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| author |   Dave Hansen <dave.hansen@linux.intel.com> | 2024-12-13 12:50:38 -0800 |
|---|---|---|
| committer | Dave Hansen <dave.hansen@linux.intel.com> | 2024-12-18 06:17:45 -0800 |
| commit | 588e148d8babeb2fd863fb152b80548e18971caf (patch) | |
| tree | cb890fea074955e68db98d664c1668cb1b928f4d | |
| parent | x86/fpu: Move CPUID leaf definitions to common code (diff) | |
| download | wireguard-linux-588e148d8babeb2fd863fb152b80548e18971caf.tar.xz wireguard-linux-588e148d8babeb2fd863fb152b80548e18971caf.zip | |
x86/fpu: Remove unnecessary CPUID level check
The CPUID level dependency table will entirely zap X86_FEATURE_XSAVE
if the CPUID level is too low. This code is unreachable. Kill it.
Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com>
Reviewed-by: Chang S. Bae <chang.seok.bae@intel.com>
Link: https://lore.kernel.org/all/20241213205038.6E71F9A4%40davehans-spike.ostc.intel.com
| -rw-r--r-- | arch/x86/kernel/fpu/xstate.c | 5 |
1 files changed, 0 insertions, 5 deletions
diff --git a/arch/x86/kernel/fpu/xstate.c b/arch/x86/kernel/fpu/xstate.c index bf38b3e75425..edacd34c1a22 100644 --- a/arch/x86/kernel/fpu/xstate.c +++ b/arch/x86/kernel/fpu/xstate.c @@ -764,11 +764,6 @@ void __init fpu__init_system_xstate(unsigned int legacy_size) return; } - if (boot_cpu_data.cpuid_level < XSTATE_CPUID) { - WARN_ON_FPU(1); - return; - } - /* * Find user xstates supported by the processor. */ |