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UPSTREAM: kbuild: drop -Wno-unknown-warning-option from clang options

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Since commit c3f0d0bc5b01 ("kbuild, LLVMLinux: Add -Werror to
cc-option to support clang"), cc-option and friends work nicely
for clang.

However, -Wno-unknown-warning-option makes clang happy with any
unknown warning options even if -Werror is specified.

Once -Wno-unknown-warning-option is added, any succeeding call of
cc-disable-warning is evaluated positive, then unknown warning
options are accepted.  This should be dropped.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
(cherry picked from commit a0ae981eba8f07dbc74bce38fd3a462b69a5bc8e)
Signed-off-by: Greg Hackmann <ghackmann@google.com>

Change-Id: I0535e20fbcecc2d431e9f08b1f274c5d96626af1
This commit is contained in:
Masahiro Yamada 2017-04-13 07:25:21 +09:00 • committed by Greg Hackmann
parent 03e66b365e
commit 4b44c97fed
2 changed files with 0 additions and 2 deletions
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1
Makefile
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@ -704,7 +704,6 @@ endif
KBUILD_CFLAGS += $(CLANG_TARGET) $(CLANG_GCC_TC)
KBUILD_AFLAGS += $(CLANG_TARGET) $(CLANG_GCC_TC)
KBUILD_CPPFLAGS += $(call cc-option,-Qunused-arguments,)
KBUILD_CPPFLAGS += $(call cc-option,-Wno-unknown-warning-option,)
KBUILD_CFLAGS += $(call cc-disable-warning, unused-variable)
KBUILD_CFLAGS += $(call cc-disable-warning, format-invalid-specifier)
KBUILD_CFLAGS += $(call cc-disable-warning, gnu)

1
scripts/Makefile.extrawarn
View file

@ -61,7 +61,6 @@ ifeq ($(cc-name),clang)
KBUILD_CFLAGS += $(call cc-disable-warning, initializer-overrides)
KBUILD_CFLAGS += $(call cc-disable-warning, unused-value)
KBUILD_CFLAGS += $(call cc-disable-warning, format)
KBUILD_CFLAGS += $(call cc-disable-warning, unknown-warning-option)
KBUILD_CFLAGS += $(call cc-disable-warning, sign-compare)
KBUILD_CFLAGS += $(call cc-disable-warning, format-zero-length)
KBUILD_CFLAGS += $(call cc-disable-warning, uninitialized)