Merge branch 'linus' into x86/urgent
diff --git a/arch/x86/Kconfig.debug b/arch/x86/Kconfig.debug
index ae36bfa..51c8214 100644
--- a/arch/x86/Kconfig.debug
+++ b/arch/x86/Kconfig.debug
@@ -5,13 +5,15 @@
source "lib/Kconfig.debug"
-config NONPROMISC_DEVMEM
+config STRICT_DEVMEM
bool "Filter access to /dev/mem"
help
- If this option is left off, you allow userspace access to all
+ If this option is left on, you allow userspace (root) access to all
of memory, including kernel and userspace memory. Accidental
access to this is obviously disastrous, but specific access can
- be used by people debugging the kernel.
+ be used by people debugging the kernel. Note that with PAT support
+ enabled, even in this case there are restrictions on /dev/mem
+ use due to the cache aliasing requirements.
If this option is switched on, the /dev/mem file only allows
userspace access to PCI space and the BIOS code and data regions.
diff --git a/arch/x86/configs/i386_defconfig b/arch/x86/configs/i386_defconfig
index 9bc34e2..4d73f53 100644
--- a/arch/x86/configs/i386_defconfig
+++ b/arch/x86/configs/i386_defconfig
@@ -2047,7 +2047,7 @@
# CONFIG_SAMPLES is not set
# CONFIG_KGDB is not set
CONFIG_HAVE_ARCH_KGDB=y
-# CONFIG_NONPROMISC_DEVMEM is not set
+# CONFIG_STRICT_DEVMEM is not set
CONFIG_EARLY_PRINTK=y
CONFIG_DEBUG_STACKOVERFLOW=y
CONFIG_DEBUG_STACK_USAGE=y
diff --git a/arch/x86/configs/x86_64_defconfig b/arch/x86/configs/x86_64_defconfig
index ae5124e..a404524 100644
--- a/arch/x86/configs/x86_64_defconfig
+++ b/arch/x86/configs/x86_64_defconfig
@@ -2012,7 +2012,7 @@
# CONFIG_SAMPLES is not set
# CONFIG_KGDB is not set
CONFIG_HAVE_ARCH_KGDB=y
-# CONFIG_NONPROMISC_DEVMEM is not set
+# CONFIG_STRICT_DEVMEM is not set
CONFIG_EARLY_PRINTK=y
CONFIG_DEBUG_STACKOVERFLOW=y
CONFIG_DEBUG_STACK_USAGE=y
diff --git a/arch/x86/kernel/cpu/intel_cacheinfo.c b/arch/x86/kernel/cpu/intel_cacheinfo.c
index 2c8afaf..ff517f0b 100644
--- a/arch/x86/kernel/cpu/intel_cacheinfo.c
+++ b/arch/x86/kernel/cpu/intel_cacheinfo.c
@@ -780,15 +780,14 @@
}
kobject_put(per_cpu(cache_kobject, cpu));
cpuid4_cache_sysfs_exit(cpu);
- break;
+ return retval;
}
kobject_uevent(&(this_object->kobj), KOBJ_ADD);
}
- if (!retval)
- cpu_set(cpu, cache_dev_map);
+ cpu_set(cpu, cache_dev_map);
kobject_uevent(per_cpu(cache_kobject, cpu), KOBJ_ADD);
- return retval;
+ return 0;
}
static void __cpuinit cache_remove_dev(struct sys_device * sys_dev)
diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c
index 687376a..2745657 100644
--- a/arch/x86/kernel/smpboot.c
+++ b/arch/x86/kernel/smpboot.c
@@ -1311,7 +1311,7 @@
cpu_clear(cpu, cpu_callout_map);
cpu_clear(cpu, cpu_callin_map);
/* was set by cpu_init() */
- clear_bit(cpu, (unsigned long *)&cpu_initialized);
+ cpu_clear(cpu, cpu_initialized);
numa_remove_cpu(cpu);
}
diff --git a/arch/x86/kernel/smpcommon_32.c b/arch/x86/kernel/smpcommon_32.c
deleted file mode 100644
index 8b13789..0000000
--- a/arch/x86/kernel/smpcommon_32.c
+++ /dev/null
@@ -1 +0,0 @@
-
diff --git a/arch/x86/mm/pat.c b/arch/x86/mm/pat.c
index d458507..6bb597f 100644
--- a/arch/x86/mm/pat.c
+++ b/arch/x86/mm/pat.c
@@ -373,8 +373,8 @@
return vma_prot;
}
-#ifdef CONFIG_NONPROMISC_DEVMEM
-/* This check is done in drivers/char/mem.c in case of NONPROMISC_DEVMEM*/
+#ifdef CONFIG_STRICT_DEVMEM
+/* This check is done in drivers/char/mem.c in case of STRICT_DEVMEM*/
static inline int range_is_allowed(unsigned long pfn, unsigned long size)
{
return 1;
@@ -398,7 +398,7 @@
}
return 1;
}
-#endif /* CONFIG_NONPROMISC_DEVMEM */
+#endif /* CONFIG_STRICT_DEVMEM */
int phys_mem_access_prot_allowed(struct file *file, unsigned long pfn,
unsigned long size, pgprot_t *vma_prot)
diff --git a/drivers/char/mem.c b/drivers/char/mem.c
index 070e22e..b6772d6 100644
--- a/drivers/char/mem.c
+++ b/drivers/char/mem.c
@@ -80,7 +80,7 @@
}
#endif
-#ifdef CONFIG_NONPROMISC_DEVMEM
+#ifdef CONFIG_STRICT_DEVMEM
static inline int range_is_allowed(unsigned long pfn, unsigned long size)
{
u64 from = ((u64)pfn) << PAGE_SHIFT;
diff --git a/include/asm-x86/ftrace.h b/include/asm-x86/ftrace.h
index c184441..5c68b32 100644
--- a/include/asm-x86/ftrace.h
+++ b/include/asm-x86/ftrace.h
@@ -1,5 +1,5 @@
#ifndef _ASM_X86_FTRACE
-#define _ASM_SPARC64_FTRACE
+#define _ASM_X86_FTRACE
#ifdef CONFIG_FTRACE
#define MCOUNT_ADDR ((long)(mcount))
diff --git a/include/asm-x86/signal.h b/include/asm-x86/signal.h
index f15186d..6dac493 100644
--- a/include/asm-x86/signal.h
+++ b/include/asm-x86/signal.h
@@ -181,12 +181,12 @@
#ifdef __KERNEL__
#include <asm/sigcontext.h>
-#ifdef __386__
+#ifdef __i386__
#define __HAVE_ARCH_SIG_BITOPS
#define sigaddset(set,sig) \
- (__builtin_constantp(sig) \
+ (__builtin_constant_p(sig) \
? __const_sigaddset((set), (sig)) \
: __gen_sigaddset((set), (sig)))
