get_num_targets(t)) {
                ti = dm_table_get_target(t, i++);
                if (!ti->type->iterate_devices ||
-                    !ti->type->iterate_devices(ti, device_is_nonrot, NULL))
+                    !ti->type->iterate_devices(ti, func, NULL))
                        return 0;
        }
@@ -1396,7 +1439,8 @@ void dm_table_set_restrictions(struct dm_table *t, struct request_queue *q,
        if (!dm_table_discard_zeroes_data(t))
                q->limits.discard_zeroes_data = 0;
-        if (dm_table_is_nonrot(t))
+        /* Ensure that all underlying devices are non-rotational. */
+        if (dm_table_all_devices_attribute(t, device_is_nonrot))
                queue_flag_set_unlocked(QUEUE_FLAG_NONROT, q);
        else
                queue_flag_clear_unlocked(QUEUE_FLAG_NONROT, q);
@@ -1404,6 +1448,15 @@ void dm_table_set_restrictions(struct dm_table *t, struct request_queue *q,
        dm_table_set_integrity(t);
        /*
+         * Determine whether or not this queue's I/O timings contribute
+         * to the entropy pool, Only request-based targets use this.
+         * Clear QUEUE_FLAG_ADD_RANDOM if any underlying device does not
+         * have it set.
+         */
+        if (blk_queue_add_random(q) && dm_table_all_devices_attribute(t, device_is_not_random))
+                queue_flag_clear_unlocked(QUEUE_FLAG_ADD_RANDOM, q);
+        /*
         * QUEUE_FLAG_STACKABLE must be set after all queue settings are
         * visible to other CPUs because, once the flag is set, incoming bios
         * are processed by request-based dm, which refers to the queue
diff --git a/drivers/md/dm-thin.c b/drivers/md/dm-thin.c
index af1fc3b2c2ad..c29410af1e22 100644
--- a/drivers/md/dm-thin.c
+++ b/drivers/md/dm-thin.c
@@ -509,9 +509,9 @@ enum pool_mode {
 struct pool_features {
        enum pool_mode mode;
-        unsigned zero_new_blocks:1;
+        bool zero_new_blocks:1;
-        unsigned discard_enabled:1;
+        bool discard_enabled:1;
-        unsigned discard_passdown:1;
+        bool discard_passdown:1;
 };
 struct thin_c;
@@ -580,7 +580,8 @@ struct pool_c {
        struct dm_target_callbacks callbacks;
        dm_block_t low_water_blocks;
-        struct pool_features pf;
+        struct pool_features requested_pf; /* Features requested during table load */
+        struct pool_features adjusted_pf;  /* Features used after adjusting for constituent devices */
 };
 /*
@@ -1839,6 +1840,47 @@ static void __requeue_bios(struct pool *pool)
 /*----------------------------------------------------------------
 * Binding of control targets to a pool object
 *--------------------------------------------------------------*/
+static bool data_dev_supports_discard(struct pool_c *pt)
+{
+        struct request_queue *q = bdev_get_queue(pt->data_dev->bdev);
+        return q && blk_queue_discard(q);
+}
+/*
+ * If discard_passdown was enabled verify that the data device
+ * supports discards.  Disable discard_passdown if not.
+ */
+static void disable_passdown_if_not_supported(struct pool_c *pt)
+{
+        struct pool *pool = pt->pool;
+        struct block_device *data_bdev = pt->data_dev->bdev;
+        struct queue_limits *data_limits = &bdev_get_queue(data_bdev)->limits;
+        sector_t block_size = pool->sectors_per_block << SECTOR_SHIFT;
+        const char *reason = NULL;
+        char buf[BDEVNAME_SIZE];
+        if (!pt->adjusted_pf.discard_passdown)
+                return;
+        if (!data_dev_supports_discard(pt))
+                reason = "discard unsupported";
+        else if (data_limits->max_discard_sectors < pool->sectors_per_block)
+                reason = "max discard sectors smaller than a block";
+        else if (data_limits->discard_granularity > block_size)
+                reason = "discard granularity larger than a block";
+        else if (block_size & (data_limits->discard_granularity - 1))
+                reason = "discard granularity not a factor of block size";
+        if (reason) {
+                DMWARN("Data device (%s) %s: Disabling discard passdown.", bdevname(data_bdev, buf), reason);
+                pt->adjusted_pf.discard_passdown = false;
+        }
+}
 static int bind_control_target(struct pool *pool, struct dm_target *ti)
 {
        struct pool_c *pt = ti->private;
@@ -1847,31 +1889,16 @@ static int bind_control_target(struct pool *pool, struct dm_target *ti)
         * We want to make sure that degraded pools are never upgraded.
         */
        enum pool_mode old_mode = pool->pf.mode;
-        enum pool_mode new_mode = pt->pf.mode;
+        enum pool_mode new_mode = pt->adjusted_pf.mode;
        if (old_mode > new_mode)
                new_mode = old_mode;
        pool->ti = ti;
        pool->low_water_blocks = pt->low_water_blocks;
-        pool->pf = pt->pf;
+        pool->pf = pt->adjusted_pf;
-        set_pool_mode(pool, new_mode);
-        /*
+        set_pool_mode(pool, new_mode);
-         * If discard_passdown was enabled verify that the data device
-         * supports discards.  Disable discard_passdown if not; otherwise
-         * -EOPNOTSUPP will be returned.
-         */
-        /* FIXME: pull this out into a sep fn. */
-        if (pt->pf.discard_passdown) {
-                struct request_queue *q = bdev_get_queue(pt->data_dev->bdev);
-                if (!q || !blk_queue_discard(q)) {
-                        char buf[BDEVNAME_SIZE];
-                        DMWARN("Discard unsupported by data device (%s): Disabling discard passdown.",
-                               bdevname(pt->data_dev->bdev, buf));
-                        pool->pf.discard_passdown = 0;
-                }
-        }
        return 0;
 }
@@ -1889,9 +1916,9 @@ static void unbind_control_target(struct pool *pool, struct dm_target *ti)
 static void pool_features_init(struct pool_features *pf)
 {
        pf->mode = PM_WRITE;
-        pf->zero_new_blocks = 1;
+        pf->zero_new_blocks = true;
-        pf->discard_enabled = 1;
+        pf->discard_enabled = true;
-        pf->discard_passdown = 1;
+        pf->discard_passdown = true;
 }
 static void __pool_destroy(struct pool *pool)
@@ -2119,13 +2146,13 @@ static int parse_pool_features(struct dm_arg_set *as, struct pool_features *pf,
                argc--;
                if (!strcasecmp(arg_name, "skip_block_zeroing"))
-                        pf->zero_new_blocks = 0;
+                        pf->zero_new_blocks = false;
                else if (!strcasecmp(arg_name, "ignore_discard"))
-                        pf->discard_enabled = 0;
+                        pf->discard_enabled = false;
                else if (!strcasecmp(arg_name, "no_discard_passdown"))
-                        pf->discard_passdown = 0;
+                        pf->discard_passdown = false;
                else if (!strcasecmp(arg_name, "read_only"))
                        pf->mode = PM_READ_ONLY;
@@ -2259,8 +2286,9 @@ static int pool_ctr(struct dm_target *ti, unsigned argc, char **argv)
        pt->metadata_dev = metadata_dev;
        pt->data_dev = data_dev;
        pt->low_water_blocks = low_water_blocks;
-        pt->pf = pf;
+        pt->adjusted_pf = pt->requested_pf = pf;
        ti->num_flush_requests = 1;
        /*
         * Only need to enable discards if the pool should pass
         * them down to the data device.  The thin device's discard
@@ -2268,12 +2296,14 @@ static int pool_ctr(struct dm_target *ti, unsigned argc, char **argv)
         */
        if (pf.discard_enabled && pf.discard_passdown) {
                ti->num_discard_requests = 1;
                /*
                 * Setting 'discards_supported' circumvents the normal
                 * stacking of discard limits (this keeps the pool and
                 * thin devices' discard limits consistent).
                 */
                ti->discards_supported = true;
+                ti->discard_zeroes_data_unsupported = true;
        }
        ti->private = pt;
@@ -2703,7 +2733,7 @@ static int pool_status(struct dm_target *ti, status_type_t type,
                       format_dev_t(buf2, pt->data_dev->bdev->bd_dev),
                       (unsigned long)pool->sectors_per_block,
                       (unsigned long long)pt->low_water_blocks);
-                emit_flags(&pt->pf, result, sz, maxlen);
+                emit_flags(&pt->requested_pf, result, sz, maxlen);
                break;
        }
@@ -2732,20 +2762,21 @@ static int pool_merge(struct dm_target *ti, struct bvec_merge_data *bvm,
        return min(max_size, q->merge_bvec_fn(q, bvm, biovec));
 }
-static void set_discard_limits(struct pool *pool, struct queue_limits *limits)
+static void set_discard_limits(struct pool_c *pt, struct queue_limits *limits)
 {
-        /*
+        struct pool *pool = pt->pool;
-         * FIXME: these limits may be incompatible with the pool's data device
+        struct queue_limits *data_limits;
-         */
        limits->max_discard_sectors = pool->sectors_per_block;
        /*
-         * This is just a hint, and not enforced.  We have to cope with
+         * discard_granularity is just a hint, and not enforced.
-         * bios that cover a block partially.  A discard that spans a block
-         * boundary is not sent to this target.
         */
-        limits->discard_granularity = pool->sectors_per_block << SECTOR_SHIFT;
+        if (pt->adjusted_pf.discard_passdown) {
-        limits->discard_zeroes_data = pool->pf.zero_new_blocks;
+                data_limits = &bdev_get_queue(pt->data_dev->bdev)->limits;
+                limits->discard_granularity = data_limits->discard_granularity;
+        } else
+                limits->discard_granularity = pool->sectors_per_block << SECTOR_SHIFT;
 }
 static void pool_io_hints(struct dm_target *ti, struct queue_limits *limits)
@@ -2755,15 +2786,25 @@ static void pool_io_hints(struct dm_target *ti, struct queue_limits *limits)
        blk_limits_io_min(limits, 0);
        blk_limits_io_opt(limits, pool->sectors_per_block << SECTOR_SHIFT);
-        if (pool->pf.discard_enabled)
-                set_discard_limits(pool, limits);
+        /*
+         * pt->adjusted_pf is a staging area for the actual features to use.
+         * They get transferred to the live pool in bind_control_target()
+         * called from pool_preresume().
+         */
+        if (!pt->adjusted_pf.discard_enabled)
+                return;
+        disable_passdown_if_not_supported(pt);
+        set_discard_limits(pt, limits);
 }
 static struct target_type pool_target = {
        .name = "thin-pool",
        .features = DM_TARGET_SINGLETON | DM_TARGET_ALWAYS_WRITEABLE |
                    DM_TARGET_IMMUTABLE,
-        .version = {1, 3, 0},
+        .version = {1, 4, 0},
        .module = THIS_MODULE,
        .ctr = pool_ctr,
        .dtr = pool_dtr,
@@ -3042,19 +3083,19 @@ static int thin_iterate_devices(struct dm_target *ti,
        return 0;
 }
+/*
+ * A thin device always inherits its queue limits from its pool.
+ */
 static void thin_io_hints(struct dm_target *ti, struct queue_limits *limits)
 {
        struct thin_c *tc = ti->private;
-        struct pool *pool = tc->pool;
-        blk_limits_io_min(limits, 0);
+        *limits = bdev_get_queue(tc->pool_dev->bdev)->limits;
-        blk_limits_io_opt(limits, pool->sectors_per_block << SECTOR_SHIFT);
-        set_discard_limits(pool, limits);
 }
 static struct target_type thin_target = {
        .name = "thin",
-        .version = {1, 3, 0},
+        .version = {1, 4, 0},
        .module = THIS_MODULE,
        .ctr = thin_ctr,
        .dtr = thin_dtr,
diff --git a/drivers/md/dm-verity.c b/drivers/md/dm-verity.c
index 254d19268ad2..892ae2766aa6 100644
--- a/drivers/md/dm-verity.c
+++ b/drivers/md/dm-verity.c
@@ -718,8 +718,8 @@ static int verity_ctr(struct dm_target *ti, unsigned argc, char **argv)
        v->hash_dev_block_bits = ffs(num) - 1;
        if (sscanf(argv[5], "%llu%c", &num_ll, &dummy) != 1 ||
-            num_ll << (v->data_dev_block_bits - SECTOR_SHIFT) !=
+            (sector_t)(num_ll << (v->data_dev_block_bits - SECTOR_SHIFT))
-            (sector_t)num_ll << (v->data_dev_block_bits - SECTOR_SHIFT)) {
+            >> (v->data_dev_block_bits - SECTOR_SHIFT) != num_ll) {
                ti->error = "Invalid data blocks";
                r = -EINVAL;
                goto bad;
@@ -733,8 +733,8 @@ static int verity_ctr(struct dm_target *ti, unsigned argc, char **argv)
        }
        if (sscanf(argv[6], "%llu%c", &num_ll, &dummy) != 1 ||
-            num_ll << (v->hash_dev_block_bits - SECTOR_SHIFT) !=
+            (sector_t)(num_ll << (v->hash_dev_block_bits - SECTOR_SHIFT))
-            (sector_t)num_ll << (v->hash_dev_block_bits - SECTOR_SHIFT)) {
+            >> (v->hash_dev_block_bits - SECTOR_SHIFT) != num_ll) {
                ti->error = "Invalid hash start";
                r = -EINVAL;
                goto bad;
diff --git a/drivers/md/dm.c b/drivers/md/dm.c
index 4e09b6ff5b49..67ffa391edcf 100644
--- a/drivers/md/dm.c
+++ b/drivers/md/dm.c
@@ -865,10 +865,14 @@ static void dm_done(struct request *clone, int error, bool mapped)
 {
        int r = error;
        struct dm_rq_target_io *tio = clone->end_io_data;
-        dm_request_endio_fn rq_end_io = tio->ti->type->rq_end_io;
+        dm_request_endio_fn rq_end_io = NULL;
-        if (mapped && rq_end_io)
+        if (tio->ti) {
-                r = rq_end_io(tio->ti, clone, error, &tio->info);
+                rq_end_io = tio->ti->type->rq_end_io;
+                if (mapped && rq_end_io)
+                        r = rq_end_io(tio->ti, clone, error, &tio->info);
+        }
        if (r <= 0)
                /* The target wants to complete the I/O */
@@ -1588,15 +1592,6 @@ static int map_request(struct dm_target *ti, struct request *clone,
        int r, requeued = 0;
        struct dm_rq_target_io *tio = clone->end_io_data;
-        /*
-         * Hold the md reference here for the in-flight I/O.
-         * We can't rely on the reference count by device opener,
-         * because the device may be closed during the request completion
-         * when all bios are completed.
-         * See the comment in rq_completed() too.
-         */
-        dm_get(md);
        tio->ti = ti;
        r = ti->type->map_rq(ti, clone, &tio->info);
        switch (r) {
@@ -1628,6 +1623,26 @@ static int map_request(struct dm_target *ti, struct request *clone,
        return requeued;
 }
+static struct request *dm_start_request(struct mapped_device *md, struct request *orig)
+{
+        struct request *clone;
+        blk_start_request(orig);
+        clone = orig->special;
+        atomic_inc(&md->pending[rq_data_dir(clone)]);
+        /*
+         * Hold the md reference here for the in-flight I/O.
+         * We can't rely on the reference count by device opener,
+         * because the device may be closed during the request completion
+         * when all bios are completed.
+         * See the comment in rq_completed() too.
+         */
+        dm_get(md);
+        return clone;
+}
 /*
 * q->request_fn for request-based dm.
 * Called with the queue lock held.
@@ -1657,14 +1672,21 @@ static void dm_request_fn(struct request_queue *q)
                        pos = blk_rq_pos(rq);
                ti = dm_table_find_target(map, pos);
-                BUG_ON(!dm_target_is_valid(ti));
+                if (!dm_target_is_valid(ti)) {
+                        /*
+                         * Must perform setup, that dm_done() requires,
+                         * before calling dm_kill_unmapped_request
+                         */
+                        DMERR_LIMIT("request attempted access beyond the end of device");
+                        clone = dm_start_request(md, rq);
+                        dm_kill_unmapped_request(clone, -EIO);
+                        continue;
+                }
                if (ti->type->busy && ti->type->busy(ti))
                        goto delay_and_out;
-                blk_start_request(rq);
+                clone = dm_start_request(md, rq);
-                clone = rq->special;
-                atomic_inc(&md->pending[rq_data_dir(clone)]);
                spin_unlock(q->queue_lock);
                if (map_request(ti, clone, md))
@@ -1684,8 +1706,6 @@ delay_and_out:
        blk_delay_queue(q, HZ / 10);
 out:
        dm_table_put(map);
-        return;
 }
 int dm_underlying_device_busy(struct request_queue *q)
@@ -2409,7 +2429,7 @@ static void dm_queue_flush(struct mapped_device *md)
 */
 struct dm_table *dm_swap_table(struct mapped_device *md, struct dm_table *table)
 {
-        struct dm_table *map = ERR_PTR(-EINVAL);
+        struct dm_table *live_map, *map = ERR_PTR(-EINVAL);
        struct queue_limits limits;
        int r;
@@ -2419,6 +2439,19 @@ struct dm_table *dm_swap_table(struct mapped_device *md, struct dm_table *table)
        if (!dm_suspended_md(md))
                goto out;
+        /*
+         * If the new table has no data devices, retain the existing limits.
+         * This helps multipath with queue_if_no_path if all paths disappear,
+         * then new I/O is queued based on these limits, and then some paths
+         * reappear.
+         */
+        if (dm_table_has_no_data_devices(table)) {
+                live_map = dm_get_live_table(md);
+                if (live_map)
+                        limits = md->queue->limits;
+                dm_table_put(live_map);
+        }
        r = dm_calculate_queue_limits(table, &limits);
        if (r) {
                map = ERR_PTR(r);
diff --git a/drivers/md/dm.h b/drivers/md/dm.h
index 52eef493d266..6a99fefaa743 100644
--- a/drivers/md/dm.h
+++ b/drivers/md/dm.h
@@ -54,6 +54,7 @@ void dm_table_event_callback(struct dm_table *t,
                             void (*fn)(void *), void *context);
 struct dm_target *dm_table_get_target(struct dm_table *t, unsigned int index);
 struct dm_target *dm_table_find_target(struct dm_table *t, sector_t sector);
+bool dm_table_has_no_data_devices(struct dm_table *table);
 int dm_calculate_queue_limits(struct dm_table *table,
                              struct queue_limits *limits);
 void dm_table_set_restrictions(struct dm_table *t, struct request_queue *q,
diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c
index 1c2eb38f3c51..0138a727c1f3 100644
--- a/drivers/md/raid10.c
+++ b/drivers/md/raid10.c
@@ -1512,14 +1512,16 @@ static int _enough(struct r10conf *conf, struct geom *geo, int ignore)
        do {
                int n = conf->copies;
                int cnt = 0;
+                int this = first;
                while (n--) {
-                        if (conf->mirrors[first].rdev &&
+                        if (conf->mirrors[this].rdev &&
-                            first != ignore)
+                            this != ignore)
                                cnt++;
-                        first = (first+1) % geo->raid_disks;
+                        this = (this+1) % geo->raid_disks;
                }
                if (cnt == 0)
                        return 0;
+                first = (first + geo->near_copies) % geo->raid_disks;
        } while (first != 0);
        return 1;
 }
diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c
index 7031b865b3a0..0689173fd9f5 100644
--- a/drivers/md/raid5.c
+++ b/drivers/md/raid5.c
@@ -1591,6 +1591,7 @@ static int resize_stripes(struct r5conf *conf, int newsize)
                #ifdef CONFIG_MULTICORE_RAID456
                init_waitqueue_head(&nsh->ops.wait_for_ops);
                #endif
+                spin_lock_init(&nsh->stripe_lock);
                list_add(&nsh->lru, &newstripes);
        }
diff --git a/drivers/mtd/mtdchar.c b/drivers/mtd/mtdchar.c
index f2f482bec573..a6e74514e662 100644
--- a/drivers/mtd/mtdchar.c
+++ b/drivers/mtd/mtdchar.c
@@ -1123,6 +1123,33 @@ static unsigned long mtdchar_get_unmapped_area(struct file *file,
 }
 #endif
+static inline unsigned long get_vm_size(struct vm_area_struct *vma)
+{
+        return vma->vm_end - vma->vm_start;
+}
+static inline resource_size_t get_vm_offset(struct vm_area_struct *vma)
+{
+        return (resource_size_t) vma->vm_pgoff << PAGE_SHIFT;
+}
+/*
+ * Set a new vm offset.
+ *
+ * Verify that the incoming offset really works as a page offset,
+ * and that the offset and size fit in a resource_size_t.
+ */
+static inline int set_vm_offset(struct vm_area_struct *vma, resource_size_t off)
+{
+        pgoff_t pgoff = off >> PAGE_SHIFT;
+        if (off != (resource_size_t) pgoff << PAGE_SHIFT)
+                return -EINVAL;
+        if (off + get_vm_size(vma) - 1 < off)
+                return -EINVAL;
+        vma->vm_pgoff = pgoff;
+        return 0;
+}
 /*
 * set up a mapping for shared memory segments
 */
@@ -1132,20 +1159,29 @@ static int mtdchar_mmap(struct file *file, struct vm_area_struct *vma)
        struct mtd_file_info *mfi = file->private_data;
        struct mtd_info *mtd = mfi->mtd;
        struct map_info *map = mtd->priv;
-        unsigned long start;
+        resource_size_t start, off;
-        unsigned long off;
+        unsigned long len, vma_len;
-        u32 len;
        if (mtd->type == MTD_RAM || mtd->type == MTD_ROM) {
-                off = vma->vm_pgoff << PAGE_SHIFT;
+                off = get_vm_offset(vma);
                start = map->phys;
                len = PAGE_ALIGN((start & ~PAGE_MASK) + map->size);
                start &= PAGE_MASK;
-                if ((vma->vm_end - vma->vm_start + off) > len)
+                vma_len = get_vm_size(vma);
+                /* Overflow in off+len? */
+                if (vma_len + off < off)
+                        return -EINVAL;
+                /* Does it fit in the mapping? */
+                if (vma_len + off > len)
                        return -EINVAL;
                off += start;
-                vma->vm_pgoff = off >> PAGE_SHIFT;
+                /* Did that overflow? */
+                if (off < start)
+                        return -EINVAL;
+                if (set_vm_offset(vma, off) < 0)
+                        return -EINVAL;
                vma->vm_flags |= VM_IO | VM_RESERVED;
 #ifdef pgprot_noncached
diff --git a/drivers/net/ethernet/broadcom/bnx2.c b/drivers/net/ethernet/broadcom/bnx2.c
index 79cebd8525ce..e48312f2305d 100644
--- a/drivers/net/ethernet/broadcom/bnx2.c
+++ b/drivers/net/ethernet/broadcom/bnx2.c
@@ -8564,7 +8564,7 @@ bnx2_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
        return 0;
 error:
-        iounmap(bp->regview);
+        pci_iounmap(pdev, bp->regview);
        pci_release_regions(pdev);
        pci_disable_device(pdev);
        pci_set_drvdata(pdev, NULL);
diff --git a/drivers/net/ethernet/octeon/octeon_mgmt.c b/drivers/net/ethernet/octeon/octeon_mgmt.c
index c42bbb16cdae..a688a2ddcfd6 100644
--- a/drivers/net/ethernet/octeon/octeon_mgmt.c
+++ b/drivers/net/ethernet/octeon/octeon_mgmt.c
@@ -722,10 +722,8 @@ static int octeon_mgmt_init_phy(struct net_device *netdev)
                                   octeon_mgmt_adjust_link, 0,
                                   PHY_INTERFACE_MODE_MII);
-        if (IS_ERR(p->phydev)) {
+        if (!p->phydev)
-                p->phydev = NULL;
                return -1;
-        }
        phy_start_aneg(p->phydev);
diff --git a/drivers/net/ethernet/pasemi/pasemi_mac.c b/drivers/net/ethernet/pasemi/pasemi_mac.c
index e559dfa06d6a..6fa74d530e44 100644
--- a/drivers/net/ethernet/pasemi/pasemi_mac.c
+++ b/drivers/net/ethernet/pasemi/pasemi_mac.c
@@ -1101,9 +1101,9 @@ static int pasemi_mac_phy_init(struct net_device *dev)
        phydev = of_phy_connect(dev, phy_dn, &pasemi_adjust_link, 0,
                                PHY_INTERFACE_MODE_SGMII);
-        if (IS_ERR(phydev)) {
+        if (!phydev) {
                printk(KERN_ERR "%s: Could not attach to phy\n", dev->name);
-                return PTR_ERR(phydev);
+                return -ENODEV;
        }
        mac->phydev = phydev;
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_ctx.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_ctx.c
index b8ead696141e..2a179d087207 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_ctx.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_ctx.c
@@ -15,7 +15,7 @@ qlcnic_poll_rsp(struct qlcnic_adapter *adapter)
        do {
                /* give atleast 1ms for firmware to respond */
-                msleep(1);
+                mdelay(1);
                if (++timeout > QLCNIC_OS_CRB_RETRY_COUNT)
                        return QLCNIC_CDRP_RSP_TIMEOUT;
@@ -601,7 +601,7 @@ void qlcnic_fw_destroy_ctx(struct qlcnic_adapter *adapter)
                qlcnic_fw_cmd_destroy_tx_ctx(adapter);
                /* Allow dma queues to drain after context reset */
-                msleep(20);
+                mdelay(20);
        }
 }
diff --git a/drivers/net/phy/bcm87xx.c b/drivers/net/phy/bcm87xx.c
index 2346b38b9837..799789518e87 100644
--- a/drivers/net/phy/bcm87xx.c
+++ b/drivers/net/phy/bcm87xx.c
@@ -229,3 +229,5 @@ static void __exit bcm87xx_exit(void)
                ARRAY_SIZE(bcm87xx_driver));
 }
 module_exit(bcm87xx_exit);
+MODULE_LICENSE("GPL");
diff --git a/drivers/net/phy/micrel.c b/drivers/net/phy/micrel.c
index cf287e0eb408..2165d5fdb8c0 100644
--- a/drivers/net/phy/micrel.c
+++ b/drivers/net/phy/micrel.c
@@ -21,6 +21,12 @@
 #include <linux/phy.h>
 #include <linux/micrel_phy.h>
+/* Operation Mode Strap Override */
+#define MII_KSZPHY_OMSO                         0x16
+#define KSZPHY_OMSO_B_CAST_OFF                  (1 << 9)
+#define KSZPHY_OMSO_RMII_OVERRIDE               (1 << 1)
+#define KSZPHY_OMSO_MII_OVERRIDE                (1 << 0)
 /* general Interrupt control/status reg in vendor specific block. */
 #define MII_KSZPHY_INTCS                        0x1B
 #define KSZPHY_INTCS_JABBER                     (1 << 15)
@@ -101,6 +107,13 @@ static int kszphy_config_init(struct phy_device *phydev)
        return 0;
 }
+static int ksz8021_config_init(struct phy_device *phydev)
+{
+        const u16 val = KSZPHY_OMSO_B_CAST_OFF | KSZPHY_OMSO_RMII_OVERRIDE;
+        phy_write(phydev, MII_KSZPHY_OMSO, val);
+        return 0;
+}
 static int ks8051_config_init(struct phy_device *phydev)
 {
        int regval;
@@ -128,9 +141,22 @@ static struct phy_driver ksphy_driver[] = {
        .config_intr    = ks8737_config_intr,
        .driver         = { .owner = THIS_MODULE,},
 }, {
-        .phy_id         = PHY_ID_KS8041,
+        .phy_id         = PHY_ID_KSZ8021,
+        .phy_id_mask    = 0x00ffffff,
+        .name           = "Micrel KSZ8021",
+        .features       = (PHY_BASIC_FEATURES | SUPPORTED_Pause |
+                           SUPPORTED_Asym_Pause),
+        .flags          = PHY_HAS_MAGICANEG | PHY_HAS_INTERRUPT,
+        .config_init    = ksz8021_config_init,
+        .config_aneg    = genphy_config_aneg,
+        .read_status    = genphy_read_status,
+        .ack_interrupt  = kszphy_ack_interrupt,
+        .config_intr    = kszphy_config_intr,
+        .driver         = { .owner = THIS_MODULE,},
+}, {
+        .phy_id         = PHY_ID_KSZ8041,
        .phy_id_mask    = 0x00fffff0,
-        .name           = "Micrel KS8041",
+        .name           = "Micrel KSZ8041",
        .features       = (PHY_BASIC_FEATURES | SUPPORTED_Pause
                                | SUPPORTED_Asym_Pause),
        .flags          = PHY_HAS_MAGICANEG | PHY_HAS_INTERRUPT,
@@ -141,9 +167,9 @@ static struct phy_driver ksphy_driver[] = {
        .config_intr    = kszphy_config_intr,
        .driver         = { .owner = THIS_MODULE,},
 }, {
-        .phy_id         = PHY_ID_KS8051,
+        .phy_id         = PHY_ID_KSZ8051,
        .phy_id_mask    = 0x00fffff0,
-        .name           = "Micrel KS8051",
+        .name           = "Micrel KSZ8051",
        .features       = (PHY_BASIC_FEATURES | SUPPORTED_Pause
                                | SUPPORTED_Asym_Pause),
        .flags          = PHY_HAS_MAGICANEG | PHY_HAS_INTERRUPT,
@@ -154,8 +180,8 @@ static struct phy_driver ksphy_driver[] = {
        .config_intr    = kszphy_config_intr,
        .driver         = { .owner = THIS_MODULE,},
 }, {
-        .phy_id         = PHY_ID_KS8001,
+        .phy_id         = PHY_ID_KSZ8001,
-        .name           = "Micrel KS8001 or KS8721",
+        .name           = "Micrel KSZ8001 or KS8721",
        .phy_id_mask    = 0x00ffffff,
        .features       = (PHY_BASIC_FEATURES | SUPPORTED_Pause),
        .flags          = PHY_HAS_MAGICANEG | PHY_HAS_INTERRUPT,
@@ -201,10 +227,11 @@ MODULE_LICENSE("GPL");
 static struct mdio_device_id __maybe_unused micrel_tbl[] = {
        { PHY_ID_KSZ9021, 0x000ffffe },
-        { PHY_ID_KS8001, 0x00ffffff },
+        { PHY_ID_KSZ8001, 0x00ffffff },
        { PHY_ID_KS8737, 0x00fffff0 },
-        { PHY_ID_KS8041, 0x00fffff0 },
+        { PHY_ID_KSZ8021, 0x00ffffff },
-        { PHY_ID_KS8051, 0x00fffff0 },
+        { PHY_ID_KSZ8041, 0x00fffff0 },
+        { PHY_ID_KSZ8051, 0x00fffff0 },
        { }
 };
diff --git a/drivers/net/phy/smsc.c b/drivers/net/phy/smsc.c
index 6d6192316b30..88e3991464e7 100644
--- a/drivers/net/phy/smsc.c
+++ b/drivers/net/phy/smsc.c
@@ -56,6 +56,32 @@ static int smsc_phy_config_init(struct phy_device *phydev)
        return smsc_phy_ack_interrupt (phydev);
 }
+static int lan87xx_config_init(struct phy_device *phydev)
+{
+        /*
+         * Make sure the EDPWRDOWN bit is NOT set. Setting this bit on
+         * LAN8710/LAN8720 PHY causes the PHY to misbehave, likely due
+         * to a bug on the chip.
+         *
+         * When the system is powered on with the network cable being
+         * disconnected all the way until after ifconfig ethX up is
+         * issued for the LAN port with this PHY, connecting the cable
+         * afterwards does not cause LINK change detection, while the
+         * expected behavior is the Link UP being detected.
+         */
+        int rc = phy_read(phydev, MII_LAN83C185_CTRL_STATUS);
+        if (rc < 0)
+                return rc;
+        rc &= ~MII_LAN83C185_EDPWRDOWN;
+        rc = phy_write(phydev, MII_LAN83C185_CTRL_STATUS, rc);
+        if (rc < 0)
+                return rc;
+        return smsc_phy_ack_interrupt(phydev);
+}
 static int lan911x_config_init(struct phy_device *phydev)
 {
        return smsc_phy_ack_interrupt(phydev);
@@ -162,7 +188,7 @@ static struct phy_driver smsc_phy_driver[] = {
        /* basic functions */
        .config_aneg    = genphy_config_aneg,
        .read_status    = genphy_read_status,
-        .config_init    = smsc_phy_config_init,
+        .config_init    = lan87xx_config_init,
        /* IRQ related */
        .ack_interrupt  = smsc_phy_ack_interrupt,
diff --git a/drivers/net/ppp/pppoe.c b/drivers/net/ppp/pppoe.c
index cbf7047decc0..20f31d0d1536 100644
--- a/drivers/net/ppp/pppoe.c
+++ b/drivers/net/ppp/pppoe.c
@@ -570,7 +570,7 @@ static int pppoe_release(struct socket *sock)
        po = pppox_sk(sk);
-        if (sk->sk_state & (PPPOX_CONNECTED | PPPOX_BOUND)) {
+        if (sk->sk_state & (PPPOX_CONNECTED | PPPOX_BOUND | PPPOX_ZOMBIE)) {
                dev_put(po->pppoe_dev);
                po->pppoe_dev = NULL;
        }
diff --git a/drivers/net/team/team.c b/drivers/net/team/team.c
index 341b65dbbcd3..f8cd61f449a4 100644
--- a/drivers/net/team/team.c
+++ b/drivers/net/team/team.c
@@ -848,7 +848,7 @@ static struct netpoll_info *team_netpoll_info(struct team *team)
 }
 #endif
-static void __team_port_change_check(struct team_port *port, bool linkup);
+static void __team_port_change_port_added(struct team_port *port, bool linkup);
 static int team_port_add(struct team *team, struct net_device *port_dev)
 {
@@ -948,7 +948,7 @@ static int team_port_add(struct team *team, struct net_device *port_dev)
        team_port_enable(team, port);
        list_add_tail_rcu(&port->list, &team->port_list);
        __team_compute_features(team);
-        __team_port_change_check(port, !!netif_carrier_ok(port_dev));
+        __team_port_change_port_added(port, !!netif_carrier_ok(port_dev));
        __team_options_change_check(team);
        netdev_info(dev, "Port device %s added\n", portname);
@@ -983,6 +983,8 @@ err_set_mtu:
        return err;
 }
+static void __team_port_change_port_removed(struct team_port *port);
 static int team_port_del(struct team *team, struct net_device *port_dev)
 {
        struct net_device *dev = team->dev;
@@ -999,8 +1001,7 @@ static int team_port_del(struct team *team, struct net_device *port_dev)
        __team_option_inst_mark_removed_port(team, port);
        __team_options_change_check(team);
        __team_option_inst_del_port(team, port);
-        port->removed = true;
+        __team_port_change_port_removed(port);
-        __team_port_change_check(port, false);
        team_port_disable(team, port);
        list_del_rcu(&port->list);
        netdev_rx_handler_unregister(port_dev);
@@ -1652,8 +1653,8 @@ static int team_nl_cmd_noop(struct sk_buff *skb, struct genl_info *info)
        hdr = genlmsg_put(msg, info->snd_pid, info->snd_seq,
                          &team_nl_family, 0, TEAM_CMD_NOOP);
-        if (IS_ERR(hdr)) {
+        if (!hdr) {
-                err = PTR_ERR(hdr);
+                err = -EMSGSIZE;
                goto err_msg_put;
        }
@@ -1847,8 +1848,8 @@ start_again:
        hdr = genlmsg_put(skb, pid, seq, &team_nl_family, flags | NLM_F_MULTI,
                          TEAM_CMD_OPTIONS_GET);
-        if (IS_ERR(hdr))
+        if (!hdr)
-                return PTR_ERR(hdr);
+                return -EMSGSIZE;
        if (nla_put_u32(skb, TEAM_ATTR_TEAM_IFINDEX, team->dev->ifindex))
                goto nla_put_failure;
@@ -2067,8 +2068,8 @@ static int team_nl_fill_port_list_get(struct sk_buff *skb,
        hdr = genlmsg_put(skb, pid, seq, &team_nl_family, flags,
                          TEAM_CMD_PORT_LIST_GET);
-        if (IS_ERR(hdr))
+        if (!hdr)
-                return PTR_ERR(hdr);
+                return -EMSGSIZE;
        if (nla_put_u32(skb, TEAM_ATTR_TEAM_IFINDEX, team->dev->ifindex))
                goto nla_put_failure;
@@ -2251,13 +2252,11 @@ static void __team_options_change_check(struct team *team)
 }
 /* rtnl lock is held */
-static void __team_port_change_check(struct team_port *port, bool linkup)
+static void __team_port_change_send(struct team_port *port, bool linkup)
 {
        int err;
-        if (!port->removed && port->state.linkup == linkup)
-                return;
        port->changed = true;
        port->state.linkup = linkup;
        team_refresh_port_linkup(port);
@@ -2282,6 +2281,23 @@ send_event:
 }
+static void __team_port_change_check(struct team_port *port, bool linkup)
+{
+        if (port->state.linkup != linkup)
+                __team_port_change_send(port, linkup);
+}
+static void __team_port_change_port_added(struct team_port *port, bool linkup)
+{
+        __team_port_change_send(port, linkup);
+}
+static void __team_port_change_port_removed(struct team_port *port)
+{
+        port->removed = true;
+        __team_port_change_send(port, false);
+}
 static void team_port_change_check(struct team_port *port, bool linkup)
 {
        struct team *team = port->team;
diff --git a/drivers/net/usb/smsc75xx.c b/drivers/net/usb/smsc75xx.c
index f5ab6e613ec8..376143e8a1aa 100644
--- a/drivers/net/usb/smsc75xx.c
+++ b/drivers/net/usb/smsc75xx.c
@@ -1253,6 +1253,7 @@ static struct usb_driver smsc75xx_driver = {
        .probe          = usbnet_probe,
        .suspend        = usbnet_suspend,
        .resume         = usbnet_resume,
+        .reset_resume   = usbnet_resume,
        .disconnect     = usbnet_disconnect,
        .disable_hub_initiated_lpm = 1,
 };
diff --git a/drivers/net/wireless/iwlwifi/pcie/trans.c b/drivers/net/wireless/iwlwifi/pcie/trans.c
index 1e86ea2266d4..dbeebef562d5 100644
--- a/drivers/net/wireless/iwlwifi/pcie/trans.c
+++ b/drivers/net/wireless/iwlwifi/pcie/trans.c
@@ -1442,6 +1442,7 @@ static int iwl_trans_pcie_start_hw(struct iwl_trans *trans)
        return err;
 err_free_irq:
+        trans_pcie->irq_requested = false;
        free_irq(trans_pcie->irq, trans);
 error:
        iwl_free_isr_ict(trans);
diff --git a/drivers/platform/x86/hp_accel.c b/drivers/platform/x86/hp_accel.c
index 6b9af989632b..18d74f29dcb2 100644
--- a/drivers/platform/x86/hp_accel.c
+++ b/drivers/platform/x86/hp_accel.c
@@ -382,31 +382,8 @@ static struct acpi_driver lis3lv02d_driver = {
        },
        .drv.pm = HP_ACCEL_PM,
 };
+module_acpi_driver(lis3lv02d_driver);
-static int __init lis3lv02d_init_module(void)
-{
-        int ret;
-        if (acpi_disabled)
-                return -ENODEV;
-        ret = acpi_bus_register_driver(&lis3lv02d_driver);
-        if (ret < 0)
-                return ret;
-        pr_info("driver loaded\n");
-        return 0;
-}
-static void __exit lis3lv02d_exit_module(void)
-{
-        acpi_bus_unregister_driver(&lis3lv02d_driver);
-}
 MODULE_DESCRIPTION("Glue between LIS3LV02Dx and HP ACPI BIOS and support for disk protection LED.");
 MODULE_AUTHOR("Yan Burman, Eric Piel, Pavel Machek");
 MODULE_LICENSE("GPL");
-module_init(lis3lv02d_init_module);
-module_exit(lis3lv02d_exit_module);
diff --git a/drivers/platform/x86/ideapad-laptop.c b/drivers/platform/x86/ideapad-laptop.c
index dae7abe1d711..5ff4f2e314d2 100644
--- a/drivers/platform/x86/ideapad-laptop.c
+++ b/drivers/platform/x86/ideapad-laptop.c
@@ -917,20 +917,8 @@ static struct acpi_driver ideapad_acpi_driver = {
        .drv.pm = &ideapad_pm,
        .owner = THIS_MODULE,
 };
+module_acpi_driver(ideapad_acpi_driver);
-static int __init ideapad_acpi_module_init(void)
-{
-        return acpi_bus_register_driver(&ideapad_acpi_driver);
-}
-static void __exit ideapad_acpi_module_exit(void)
-{
-        acpi_bus_unregister_driver(&ideapad_acpi_driver);
-}
 MODULE_AUTHOR("David Woodhouse <dwmw2@infradead.org>");
 MODULE_DESCRIPTION("IdeaPad ACPI Extras");
 MODULE_LICENSE("GPL");
-module_init(ideapad_acpi_module_init);
-module_exit(ideapad_acpi_module_exit);
diff --git a/drivers/platform/x86/topstar-laptop.c b/drivers/platform/x86/topstar-laptop.c
index d528daa0e81c..d727bfee89a6 100644
--- a/drivers/platform/x86/topstar-laptop.c
+++ b/drivers/platform/x86/topstar-laptop.c
@@ -186,27 +186,7 @@ static struct acpi_driver acpi_topstar_driver = {
                .notify = acpi_topstar_notify,
        },
 };
+module_acpi_driver(acpi_topstar_driver);
-static int __init topstar_laptop_init(void)
-{
-        int ret;
-        ret = acpi_bus_register_driver(&acpi_topstar_driver);
-        if (ret < 0)
-                return ret;
-        pr_info("ACPI extras driver loaded\n");
-        return 0;
-}
-static void __exit topstar_laptop_exit(void)
-{
-        acpi_bus_unregister_driver(&acpi_topstar_driver);
-}
-module_init(topstar_laptop_init);
-module_exit(topstar_laptop_exit);
 MODULE_AUTHOR("Herton Ronaldo Krzesinski");
 MODULE_DESCRIPTION("Topstar Laptop ACPI Extras driver");
diff --git a/drivers/platform/x86/toshiba_bluetooth.c b/drivers/platform/x86/toshiba_bluetooth.c
index 5e5d6317d690..e95be0b74859 100644
--- a/drivers/platform/x86/toshiba_bluetooth.c
+++ b/drivers/platform/x86/toshiba_bluetooth.c
@@ -122,30 +122,10 @@ static int toshiba_bt_rfkill_add(struct acpi_device *device)
        return result;
 }
-static int __init toshiba_bt_rfkill_init(void)
-{
-        int result;
-        result = acpi_bus_register_driver(&toshiba_bt_rfkill_driver);
-        if (result < 0) {
-                ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
-                                  "Error registering driver\n"));
-                return result;
-        }
-        return 0;
-}
 static int toshiba_bt_rfkill_remove(struct acpi_device *device, int type)
 {
        /* clean up */
        return 0;
 }
-static void __exit toshiba_bt_rfkill_exit(void)
+module_acpi_driver(toshiba_bt_rfkill_driver);
-{
-        acpi_bus_unregister_driver(&toshiba_bt_rfkill_driver);
-}
-module_init(toshiba_bt_rfkill_init);
-module_exit(toshiba_bt_rfkill_exit);
diff --git a/drivers/platform/x86/xo15-ebook.c b/drivers/platform/x86/xo15-ebook.c
index 38ba39d7ca7d..16d340c3b852 100644
--- a/drivers/platform/x86/xo15-ebook.c
+++ b/drivers/platform/x86/xo15-ebook.c
@@ -170,16 +170,4 @@ static struct acpi_driver xo15_ebook_driver = {
        },
        .drv.pm = &ebook_switch_pm,
 };
+module_acpi_driver(xo15_ebook_driver);
-static int __init xo15_ebook_init(void)
-{
-        return acpi_bus_register_driver(&xo15_ebook_driver);
-}
-static void __exit xo15_ebook_exit(void)
-{
-        acpi_bus_unregister_driver(&xo15_ebook_driver);
-}
-module_init(xo15_ebook_init);
-module_exit(xo15_ebook_exit);
diff --git a/drivers/pnp/pnpacpi/core.c b/drivers/pnp/pnpacpi/core.c
index 507a8e2b9a4c..26b5d4b18dd7 100644
--- a/drivers/pnp/pnpacpi/core.c
+++ b/drivers/pnp/pnpacpi/core.c
@@ -321,14 +321,9 @@ static int __init acpi_pnp_match(struct device *dev, void *_pnp)
 {
        struct acpi_device *acpi = to_acpi_device(dev);
        struct pnp_dev *pnp = _pnp;
-        struct device *physical_device;
-        physical_device = acpi_get_physical_device(acpi->handle);
-        if (physical_device)
-                put_device(physical_device);
        /* true means it matched */
-        return !physical_device
+        return !acpi->physical_node_count
            && compare_pnp_id(pnp->id, acpi_device_hid(acpi));
 }
diff --git a/drivers/sh/pfc/pinctrl.c b/drivers/sh/pfc/pinctrl.c
index a3ac39b79192..0646bf6e7889 100644
--- a/drivers/sh/pfc/pinctrl.c
+++ b/drivers/sh/pfc/pinctrl.c
@@ -208,6 +208,8 @@ static int sh_pfc_gpio_request_enable(struct pinctrl_dev *pctldev,
                break;
        case PINMUX_TYPE_GPIO:
+        case PINMUX_TYPE_INPUT:
+        case PINMUX_TYPE_OUTPUT:
                break;
        default:
                pr_err("Unsupported mux type (%d), bailing...\n", pinmux_type);
diff --git a/drivers/usb/core/devices.c b/drivers/usb/core/devices.c
index d95696584762..3440812b4a84 100644
--- a/drivers/usb/core/devices.c
+++ b/drivers/usb/core/devices.c
@@ -624,7 +624,7 @@ static ssize_t usb_device_read(struct file *file, char __user *buf,
        /* print devices for all busses */
        list_for_each_entry(bus, &usb_bus_list, bus_list) {
                /* recurse through all children of the root hub */
-                if (!bus->root_hub)
+                if (!bus_to_hcd(bus)->rh_registered)
                        continue;
                usb_lock_device(bus->root_hub);
                ret = usb_device_dump(&buf, &nbytes, &skip_bytes, ppos,
diff --git a/drivers/usb/core/hcd.c b/drivers/usb/core/hcd.c
index bc84106ac057..75ba2091f9b4 100644
--- a/drivers/usb/core/hcd.c
+++ b/drivers/usb/core/hcd.c
@@ -1011,10 +1011,7 @@ static int register_root_hub(struct usb_hcd *hcd)
        if (retval) {
                dev_err (parent_dev, "can't register root hub for %s, %d\n",
                                dev_name(&usb_dev->dev), retval);
-        }
+        } else {
-        mutex_unlock(&usb_bus_list_lock);
-        if (retval == 0) {
                spin_lock_irq (&hcd_root_hub_lock);
                hcd->rh_registered = 1;
                spin_unlock_irq (&hcd_root_hub_lock);
@@ -1023,6 +1020,7 @@ static int register_root_hub(struct usb_hcd *hcd)
                if (HCD_DEAD(hcd))
                        usb_hc_died (hcd);      /* This time clean up */
        }
+        mutex_unlock(&usb_bus_list_lock);
        return retval;
 }
diff --git a/drivers/usb/core/usb-acpi.c b/drivers/usb/core/usb-acpi.c
index 8947b203d5a4..ce45f5535236 100644
--- a/drivers/usb/core/usb-acpi.c
+++ b/drivers/usb/core/usb-acpi.c
@@ -52,18 +52,19 @@ out:
 static int usb_acpi_check_pld(struct usb_device *udev, acpi_handle handle)
 {
        acpi_status status;
-        struct acpi_pld pld;
+        struct acpi_pld_info *pld;
        status = acpi_get_physical_device_location(handle, &pld);
        if (ACPI_FAILURE(status))
                return -ENODEV;
-        if (pld.user_visible)
+        if (pld->user_visible)
                udev->removable = USB_DEVICE_REMOVABLE;
        else
                udev->removable = USB_DEVICE_FIXED;
+        ACPI_FREE(pld);
        return 0;
 }
diff --git a/drivers/usb/host/ohci-at91.c b/drivers/usb/host/ohci-at91.c
index aaa8d2bce217..0bf72f943b00 100644
--- a/drivers/usb/host/ohci-at91.c
+++ b/drivers/usb/host/ohci-at91.c
@@ -467,7 +467,8 @@ static irqreturn_t ohci_hcd_at91_overcurrent_irq(int irq, void *data)
        /* From the GPIO notifying the over-current situation, find
         * out the corresponding port */
        at91_for_each_port(port) {
-                if (gpio_to_irq(pdata->overcurrent_pin[port]) == irq) {
+                if (gpio_is_valid(pdata->overcurrent_pin[port]) &&
+                                gpio_to_irq(pdata->overcurrent_pin[port]) == irq) {
                        gpio = pdata->overcurrent_pin[port];
                        break;
                }
diff --git a/drivers/vfio/pci/vfio_pci_intrs.c b/drivers/vfio/pci/vfio_pci_intrs.c
index 211a4920b88a..d8dedc7d3910 100644
--- a/drivers/vfio/pci/vfio_pci_intrs.c
+++ b/drivers/vfio/pci/vfio_pci_intrs.c
@@ -76,9 +76,24 @@ static int virqfd_wakeup(wait_queue_t *wait, unsigned mode, int sync, void *key)
                        schedule_work(&virqfd->inject);
        }
-        if (flags & POLLHUP)
+        if (flags & POLLHUP) {
-                /* The eventfd is closing, detach from VFIO */
+                unsigned long flags;
-                virqfd_deactivate(virqfd);
+                spin_lock_irqsave(&virqfd->vdev->irqlock, flags);
+                /*
+                 * The eventfd is closing, if the virqfd has not yet been
+                 * queued for release, as determined by testing whether the
+                 * vdev pointer to it is still valid, queue it now.  As
+                 * with kvm irqfds, we know we won't race against the virqfd
+                 * going away because we hold wqh->lock to get here.
+                 */
+                if (*(virqfd->pvirqfd) == virqfd) {
+                        *(virqfd->pvirqfd) = NULL;
+                        virqfd_deactivate(virqfd);
+                }
+                spin_unlock_irqrestore(&virqfd->vdev->irqlock, flags);
+        }
        return 0;
 }
@@ -93,7 +108,6 @@ static void virqfd_ptable_queue_proc(struct file *file,
 static void virqfd_shutdown(struct work_struct *work)
 {
        struct virqfd *virqfd = container_of(work, struct virqfd, shutdown);
-        struct virqfd **pvirqfd = virqfd->pvirqfd;
        u64 cnt;
        eventfd_ctx_remove_wait_queue(virqfd->eventfd, &virqfd->wait, &cnt);
@@ -101,7 +115,6 @@ static void virqfd_shutdown(struct work_struct *work)
        eventfd_ctx_put(virqfd->eventfd);
        kfree(virqfd);
-        *pvirqfd = NULL;
 }
 static void virqfd_inject(struct work_struct *work)
@@ -122,15 +135,11 @@ static int virqfd_enable(struct vfio_pci_device *vdev,
        int ret = 0;
        unsigned int events;
-        if (*pvirqfd)
-                return -EBUSY;
        virqfd = kzalloc(sizeof(*virqfd), GFP_KERNEL);
        if (!virqfd)
                return -ENOMEM;
        virqfd->pvirqfd = pvirqfd;
-        *pvirqfd = virqfd;
        virqfd->vdev = vdev;
        virqfd->handler = handler;
        virqfd->thread = thread;
@@ -154,6 +163,23 @@ static int virqfd_enable(struct vfio_pci_device *vdev,
        virqfd->eventfd = ctx;
        /*
+         * virqfds can be released by closing the eventfd or directly
+         * through ioctl.  These are both done through a workqueue, so
+         * we update the pointer to the virqfd under lock to avoid
+         * pushing multiple jobs to release the same virqfd.
+         */
+        spin_lock_irq(&vdev->irqlock);
+        if (*pvirqfd) {
+                spin_unlock_irq(&vdev->irqlock);
+                ret = -EBUSY;
+                goto fail;
+        }
+        *pvirqfd = virqfd;
+        spin_unlock_irq(&vdev->irqlock);
+        /*
         * Install our own custom wake-up handling so we are notified via
         * a callback whenever someone signals the underlying eventfd.
         */
@@ -187,19 +213,29 @@ fail:
                fput(file);
        kfree(virqfd);
-        *pvirqfd = NULL;
        return ret;
 }
-static void virqfd_disable(struct virqfd *virqfd)
+static void virqfd_disable(struct vfio_pci_device *vdev,
+                           struct virqfd **pvirqfd)
 {
-        if (!virqfd)
+        unsigned long flags;
-                return;
+        spin_lock_irqsave(&vdev->irqlock, flags);
+        if (*pvirqfd) {
+                virqfd_deactivate(*pvirqfd);
+                *pvirqfd = NULL;
+        }
-        virqfd_deactivate(virqfd);
+        spin_unlock_irqrestore(&vdev->irqlock, flags);
-        /* Block until we know all outstanding shutdown jobs have completed. */
+        /*
+         * Block until we know all outstanding shutdown jobs have completed.
+         * Even if we don't queue the job, flush the wq to be sure it's
+         * been released.
+         */
        flush_workqueue(vfio_irqfd_cleanup_wq);
 }
@@ -392,8 +428,8 @@ static int vfio_intx_set_signal(struct vfio_pci_device *vdev, int fd)
 static void vfio_intx_disable(struct vfio_pci_device *vdev)
 {
        vfio_intx_set_signal(vdev, -1);
-        virqfd_disable(vdev->ctx[0].unmask);
+        virqfd_disable(vdev, &vdev->ctx[0].unmask);
-        virqfd_disable(vdev->ctx[0].mask);
+        virqfd_disable(vdev, &vdev->ctx[0].mask);
        vdev->irq_type = VFIO_PCI_NUM_IRQS;
        vdev->num_ctx = 0;
        kfree(vdev->ctx);
@@ -539,8 +575,8 @@ static void vfio_msi_disable(struct vfio_pci_device *vdev, bool msix)
        vfio_msi_set_block(vdev, 0, vdev->num_ctx, NULL, msix);
        for (i = 0; i < vdev->num_ctx; i++) {
-                virqfd_disable(vdev->ctx[i].unmask);
+                virqfd_disable(vdev, &vdev->ctx[i].unmask);
-                virqfd_disable(vdev->ctx[i].mask);
+                virqfd_disable(vdev, &vdev->ctx[i].mask);
        }
        if (msix) {
@@ -577,7 +613,7 @@ static int vfio_pci_set_intx_unmask(struct vfio_pci_device *vdev,
                                             vfio_send_intx_eventfd, NULL,
                                             &vdev->ctx[0].unmask, fd);
-                virqfd_disable(vdev->ctx[0].unmask);
+                virqfd_disable(vdev, &vdev->ctx[0].unmask);
        }
        return 0;
diff --git a/fs/dcache.c b/fs/dcache.c
index 16521a9f2038..693f95bf1cae 100644
--- a/fs/dcache.c
+++ b/fs/dcache.c
@@ -1134,6 +1134,8 @@ positive:
        return 1;
 rename_retry:
+        if (locked)
+                goto again;
        locked = 1;
        write_seqlock(&rename_lock);
        goto again;
@@ -1141,7 +1143,7 @@ rename_retry:
 EXPORT_SYMBOL(have_submounts);
 /*
- * Search the dentry child list for the specified parent,
+ * Search the dentry child list of the specified parent,
 * and move any unused dentries to the end of the unused
 * list for prune_dcache(). We descend to the next level
 * whenever the d_subdirs list is non-empty and continue
@@ -1236,6 +1238,8 @@ out:
 rename_retry:
        if (found)
                return found;
+        if (locked)
+                goto again;
        locked = 1;
        write_seqlock(&rename_lock);
        goto again;
@@ -3035,6 +3039,8 @@ resume:
        return;
 rename_retry:
+        if (locked)
+                goto again;
        locked = 1;
        write_seqlock(&rename_lock);
        goto again;
diff --git a/fs/lockd/svclock.c b/fs/lockd/svclock.c
index fb1a2bedbe97..8d80c990dffd 100644
--- a/fs/lockd/svclock.c
+++ b/fs/lockd/svclock.c
@@ -289,7 +289,6 @@ static void nlmsvc_free_block(struct kref *kref)
        dprintk("lockd: freeing block %p...\n", block);
        /* Remove block from file's list of blocks */
-        mutex_lock(&file->f_mutex);
        list_del_init(&block->b_flist);
        mutex_unlock(&file->f_mutex);
@@ -303,7 +302,7 @@ static void nlmsvc_free_block(struct kref *kref)
 static void nlmsvc_release_block(struct nlm_block *block)
 {
        if (block != NULL)
-                kref_put(&block->b_count, nlmsvc_free_block);
+                kref_put_mutex(&block->b_count, nlmsvc_free_block, &block->b_file->f_mutex);
 }
 /*
diff --git a/fs/namespace.c b/fs/namespace.c
index 4d31f73e2561..7bdf7907413f 100644
--- a/fs/namespace.c
+++ b/fs/namespace.c
@@ -1886,8 +1886,14 @@ static int do_add_mount(struct mount *newmnt, struct path *path, int mnt_flags)
                return err;
        err = -EINVAL;
-        if (!(mnt_flags & MNT_SHRINKABLE) && !check_mnt(real_mount(path->mnt)))
+        if (unlikely(!check_mnt(real_mount(path->mnt)))) {
-                goto unlock;
+                /* that's acceptable only for automounts done in private ns */
+                if (!(mnt_flags & MNT_SHRINKABLE))
+                        goto unlock;
+                /* ... and for those we'd better have mountpoint still alive */
+                if (!real_mount(path->mnt)->mnt_ns)
+                        goto unlock;
+        }
        /* Refuse the same filesystem on the same mount point */
        err = -EBUSY;
diff --git a/include/acpi/acbuffer.h b/include/acpi/acbuffer.h
new file mode 100644
index 000000000000..a1e45cdd729a
--- /dev/null
+++ b/include/acpi/acbuffer.h
@@ -0,0 +1,235 @@
+/******************************************************************************
+ *
+ * Name: acbuffer.h - Support for buffers returned by ACPI predefined names
+ *
+ *****************************************************************************/
+/*
+ * Copyright (C) 2000 - 2012, Intel Corp.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions, and the following disclaimer,
+ *    without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ *    substantially similar to the "NO WARRANTY" disclaimer below
+ *    ("Disclaimer") and any redistribution must be conditioned upon
+ *    including a substantially similar Disclaimer requirement for further
+ *    binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ *    of any contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+#ifndef __ACBUFFER_H__
+#define __ACBUFFER_H__
+/*
+ * Contains buffer structures for these predefined names:
+ * _FDE, _GRT, _GTM, _PLD, _SRT
+ */
+/*
+ * Note: C bitfields are not used for this reason:
+ *
+ * "Bitfields are great and easy to read, but unfortunately the C language
+ * does not specify the layout of bitfields in memory, which means they are
+ * essentially useless for dealing with packed data in on-disk formats or
+ * binary wire protocols." (Or ACPI tables and buffers.) "If you ask me,
+ * this decision was a design error in C. Ritchie could have picked an order
+ * and stuck with it." Norman Ramsey.
+ * See http://stackoverflow.com/a/1053662/41661
+ */
+/* _FDE return value */
+struct acpi_fde_info {
+        u32 floppy0;
+        u32 floppy1;
+        u32 floppy2;
+        u32 floppy3;
+        u32 tape;
+};
+/*
+ * _GRT return value
+ * _SRT input value
+ */
+struct acpi_grt_info {
+        u16 year;
+        u8 month;
+        u8 day;
+        u8 hour;
+        u8 minute;
+        u8 second;
+        u8 valid;
+        u16 milliseconds;
+        u16 timezone;
+        u8 daylight;
+        u8 reserved[3];
+};
+/* _GTM return value */
+struct acpi_gtm_info {
+        u32 pio_speed0;
+        u32 dma_speed0;
+        u32 pio_speed1;
+        u32 dma_speed1;
+        u32 flags;
+};
+/*
+ * Formatted _PLD return value. The minimum size is a package containing
+ * one buffer.
+ * Revision 1: Buffer is 16 bytes (128 bits)
+ * Revision 2: Buffer is 20 bytes (160 bits)
+ *
+ * Note: This structure is returned from the acpi_decode_pld_buffer
+ * interface.
+ */
+struct acpi_pld_info {
+        u8 revision;
+        u8 ignore_color;
+        u32 color;
+        u16 width;
+        u16 height;
+        u8 user_visible;
+        u8 dock;
+        u8 lid;
+        u8 panel;
+        u8 vertical_position;
+        u8 horizontal_position;
+        u8 shape;
+        u8 group_orientation;
+        u8 group_token;
+        u8 group_position;
+        u8 bay;
+        u8 ejectable;
+        u8 ospm_eject_required;
+        u8 cabinet_number;
+        u8 card_cage_number;
+        u8 reference;
+        u8 rotation;
+        u8 order;
+        u8 reserved;
+        u16 vertical_offset;
+        u16 horizontal_offset;
+};
+/*
+ * Macros to:
+ *     1) Convert a _PLD buffer to internal struct acpi_pld_info format - ACPI_PLD_GET*
+ *        (Used by acpi_decode_pld_buffer)
+ *     2) Construct a _PLD buffer - ACPI_PLD_SET*
+ *        (Intended for BIOS use only)
+ */
+#define ACPI_PLD_REV1_BUFFER_SIZE               16      /* For Revision 1 of the buffer (From ACPI spec) */
+#define ACPI_PLD_BUFFER_SIZE                    20      /* For Revision 2 of the buffer (From ACPI spec) */
+/* First 32-bit dword, bits 0:32 */
+#define ACPI_PLD_GET_REVISION(dword)            ACPI_GET_BITS (dword, 0, ACPI_7BIT_MASK)
+#define ACPI_PLD_SET_REVISION(dword,value)      ACPI_SET_BITS (dword, 0, ACPI_7BIT_MASK, value) /* Offset 0, Len 7 */
+#define ACPI_PLD_GET_IGNORE_COLOR(dword)        ACPI_GET_BITS (dword, 7, ACPI_1BIT_MASK)
+#define ACPI_PLD_SET_IGNORE_COLOR(dword,value)  ACPI_SET_BITS (dword, 7, ACPI_1BIT_MASK, value) /* Offset 7, Len 1 */
+#define ACPI_PLD_GET_COLOR(dword)               ACPI_GET_BITS (dword, 8, ACPI_24BIT_MASK)
+#define ACPI_PLD_SET_COLOR(dword,value)         ACPI_SET_BITS (dword, 8, ACPI_24BIT_MASK, value)        /* Offset 8, Len 24 */
+/* Second 32-bit dword, bits 33:63 */
+#define ACPI_PLD_GET_WIDTH(dword)               ACPI_GET_BITS (dword, 0, ACPI_16BIT_MASK)
+#define ACPI_PLD_SET_WIDTH(dword,value)         ACPI_SET_BITS (dword, 0, ACPI_16BIT_MASK, value)        /* Offset 32+0=32, Len 16 */
+#define ACPI_PLD_GET_HEIGHT(dword)              ACPI_GET_BITS (dword, 16, ACPI_16BIT_MASK)
+#define ACPI_PLD_SET_HEIGHT(dword,value)        ACPI_SET_BITS (dword, 16, ACPI_16BIT_MASK, value)       /* Offset 32+16=48, Len 16 */
+/* Third 32-bit dword, bits 64:95 */
+#define ACPI_PLD_GET_USER_VISIBLE(dword)        ACPI_GET_BITS (dword, 0, ACPI_1BIT_MASK)
+#define ACPI_PLD_SET_USER_VISIBLE(dword,value)  ACPI_SET_BITS (dword, 0, ACPI_1BIT_MASK, value) /* Offset 64+0=64, Len 1 */
+#define ACPI_PLD_GET_DOCK(dword)                ACPI_GET_BITS (dword, 1, ACPI_1BIT_MASK)
+#define ACPI_PLD_SET_DOCK(dword,value)          ACPI_SET_BITS (dword, 1, ACPI_1BIT_MASK, value) /* Offset 64+1=65, Len 1 */
+#define ACPI_PLD_GET_LID(dword)                 ACPI_GET_BITS (dword, 2, ACPI_1BIT_MASK)
+#define ACPI_PLD_SET_LID(dword,value)           ACPI_SET_BITS (dword, 2, ACPI_1BIT_MASK, value) /* Offset 64+2=66, Len 1 */
+#define ACPI_PLD_GET_PANEL(dword)               ACPI_GET_BITS (dword, 3, ACPI_3BIT_MASK)
+#define ACPI_PLD_SET_PANEL(dword,value)         ACPI_SET_BITS (dword, 3, ACPI_3BIT_MASK, value) /* Offset 64+3=67, Len 3 */
+#define ACPI_PLD_GET_VERTICAL(dword)            ACPI_GET_BITS (dword, 6, ACPI_2BIT_MASK)
+#define ACPI_PLD_SET_VERTICAL(dword,value)      ACPI_SET_BITS (dword, 6, ACPI_2BIT_MASK, value) /* Offset 64+6=70, Len 2 */
+#define ACPI_PLD_GET_HORIZONTAL(dword)          ACPI_GET_BITS (dword, 8, ACPI_2BIT_MASK)
+#define ACPI_PLD_SET_HORIZONTAL(dword,value)    ACPI_SET_BITS (dword, 8, ACPI_2BIT_MASK, value) /* Offset 64+8=72, Len 2 */
+#define ACPI_PLD_GET_SHAPE(dword)               ACPI_GET_BITS (dword, 10, ACPI_4BIT_MASK)
+#define ACPI_PLD_SET_SHAPE(dword,value)         ACPI_SET_BITS (dword, 10, ACPI_4BIT_MASK, value)        /* Offset 64+10=74, Len 4 */
+#define ACPI_PLD_GET_ORIENTATION(dword)         ACPI_GET_BITS (dword, 14, ACPI_1BIT_MASK)
+#define ACPI_PLD_SET_ORIENTATION(dword,value)   ACPI_SET_BITS (dword, 14, ACPI_1BIT_MASK, value)        /* Offset 64+14=78, Len 1 */
+#define ACPI_PLD_GET_TOKEN(dword)               ACPI_GET_BITS (dword, 15, ACPI_8BIT_MASK)
+#define ACPI_PLD_SET_TOKEN(dword,value)         ACPI_SET_BITS (dword, 15, ACPI_8BIT_MASK, value)        /* Offset 64+15=79, Len 8 */
+#define ACPI_PLD_GET_POSITION(dword)            ACPI_GET_BITS (dword, 23, ACPI_8BIT_MASK)
+#define ACPI_PLD_SET_POSITION(dword,value)      ACPI_SET_BITS (dword, 23, ACPI_8BIT_MASK, value)        /* Offset 64+23=87, Len 8 */
+#define ACPI_PLD_GET_BAY(dword)                 ACPI_GET_BITS (dword, 31, ACPI_1BIT_MASK)
+#define ACPI_PLD_SET_BAY(dword,value)           ACPI_SET_BITS (dword, 31, ACPI_1BIT_MASK, value)        /* Offset 64+31=95, Len 1 */
+/* Fourth 32-bit dword, bits 96:127 */
+#define ACPI_PLD_GET_EJECTABLE(dword)           ACPI_GET_BITS (dword, 0, ACPI_1BIT_MASK)
+#define ACPI_PLD_SET_EJECTABLE(dword,value)     ACPI_SET_BITS (dword, 0, ACPI_1BIT_MASK, value) /* Offset 96+0=96, Len 1 */
+#define ACPI_PLD_GET_OSPM_EJECT(dword)          ACPI_GET_BITS (dword, 1, ACPI_1BIT_MASK)
+#define ACPI_PLD_SET_OSPM_EJECT(dword,value)    ACPI_SET_BITS (dword, 1, ACPI_1BIT_MASK, value) /* Offset 96+1=97, Len 1 */
+#define ACPI_PLD_GET_CABINET(dword)             ACPI_GET_BITS (dword, 2, ACPI_8BIT_MASK)
+#define ACPI_PLD_SET_CABINET(dword,value)       ACPI_SET_BITS (dword, 2, ACPI_8BIT_MASK, value) /* Offset 96+2=98, Len 8 */
+#define ACPI_PLD_GET_CARD_CAGE(dword)           ACPI_GET_BITS (dword, 10, ACPI_8BIT_MASK)
+#define ACPI_PLD_SET_CARD_CAGE(dword,value)     ACPI_SET_BITS (dword, 10, ACPI_8BIT_MASK, value)        /* Offset 96+10=106, Len 8 */
+#define ACPI_PLD_GET_REFERENCE(dword)           ACPI_GET_BITS (dword, 18, ACPI_1BIT_MASK)
+#define ACPI_PLD_SET_REFERENCE(dword,value)     ACPI_SET_BITS (dword, 18, ACPI_1BIT_MASK, value)        /* Offset 96+18=114, Len 1 */
+#define ACPI_PLD_GET_ROTATION(dword)            ACPI_GET_BITS (dword, 19, ACPI_4BIT_MASK)
+#define ACPI_PLD_SET_ROTATION(dword,value)      ACPI_SET_BITS (dword, 19, ACPI_4BIT_MASK, value)        /* Offset 96+19=115, Len 4 */
+#define ACPI_PLD_GET_ORDER(dword)               ACPI_GET_BITS (dword, 23, ACPI_5BIT_MASK)
+#define ACPI_PLD_SET_ORDER(dword,value)         ACPI_SET_BITS (dword, 23, ACPI_5BIT_MASK, value)        /* Offset 96+23=119, Len 5 */
+/* Fifth 32-bit dword, bits 128:159 (Revision 2 of _PLD only) */
+#define ACPI_PLD_GET_VERT_OFFSET(dword)         ACPI_GET_BITS (dword, 0, ACPI_16BIT_MASK)
+#define ACPI_PLD_SET_VERT_OFFSET(dword,value)   ACPI_SET_BITS (dword, 0, ACPI_16BIT_MASK, value)        /* Offset 128+0=128, Len 16 */
+#define ACPI_PLD_GET_HORIZ_OFFSET(dword)        ACPI_GET_BITS (dword, 16, ACPI_16BIT_MASK)
+#define ACPI_PLD_SET_HORIZ_OFFSET(dword,value)  ACPI_SET_BITS (dword, 16, ACPI_16BIT_MASK, value)       /* Offset 128+16=144, Len 16 */
+#endif                          /* ACBUFFER_H */
diff --git a/include/acpi/acnames.h b/include/acpi/acnames.h
index d988ac54f41e..745dd24e3cb5 100644
--- a/include/acpi/acnames.h
+++ b/include/acpi/acnames.h
@@ -63,11 +63,10 @@
 #define METHOD_NAME__PRW        "_PRW"
 #define METHOD_NAME__SRS        "_SRS"
 #define METHOD_NAME__CBA        "_CBA"
+#define METHOD_NAME__PLD        "_PLD"
 /* Method names - these methods must appear at the namespace root */
-#define METHOD_PATHNAME__BFS    "\\_BFS"
-#define METHOD_PATHNAME__GTS    "\\_GTS"
 #define METHOD_PATHNAME__PTS    "\\_PTS"
 #define METHOD_PATHNAME__SST    "\\_SI._SST"
 #define METHOD_PATHNAME__WAK    "\\_WAK"
diff --git a/include/acpi/acpi_bus.h b/include/acpi/acpi_bus.h
index 3eb9de318824..0daa0fbd8654 100644
--- a/include/acpi/acpi_bus.h
+++ b/include/acpi/acpi_bus.h
@@ -54,37 +54,8 @@ acpi_status
 acpi_evaluate_hotplug_ost(acpi_handle handle, u32 source_event,
                        u32 status_code, struct acpi_buffer *status_buf);
-struct acpi_pld {
-        unsigned int revision:7; /* 0 */
-        unsigned int ignore_colour:1; /* 7 */
-        unsigned int colour:24; /* 8 */
-        unsigned int width:16; /* 32 */
-        unsigned int height:16; /* 48 */
-        unsigned int user_visible:1; /* 64 */
-        unsigned int dock:1; /* 65 */
-        unsigned int lid:1; /* 66 */
-        unsigned int panel:3; /* 67 */
-        unsigned int vertical_pos:2; /* 70 */
-        unsigned int horizontal_pos:2; /* 72 */
-        unsigned int shape:4; /* 74 */
-        unsigned int group_orientation:1; /* 78 */
-        unsigned int group_token:8; /* 79 */
-        unsigned int group_position:8; /* 87 */
-        unsigned int bay:1; /* 95 */
-        unsigned int ejectable:1; /* 96 */
-        unsigned int ospm_eject_required:1; /* 97 */
-        unsigned int cabinet_number:8; /* 98 */
-        unsigned int card_cage_number:8; /* 106 */
-        unsigned int reference:1; /* 114 */
-        unsigned int rotation:4; /* 115 */
-        unsigned int order:5; /* 119 */
-        unsigned int reserved:4; /* 124 */
-        unsigned int vertical_offset:16; /* 128 */
-        unsigned int horizontal_offset:16; /* 144 */
-} __attribute__((__packed__));
 acpi_status
-acpi_get_physical_device_location(acpi_handle handle, struct acpi_pld *pld);
+acpi_get_physical_device_location(acpi_handle handle, struct acpi_pld_info **pld);
 #ifdef CONFIG_ACPI
 #include <linux/proc_fs.h>
@@ -283,8 +254,16 @@ struct acpi_device_wakeup {
        int prepare_count;
 };
-/* Device */
+struct acpi_device_physical_node {
+        u8 node_id;
+        struct list_head node;
+        struct device *dev;
+};
+/* set maximum of physical nodes to 32 for expansibility */
+#define ACPI_MAX_PHYSICAL_NODE  32
+/* Device */
 struct acpi_device {
        int device_type;
        acpi_handle handle;             /* no handle for fixed hardware */
@@ -305,6 +284,10 @@ struct acpi_device {
        struct device dev;
        struct acpi_bus_ops bus_ops;    /* workaround for different code path for hotplug */
        enum acpi_bus_removal_type removal_type;        /* indicate for different removal type */
+        u8 physical_node_count;
+        struct list_head physical_node_list;
+        struct mutex physical_node_lock;
+        DECLARE_BITMAP(physical_node_id_bitmap, ACPI_MAX_PHYSICAL_NODE);
 };
 static inline void *acpi_driver_data(struct acpi_device *d)
@@ -382,6 +365,19 @@ int acpi_match_device_ids(struct acpi_device *device,
 int acpi_create_dir(struct acpi_device *);
 void acpi_remove_dir(struct acpi_device *);
+/**
+ * module_acpi_driver(acpi_driver) - Helper macro for registering an ACPI driver
+ * @__acpi_driver: acpi_driver struct
+ *
+ * Helper macro for ACPI drivers which do not do anything special in module
+ * init/exit. This eliminates a lot of boilerplate. Each module may only
+ * use this macro once, and calling it replaces module_init() and module_exit()
+ */
+#define module_acpi_driver(__acpi_driver) \
+        module_driver(__acpi_driver, acpi_bus_register_driver, \
+                      acpi_bus_unregister_driver)
 /*
 * Bind physical devices with ACPI devices
 */
@@ -395,7 +391,6 @@ struct acpi_bus_type {
 };
 int register_acpi_bus_type(struct acpi_bus_type *);
 int unregister_acpi_bus_type(struct acpi_bus_type *);
-struct device *acpi_get_physical_device(acpi_handle);
 struct acpi_pci_root {
        struct list_head node;
diff --git a/include/acpi/acpixf.h b/include/acpi/acpixf.h
index 26a92fc28a59..267bfc4b26a9 100644
--- a/include/acpi/acpixf.h
+++ b/include/acpi/acpixf.h
@@ -47,11 +47,12 @@
 /* Current ACPICA subsystem version in YYYYMMDD format */
-#define ACPI_CA_VERSION                 0x20120711
+#define ACPI_CA_VERSION                 0x20120913
 #include "acconfig.h"
 #include "actypes.h"
 #include "actbl.h"
+#include "acbuffer.h"
 extern u8 acpi_gbl_permanent_mmap;
@@ -144,6 +145,10 @@ acpi_check_address_range(acpi_adr_space_type space_id,
                         acpi_physical_address address,
                         acpi_size length, u8 warn);
+acpi_status
+acpi_decode_pld_buffer(u8 *in_buffer,
+                       acpi_size length, struct acpi_pld_info **return_buffer);
 /*
 * ACPI Memory management
 */
diff --git a/include/acpi/actbl.h b/include/acpi/actbl.h
index 59a73e1b2845..4f94b1d812d5 100644
--- a/include/acpi/actbl.h
+++ b/include/acpi/actbl.h
@@ -79,9 +79,15 @@
 #pragma pack(1)
 /*
- * Note about bitfields: The u8 type is used for bitfields in ACPI tables.
+ * Note: C bitfields are not used for this reason:
- * This is the only type that is even remotely portable. Anything else is not
+ *
- * portable, so do not use any other bitfield types.
+ * "Bitfields are great and easy to read, but unfortunately the C language
+ * does not specify the layout of bitfields in memory, which means they are
+ * essentially useless for dealing with packed data in on-disk formats or
+ * binary wire protocols." (Or ACPI tables and buffers.) "If you ask me,
+ * this decision was a design error in C. Ritchie could have picked an order
+ * and stuck with it." Norman Ramsey.
+ * See http://stackoverflow.com/a/1053662/41661
 */
 /*******************************************************************************
@@ -94,7 +100,7 @@
 struct acpi_table_header {
        char signature[ACPI_NAME_SIZE]; /* ASCII table signature */
        u32 length;             /* Length of table in bytes, including this header */
-        u8 revision;            /* ACPI Specification minor version # */
+        u8 revision;            /* ACPI Specification minor version number */
        u8 checksum;            /* To make sum of entire table == 0 */
        char oem_id[ACPI_OEM_ID_SIZE];  /* ASCII OEM identification */
        char oem_table_id[ACPI_OEM_TABLE_ID_SIZE];      /* ASCII OEM table identification */
@@ -108,7 +114,7 @@ struct acpi_table_header {
 * GAS - Generic Address Structure (ACPI 2.0+)
 *
 * Note: Since this structure is used in the ACPI tables, it is byte aligned.
- * If misaliged access is not supported by the hardware, accesses to the
+ * If misaligned access is not supported by the hardware, accesses to the
 * 64-bit Address field must be performed with care.
 *
 ******************************************************************************/
@@ -210,18 +216,18 @@ struct acpi_table_fadt {
        u8 preferred_profile;   /* Conveys preferred power management profile to OSPM. */
        u16 sci_interrupt;      /* System vector of SCI interrupt */
        u32 smi_command;        /* 32-bit Port address of SMI command port */
-        u8 acpi_enable;         /* Value to write to smi_cmd to enable ACPI */
+        u8 acpi_enable;         /* Value to write to SMI_CMD to enable ACPI */
-        u8 acpi_disable;        /* Value to write to smi_cmd to disable ACPI */
+        u8 acpi_disable;        /* Value to write to SMI_CMD to disable ACPI */
-        u8 s4_bios_request;     /* Value to write to SMI CMD to enter S4BIOS state */
+        u8 s4_bios_request;     /* Value to write to SMI_CMD to enter S4BIOS state */
        u8 pstate_control;      /* Processor performance state control */
-        u32 pm1a_event_block;   /* 32-bit Port address of Power Mgt 1a Event Reg Blk */
+        u32 pm1a_event_block;   /* 32-bit port address of Power Mgt 1a Event Reg Blk */
-        u32 pm1b_event_block;   /* 32-bit Port address of Power Mgt 1b Event Reg Blk */
+        u32 pm1b_event_block;   /* 32-bit port address of Power Mgt 1b Event Reg Blk */
-        u32 pm1a_control_block; /* 32-bit Port address of Power Mgt 1a Control Reg Blk */
+        u32 pm1a_control_block; /* 32-bit port address of Power Mgt 1a Control Reg Blk */
-        u32 pm1b_control_block; /* 32-bit Port address of Power Mgt 1b Control Reg Blk */
+        u32 pm1b_control_block; /* 32-bit port address of Power Mgt 1b Control Reg Blk */
-        u32 pm2_control_block;  /* 32-bit Port address of Power Mgt 2 Control Reg Blk */
+        u32 pm2_control_block;  /* 32-bit port address of Power Mgt 2 Control Reg Blk */
-        u32 pm_timer_block;     /* 32-bit Port address of Power Mgt Timer Ctrl Reg Blk */
+        u32 pm_timer_block;     /* 32-bit port address of Power Mgt Timer Ctrl Reg Blk */
-        u32 gpe0_block;         /* 32-bit Port address of General Purpose Event 0 Reg Blk */
+        u32 gpe0_block;         /* 32-bit port address of General Purpose Event 0 Reg Blk */
-        u32 gpe1_block;         /* 32-bit Port address of General Purpose Event 1 Reg Blk */
+        u32 gpe1_block;         /* 32-bit port address of General Purpose Event 1 Reg Blk */
        u8 pm1_event_length;    /* Byte Length of ports at pm1x_event_block */
        u8 pm1_control_length;  /* Byte Length of ports at pm1x_control_block */
        u8 pm2_control_length;  /* Byte Length of ports at pm2_control_block */
@@ -229,12 +235,12 @@ struct acpi_table_fadt {
        u8 gpe0_block_length;   /* Byte Length of ports at gpe0_block */
        u8 gpe1_block_length;   /* Byte Length of ports at gpe1_block */
        u8 gpe1_base;           /* Offset in GPE number space where GPE1 events start */
-        u8 cst_control;         /* Support for the _CST object and C States change notification */
+        u8 cst_control;         /* Support for the _CST object and C-States change notification */
        u16 c2_latency;         /* Worst case HW latency to enter/exit C2 state */
        u16 c3_latency;         /* Worst case HW latency to enter/exit C3 state */
-        u16 flush_size;         /* Processor's memory cache line width, in bytes */
+        u16 flush_size;         /* Processor memory cache line width, in bytes */
        u16 flush_stride;       /* Number of flush strides that need to be read */
-        u8 duty_offset;         /* Processor duty cycle index in processor's P_CNT reg */
+        u8 duty_offset;         /* Processor duty cycle index in processor P_CNT reg */
        u8 duty_width;          /* Processor duty cycle value bit width in P_CNT register */
        u8 day_alarm;           /* Index to day-of-month alarm in RTC CMOS RAM */
        u8 month_alarm;         /* Index to month-of-year alarm in RTC CMOS RAM */
@@ -255,11 +261,11 @@ struct acpi_table_fadt {
        struct acpi_generic_address xpm_timer_block;    /* 64-bit Extended Power Mgt Timer Ctrl Reg Blk address */
        struct acpi_generic_address xgpe0_block;        /* 64-bit Extended General Purpose Event 0 Reg Blk address */
        struct acpi_generic_address xgpe1_block;        /* 64-bit Extended General Purpose Event 1 Reg Blk address */
-        struct acpi_generic_address sleep_control;      /* 64-bit Sleep Control register */
+        struct acpi_generic_address sleep_control;      /* 64-bit Sleep Control register (ACPI 5.0) */
-        struct acpi_generic_address sleep_status;       /* 64-bit Sleep Status register */
+        struct acpi_generic_address sleep_status;       /* 64-bit Sleep Status register (ACPI 5.0) */
 };
-/* Masks for FADT Boot Architecture Flags (boot_flags) */
+/* Masks for FADT Boot Architecture Flags (boot_flags) [Vx]=Introduced in this FADT revision */
 #define ACPI_FADT_LEGACY_DEVICES    (1)         /* 00: [V2] System has LPC or ISA bus devices */
 #define ACPI_FADT_8042              (1<<1)      /* 01: [V3] System has an 8042 controller on port 60/64 */
@@ -272,13 +278,13 @@ struct acpi_table_fadt {
 /* Masks for FADT flags */
-#define ACPI_FADT_WBINVD            (1) /* 00: [V1] The wbinvd instruction works properly */
+#define ACPI_FADT_WBINVD            (1) /* 00: [V1] The WBINVD instruction works properly */
-#define ACPI_FADT_WBINVD_FLUSH      (1<<1)      /* 01: [V1] wbinvd flushes but does not invalidate caches */
+#define ACPI_FADT_WBINVD_FLUSH      (1<<1)      /* 01: [V1] WBINVD flushes but does not invalidate caches */
 #define ACPI_FADT_C1_SUPPORTED      (1<<2)      /* 02: [V1] All processors support C1 state */
 #define ACPI_FADT_C2_MP_SUPPORTED   (1<<3)      /* 03: [V1] C2 state works on MP system */
 #define ACPI_FADT_POWER_BUTTON      (1<<4)      /* 04: [V1] Power button is handled as a control method device */
 #define ACPI_FADT_SLEEP_BUTTON      (1<<5)      /* 05: [V1] Sleep button is handled as a control method device */
-#define ACPI_FADT_FIXED_RTC         (1<<6)      /* 06: [V1] RTC wakeup status not in fixed register space */
+#define ACPI_FADT_FIXED_RTC         (1<<6)      /* 06: [V1] RTC wakeup status is not in fixed register space */
 #define ACPI_FADT_S4_RTC_WAKE       (1<<7)      /* 07: [V1] RTC alarm can wake system from S4 */
 #define ACPI_FADT_32BIT_TIMER       (1<<8)      /* 08: [V1] ACPI timer width is 32-bit (0=24-bit) */
 #define ACPI_FADT_DOCKING_SUPPORTED (1<<9)      /* 09: [V1] Docking supported */
@@ -297,7 +303,7 @@ struct acpi_table_fadt {
 /* Values for preferred_profile (Preferred Power Management Profiles) */
-enum acpi_prefered_pm_profiles {
+enum acpi_preferred_pm_profiles {
        PM_UNSPECIFIED = 0,
        PM_DESKTOP = 1,
        PM_MOBILE = 2,
@@ -335,7 +341,7 @@ union acpi_name_union {
 struct acpi_table_desc {
        acpi_physical_address address;
        struct acpi_table_header *pointer;
-        u32 length;             /* Length fixed at 32 bits */
+        u32 length;             /* Length fixed at 32 bits (fixed in table header) */
        union acpi_name_union signature;
        acpi_owner_id owner_id;
        u8 flags;
diff --git a/include/acpi/actbl1.h b/include/acpi/actbl1.h
index 300d14e7c5d5..280fc45b59dd 100644
--- a/include/acpi/actbl1.h
+++ b/include/acpi/actbl1.h
@@ -79,9 +79,15 @@
 #pragma pack(1)
 /*
- * Note about bitfields: The u8 type is used for bitfields in ACPI tables.
+ * Note: C bitfields are not used for this reason:
- * This is the only type that is even remotely portable. Anything else is not
+ *
- * portable, so do not use any other bitfield types.
+ * "Bitfields are great and easy to read, but unfortunately the C language
+ * does not specify the layout of bitfields in memory, which means they are
+ * essentially useless for dealing with packed data in on-disk formats or
+ * binary wire protocols." (Or ACPI tables and buffers.) "If you ask me,
+ * this decision was a design error in C. Ritchie could have picked an order
+ * and stuck with it." Norman Ramsey.
+ * See http://stackoverflow.com/a/1053662/41661
 */
 /*******************************************************************************
@@ -489,7 +495,9 @@ enum acpi_hest_notify_types {
        ACPI_HEST_NOTIFY_LOCAL = 2,
        ACPI_HEST_NOTIFY_SCI = 3,
        ACPI_HEST_NOTIFY_NMI = 4,
-        ACPI_HEST_NOTIFY_RESERVED = 5   /* 5 and greater are reserved */
+        ACPI_HEST_NOTIFY_CMCI = 5,      /* ACPI 5.0 */
+        ACPI_HEST_NOTIFY_MCE = 6,       /* ACPI 5.0 */
+        ACPI_HEST_NOTIFY_RESERVED = 7   /* 7 and greater are reserved */
 };
 /* Values for config_write_enable bitfield above */
diff --git a/include/acpi/actbl2.h b/include/acpi/actbl2.h
index d9ceb3d31629..1b2b356486d1 100644
--- a/include/acpi/actbl2.h
+++ b/include/acpi/actbl2.h
@@ -63,6 +63,8 @@
 */
 #define ACPI_SIG_ASF            "ASF!"  /* Alert Standard Format table */
 #define ACPI_SIG_BOOT           "BOOT"  /* Simple Boot Flag Table */
+#define ACPI_SIG_CSRT           "CSRT"  /* Core System Resource Table */
+#define ACPI_SIG_DBG2           "DBG2"  /* Debug Port table type 2 */
 #define ACPI_SIG_DBGP           "DBGP"  /* Debug Port table */
 #define ACPI_SIG_DMAR           "DMAR"  /* DMA Remapping table */
 #define ACPI_SIG_HPET           "HPET"  /* High Precision Event Timer table */
@@ -96,9 +98,15 @@
 #pragma pack(1)
 /*
- * Note about bitfields: The u8 type is used for bitfields in ACPI tables.
+ * Note: C bitfields are not used for this reason:
- * This is the only type that is even remotely portable. Anything else is not
+ *
- * portable, so do not use any other bitfield types.
+ * "Bitfields are great and easy to read, but unfortunately the C language
+ * does not specify the layout of bitfields in memory, which means they are
+ * essentially useless for dealing with packed data in on-disk formats or
+ * binary wire protocols." (Or ACPI tables and buffers.) "If you ask me,
+ * this decision was a design error in C. Ritchie could have picked an order
+ * and stuck with it." Norman Ramsey.
+ * See http://stackoverflow.com/a/1053662/41661
 */
 /*******************************************************************************
@@ -232,6 +240,115 @@ struct acpi_table_boot {
 /*******************************************************************************
 *
+ * CSRT - Core System Resource Table
+ *        Version 0
+ *
+ * Conforms to the "Core System Resource Table (CSRT)", November 14, 2011
+ *
+ ******************************************************************************/
+struct acpi_table_csrt {
+        struct acpi_table_header header;        /* Common ACPI table header */
+};
+/* Resource Group subtable */
+struct acpi_csrt_group {
+        u32 length;
+        u32 vendor_id;
+        u32 subvendor_id;
+        u16 device_id;
+        u16 subdevice_id;
+        u16 revision;
+        u16 reserved;
+        u32 info_length;
+        /* Shared data (length = info_length) immediately follows */
+};
+/* Resource Descriptor subtable */
+struct acpi_csrt_descriptor {
+        u32 length;
+        u16 type;
+        u16 subtype;
+        u32 uid;
+        /* Resource-specific information immediately follows */
+};
+/* Resource Types */
+#define ACPI_CSRT_TYPE_INTERRUPT    0x0001
+#define ACPI_CSRT_TYPE_TIMER        0x0002
+#define ACPI_CSRT_TYPE_DMA          0x0003
+/* Resource Subtypes */
+#define ACPI_CSRT_XRUPT_LINE        0x0000
+#define ACPI_CSRT_XRUPT_CONTROLLER  0x0001
+#define ACPI_CSRT_TIMER             0x0000
+#define ACPI_CSRT_DMA_CHANNEL       0x0000
+#define ACPI_CSRT_DMA_CONTROLLER    0x0001
+/*******************************************************************************
+ *
+ * DBG2 - Debug Port Table 2
+ *        Version 0 (Both main table and subtables)
+ *
+ * Conforms to "Microsoft Debug Port Table 2 (DBG2)", May 22 2012.
+ *
+ ******************************************************************************/
+struct acpi_table_dbg2 {
+        struct acpi_table_header header;        /* Common ACPI table header */
+        u32 info_offset;
+        u32 info_count;
+};
+/* Debug Device Information Subtable */
+struct acpi_dbg2_device {
+        u8 revision;
+        u16 length;
+        u8 register_count;      /* Number of base_address registers */
+        u16 namepath_length;
+        u16 namepath_offset;
+        u16 oem_data_length;
+        u16 oem_data_offset;
+        u16 port_type;
+        u16 port_subtype;
+        u16 reserved;
+        u16 base_address_offset;
+        u16 address_size_offset;
+        /*
+         * Data that follows:
+         *    base_address (required) - Each in 12-byte Generic Address Structure format.
+         *    address_size (required) - Array of u32 sizes corresponding to each base_address register.
+         *    Namepath    (required) - Null terminated string. Single dot if not supported.
+         *    oem_data    (optional) - Length is oem_data_length.
+         */
+};
+/* Types for port_type field above */
+#define ACPI_DBG2_SERIAL_PORT       0x8000
+#define ACPI_DBG2_1394_PORT         0x8001
+#define ACPI_DBG2_USB_PORT          0x8002
+#define ACPI_DBG2_NET_PORT          0x8003
+/* Subtypes for port_subtype field above */
+#define ACPI_DBG2_16550_COMPATIBLE  0x0000
+#define ACPI_DBG2_16550_SUBSET      0x0001
+#define ACPI_DBG2_1394_STANDARD     0x0000
+#define ACPI_DBG2_USB_XHCI          0x0000
+#define ACPI_DBG2_USB_EHCI          0x0001
+/*******************************************************************************
+ *
 * DBGP - Debug Port table
 *        Version 1
 *
diff --git a/include/acpi/actbl3.h b/include/acpi/actbl3.h
index f65a0ed869eb..8c61b5fe42a4 100644
--- a/include/acpi/actbl3.h
+++ b/include/acpi/actbl3.h
@@ -75,7 +75,6 @@
 /* Reserved table signatures */
 #define ACPI_SIG_CSRT           "CSRT"  /* Core System Resources Table */
-#define ACPI_SIG_DBG2           "DBG2"  /* Debug Port table 2 */
 #define ACPI_SIG_MATR           "MATR"  /* Memory Address Translation Table */
 #define ACPI_SIG_MSDM           "MSDM"  /* Microsoft Data Management Table */
 #define ACPI_SIG_WPBT           "WPBT"  /* Windows Platform Binary Table */
@@ -87,9 +86,15 @@
 #pragma pack(1)
 /*
- * Note about bitfields: The u8 type is used for bitfields in ACPI tables.
+ * Note: C bitfields are not used for this reason:
- * This is the only type that is even remotely portable. Anything else is not
+ *
- * portable, so do not use any other bitfield types.
+ * "Bitfields are great and easy to read, but unfortunately the C language
+ * does not specify the layout of bitfields in memory, which means they are
+ * essentially useless for dealing with packed data in on-disk formats or
+ * binary wire protocols." (Or ACPI tables and buffers.) "If you ask me,
+ * this decision was a design error in C. Ritchie could have picked an order
+ * and stuck with it." Norman Ramsey.
+ * See http://stackoverflow.com/a/1053662/41661
 */
 /*******************************************************************************
diff --git a/include/acpi/actypes.h b/include/acpi/actypes.h
index 3d00bd5bd7e3..a85bae968262 100644
--- a/include/acpi/actypes.h
+++ b/include/acpi/actypes.h
@@ -519,13 +519,6 @@ typedef u64 acpi_integer;
 #define ACPI_SLEEP_TYPE_INVALID         0xFF
 /*
- * Sleep/Wake flags
- */
-#define ACPI_NO_OPTIONAL_METHODS        0x00    /* Do not execute any optional methods */
-#define ACPI_EXECUTE_GTS                0x01    /* For enter sleep interface */
-#define ACPI_EXECUTE_BFS                0x02    /* For leave sleep prep interface */
-/*
 * Standard notify values
 */
 #define ACPI_NOTIFY_BUS_CHECK           (u8) 0x00
diff --git a/include/asm-generic/unistd.h b/include/asm-generic/unistd.h
index 991ef01cd77e..3748ec92dcbc 100644
--- a/include/asm-generic/unistd.h
+++ b/include/asm-generic/unistd.h
@@ -691,9 +691,11 @@ __SC_COMP(__NR_process_vm_readv, sys_process_vm_readv, \
 #define __NR_process_vm_writev 271
 __SC_COMP(__NR_process_vm_writev, sys_process_vm_writev, \
          compat_sys_process_vm_writev)
+#define __NR_kcmp 272
+__SYSCALL(__NR_kcmp, sys_kcmp)
 #undef __NR_syscalls
-#define __NR_syscalls 272
+#define __NR_syscalls 273
 /*
 * All syscalls below here should go away really,
diff --git a/include/linux/iommu.h b/include/linux/iommu.h
index 7e83370e6fd2..f3b99e1c1042 100644
--- a/include/linux/iommu.h
+++ b/include/linux/iommu.h
@@ -256,72 +256,78 @@ static inline void iommu_set_fault_handler(struct iommu_domain *domain,
 {
 }
-int iommu_attach_group(struct iommu_domain *domain, struct iommu_group *group)
+static inline int iommu_attach_group(struct iommu_domain *domain,
+                                     struct iommu_group *group)
 {
        return -ENODEV;
 }
-void iommu_detach_group(struct iommu_domain *domain, struct iommu_group *group)
+static inline void iommu_detach_group(struct iommu_domain *domain,
+                                      struct iommu_group *group)
 {
 }
-struct iommu_group *iommu_group_alloc(void)
+static inline struct iommu_group *iommu_group_alloc(void)
 {
        return ERR_PTR(-ENODEV);
 }
-void *iommu_group_get_iommudata(struct iommu_group *group)
+static inline void *iommu_group_get_iommudata(struct iommu_group *group)
 {
        return NULL;
 }
-void iommu_group_set_iommudata(struct iommu_group *group, void *iommu_data,
+static inline void iommu_group_set_iommudata(struct iommu_group *group,
-                               void (*release)(void *iommu_data))
+                                             void *iommu_data,
+                                             void (*release)(void *iommu_data))
 {
 }
-int iommu_group_set_name(struct iommu_group *group, const char *name)
+static inline int iommu_group_set_name(struct iommu_group *group,
+                                       const char *name)
 {
        return -ENODEV;
 }
-int iommu_group_add_device(struct iommu_group *group, struct device *dev)
+static inline int iommu_group_add_device(struct iommu_group *group,
+                                         struct device *dev)
 {
        return -ENODEV;
 }
-void iommu_group_remove_device(struct device *dev)
+static inline void iommu_group_remove_device(struct device *dev)
 {
 }
-int iommu_group_for_each_dev(struct iommu_group *group, void *data,
+static inline int iommu_group_for_each_dev(struct iommu_group *group,
-                             int (*fn)(struct device *, void *))
+                                           void *data,
+                                           int (*fn)(struct device *, void *))
 {
        return -ENODEV;
 }
-struct iommu_group *iommu_group_get(struct device *dev)
+static inline struct iommu_group *iommu_group_get(struct device *dev)
 {
        return NULL;
 }
-void iommu_group_put(struct iommu_group *group)
+static inline void iommu_group_put(struct iommu_group *group)
 {
 }
-int iommu_group_register_notifier(struct iommu_group *group,
+static inline int iommu_group_register_notifier(struct iommu_group *group,
-                                  struct notifier_block *nb)
+                                                struct notifier_block *nb)
 {
        return -ENODEV;
 }
-int iommu_group_unregister_notifier(struct iommu_group *group,
+static inline int iommu_group_unregister_notifier(struct iommu_group *group,
-                                    struct notifier_block *nb)
+                                                  struct notifier_block *nb)
 {
        return 0;
 }
-int iommu_group_id(struct iommu_group *group)
+static inline int iommu_group_id(struct iommu_group *group)
 {
        return -ENODEV;
 }
diff --git a/include/linux/micrel_phy.h b/include/linux/micrel_phy.h
index 61f0905bdc48..de201203bc7c 100644
--- a/include/linux/micrel_phy.h
+++ b/include/linux/micrel_phy.h
@@ -1,3 +1,15 @@
+/*
+ * include/linux/micrel_phy.h
+ *
+ * Micrel PHY IDs
+ *
+ * This program is free software; you can redistribute  it and/or modify it
+ * under  the terms of  the GNU General  Public License as published by the
+ * Free Software Foundation;  either version 2 of the  License, or (at your
+ * option) any later version.
+ *
+ */
 #ifndef _MICREL_PHY_H
 #define _MICREL_PHY_H
@@ -5,10 +17,11 @@
 #define PHY_ID_KSZ9021          0x00221610
 #define PHY_ID_KS8737           0x00221720
-#define PHY_ID_KS8041           0x00221510
+#define PHY_ID_KSZ8021          0x00221555
-#define PHY_ID_KS8051           0x00221550
+#define PHY_ID_KSZ8041          0x00221510
+#define PHY_ID_KSZ8051          0x00221550
 /* both for ks8001 Rev. A/B, and for ks8721 Rev 3. */
-#define PHY_ID_KS8001           0x0022161A
+#define PHY_ID_KSZ8001          0x0022161A
 /* struct phy_device dev_flags definitions */
 #define MICREL_PHY_50MHZ_CLK    0x00000001
diff --git a/include/linux/nvme.h b/include/linux/nvme.h
index 9490a00529f4..c25cccaa555a 100644
--- a/include/linux/nvme.h
+++ b/include/linux/nvme.h
@@ -35,8 +35,10 @@ struct nvme_bar {
        __u64                   acq;    /* Admin CQ Base Address */
 };
+#define NVME_CAP_MQES(cap)      ((cap) & 0xffff)
 #define NVME_CAP_TIMEOUT(cap)   (((cap) >> 24) & 0xff)
 #define NVME_CAP_STRIDE(cap)    (((cap) >> 32) & 0xf)
+#define NVME_CAP_MPSMIN(cap)    (((cap) >> 48) & 0xf)
 enum {
        NVME_CC_ENABLE          = 1 << 0,
diff --git a/include/linux/security.h b/include/linux/security.h
index 3dea6a9d568f..d143b8e01954 100644
--- a/include/linux/security.h
+++ b/include/linux/security.h
@@ -118,6 +118,7 @@ void reset_security_ops(void);
 extern unsigned long mmap_min_addr;
 extern unsigned long dac_mmap_min_addr;
 #else
+#define mmap_min_addr           0UL
 #define dac_mmap_min_addr       0UL
 #endif
diff --git a/lib/flex_proportions.c b/lib/flex_proportions.c
index c785554f9523..ebf3bac460b0 100644
--- a/lib/flex_proportions.c
+++ b/lib/flex_proportions.c
@@ -62,7 +62,7 @@ void fprop_global_destroy(struct fprop_global *p)
 */
 bool fprop_new_period(struct fprop_global *p, int periods)
 {
-        u64 events;
+        s64 events;
        unsigned long flags;
        local_irq_save(flags);
diff --git a/mm/huge_memory.c b/mm/huge_memory.c
index 57c4b9309015..141dbb695097 100644
--- a/mm/huge_memory.c
+++ b/mm/huge_memory.c
@@ -1811,7 +1811,6 @@ static void __collapse_huge_page_copy(pte_t *pte, struct page *page,
                        src_page = pte_page(pteval);
                        copy_user_highpage(page, src_page, address, vma);
                        VM_BUG_ON(page_mapcount(src_page) != 1);
-                        VM_BUG_ON(page_count(src_page) != 2);
                        release_pte_page(src_page);
                        /*
                         * ptl mostly unnecessary, but preempt has to
diff --git a/net/batman-adv/bat_iv_ogm.c b/net/batman-adv/bat_iv_ogm.c
index e877af8bdd1e..469daabd90c7 100644
--- a/net/batman-adv/bat_iv_ogm.c
+++ b/net/batman-adv/bat_iv_ogm.c
@@ -642,7 +642,8 @@ batadv_iv_ogm_orig_update(struct batadv_priv *bat_priv,
        struct batadv_neigh_node *router = NULL;
        struct batadv_orig_node *orig_node_tmp;
        struct hlist_node *node;
-        uint8_t bcast_own_sum_orig, bcast_own_sum_neigh;
+        int if_num;
+        uint8_t sum_orig, sum_neigh;
        uint8_t *neigh_addr;
        batadv_dbg(BATADV_DBG_BATMAN, bat_priv,
@@ -727,17 +728,17 @@ batadv_iv_ogm_orig_update(struct batadv_priv *bat_priv,
        if (router && (neigh_node->tq_avg == router->tq_avg)) {
                orig_node_tmp = router->orig_node;
                spin_lock_bh(&orig_node_tmp->ogm_cnt_lock);
-                bcast_own_sum_orig =
+                if_num = router->if_incoming->if_num;
-                        orig_node_tmp->bcast_own_sum[if_incoming->if_num];
+                sum_orig = orig_node_tmp->bcast_own_sum[if_num];
                spin_unlock_bh(&orig_node_tmp->ogm_cnt_lock);
                orig_node_tmp = neigh_node->orig_node;
                spin_lock_bh(&orig_node_tmp->ogm_cnt_lock);
-                bcast_own_sum_neigh =
+                if_num = neigh_node->if_incoming->if_num;
-                        orig_node_tmp->bcast_own_sum[if_incoming->if_num];
+                sum_neigh = orig_node_tmp->bcast_own_sum[if_num];
                spin_unlock_bh(&orig_node_tmp->ogm_cnt_lock);
-                if (bcast_own_sum_orig >= bcast_own_sum_neigh)
+                if (sum_orig >= sum_neigh)
                        goto update_tt;
        }
diff --git a/net/batman-adv/soft-interface.c b/net/batman-adv/soft-interface.c
index 109ea2aae96c..21c53577c8d6 100644
--- a/net/batman-adv/soft-interface.c
+++ b/net/batman-adv/soft-interface.c
@@ -100,18 +100,21 @@ static int batadv_interface_set_mac_addr(struct net_device *dev, void *p)
 {
        struct batadv_priv *bat_priv = netdev_priv(dev);
        struct sockaddr *addr = p;
+        uint8_t old_addr[ETH_ALEN];
        if (!is_valid_ether_addr(addr->sa_data))
                return -EADDRNOTAVAIL;
+        memcpy(old_addr, dev->dev_addr, ETH_ALEN);
+        memcpy(dev->dev_addr, addr->sa_data, ETH_ALEN);
        /* only modify transtable if it has been initialized before */
        if (atomic_read(&bat_priv->mesh_state) == BATADV_MESH_ACTIVE) {
-                batadv_tt_local_remove(bat_priv, dev->dev_addr,
+                batadv_tt_local_remove(bat_priv, old_addr,
                                       "mac address changed", false);
                batadv_tt_local_add(dev, addr->sa_data, BATADV_NULL_IFINDEX);
        }
-        memcpy(dev->dev_addr, addr->sa_data, ETH_ALEN);
        dev->addr_assign_type &= ~NET_ADDR_RANDOM;
        return 0;
 }
diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index d4de5db18d5a..0b997c8f9655 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -734,6 +734,8 @@ static int hci_dev_do_close(struct hci_dev *hdev)
        cancel_work_sync(&hdev->le_scan);
+        cancel_delayed_work(&hdev->power_off);
        hci_req_cancel(hdev, ENODEV);
        hci_req_lock(hdev);
diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
index 4ea1710a4783..38c00f142203 100644
--- a/net/bluetooth/l2cap_core.c
+++ b/net/bluetooth/l2cap_core.c
@@ -1008,7 +1008,7 @@ static void l2cap_send_disconn_req(struct l2cap_conn *conn, struct l2cap_chan *c
        if (!conn)
                return;
-        if (chan->mode == L2CAP_MODE_ERTM) {
+        if (chan->mode == L2CAP_MODE_ERTM && chan->state == BT_CONNECTED) {
                __clear_retrans_timer(chan);
                __clear_monitor_timer(chan);
                __clear_ack_timer(chan);
diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index ad6613d17ca6..eba022de3c20 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -2875,6 +2875,22 @@ int mgmt_powered(struct hci_dev *hdev, u8 powered)
                if (scan)
                        hci_send_cmd(hdev, HCI_OP_WRITE_SCAN_ENABLE, 1, &scan);
+                if (test_bit(HCI_SSP_ENABLED, &hdev->dev_flags)) {
+                        u8 ssp = 1;
+                        hci_send_cmd(hdev, HCI_OP_WRITE_SSP_MODE, 1, &ssp);
+                }
+                if (test_bit(HCI_LE_ENABLED, &hdev->dev_flags)) {
+                        struct hci_cp_write_le_host_supported cp;
+                        cp.le = 1;
+                        cp.simul = !!(hdev->features[6] & LMP_SIMUL_LE_BR);
+                        hci_send_cmd(hdev, HCI_OP_WRITE_LE_HOST_SUPPORTED,
+                                     sizeof(cp), &cp);
+                }
                update_class(hdev);
                update_name(hdev, hdev->dev_name);
                update_eir(hdev);
diff --git a/net/ceph/messenger.c b/net/ceph/messenger.c
index 24c5eea8c45b..159aa8bef9e7 100644
--- a/net/ceph/messenger.c
+++ b/net/ceph/messenger.c
@@ -1073,16 +1073,13 @@ static int write_partial_msg_pages(struct ceph_connection *con)
                        BUG_ON(kaddr == NULL);
                        base = kaddr + con->out_msg_pos.page_pos + bio_offset;
                        crc = crc32c(crc, base, len);
+                        kunmap(page);
                        msg->footer.data_crc = cpu_to_le32(crc);
                        con->out_msg_pos.did_page_crc = true;
                }
                ret = ceph_tcp_sendpage(con->sock, page,
                                      con->out_msg_pos.page_pos + bio_offset,
                                      len, 1);
-                if (do_datacrc)
-                        kunmap(page);
                if (ret <= 0)
                        goto out;
diff --git a/net/core/sock.c b/net/core/sock.c
index 305792076121..a6000fbad294 100644
--- a/net/core/sock.c
+++ b/net/core/sock.c
@@ -691,7 +691,8 @@ set_rcvbuf:
        case SO_KEEPALIVE:
 #ifdef CONFIG_INET
-                if (sk->sk_protocol == IPPROTO_TCP)
+                if (sk->sk_protocol == IPPROTO_TCP &&
+                    sk->sk_type == SOCK_STREAM)
                        tcp_set_keepalive(sk, valbool);
 #endif
                sock_valbool_flag(sk, SOCK_KEEPOPEN, valbool);
diff --git a/net/ipv4/inetpeer.c b/net/ipv4/inetpeer.c
index e1e0a4e8fd34..c7527f6b9ad9 100644
--- a/net/ipv4/inetpeer.c
+++ b/net/ipv4/inetpeer.c
@@ -510,7 +510,10 @@ relookup:
                                        secure_ipv6_id(daddr->addr.a6));
                p->metrics[RTAX_LOCK-1] = INETPEER_METRICS_NEW;
                p->rate_tokens = 0;
-                p->rate_last = 0;
+                /* 60*HZ is arbitrary, but chosen enough high so that the first
+                 * calculation of tokens is at its maximum.
+                 */
+                p->rate_last = jiffies - 60*HZ;
                INIT_LIST_HEAD(&p->gc_list);
                /* Link the node. */
diff --git a/net/ipv4/raw.c b/net/ipv4/raw.c
index ff0f071969ea..d23c6571ba1c 100644
--- a/net/ipv4/raw.c
+++ b/net/ipv4/raw.c
@@ -131,18 +131,20 @@ found:
 *      0 - deliver
 *      1 - block
 */
-static __inline__ int icmp_filter(struct sock *sk, struct sk_buff *skb)
+static int icmp_filter(const struct sock *sk, const struct sk_buff *skb)
 {
-        int type;
+        struct icmphdr _hdr;
+        const struct icmphdr *hdr;
-        if (!pskb_may_pull(skb, sizeof(struct icmphdr)))
+        hdr = skb_header_pointer(skb, skb_transport_offset(skb),
+                                 sizeof(_hdr), &_hdr);
+        if (!hdr)
                return 1;
-        type = icmp_hdr(skb)->type;
+        if (hdr->type < 32) {
-        if (type < 32) {
                __u32 data = raw_sk(sk)->filter.data;
-                return ((1 << type) & data) != 0;
+                return ((1U << hdr->type) & data) != 0;
        }
        /* Do not block unknown ICMP types */
diff --git a/net/ipv6/mip6.c b/net/ipv6/mip6.c
index 5b087c31d87b..0f9bdc5ee9f3 100644
--- a/net/ipv6/mip6.c
+++ b/net/ipv6/mip6.c
@@ -86,28 +86,30 @@ static int mip6_mh_len(int type)
 static int mip6_mh_filter(struct sock *sk, struct sk_buff *skb)
 {
-        struct ip6_mh *mh;
+        struct ip6_mh _hdr;
+        const struct ip6_mh *mh;
-        if (!pskb_may_pull(skb, (skb_transport_offset(skb)) + 8) ||
+        mh = skb_header_pointer(skb, skb_transport_offset(skb),
-            !pskb_may_pull(skb, (skb_transport_offset(skb) +
+                                sizeof(_hdr), &_hdr);
-                                 ((skb_transport_header(skb)[1] + 1) << 3))))
+        if (!mh)
                return -1;
-        mh = (struct ip6_mh *)skb_transport_header(skb);
+        if (((mh->ip6mh_hdrlen + 1) << 3) > skb->len)
+                return -1;
        if (mh->ip6mh_hdrlen < mip6_mh_len(mh->ip6mh_type)) {
                LIMIT_NETDEBUG(KERN_DEBUG "mip6: MH message too short: %d vs >=%d\n",
                               mh->ip6mh_hdrlen, mip6_mh_len(mh->ip6mh_type));
-                mip6_param_prob(skb, 0, ((&mh->ip6mh_hdrlen) -
+                mip6_param_prob(skb, 0, offsetof(struct ip6_mh, ip6mh_hdrlen) +
-                                         skb_network_header(skb)));
+                                skb_network_header_len(skb));
                return -1;
        }
        if (mh->ip6mh_proto != IPPROTO_NONE) {
                LIMIT_NETDEBUG(KERN_DEBUG "mip6: MH invalid payload proto = %d\n",
                               mh->ip6mh_proto);
-                mip6_param_prob(skb, 0, ((&mh->ip6mh_proto) -
+                mip6_param_prob(skb, 0, offsetof(struct ip6_mh, ip6mh_proto) +
-                                         skb_network_header(skb)));
+                                skb_network_header_len(skb));
                return -1;
        }
diff --git a/net/ipv6/raw.c b/net/ipv6/raw.c
index ef0579d5bca6..4a5f78b50495 100644
--- a/net/ipv6/raw.c
+++ b/net/ipv6/raw.c
@@ -107,21 +107,20 @@ found:
 *      0 - deliver
 *      1 - block
 */
-static __inline__ int icmpv6_filter(struct sock *sk, struct sk_buff *skb)
+static int icmpv6_filter(const struct sock *sk, const struct sk_buff *skb)
 {
-        struct icmp6hdr *icmph;
+        struct icmp6hdr *_hdr;
-        struct raw6_sock *rp = raw6_sk(sk);
+        const struct icmp6hdr *hdr;
-        if (pskb_may_pull(skb, sizeof(struct icmp6hdr))) {
-                __u32 *data = &rp->filter.data[0];
-                int bit_nr;
-                icmph = (struct icmp6hdr *) skb->data;
+        hdr = skb_header_pointer(skb, skb_transport_offset(skb),
-                bit_nr = icmph->icmp6_type;
+                                 sizeof(_hdr), &_hdr);
+        if (hdr) {
+                const __u32 *data = &raw6_sk(sk)->filter.data[0];
+                unsigned int type = hdr->icmp6_type;
-                return (data[bit_nr >> 5] & (1 << (bit_nr & 31))) != 0;
+                return (data[type >> 5] & (1U << (type & 31))) != 0;
        }
-        return 0;
+        return 1;
 }
 #if defined(CONFIG_IPV6_MIP6) || defined(CONFIG_IPV6_MIP6_MODULE)
diff --git a/net/l2tp/l2tp_netlink.c b/net/l2tp/l2tp_netlink.c
index d71cd9229a47..6f936358d664 100644
--- a/net/l2tp/l2tp_netlink.c
+++ b/net/l2tp/l2tp_netlink.c
@@ -80,8 +80,8 @@ static int l2tp_nl_cmd_noop(struct sk_buff *skb, struct genl_info *info)
        hdr = genlmsg_put(msg, info->snd_pid, info->snd_seq,
                          &l2tp_nl_family, 0, L2TP_CMD_NOOP);
-        if (IS_ERR(hdr)) {
+        if (!hdr) {
-                ret = PTR_ERR(hdr);
+                ret = -EMSGSIZE;
                goto err_out;
        }
@@ -250,8 +250,8 @@ static int l2tp_nl_tunnel_send(struct sk_buff *skb, u32 pid, u32 seq, int flags,
        hdr = genlmsg_put(skb, pid, seq, &l2tp_nl_family, flags,
                          L2TP_CMD_TUNNEL_GET);
-        if (IS_ERR(hdr))
+        if (!hdr)
-                return PTR_ERR(hdr);
+                return -EMSGSIZE;
        if (nla_put_u8(skb, L2TP_ATTR_PROTO_VERSION, tunnel->version) ||
            nla_put_u32(skb, L2TP_ATTR_CONN_ID, tunnel->tunnel_id) ||
@@ -617,8 +617,8 @@ static int l2tp_nl_session_send(struct sk_buff *skb, u32 pid, u32 seq, int flags
        sk = tunnel->sock;
        hdr = genlmsg_put(skb, pid, seq, &l2tp_nl_family, flags, L2TP_CMD_SESSION_GET);
-        if (IS_ERR(hdr))
+        if (!hdr)
-                return PTR_ERR(hdr);
+                return -EMSGSIZE;
        if (nla_put_u32(skb, L2TP_ATTR_CONN_ID, tunnel->tunnel_id) ||
            nla_put_u32(skb, L2TP_ATTR_SESSION_ID, session->session_id) ||
diff --git a/net/netfilter/xt_limit.c b/net/netfilter/xt_limit.c
index 5c22ce8ab309..a4c1e4528cac 100644
--- a/net/netfilter/xt_limit.c
+++ b/net/netfilter/xt_limit.c
@@ -117,11 +117,11 @@ static int limit_mt_check(const struct xt_mtchk_param *par)
        /* For SMP, we only want to use one set of state. */
        r->master = priv;
+        /* User avg in seconds * XT_LIMIT_SCALE: convert to jiffies *
+           128. */
+        priv->prev = jiffies;
+        priv->credit = user2credits(r->avg * r->burst); /* Credits full. */
        if (r->cost == 0) {
-                /* User avg in seconds * XT_LIMIT_SCALE: convert to jiffies *
-                   128. */
-                priv->prev = jiffies;
-                priv->credit = user2credits(r->avg * r->burst); /* Credits full. */
                r->credit_cap = priv->credit; /* Credits full. */
                r->cost = user2credits(r->avg);
        }
diff --git a/net/wireless/reg.c b/net/wireless/reg.c
index 2ded3c7fad06..72d170ca3406 100644
--- a/net/wireless/reg.c
+++ b/net/wireless/reg.c
@@ -350,6 +350,9 @@ static void reg_regdb_search(struct work_struct *work)
        struct reg_regdb_search_request *request;
        const struct ieee80211_regdomain *curdom, *regdom;
        int i, r;
+        bool set_reg = false;
+        mutex_lock(&cfg80211_mutex);
        mutex_lock(&reg_regdb_search_mutex);
        while (!list_empty(&reg_regdb_search_list)) {
@@ -365,9 +368,7 @@ static void reg_regdb_search(struct work_struct *work)
                                r = reg_copy_regd(&regdom, curdom);
                                if (r)
                                        break;
-                                mutex_lock(&cfg80211_mutex);
+                                set_reg = true;
-                                set_regdom(regdom);
-                                mutex_unlock(&cfg80211_mutex);
                                break;
                        }
                }
@@ -375,6 +376,11 @@ static void reg_regdb_search(struct work_struct *work)
                kfree(request);
        }
        mutex_unlock(&reg_regdb_search_mutex);
+        if (set_reg)
+                set_regdom(regdom);
+        mutex_unlock(&cfg80211_mutex);
 }
 static DECLARE_WORK(reg_regdb_work, reg_regdb_search);
diff --git a/scripts/checksyscalls.sh b/scripts/checksyscalls.sh
index d24810fc6af6..fd8fa9aa7c4e 100755
--- a/scripts/checksyscalls.sh
+++ b/scripts/checksyscalls.sh
@@ -200,7 +200,7 @@ EOF
 syscall_list() {
    grep '^[0-9]' "$1" | sort -n | (
        while read nr abi name entry ; do
-            echo <<EOF
+            cat <<EOF
 #if !defined(__NR_${name}) && !defined(__IGNORE_${name})
 #warning syscall ${name} not implemented
 #endif
diff --git a/sound/soc/codecs/wm2000.c b/sound/soc/codecs/wm2000.c
index 3fd5b29dc933..a3acb7a85f6a 100644
--- a/sound/soc/codecs/wm2000.c
+++ b/sound/soc/codecs/wm2000.c
@@ -702,7 +702,7 @@ static bool wm2000_readable_reg(struct device *dev, unsigned int reg)
 }
 static const struct regmap_config wm2000_regmap = {
-        .reg_bits = 8,
+        .reg_bits = 16,
        .val_bits = 8,
        .max_register = WM2000_REG_IF_CTL,
diff --git a/sound/usb/endpoint.c b/sound/usb/endpoint.c
index d6e2bb49c59c..060dccb9ec75 100644
--- a/sound/usb/endpoint.c
+++ b/sound/usb/endpoint.c
@@ -197,7 +197,13 @@ static void prepare_outbound_urb(struct snd_usb_endpoint *ep,
                        /* no data provider, so send silence */
                        unsigned int offs = 0;
                        for (i = 0; i < ctx->packets; ++i) {
-                                int counts = ctx->packet_size[i];
+                                int counts;
+                                if (ctx->packet_size[i])
+                                        counts = ctx->packet_size[i];
+                                else
+                                        counts = snd_usb_endpoint_next_packet_size(ep);
                                urb->iso_frame_desc[i].offset = offs * ep->stride;
                                urb->iso_frame_desc[i].length = counts * ep->stride;
                                offs += counts;
diff --git a/tools/power/acpi/Makefile b/tools/power/acpi/Makefile
new file mode 100644
index 000000000000..6b9cf7a987c7
--- /dev/null
+++ b/tools/power/acpi/Makefile
@@ -0,0 +1,18 @@
+PROG= acpidump
+SRCS=   acpidump.c
+KERNEL_INCLUDE := ../../../include
+CFLAGS += -Wall -Wstrict-prototypes -Wdeclaration-after-statement -Os -s -D_LINUX -DDEFINE_ALTERNATE_TYPES -I$(KERNEL_INCLUDE) 
+all: acpidump
+$(PROG) : $(SRCS)
+        $(CC) $(CFLAGS) $(SRCS) -o $(PROG)
+CLEANFILES= $(PROG)
+clean : 
+        rm -f $(CLEANFILES) $(patsubst %.c,%.o, $(SRCS)) *~
+install :
+        install acpidump /usr/bin/acpidump
+        install acpidump.8 /usr/share/man/man8
diff --git a/tools/power/acpi/acpidump.8 b/tools/power/acpi/acpidump.8
new file mode 100644
index 000000000000..adfa99166e5e
--- /dev/null
+++ b/tools/power/acpi/acpidump.8
@@ -0,0 +1,59 @@
+.TH ACPIDUMP 8
+.SH NAME
+acpidump \- Dump system's ACPI tables to an ASCII file.
+.SH SYNOPSIS
+.ft B
+.B acpidump > acpidump.out
+.SH DESCRIPTION
+\fBacpidump \fP dumps the systems ACPI tables to an ASCII file
+appropriate for attaching to a bug report.
+Subsequently, they can be processed by utilities in the ACPICA package.
+.SS Options
+no options worth worrying about.
+.PP
+.SH EXAMPLE
+.nf
+# acpidump > acpidump.out
+$ acpixtract -a acpidump.out
+        Acpi table [DSDT] -  15974 bytes written to DSDT.dat
+        Acpi table [FACS] -     64 bytes written to FACS.dat
+        Acpi table [FACP] -    116 bytes written to FACP.dat
+        Acpi table [APIC] -    120 bytes written to APIC.dat
+        Acpi table [MCFG] -     60 bytes written to MCFG.dat
+        Acpi table [SSDT] -    444 bytes written to SSDT1.dat
+        Acpi table [SSDT] -    439 bytes written to SSDT2.dat
+        Acpi table [SSDT] -    439 bytes written to SSDT3.dat
+        Acpi table [SSDT] -    439 bytes written to SSDT4.dat
+        Acpi table [SSDT] -    439 bytes written to SSDT5.dat
+        Acpi table [RSDT] -     76 bytes written to RSDT.dat
+        Acpi table [RSDP] -     20 bytes written to RSDP.dat
+$ iasl -d *.dat
+...
+.fi
+creates *.dsl, a human readable form which can be edited
+and compiled using iasl.
+.SH NOTES
+.B "acpidump "
+must be run as root.
+.SH REFERENCES
+ACPICA: https://acpica.org/
+.SH FILES
+.ta
+.nf
+/dev/mem
+/sys/firmware/acpi/tables/dynamic/*
+.fi
+.PP
+.SH AUTHOR
+.nf
+Written by Len Brown <len.brown@intel.com>
diff --git a/tools/power/acpi/acpidump.c b/tools/power/acpi/acpidump.c
new file mode 100644
index 000000000000..07779871421c
--- /dev/null
+++ b/tools/power/acpi/acpidump.c
@@ -0,0 +1,560 @@
+/*
+ * (c) Alexey Starikovskiy, Intel, 2005-2006.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions, and the following disclaimer,
+ *    without modification.
+ * 2. Redistributions in binary form must reproduce at minimum a disclaimer
+ *    substantially similar to the "NO WARRANTY" disclaimer below
+ *    ("Disclaimer") and any redistribution must be conditioned upon
+ *    including a substantially similar Disclaimer requirement for further
+ *    binary redistribution.
+ * 3. Neither the names of the above-listed copyright holders nor the names
+ *    of any contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * NO WARRANTY
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ */
+#ifdef DEFINE_ALTERNATE_TYPES
+/* hack to enable building old application with new headers -lenb */
+#define acpi_fadt_descriptor acpi_table_fadt
+#define acpi_rsdp_descriptor acpi_table_rsdp
+#define DSDT_SIG ACPI_SIG_DSDT
+#define FACS_SIG ACPI_SIG_FACS
+#define FADT_SIG ACPI_SIG_FADT
+#define xfirmware_ctrl Xfacs
+#define firmware_ctrl facs
+typedef int                             s32;
+typedef unsigned char                   u8;
+typedef unsigned short                  u16;
+typedef unsigned int                    u32;
+typedef unsigned long long              u64;
+typedef long long                       s64;
+#endif
+#include <sys/mman.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
+#include <getopt.h>
+#include <sys/types.h>
+#include <dirent.h>
+#include <acpi/acconfig.h>
+#include <acpi/platform/acenv.h>
+#include <acpi/actypes.h>
+#include <acpi/actbl.h>
+static inline u8 checksum(u8 * buffer, u32 length)
+{
+        u8 sum = 0, *i = buffer;
+        buffer += length;
+        for (; i < buffer; sum += *(i++));
+        return sum;
+}
+static unsigned long psz, addr, length;
+static int print, connect, skip;
+static u8 select_sig[4];
+static unsigned long read_efi_systab( void )
+{
+        char buffer[80];
+        unsigned long addr;
+        FILE *f = fopen("/sys/firmware/efi/systab", "r");
+        if (f) {
+                while (fgets(buffer, 80, f)) {
+                        if (sscanf(buffer, "ACPI20=0x%lx", &addr) == 1)
+                                return addr;
+                }
+                fclose(f);
+        }
+        return 0;
+}
+static u8 *acpi_map_memory(unsigned long where, unsigned length)
+{
+        unsigned long offset;
+        u8 *there;
+        int fd = open("/dev/mem", O_RDONLY);
+        if (fd < 0) {
+                fprintf(stderr, "acpi_os_map_memory: cannot open /dev/mem\n");
+                exit(1);
+        }
+        offset = where % psz;
+        there = mmap(NULL, length + offset, PROT_READ, MAP_PRIVATE,
+                         fd, where - offset);
+        close(fd);
+        if (there == MAP_FAILED) return 0;
+        return (there + offset);
+}
+static void acpi_unmap_memory(u8 * there, unsigned length)
+{
+        unsigned long offset = (unsigned long)there % psz;
+        munmap(there - offset, length + offset);
+}
+static struct acpi_table_header *acpi_map_table(unsigned long where, char *sig)
+{
+        unsigned size;
+        struct acpi_table_header *tbl = (struct acpi_table_header *)
+            acpi_map_memory(where, sizeof(struct acpi_table_header));
+        if (!tbl || (sig && memcmp(sig, tbl->signature, 4))) return 0;
+        size = tbl->length;
+        acpi_unmap_memory((u8 *) tbl, sizeof(struct acpi_table_header));
+        return (struct acpi_table_header *)acpi_map_memory(where, size);
+}
+static void acpi_unmap_table(struct acpi_table_header *tbl)
+{
+        acpi_unmap_memory((u8 *)tbl, tbl->length);
+}
+static struct acpi_rsdp_descriptor *acpi_scan_for_rsdp(u8 *begin, u32 length)
+{
+        struct acpi_rsdp_descriptor *rsdp;
+        u8 *i, *end = begin + length;
+        /* Search from given start address for the requested length */
+        for (i = begin; i < end; i += ACPI_RSDP_SCAN_STEP) {
+                /* The signature and checksum must both be correct */
+                if (memcmp((char *)i, "RSD PTR ", 8)) continue;
+                rsdp = (struct acpi_rsdp_descriptor *)i;
+                /* Signature matches, check the appropriate checksum */
+                if (!checksum((u8 *) rsdp, (rsdp->revision < 2) ?
+                              ACPI_RSDP_CHECKSUM_LENGTH :
+                              ACPI_RSDP_XCHECKSUM_LENGTH))
+                        /* Checksum valid, we have found a valid RSDP */
+                        return rsdp;
+        }
+        /* Searched entire block, no RSDP was found */
+        return 0;
+}
+/*
+ * Output data
+ */
+static void acpi_show_data(int fd, u8 * data, int size)
+{
+        char buffer[256];
+        int len;
+        int i, remain = size;
+        while (remain > 0) {
+                len = snprintf(buffer, 256, "  %04x:", size - remain);
+                for (i = 0; i < 16 && i < remain; i++) {
+                        len +=
+                            snprintf(&buffer[len], 256 - len, " %02x", data[i]);
+                }
+                for (; i < 16; i++) {
+                        len += snprintf(&buffer[len], 256 - len, "   ");
+                }
+                len += snprintf(&buffer[len], 256 - len, "  ");
+                for (i = 0; i < 16 && i < remain; i++) {
+                        buffer[len++] = (isprint(data[i])) ? data[i] : '.';
+                }
+                buffer[len++] = '\n';
+                write(fd, buffer, len);
+                data += 16;
+                remain -= 16;
+        }
+}
+/*
+ * Output ACPI table
+ */
+static void acpi_show_table(int fd, struct acpi_table_header *table, unsigned long addr)
+{
+        char buff[80];
+        int len = snprintf(buff, 80, "%.4s @ %p\n", table->signature, (void *)addr);
+        write(fd, buff, len);
+        acpi_show_data(fd, (u8 *) table, table->length);
+        buff[0] = '\n';
+        write(fd, buff, 1);
+}
+static void write_table(int fd, struct acpi_table_header *tbl, unsigned long addr)
+{
+        static int select_done = 0;
+        if (!select_sig[0]) {
+                if (print) {
+                        acpi_show_table(fd, tbl, addr);
+                } else {
+                        write(fd, tbl, tbl->length);
+                }
+        } else if (!select_done && !memcmp(select_sig, tbl->signature, 4)) {
+                if (skip > 0) {
+                        --skip;
+                        return;
+                }
+                if (print) {
+                        acpi_show_table(fd, tbl, addr);
+                } else {
+                        write(fd, tbl, tbl->length);
+                }
+                select_done = 1;
+        }
+}
+static void acpi_dump_FADT(int fd, struct acpi_table_header *tbl, unsigned long xaddr) {
+        struct acpi_fadt_descriptor x;
+        unsigned long addr;
+        size_t len = sizeof(struct acpi_fadt_descriptor);
+        if (len > tbl->length) len = tbl->length;
+        memcpy(&x, tbl, len);
+        x.header.length = len;
+        if (checksum((u8 *)tbl, len)) {
+                fprintf(stderr, "Wrong checksum for FADT!\n");
+        }
+        if (x.header.length >= 148 && x.Xdsdt) {
+                addr = (unsigned long)x.Xdsdt;
+                if (connect) {
+                        x.Xdsdt = lseek(fd, 0, SEEK_CUR);
+                }
+        } else if (x.header.length >= 44 && x.dsdt) {
+                addr = (unsigned long)x.dsdt;
+                if (connect) {
+                        x.dsdt = lseek(fd, 0, SEEK_CUR);
+                }
+        } else {
+                fprintf(stderr, "No DSDT in FADT!\n");
+                goto no_dsdt;
+        }
+        tbl = acpi_map_table(addr, DSDT_SIG);
+        if (!tbl) goto no_dsdt;
+        if (checksum((u8 *)tbl, tbl->length))
+                fprintf(stderr, "Wrong checksum for DSDT!\n");
+        write_table(fd, tbl, addr);
+        acpi_unmap_table(tbl);
+no_dsdt:
+        if (x.header.length >= 140 && x.xfirmware_ctrl) {
+                addr = (unsigned long)x.xfirmware_ctrl;
+                if (connect) {
+                        x.xfirmware_ctrl = lseek(fd, 0, SEEK_CUR);
+                }
+        } else if (x.header.length >= 40 && x.firmware_ctrl) {
+                addr = (unsigned long)x.firmware_ctrl;
+                if (connect) {
+                        x.firmware_ctrl = lseek(fd, 0, SEEK_CUR);
+                }
+        } else {
+                fprintf(stderr, "No FACS in FADT!\n");
+                goto no_facs;
+        }
+        tbl = acpi_map_table(addr, FACS_SIG);
+        if (!tbl) goto no_facs;
+        /* do not checksum FACS */
+        write_table(fd, tbl, addr);
+        acpi_unmap_table(tbl);
+no_facs:
+        write_table(fd, (struct acpi_table_header *)&x, xaddr);
+}
+static int acpi_dump_SDT(int fd, struct acpi_rsdp_descriptor *rsdp)
+{
+        struct acpi_table_header *sdt, *tbl = 0;
+        int xsdt = 1, i, num;
+        char *offset;
+        unsigned long addr;
+        if (rsdp->revision > 1 && rsdp->xsdt_physical_address) {
+                tbl = acpi_map_table(rsdp->xsdt_physical_address, "XSDT");
+        }
+        if (!tbl && rsdp->rsdt_physical_address) {
+                xsdt = 0;
+                tbl = acpi_map_table(rsdp->rsdt_physical_address, "RSDT");
+        }
+        if (!tbl) return 0;
+        sdt = malloc(tbl->length);
+        memcpy(sdt, tbl, tbl->length);
+        acpi_unmap_table(tbl);
+        if (checksum((u8 *)sdt, sdt->length))
+                fprintf(stderr, "Wrong checksum for %s!\n", (xsdt)?"XSDT":"RSDT");
+        num = (sdt->length - sizeof(struct acpi_table_header))/((xsdt)?sizeof(u64):sizeof(u32));
+        offset = (char *)sdt + sizeof(struct acpi_table_header);
+        for (i = 0; i < num; ++i, offset += ((xsdt) ? sizeof(u64) : sizeof(u32))) {
+                addr = (xsdt) ? (unsigned long)(*(u64 *)offset):
+                                (unsigned long)(*(u32 *)offset);
+                if (!addr) continue;
+                tbl = acpi_map_table(addr, 0);
+                if (!tbl) continue;
+                if (!memcmp(tbl->signature, FADT_SIG, 4)) {
+                        acpi_dump_FADT(fd, tbl, addr);
+                } else {
+                        if (checksum((u8 *)tbl, tbl->length))
+                                fprintf(stderr, "Wrong checksum for generic table!\n");
+                        write_table(fd, tbl, addr);
+                }
+                acpi_unmap_table(tbl);
+                if (connect) {
+                        if (xsdt)
+                                (*(u64*)offset) = lseek(fd, 0, SEEK_CUR);
+                        else
+                                (*(u32*)offset) = lseek(fd, 0, SEEK_CUR);
+                }
+        }
+        if (xsdt) {
+                addr = (unsigned long)rsdp->xsdt_physical_address;
+                if (connect) {
+                        rsdp->xsdt_physical_address = lseek(fd, 0, SEEK_CUR);
+                }
+        } else {
+                addr = (unsigned long)rsdp->rsdt_physical_address;
+                if (connect) {
+                        rsdp->rsdt_physical_address = lseek(fd, 0, SEEK_CUR);
+                }
+        }
+        write_table(fd, sdt, addr);
+        free (sdt);
+        return 1;
+}
+#define DYNAMIC_SSDT    "/sys/firmware/acpi/tables/dynamic"
+static void acpi_dump_dynamic_SSDT(int fd)
+{
+        struct stat file_stat;
+        char filename[256], *ptr;
+        DIR *tabledir;
+        struct dirent *entry;
+        FILE *fp;
+        int count, readcount, length;
+        struct acpi_table_header table_header, *ptable;
+        if (stat(DYNAMIC_SSDT, &file_stat) == -1) {
+                /* The directory doesn't exist */
+                return;
+        }
+        tabledir = opendir(DYNAMIC_SSDT);
+        if(!tabledir){
+                /*can't open the directory */
+                return;
+         }
+        while ((entry = readdir(tabledir)) != 0){
+                /* skip the file of . /.. */
+                if (entry->d_name[0] == '.')
+                        continue;
+                sprintf(filename, "%s/%s", DYNAMIC_SSDT, entry->d_name);
+                fp = fopen(filename, "r");
+                if (fp == NULL) {
+                        fprintf(stderr, "Can't open the file of %s\n",
+                                                filename);
+                        continue;
+                }
+                /* Read the Table header to parse the table length */
+                count = fread(&table_header, 1, sizeof(struct acpi_table_header), fp);
+                if (count < sizeof(table_header)) {
+                        /* the length is lessn than ACPI table header. skip it */
+                        fclose(fp);
+                        continue;
+                }
+                length = table_header.length;
+                ptr = malloc(table_header.length);
+                fseek(fp, 0, SEEK_SET);
+                readcount = 0;
+                while(!feof(fp) && readcount < length) {
+                        count = fread(ptr + readcount, 1, 256, fp);
+                        readcount += count;
+                }
+                fclose(fp);
+                ptable = (struct acpi_table_header *) ptr;
+                if (checksum((u8 *) ptable, ptable->length))
+                        fprintf(stderr, "Wrong checksum "
+                                        "for dynamic SSDT table!\n");
+                write_table(fd, ptable, 0);
+                free(ptr);
+        }
+        closedir(tabledir);
+        return;
+}
+static void usage(const char *progname)
+{
+        puts("Usage:");
+        printf("%s [--addr 0x1234][--table DSDT][--output filename]"
+                "[--binary][--length 0x456][--help]\n", progname);
+        puts("\t--addr 0x1234 or -a 0x1234 -- look for tables at this physical address");
+        puts("\t--table DSDT or -t DSDT -- only dump table with DSDT signature");
+        puts("\t--output filename or -o filename -- redirect output from stdin to filename");
+        puts("\t--binary or -b -- dump data in binary form rather than in hex-dump format");
+        puts("\t--length 0x456 or -l 0x456 -- works only with --addr, dump physical memory"
+                "\n\t\tregion without trying to understand it's contents");
+        puts("\t--skip 2 or -s 2 -- skip 2 tables of the given name and output only 3rd one");
+        puts("\t--help or -h -- this help message");
+        exit(0);
+}
+static struct option long_options[] = {
+        {"addr", 1, 0, 0},
+        {"table", 1, 0, 0},
+        {"output", 1, 0, 0},
+        {"binary", 0, 0, 0},
+        {"length", 1, 0, 0},
+        {"skip", 1, 0, 0},
+        {"help", 0, 0, 0},
+        {0, 0, 0, 0}
+};
+int main(int argc, char **argv)
+{
+        int option_index, c, fd;
+        u8 *raw;
+        struct acpi_rsdp_descriptor rsdpx, *x = 0;
+        char *filename = 0;
+        char buff[80];
+        memset(select_sig, 0, 4);
+        print = 1;
+        connect = 0;
+        addr = length = 0;
+        skip = 0;
+        while (1) {
+                option_index = 0;
+                c = getopt_long(argc, argv, "a:t:o:bl:s:h",
+                                    long_options, &option_index);
+                if (c == -1)
+                        break;
+                switch (c) {
+                case 0:
+                        switch (option_index) {
+                        case 0:
+                                addr = strtoul(optarg, (char **)NULL, 16);
+                                break;
+                        case 1:
+                                memcpy(select_sig, optarg, 4);
+                                break;
+                        case 2:
+                                filename = optarg;
+                                break;
+                        case 3:
+                                print = 0;
+                                break;
+                        case 4:
+                                length = strtoul(optarg, (char **)NULL, 16);
+                                break;
+                        case 5:
+                                skip = strtoul(optarg, (char **)NULL, 10);
+                                break;
+                        case 6:
+                                usage(argv[0]);
+                                exit(0);
+                        }
+                        break;
+                case 'a':
+                        addr = strtoul(optarg, (char **)NULL, 16);
+                        break;
+                case 't':
+                        memcpy(select_sig, optarg, 4);
+                        break;
+                case 'o':
+                        filename = optarg;
+                        break;
+                case 'b':
+                        print = 0;
+                        break;
+                case 'l':
+                        length = strtoul(optarg, (char **)NULL, 16);
+                        break;
+                case 's':
+                        skip = strtoul(optarg, (char **)NULL, 10);
+                        break;
+                case 'h':
+                        usage(argv[0]);
+                        exit(0);
+                default:
+                        printf("Unknown option!\n");
+                        usage(argv[0]);
+                        exit(0);
+                }
+        }
+        fd = STDOUT_FILENO;
+        if (filename) {
+                fd = creat(filename, S_IRUSR|S_IWUSR|S_IRGRP|S_IROTH);
+                if (fd < 0)
+                        return fd;
+        }
+        if (!select_sig[0] && !print) {
+                connect = 1;
+        }
+        psz = sysconf(_SC_PAGESIZE);
+        if (length && addr) {
+                /* We know length and address, it means we just want a memory dump */
+                if (!(raw = acpi_map_memory(addr, length)))
+                        goto not_found;
+                write(fd, raw, length);
+                acpi_unmap_memory(raw, length);
+                close(fd);
+                return 0;
+        }
+        length = sizeof(struct acpi_rsdp_descriptor);
+        if (!addr) {
+                addr = read_efi_systab();
+                if (!addr) {
+                        addr = ACPI_HI_RSDP_WINDOW_BASE;
+                        length = ACPI_HI_RSDP_WINDOW_SIZE;
+                }
+        }
+        if (!(raw = acpi_map_memory(addr, length)) ||
+            !(x = acpi_scan_for_rsdp(raw, length)))
+                goto not_found;
+        /* Find RSDP and print all found tables */
+        memcpy(&rsdpx, x, sizeof(struct acpi_rsdp_descriptor));
+        acpi_unmap_memory(raw, length);
+        if (connect) {
+                lseek(fd, sizeof(struct acpi_rsdp_descriptor), SEEK_SET);
+        }
+        if (!acpi_dump_SDT(fd, &rsdpx))
+                goto not_found;
+        if (connect) {
+                lseek(fd, 0, SEEK_SET);
+                write(fd, x, (rsdpx.revision < 2) ?
+                        ACPI_RSDP_CHECKSUM_LENGTH : ACPI_RSDP_XCHECKSUM_LENGTH);
+        } else if (!select_sig[0] || !memcmp("RSD PTR ", select_sig, 4)) {
+                addr += (long)x - (long)raw;
+                length = snprintf(buff, 80, "RSD PTR @ %p\n", (void *)addr);
+                write(fd, buff, length);
+                acpi_show_data(fd, (u8 *) & rsdpx, (rsdpx.revision < 2) ?
+                                ACPI_RSDP_CHECKSUM_LENGTH : ACPI_RSDP_XCHECKSUM_LENGTH);
+                buff[0] = '\n';
+                write(fd, buff, 1);
+        }
+        acpi_dump_dynamic_SSDT(fd);
+        close(fd);
+        return 0;
+not_found:
+        close(fd);
+        fprintf(stderr, "ACPI tables were not found. If you know location "
+                "of RSD PTR table (from dmesg, etc), "
+                "supply it with either --addr or -a option\n");
+        return 1;
+}
diff --git a/tools/power/x86/turbostat/turbostat.8 b/tools/power/x86/turbostat/turbostat.8
index 74e44507dfe9..e4d0690cccf9 100644
--- a/tools/power/x86/turbostat/turbostat.8
+++ b/tools/power/x86/turbostat/turbostat.8
@@ -4,15 +4,11 @@ turbostat \- Report processor frequency and idle statistics
 .SH SYNOPSIS
 .ft B
 .B turbostat
-.RB [ "\-s" ]
+.RB [ Options ]
-.RB [ "\-v" ]
-.RB [ "\-M MSR#" ]
 .RB command
 .br
 .B turbostat
-.RB [ "\-s" ]
+.RB [ Options ]
-.RB [ "\-v" ]
-.RB [ "\-M MSR#" ]
 .RB [ "\-i interval_sec" ]
 .SH DESCRIPTION
 \fBturbostat \fP reports processor topology, frequency
@@ -27,16 +23,23 @@ supports an "invariant" TSC, plus the APERF and MPERF MSRs.
 on processors that additionally support C-state residency counters.
 .SS Options
-The \fB-s\fP option limits output to a 1-line system summary for each interval.
+The \fB-p\fP option limits output to the 1st thread in 1st core of each package.
 .PP
-The \fB-c\fP option limits output to the 1st thread in each core.
+The \fB-P\fP option limits output to the 1st thread in each Package.
 .PP
-The \fB-p\fP option limits output to the 1st thread in each package.
+The \fB-S\fP option limits output to a 1-line System Summary for each interval.
 .PP
 The \fB-v\fP option increases verbosity.
 .PP
-The \fB-M MSR#\fP option dumps the specified MSR,
+The \fB-s\fP option prints the SMI counter, equivalent to "-c 0x34"
-in addition to the usual frequency and idle statistics.
+.PP
+The \fB-c MSR#\fP option includes the delta of the specified 32-bit MSR counter.
+.PP
+The \fB-C MSR#\fP option includes the delta of the specified 64-bit MSR counter.
+.PP
+The \fB-m MSR#\fP option includes the the specified 32-bit MSR value.
+.PP
+The \fB-M MSR#\fP option includes the the specified 64-bit MSR value.
 .PP
 The \fB-i interval_sec\fP option prints statistics every \fiinterval_sec\fP seconds.
 The default is 5 seconds.
@@ -150,6 +153,29 @@ Note that turbostat reports average GHz of 3.63, while
 the arithmetic average of the GHz column above is lower.
 This is a weighted average, where the weight is %c0.  ie. it is the total number of
 un-halted cycles elapsed per time divided by the number of CPUs.
+.SH SMI COUNTING EXAMPLE
+On Intel Nehalem and newer processors, MSR 0x34 is a System Management Mode Interrupt (SMI) counter.
+Using the -m option, you can display how many SMIs have fired since reset, or if there
+are SMIs during the measurement interval, you can display the delta using the -d option.
+.nf
+[root@x980 ~]# turbostat -m 0x34
+cor CPU    %c0  GHz  TSC   MSR 0x034    %c1    %c3    %c6   %pc3   %pc6
+          1.41 1.82 3.38  0x00000000   8.92  37.82  51.85  17.37   0.55
+  0   0   3.73 2.03 3.38  0x00000055   1.72  48.25  46.31  17.38   0.55
+  0   6   0.14 1.63 3.38  0x00000056   5.30
+  1   2   2.51 1.80 3.38  0x00000056  15.65  29.33  52.52
+  1   8   0.10 1.65 3.38  0x00000056  18.05
+  2   4   1.16 1.68 3.38  0x00000056   5.87  24.47  68.50
+  2  10   0.10 1.63 3.38  0x00000056   6.93
+  8   1   3.84 1.91 3.38  0x00000056   1.36  50.65  44.16
+  8   7   0.08 1.64 3.38  0x00000056   5.12
+  9   3   1.82 1.73 3.38  0x00000056   7.59  24.21  66.38
+  9   9   0.09 1.68 3.38  0x00000056   9.32
+ 10   5   1.66 1.65 3.38  0x00000056  15.10  50.00  33.23
+ 10  11   1.72 1.65 3.38  0x00000056  15.05
+^C
+[root@x980 ~]# 
+.fi
 .SH NOTES
 .B "turbostat "
@@ -165,6 +191,13 @@ may work poorly on Linux-2.6.20 through 2.6.29,
 as \fBacpi-cpufreq \fPperiodically cleared the APERF and MPERF
 in those kernels.
+If the TSC column does not make sense, then
+the other numbers will also make no sense.
+Turbostat is lightweight, and its data collection is not atomic.
+These issues are usually caused by an extremely short measurement
+interval (much less than 1 second), or system activity that prevents
+turbostat from being able to run on all CPUS to quickly collect data.
 The APERF, MPERF MSRs are defined to count non-halted cycles.
 Although it is not guaranteed by the architecture, turbostat assumes
 that they count at TSC rate, which is true on all processors tested to date.
diff --git a/tools/power/x86/turbostat/turbostat.c b/tools/power/x86/turbostat/turbostat.c
index 861d77190206..2655ae9a3ad8 100644
--- a/tools/power/x86/turbostat/turbostat.c
+++ b/tools/power/x86/turbostat/turbostat.c
@@ -35,9 +35,9 @@
 #include <ctype.h>
 #include <sched.h>
-#define MSR_TSC 0x10
 #define MSR_NEHALEM_PLATFORM_INFO       0xCE
 #define MSR_NEHALEM_TURBO_RATIO_LIMIT   0x1AD
+#define MSR_IVT_TURBO_RATIO_LIMIT       0x1AE
 #define MSR_APERF       0xE8
 #define MSR_MPERF       0xE7
 #define MSR_PKG_C2_RESIDENCY    0x60D   /* SNB only */
@@ -62,7 +62,11 @@ unsigned int genuine_intel;
 unsigned int has_invariant_tsc;
 unsigned int do_nehalem_platform_info;
 unsigned int do_nehalem_turbo_ratio_limit;
-unsigned int extra_msr_offset;
+unsigned int do_ivt_turbo_ratio_limit;
+unsigned int extra_msr_offset32;
+unsigned int extra_msr_offset64;
+unsigned int extra_delta_offset32;
+unsigned int extra_delta_offset64;
 double bclk;
 unsigned int show_pkg;
 unsigned int show_core;
@@ -83,7 +87,10 @@ struct thread_data {
        unsigned long long aperf;
        unsigned long long mperf;
        unsigned long long c1;  /* derived */
-        unsigned long long extra_msr;
+        unsigned long long extra_msr64;
+        unsigned long long extra_delta64;
+        unsigned long long extra_msr32;
+        unsigned long long extra_delta32;
        unsigned int cpu_id;
        unsigned int flags;
 #define CPU_IS_FIRST_THREAD_IN_CORE     0x2
@@ -222,6 +229,14 @@ void print_header(void)
        if (has_aperf)
                outp += sprintf(outp, "  GHz");
        outp += sprintf(outp, "  TSC");
+        if (extra_delta_offset32)
+                outp += sprintf(outp, "  count 0x%03X", extra_delta_offset32);
+        if (extra_delta_offset64)
+                outp += sprintf(outp, "  COUNT 0x%03X", extra_delta_offset64);
+        if (extra_msr_offset32)
+                outp += sprintf(outp, "   MSR 0x%03X", extra_msr_offset32);
+        if (extra_msr_offset64)
+                outp += sprintf(outp, "           MSR 0x%03X", extra_msr_offset64);
        if (do_nhm_cstates)
                outp += sprintf(outp, "    %%c1");
        if (do_nhm_cstates)
@@ -238,8 +253,6 @@ void print_header(void)
                outp += sprintf(outp, "   %%pc6");
        if (do_snb_cstates)
                outp += sprintf(outp, "   %%pc7");
-        if (extra_msr_offset)
-                outp += sprintf(outp, "        MSR 0x%x ", extra_msr_offset);
        outp += sprintf(outp, "\n");
 }
@@ -255,8 +268,14 @@ int dump_counters(struct thread_data *t, struct core_data *c,
                fprintf(stderr, "aperf: %016llX\n", t->aperf);
                fprintf(stderr, "mperf: %016llX\n", t->mperf);
                fprintf(stderr, "c1: %016llX\n", t->c1);
+                fprintf(stderr, "msr0x%x: %08llX\n",
+                        extra_delta_offset32, t->extra_delta32);
                fprintf(stderr, "msr0x%x: %016llX\n",
-                        extra_msr_offset, t->extra_msr);
+                        extra_delta_offset64, t->extra_delta64);
+                fprintf(stderr, "msr0x%x: %08llX\n",
+                        extra_msr_offset32, t->extra_msr32);
+                fprintf(stderr, "msr0x%x: %016llX\n",
+                        extra_msr_offset64, t->extra_msr64);
        }
        if (c) {
@@ -360,6 +379,21 @@ int format_counters(struct thread_data *t, struct core_data *c,
        /* TSC */
        outp += sprintf(outp, "%5.2f", 1.0 * t->tsc/units/interval_float);
+        /* delta */
+        if (extra_delta_offset32)
+                outp += sprintf(outp, "  %11llu", t->extra_delta32);
+        /* DELTA */
+        if (extra_delta_offset64)
+                outp += sprintf(outp, "  %11llu", t->extra_delta64);
+        /* msr */
+        if (extra_msr_offset32)
+                outp += sprintf(outp, "  0x%08llx", t->extra_msr32);
+        /* MSR */
+        if (extra_msr_offset64)
+                outp += sprintf(outp, "  0x%016llx", t->extra_msr64);
        if (do_nhm_cstates) {
                if (!skip_c1)
                        outp += sprintf(outp, " %6.2f", 100.0 * t->c1/t->tsc);
@@ -391,8 +425,6 @@ int format_counters(struct thread_data *t, struct core_data *c,
        if (do_snb_cstates)
                outp += sprintf(outp, " %6.2f", 100.0 * p->pc7/t->tsc);
 done:
-        if (extra_msr_offset)
-                outp += sprintf(outp, "  0x%016llx", t->extra_msr);
        outp += sprintf(outp, "\n");
        return 0;
@@ -502,10 +534,16 @@ delta_thread(struct thread_data *new, struct thread_data *old,
                old->mperf = 1; /* divide by 0 protection */
        }
+        old->extra_delta32 = new->extra_delta32 - old->extra_delta32;
+        old->extra_delta32 &= 0xFFFFFFFF;
+        old->extra_delta64 = new->extra_delta64 - old->extra_delta64;
        /*
-         * for "extra msr", just copy the latest w/o subtracting
+         * Extra MSR is just a snapshot, simply copy latest w/o subtracting
         */
-        old->extra_msr = new->extra_msr;
+        old->extra_msr32 = new->extra_msr32;
+        old->extra_msr64 = new->extra_msr64;
 }
 int delta_cpu(struct thread_data *t, struct core_data *c,
@@ -533,6 +571,9 @@ void clear_counters(struct thread_data *t, struct core_data *c, struct pkg_data
        t->mperf = 0;
        t->c1 = 0;
+        t->extra_delta32 = 0;
+        t->extra_delta64 = 0;
        /* tells format_counters to dump all fields from this set */
        t->flags = CPU_IS_FIRST_THREAD_IN_CORE | CPU_IS_FIRST_CORE_IN_PACKAGE;
@@ -553,6 +594,9 @@ int sum_counters(struct thread_data *t, struct core_data *c,
        average.threads.mperf += t->mperf;
        average.threads.c1 += t->c1;
+        average.threads.extra_delta32 += t->extra_delta32;
+        average.threads.extra_delta64 += t->extra_delta64;
        /* sum per-core values only for 1st thread in core */
        if (!(t->flags & CPU_IS_FIRST_THREAD_IN_CORE))
                return 0;
@@ -588,6 +632,11 @@ void compute_average(struct thread_data *t, struct core_data *c,
        average.threads.mperf /= topo.num_cpus;
        average.threads.c1 /= topo.num_cpus;
+        average.threads.extra_delta32 /= topo.num_cpus;
+        average.threads.extra_delta32 &= 0xFFFFFFFF;
+        average.threads.extra_delta64 /= topo.num_cpus;
        average.cores.c3 /= topo.num_cores;
        average.cores.c6 /= topo.num_cores;
        average.cores.c7 /= topo.num_cores;
@@ -629,8 +678,24 @@ int get_counters(struct thread_data *t, struct core_data *c, struct pkg_data *p)
                        return -4;
        }
-        if (extra_msr_offset)
+        if (extra_delta_offset32) {
-                if (get_msr(cpu, extra_msr_offset, &t->extra_msr))
+                if (get_msr(cpu, extra_delta_offset32, &t->extra_delta32))
+                        return -5;
+                t->extra_delta32 &= 0xFFFFFFFF;
+        }
+        if (extra_delta_offset64)
+                if (get_msr(cpu, extra_delta_offset64, &t->extra_delta64))
+                        return -5;
+        if (extra_msr_offset32) {
+                if (get_msr(cpu, extra_msr_offset32, &t->extra_msr32))
+                        return -5;
+                t->extra_msr32 &= 0xFFFFFFFF;
+        }
+        if (extra_msr_offset64)
+                if (get_msr(cpu, extra_msr_offset64, &t->extra_msr64))
                        return -5;
        /* collect core counters only for 1st thread in core */
@@ -677,6 +742,9 @@ void print_verbose_header(void)
        get_msr(0, MSR_NEHALEM_PLATFORM_INFO, &msr);
+        if (verbose > 1)
+                fprintf(stderr, "MSR_NEHALEM_PLATFORM_INFO: 0x%llx\n", msr);
        ratio = (msr >> 40) & 0xFF;
        fprintf(stderr, "%d * %.0f = %.0f MHz max efficiency\n",
                ratio, bclk, ratio * bclk);
@@ -685,14 +753,84 @@ void print_verbose_header(void)
        fprintf(stderr, "%d * %.0f = %.0f MHz TSC frequency\n",
                ratio, bclk, ratio * bclk);
+        if (!do_ivt_turbo_ratio_limit)
+                goto print_nhm_turbo_ratio_limits;
+        get_msr(0, MSR_IVT_TURBO_RATIO_LIMIT, &msr);
        if (verbose > 1)
-                fprintf(stderr, "MSR_NEHALEM_PLATFORM_INFO: 0x%llx\n", msr);
+                fprintf(stderr, "MSR_IVT_TURBO_RATIO_LIMIT: 0x%llx\n", msr);
+        ratio = (msr >> 56) & 0xFF;
+        if (ratio)
+                fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 16 active cores\n",
+                        ratio, bclk, ratio * bclk);
+        ratio = (msr >> 48) & 0xFF;
+        if (ratio)
+                fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 15 active cores\n",
+                        ratio, bclk, ratio * bclk);
+        ratio = (msr >> 40) & 0xFF;
+        if (ratio)
+                fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 14 active cores\n",
+                        ratio, bclk, ratio * bclk);
+        ratio = (msr >> 32) & 0xFF;
+        if (ratio)
+                fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 13 active cores\n",
+                        ratio, bclk, ratio * bclk);
+        ratio = (msr >> 24) & 0xFF;
+        if (ratio)
+                fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 12 active cores\n",
+                        ratio, bclk, ratio * bclk);
+        ratio = (msr >> 16) & 0xFF;
+        if (ratio)
+                fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 11 active cores\n",
+                        ratio, bclk, ratio * bclk);
+        ratio = (msr >> 8) & 0xFF;
+        if (ratio)
+                fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 10 active cores\n",
+                        ratio, bclk, ratio * bclk);
+        ratio = (msr >> 0) & 0xFF;
+        if (ratio)
+                fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 9 active cores\n",
+                        ratio, bclk, ratio * bclk);
+print_nhm_turbo_ratio_limits:
        if (!do_nehalem_turbo_ratio_limit)
                return;
        get_msr(0, MSR_NEHALEM_TURBO_RATIO_LIMIT, &msr);
+        if (verbose > 1)
+                fprintf(stderr, "MSR_NEHALEM_TURBO_RATIO_LIMIT: 0x%llx\n", msr);
+        ratio = (msr >> 56) & 0xFF;
+        if (ratio)
+                fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 8 active cores\n",
+                        ratio, bclk, ratio * bclk);
+        ratio = (msr >> 48) & 0xFF;
+        if (ratio)
+                fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 7 active cores\n",
+                        ratio, bclk, ratio * bclk);
+        ratio = (msr >> 40) & 0xFF;
+        if (ratio)
+                fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 6 active cores\n",
+                        ratio, bclk, ratio * bclk);
+        ratio = (msr >> 32) & 0xFF;
+        if (ratio)
+                fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 5 active cores\n",
+                        ratio, bclk, ratio * bclk);
        ratio = (msr >> 24) & 0xFF;
        if (ratio)
                fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 4 active cores\n",
@@ -712,7 +850,6 @@ void print_verbose_header(void)
        if (ratio)
                fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 1 active cores\n",
                        ratio, bclk, ratio * bclk);
 }
 void free_all_buffers(void)
@@ -1038,7 +1175,7 @@ int has_nehalem_turbo_ratio_limit(unsigned int family, unsigned int model)
        case 0x2A:      /* SNB */
        case 0x2D:      /* SNB Xeon */
        case 0x3A:      /* IVB */
-        case 0x3D:      /* IVB Xeon */
+        case 0x3E:      /* IVB Xeon */
                return 1;
        case 0x2E:      /* Nehalem-EX Xeon - Beckton */
        case 0x2F:      /* Westmere-EX Xeon - Eagleton */
@@ -1046,6 +1183,22 @@ int has_nehalem_turbo_ratio_limit(unsigned int family, unsigned int model)
                return 0;
        }
 }
+int has_ivt_turbo_ratio_limit(unsigned int family, unsigned int model)
+{
+        if (!genuine_intel)
+                return 0;
+        if (family != 6)
+                return 0;
+        switch (model) {
+        case 0x3E:      /* IVB Xeon */
+                return 1;
+        default:
+                return 0;
+        }
+}
 int is_snb(unsigned int family, unsigned int model)
 {
@@ -1056,7 +1209,7 @@ int is_snb(unsigned int family, unsigned int model)
        case 0x2A:
        case 0x2D:
        case 0x3A:      /* IVB */
-        case 0x3D:      /* IVB Xeon */
+        case 0x3E:      /* IVB Xeon */
                return 1;
        }
        return 0;
@@ -1145,12 +1298,13 @@ void check_cpuid()
        bclk = discover_bclk(family, model);
        do_nehalem_turbo_ratio_limit = has_nehalem_turbo_ratio_limit(family, model);
+        do_ivt_turbo_ratio_limit = has_ivt_turbo_ratio_limit(family, model);
 }
 void usage()
 {
-        fprintf(stderr, "%s: [-v] [-M MSR#] [-i interval_sec | command ...]\n",
+        fprintf(stderr, "%s: [-v][-p|-P|-S][-c MSR# | -s]][-C MSR#][-m MSR#][-M MSR#][-i interval_sec | command ...]\n",
                progname);
        exit(1);
 }
@@ -1440,15 +1594,15 @@ void cmdline(int argc, char **argv)
        progname = argv[0];
-        while ((opt = getopt(argc, argv, "+cpsvi:M:")) != -1) {
+        while ((opt = getopt(argc, argv, "+pPSvisc:sC:m:M:")) != -1) {
                switch (opt) {
-                case 'c':
+                case 'p':
                        show_core_only++;
                        break;
-                case 'p':
+                case 'P':
                        show_pkg_only++;
                        break;
-                case 's':
+                case 'S':
                        summary_only++;
                        break;
                case 'v':
@@ -1457,10 +1611,20 @@ void cmdline(int argc, char **argv)
                case 'i':
                        interval_sec = atoi(optarg);
                        break;
+                case 'c':
+                        sscanf(optarg, "%x", &extra_delta_offset32);
+                        break;
+                case 's':
+                        extra_delta_offset32 = 0x34;    /* SMI counter */
+                        break;
+                case 'C':
+                        sscanf(optarg, "%x", &extra_delta_offset64);
+                        break;
+                case 'm':
+                        sscanf(optarg, "%x", &extra_msr_offset32);
+                        break;
                case 'M':
-                        sscanf(optarg, "%x", &extra_msr_offset);
+                        sscanf(optarg, "%x", &extra_msr_offset64);
-                        if (verbose > 1)
-                                fprintf(stderr, "MSR 0x%X\n", extra_msr_offset);
                        break;
                default:
                        usage();
@@ -1473,7 +1637,7 @@ int main(int argc, char **argv)
        cmdline(argc, argv);
        if (verbose > 1)
-                fprintf(stderr, "turbostat v2.0 May 16, 2012"
+                fprintf(stderr, "turbostat v2.1 October 6, 2012"
                        " - Len Brown <lenb@kernel.org>\n");
        turbostat_init();