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x86/fpu: Remove unnecessary CPUID level check

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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
This commit is contained in:
Dave Hansen
2024-12-13 12:50:38 -08:00
parent 754aaac3bb
commit 588e148d8b
1 changed files with 0 additions and 5 deletions
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5
arch/x86/kernel/fpu/xstate.c
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@@ -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.
*/