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authorIngo Molnar <mingo@kernel.org>2017-11-06 01:43:13 +0100
committerIngo Molnar <mingo@kernel.org>2017-11-06 01:43:13 +0100
commit19c5787a5ff88a959e5854ab6ddef7f5777c5837 (patch)
tree4aad2b3ff9e6e02ae45398470495dfe88cf7f6b9 /arch/x86/kernel/cpu
parent1e4c4f610f774df6088d7c065b2dd4d22adba698 (diff)
parent1943dc07b45e347c52c1bfdd4a37e04a86e399aa (diff)
Merge branch 'x86/fpu' into x86/asm, to pick up fix
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/x86/kernel/cpu')
-rw-r--r--arch/x86/kernel/cpu/cpuid-deps.c26
1 files changed, 11 insertions, 15 deletions
diff --git a/arch/x86/kernel/cpu/cpuid-deps.c b/arch/x86/kernel/cpu/cpuid-deps.c
index c21f22d836ad..904b0a3c4e53 100644
--- a/arch/x86/kernel/cpu/cpuid-deps.c
+++ b/arch/x86/kernel/cpu/cpuid-deps.c
@@ -62,23 +62,19 @@ const static struct cpuid_dep cpuid_deps[] = {
{}
};
-static inline void __clear_cpu_cap(struct cpuinfo_x86 *c, unsigned int bit)
-{
- clear_bit32(bit, c->x86_capability);
-}
-
-static inline void __setup_clear_cpu_cap(unsigned int bit)
-{
- clear_cpu_cap(&boot_cpu_data, bit);
- set_bit32(bit, cpu_caps_cleared);
-}
-
static inline void clear_feature(struct cpuinfo_x86 *c, unsigned int feature)
{
- if (!c)
- __setup_clear_cpu_cap(feature);
- else
- __clear_cpu_cap(c, feature);
+ /*
+ * Note: This could use the non atomic __*_bit() variants, but the
+ * rest of the cpufeature code uses atomics as well, so keep it for
+ * consistency. Cleanup all of it separately.
+ */
+ if (!c) {
+ clear_cpu_cap(&boot_cpu_data, feature);
+ set_bit(feature, (unsigned long *)cpu_caps_cleared);
+ } else {
+ clear_bit(feature, (unsigned long *)c->x86_capability);
+ }
}
/* Take the capabilities and the BUG bits into account */