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| author | Nathan Chancellor <nathan@kernel.org> | 2022-03-22 18:29:06 +0300 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2022-03-29 20:21:18 +0300 |
| commit | 07ea4ab1f9b83953ff5c3f6ccfb84d581bfe0046 (patch) | |
| tree | 042807dc73ffe1fc60c037a39aa133af6d4f28b6 /arch/x86/kvm | |
| parent | 70375c2d8fa3fb9b0b59207a9c5df1e2e1205c10 (diff) | |
| download | linux-07ea4ab1f9b83953ff5c3f6ccfb84d581bfe0046.tar.xz | |
KVM: x86: Fix clang -Wimplicit-fallthrough in do_host_cpuid()
Clang warns:
arch/x86/kvm/cpuid.c:739:2: error: unannotated fall-through between switch labels [-Werror,-Wimplicit-fallthrough]
default:
^
arch/x86/kvm/cpuid.c:739:2: note: insert 'break;' to avoid fall-through
default:
^
break;
1 error generated.
Clang is a little more pedantic than GCC, which does not warn when
falling through to a case that is just break or return. Clang's version
is more in line with the kernel's own stance in deprecated.rst, which
states that all switch/case blocks must end in either break,
fallthrough, continue, goto, or return. Add the missing break to silence
the warning.
Fixes: f144c49e8c39 ("KVM: x86: synthesize CPUID leaf 0x80000021h if useful")
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Message-Id: <20220322152906.112164-1-nathan@kernel.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch/x86/kvm')
| -rw-r--r-- | arch/x86/kvm/cpuid.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/x86/kvm/cpuid.c b/arch/x86/kvm/cpuid.c index 58b0b4e0263c..a3c87d2882ad 100644 --- a/arch/x86/kvm/cpuid.c +++ b/arch/x86/kvm/cpuid.c @@ -735,6 +735,7 @@ static struct kvm_cpuid_entry2 *do_host_cpuid(struct kvm_cpuid_array *array, if (function > READ_ONCE(max_cpuid_80000000)) return entry; } + break; default: break; |