Re: [PATCH] x86/CPU/AMD: Simplify the spectral chicken fix
From: Nikolay Borisov
Date: Mon Jan 05 2026 - 08:36:05 EST
On 30.12.25 г. 13:07 ч., Borislav Petkov wrote:
From: "Borislav Petkov (AMD)" <bp@xxxxxxxxx>
msr_set_bit() takes a bit number to set but MSR_ZEN2_SPECTRAL_CHICKEN_BIT
is a bit mask. The usual pattern that code uses is a _BIT-named type
macro instead of a mask.
So convert it to a bit number to reflect that.
Also, msr_set_bit() already does the reading and checking whether the
bit needs to be set so use that instead of a local variable.
Fixup tabbing while at it.
No functional changes.
Signed-off-by: Borislav Petkov (AMD) <bp@xxxxxxxxx>
Reviewed-by: Nikolay Borisov <nik.borisov@xxxxxxxx>