diff options
| author | Borislav Petkov (AMD) <bp@alien8.de> | 2024-07-30 09:52:43 +0200 |
|---|---|---|
| committer | Borislav Petkov (AMD) <bp@alien8.de> | 2024-07-30 09:52:43 +0200 |
| commit | 5343558a868e7e635b40baa2e46bf53df1a2d131 (patch) | |
| tree | d25f85d87d75edc91dcbc76b08d89367530c1d48 /arch/x86/kernel/cpu/microcode | |
| parent | 94838d230a6c835ced1bad06b8759e0a5f19c1d3 (diff) | |
x86/microcode/AMD: Fix a -Wsometimes-uninitialized clang false positive
Initialize equiv_id in order to shut up:
arch/x86/kernel/cpu/microcode/amd.c:714:6: warning: variable 'equiv_id' is \
used uninitialized whenever 'if' condition is false [-Wsometimes-uninitialized]
if (x86_family(bsp_cpuid_1_eax) < 0x17) {
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
because clang doesn't do interprocedural analysis for warnings to see
that this variable won't be used uninitialized.
Fixes: 94838d230a6c ("x86/microcode/AMD: Use the family,model,stepping encoded in the patch ID")
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202407291815.gJBST0P3-lkp@intel.com/
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Diffstat (limited to 'arch/x86/kernel/cpu/microcode')
| -rw-r--r-- | arch/x86/kernel/cpu/microcode/amd.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/kernel/cpu/microcode/amd.c b/arch/x86/kernel/cpu/microcode/amd.c index 1f5d36f92b8a..f63b051f25a0 100644 --- a/arch/x86/kernel/cpu/microcode/amd.c +++ b/arch/x86/kernel/cpu/microcode/amd.c @@ -703,7 +703,7 @@ static struct ucode_patch *find_patch(unsigned int cpu) { struct ucode_cpu_info *uci = ucode_cpu_info + cpu; u32 rev, dummy __always_unused; - u16 equiv_id; + u16 equiv_id = 0; /* fetch rev if not populated yet: */ if (!uci->cpu_sig.rev) { |