From 588e148d8babeb2fd863fb152b80548e18971caf Mon Sep 17 00:00:00 2001 From: Dave Hansen Date: Fri, 13 Dec 2024 12:50:38 -0800 Subject: [PATCH] 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 Reviewed-by: Chang S. Bae Link: https://lore.kernel.org/all/20241213205038.6E71F9A4%40davehans-spike.ostc.intel.com --- arch/x86/kernel/fpu/xstate.c | 5 ----- 1 file changed, 5 deletions(-) diff --git a/arch/x86/kernel/fpu/xstate.c b/arch/x86/kernel/fpu/xstate.c index bf38b3e754258..edacd34c1a228 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. */