The following commit has been merged into the x86/microcode branch of tip:

Commit-ID:     2b730952066cd022d1f46e801f06ca6ca9878823
Gitweb:        
https://git.kernel.org/tip/2b730952066cd022d1f46e801f06ca6ca9878823
Author:        Borislav Petkov <b...@suse.de>
AuthorDate:    Sat, 28 Sep 2019 16:53:56 +02:00
Committer:     Borislav Petkov <b...@suse.de>
CommitterDate: Tue, 01 Oct 2019 11:36:09 +02:00

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: Borislav Petkov <b...@suse.de>
Cc: x...@kernel.org
Link: https://lkml.kernel.org/r/20190928162559.26294-1...@alien8.de
---
 arch/x86/kernel/cpu/microcode/amd.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/x86/kernel/cpu/microcode/amd.c 
b/arch/x86/kernel/cpu/microcode/amd.c
index a0e52bd..3f6b137 100644
--- a/arch/x86/kernel/cpu/microcode/amd.c
+++ b/arch/x86/kernel/cpu/microcode/amd.c
@@ -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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