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| author | Borislav Petkov <bp@suse.de> | 2024-05-16 12:22:40 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2024-05-16 12:46:36 +0200 |
| commit | dd0716c2b87792ebea30864e7ad1df461d4c1525 (patch) | |
| tree | f6a9568cd9dc79b6a54533111dda45cf913a0e8c /arch/x86/boot | |
| parent | Merge tag 'x86-irq-2024-05-12' of git://git.kernel.org/pub/scm/linux/kernel/g... (diff) | |
| download | linux-dd0716c2b87792ebea30864e7ad1df461d4c1525.tar.xz linux-dd0716c2b87792ebea30864e7ad1df461d4c1525.zip | |
x86/boot: Add a fallthrough annotation
Add implicit fallthrough checking to the decompressor code and fix this
warning:
arch/x86/boot/printf.c: In function ‘vsprintf’:
arch/x86/boot/printf.c:248:10: warning: this statement may fall through [-Wimplicit-fallthrough=]
248 | flags |= SMALL;
| ^
arch/x86/boot/printf.c:249:3: note: here
249 | case 'X':
| ^~~~
This is a patch from three years ago which I found in my trees, thus the
SUSE authorship still.
Signed-off-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Link: https://lore.kernel.org/r/20240516102240.16270-1-bp@kernel.org
Diffstat (limited to 'arch/x86/boot')
| -rw-r--r-- | arch/x86/boot/Makefile | 1 | ||||
| -rw-r--r-- | arch/x86/boot/printf.c | 1 |
2 files changed, 2 insertions, 0 deletions
diff --git a/arch/x86/boot/Makefile b/arch/x86/boot/Makefile index 3cece19b7473..343aef6d752f 100644 --- a/arch/x86/boot/Makefile +++ b/arch/x86/boot/Makefile @@ -69,6 +69,7 @@ KBUILD_CFLAGS := $(REALMODE_CFLAGS) -D_SETUP KBUILD_AFLAGS := $(KBUILD_CFLAGS) -D__ASSEMBLY__ KBUILD_CFLAGS += $(call cc-option,-fmacro-prefix-map=$(srctree)/=) KBUILD_CFLAGS += -fno-asynchronous-unwind-tables +KBUILD_CFLAGS += $(CONFIG_CC_IMPLICIT_FALLTHROUGH) GCOV_PROFILE := n UBSAN_SANITIZE := n diff --git a/arch/x86/boot/printf.c b/arch/x86/boot/printf.c index 1237beeb9540..c0ec1dc355ab 100644 --- a/arch/x86/boot/printf.c +++ b/arch/x86/boot/printf.c @@ -246,6 +246,7 @@ int vsprintf(char *buf, const char *fmt, va_list args) case 'x': flags |= SMALL; + fallthrough; case 'X': base = 16; break; |