Re: [PATCH] x86/fpu: Remove unnecessary checks for X86_FEATURE_FPU

[Borislav Petkov]

On Mon, Aug 31, 2026 at 11:57:06AM -0700, Eric Biggers wrote:
> Since commit ab05214025ee ("x86/fpu: Remove MATH_EMULATION and related
> glue code"), X86_FEATURE_FPU is mandatory.  If it's absent, the kernel
> halts execution in fpu__init_system_early_generic().  Remove unnecessary
> checks for X86_FEATURE_FPU that occur later in core x86 code.
> 
> Signed-off-by: Eric Biggers <ebiggers@xxxxxxxxxx>
> ---
>  arch/x86/kernel/fpu/bugs.c   | 4 ----
>  arch/x86/kernel/fpu/core.c   | 2 +-
>  arch/x86/kernel/fpu/init.c   | 2 --
>  arch/x86/kernel/fpu/xstate.c | 5 -----
>  4 files changed, 1 insertion(+), 12 deletions(-)

Sashiko might have a point here:

https://sashiko.dev/#/patchset/20260831185706.90103-1-ebiggers%40kernel.org

Thx.

-- 
Regards/Gruss,
    Boris.

https://people.kernel.org/tglx/notes-about-netiquette