projects
/
firefly-linux-kernel-4.4.55.git
/ blobdiff
commit
grep
author
committer
pickaxe
?
search:
re
summary
|
shortlog
|
log
|
commit
|
commitdiff
|
tree
raw
| inline |
side by side
Merge branch 'v3.10/topic/misc' into linux-linaro-lsk
[firefly-linux-kernel-4.4.55.git]
/
arch
/
x86
/
kernel
/
cpu
/
common.c
diff --git
a/arch/x86/kernel/cpu/common.c
b/arch/x86/kernel/cpu/common.c
index 22018f70a6716e2f57012378c19df770ba607ca0..deeb48d9459bd2b7559f5a6a9c0dee5f3cdd0349 100644
(file)
--- a/
arch/x86/kernel/cpu/common.c
+++ b/
arch/x86/kernel/cpu/common.c
@@
-284,8
+284,13
@@
static __always_inline void setup_smap(struct cpuinfo_x86 *c)
raw_local_save_flags(eflags);
BUG_ON(eflags & X86_EFLAGS_AC);
- if (cpu_has(c, X86_FEATURE_SMAP))
+ if (cpu_has(c, X86_FEATURE_SMAP)) {
+#ifdef CONFIG_X86_SMAP
set_in_cr4(X86_CR4_SMAP);
+#else
+ clear_in_cr4(X86_CR4_SMAP);
+#endif
+ }
}
/*