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| author | Joe Perches <joe@perches.com> | 2019-08-06 01:11:15 +0300 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2019-08-10 22:45:37 +0300 |
| commit | bfd77145f35c3deafe57e9eb67fff4ccffdaef6e (patch) | |
| tree | bab86bd5b27f5b476bda19a7d36240fb328781a9 | |
| parent | 5aa910073744e5ed6d79410d81fa44149b2deeb7 (diff) | |
| download | linux-bfd77145f35c3deafe57e9eb67fff4ccffdaef6e.tar.xz | |
Makefile: Convert -Wimplicit-fallthrough=3 to just -Wimplicit-fallthrough for clang
A compilation -Wimplicit-fallthrough warning was enabled by commit
a035d552a93b ("Makefile: Globally enable fall-through warning")
Even though clang 10.0.0 does not currently support this warning without
a patch, clang currently does not support a value for this option.
Link: https://bugs.llvm.org/show_bug.cgi?id=39382
The gcc default for this warning is 3 so removing the =3 has no effect
for gcc and enables the warning for patched versions of clang.
Also remove the =3 from an existing use in a parisc Makefile:
arch/parisc/math-emu/Makefile
Signed-off-by: Joe Perches <joe@perches.com>
Reviewed-and-tested-by: Nathan Chancellor <natechancellor@gmail.com>
Cc: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -rw-r--r-- | Makefile | 2 | ||||
| -rw-r--r-- | arch/parisc/math-emu/Makefile | 2 |
2 files changed, 2 insertions, 2 deletions
@@ -846,7 +846,7 @@ NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include) KBUILD_CFLAGS += -Wdeclaration-after-statement # Warn about unmarked fall-throughs in switch statement. -KBUILD_CFLAGS += $(call cc-option,-Wimplicit-fallthrough=3,) +KBUILD_CFLAGS += $(call cc-option,-Wimplicit-fallthrough,) # Variable Length Arrays (VLAs) should not be used anywhere in the kernel KBUILD_CFLAGS += -Wvla diff --git a/arch/parisc/math-emu/Makefile b/arch/parisc/math-emu/Makefile index 55c1396580a4..3747a0cbd3b8 100644 --- a/arch/parisc/math-emu/Makefile +++ b/arch/parisc/math-emu/Makefile @@ -18,4 +18,4 @@ obj-y := frnd.o driver.o decode_exc.o fpudispatch.o denormal.o \ # other very old or stripped-down PA-RISC CPUs -- not currently supported obj-$(CONFIG_MATH_EMULATION) += unimplemented-math-emulation.o -CFLAGS_REMOVE_fpudispatch.o = -Wimplicit-fallthrough=3 +CFLAGS_REMOVE_fpudispatch.o = -Wimplicit-fallthrough |