diff options
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/i386/kernel/cpu/intel_cacheinfo.c | 18 |
1 files changed, 6 insertions, 12 deletions
diff --git a/arch/i386/kernel/cpu/intel_cacheinfo.c b/arch/i386/kernel/cpu/intel_cacheinfo.c index 9e0d5f83cb9f..c802206274c2 100644 --- a/arch/i386/kernel/cpu/intel_cacheinfo.c +++ b/arch/i386/kernel/cpu/intel_cacheinfo.c @@ -117,7 +117,6 @@ struct _cpuid4_info { cpumask_t shared_cpu_map; }; -#define MAX_CACHE_LEAVES 4 static unsigned short num_cache_leaves; static int __devinit cpuid4_cache_lookup(int index, struct _cpuid4_info *this_leaf) @@ -144,20 +143,15 @@ static int __init find_num_cache_leaves(void) { unsigned int eax, ebx, ecx, edx; union _cpuid4_leaf_eax cache_eax; - int i; - int retval; + int i = -1; - retval = MAX_CACHE_LEAVES; - /* Do cpuid(4) loop to find out num_cache_leaves */ - for (i = 0; i < MAX_CACHE_LEAVES; i++) { + do { + ++i; + /* Do cpuid(4) loop to find out num_cache_leaves */ cpuid_count(4, i, &eax, &ebx, &ecx, &edx); cache_eax.full = eax; - if (cache_eax.split.type == CACHE_TYPE_NULL) { - retval = i; - break; - } - } - return retval; + } while (cache_eax.split.type != CACHE_TYPE_NULL); + return i; } unsigned int __devinit init_intel_cacheinfo(struct cpuinfo_x86 *c) |