Commit 2b730952 authored by Borislav Petkov's avatar Borislav Petkov
Browse files

x86/microcode/amd: Fix two -Wunused-but-set-variable warnings 



The dummy variable is the high part of the microcode revision MSR which
is defined as reserved. Mark it unused so that W=1 builds don't trigger
the above warning.

No functional changes.

Signed-off-by: default avatarBorislav Petkov <bp@suse.de>
Cc: x86@kernel.org
Link: https://lkml.kernel.org/r/20190928162559.26294-1-bp@alien8.de
parent 54ecb8f7

arch/x86/kernel/cpu/microcode/amd.c

+2 −2
Original line number Diff line number Diff line
@@ -567,7 +567,7 @@ int __init save_microcode_in_initrd_amd(unsigned int cpuid_1_eax) 
void reload_ucode_amd(void)

{

	struct microcode_amd *mc;

	u32 rev, dummy;

	u32 rev, dummy __always_unused;



	mc = (struct microcode_amd *)amd_ucode_patch;
@@ -673,7 +673,7 @@ static enum ucode_state apply_microcode_amd(int cpu) 
	struct ucode_cpu_info *uci;

	struct ucode_patch *p;

	enum ucode_state ret;

	u32 rev, dummy;

	u32 rev, dummy __always_unused;



	BUG_ON(raw_smp_processor_id() != cpu);

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