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authorLinus Torvalds <torvalds@linux-foundation.org>2016-05-10 11:41:05 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2016-05-10 11:41:05 -0700
commit7ec02e3bf45e0e7502db7f8d50c19abc1ebbab00 (patch)
tree1f0a24b433f0a4d096d1b87e56e682a873c8dab1 /arch/x86/kernel/cpu/intel.c
parentac2440654df6ac7314e2f8819fe05e7c863a2392 (diff)
parent8d415ee225a3d15d3e3029524350e8237a4de7b8 (diff)
Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Ingo Molnar: "Two topology corner case fixes, and a MAINTAINERS file update for mmiotrace maintenance" * 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/topology: Set x86_max_cores to 1 for CONFIG_SMP=n MAINTAINERS: Add mmiotrace entry x86/topology: Handle CPUID bogosity gracefully
Diffstat (limited to 'arch/x86/kernel/cpu/intel.c')
-rw-r--r--arch/x86/kernel/cpu/intel.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/kernel/cpu/intel.c b/arch/x86/kernel/cpu/intel.c
index 1f7fdb91a818..e4393bfc7f0d 100644
--- a/arch/x86/kernel/cpu/intel.c
+++ b/arch/x86/kernel/cpu/intel.c
@@ -336,7 +336,7 @@ static int intel_num_cpu_cores(struct cpuinfo_x86 *c)
{
unsigned int eax, ebx, ecx, edx;
- if (c->cpuid_level < 4)
+ if (!IS_ENABLED(CONFIG_SMP) || c->cpuid_level < 4)
return 1;
/* Intel has a non-standard dependency on %ecx for this CPUID level. */