[PATCH v7 028/120] x86/cpu: Use parsed CPUID(0x2)
"Ahmed S. Darwish" <[email protected]> Thu, 28 May 2026 17:37:50 +0200
| Newsgroups | dev.linux.lists.x86-cpuid,org.kernel.vger.linux-kernel |
|---|---|
| Message-ID | <[email protected]> |
For Intel TLB detection, use parsed CPUID(0x2) instead of a direct CPUID query. Remove the maximum CPUID level check since the CPUID API's NULL check is equivalent. Signed-off-by: Ahmed S. Darwish <[email protected]> --- arch/x86/kernel/cpu/intel.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/arch/x86/kernel/cpu/intel.c b/arch/x86/kernel/cpu/intel.c index f28c0efb7c8f..4d190dd64e95 100644 --- a/arch/x86/kernel/cpu/intel.c +++ b/arch/x86/kernel/cpu/intel.c @@ -709,14 +709,14 @@ static void intel_tlb_lookup(const struct leaf_0x2_table *desc) static void intel_detect_tlb(struct cpuinfo_x86 *c) { const struct leaf_0x2_table *desc; - union leaf_0x2_regs regs; - u8 *ptr; + const struct cpuid_regs *regs; + const u8 *ptr; - if (c->cpuid_level < 2) + regs = cpuid_leaf_raw(c, 0x2); + if (!regs) return; - cpuid_leaf_0x2(®s); - for_each_cpuid_0x2_desc(regs, ptr, desc) + for_each_parsed_cpuid_0x2_desc(regs, ptr, desc) intel_tlb_lookup(desc); } -- 2.54.0