diff options
| -rw-r--r-- | tools/arch/x86/kcpuid/kcpuid.c | 12 |
1 files changed, 5 insertions, 7 deletions
diff --git a/tools/arch/x86/kcpuid/kcpuid.c b/tools/arch/x86/kcpuid/kcpuid.c index a87cddc19554..581d28c861ee 100644 --- a/tools/arch/x86/kcpuid/kcpuid.c +++ b/tools/arch/x86/kcpuid/kcpuid.c @@ -7,7 +7,8 @@ #include <string.h> #include <getopt.h> -#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0])) +#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0])) +#define min(a, b) (((a) < (b)) ? (a) : (b)) typedef unsigned int u32; typedef unsigned long long u64; @@ -206,12 +207,9 @@ static void raw_dump_range(struct cpuid_range *range) #define MAX_SUBLEAF_NUM 64 struct cpuid_range *setup_cpuid_range(u32 input_eax) { - u32 max_func, idx_func; - int subleaf; + u32 max_func, idx_func, subleaf, max_subleaf; + u32 eax, ebx, ecx, edx, f = input_eax; struct cpuid_range *range; - u32 eax, ebx, ecx, edx; - u32 f = input_eax; - int max_subleaf; bool allzero; eax = input_eax; @@ -256,7 +254,7 @@ struct cpuid_range *setup_cpuid_range(u32 input_eax) * others have to be tried (0xf) */ if (f == 0x7 || f == 0x14 || f == 0x17 || f == 0x18) - max_subleaf = (eax & 0xff) + 1; + max_subleaf = min((eax & 0xff) + 1, max_subleaf); if (f == 0xb) max_subleaf = 2; |