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x86, cpufeature: Fix cpuid leaf 7 feature detection 

CPUID leaf 7, subleaf 0 returns the maximum subleaf in EAX, not the
number of subleaves.  Since so far only subleaf 0 is defined (and only
the EBX bitfield) we do not need to qualify the test.

Signed-off-by: Fenghua Yu <fenghua.yu@intel.com>
Link: http://lkml.kernel.org/r/1305660806-17519-1-git-send-email-fenghua.yu@intel.com
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Cc: <stable@kernel.org> 2.6.36..39
This commit is contained in:
Fenghua Yu 2011-05-17 12:33:26 -07:00 committed by H. Peter Anvin
parent 693d92a1bb
commit 2494b030ba
1 changed files with 1 additions and 2 deletions
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3
arch/x86/kernel/cpu/common.c
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@ -565,8 +565,7 @@ void __cpuinit get_cpu_cap(struct cpuinfo_x86 *c)
cpuid_count(0x00000007, 0, &eax, &ebx, &ecx, &edx);
if (eax > 0)
c->x86_capability[9] = ebx;
c->x86_capability[9] = ebx;
}
/* AMD-defined flags: level 0x80000001 */