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BACKPORT: kbuild: Switch to 'f' variants of integrated assembler flag

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commit 2185a7e4b0ade86c2c57fc63d4a7535c40254bd0 upstream.

It has been brought up a few times in various code reviews that clang
3.5 introduced -f{,no-}integrated-as as the preferred way to enable and
disable the integrated assembler, mentioning that -{no-,}integrated-as
are now considered legacy flags.

Switch the kernel over to using those variants in case there is ever a
time where clang decides to remove the non-'f' variants of the flag.

Also, fix a typo in a comment ("intergrated" -> "integrated").

Link: https://releases.llvm.org/3.5.0/tools/clang/docs/ReleaseNotes.html#new-compiler-flags
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Change-Id: Id848bd57d5e27afb85cf51c26d9312751168407e
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
[nathan: Backport to 5.10]
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Nathan Chancellor 2023-03-28 17:08:30 -07:00 • committed by Michael Bestas
commit 74212e4117
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2 changed files with 6 additions and 6 deletions
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Makefile
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@ -596,11 +596,11 @@ CLANG_FLAGS += --target=$(notdir $(CROSS_COMPILE:%-=%))
endif # CROSS_COMPILE
ifeq ($(LLVM_IAS),0)
CLANG_FLAGS += -no-integrated-as
CLANG_FLAGS += -fno-integrated-as
GCC_TOOLCHAIN_DIR := $(dir $(shell which $(CROSS_COMPILE)elfedit))
CLANG_FLAGS += --prefix=$(GCC_TOOLCHAIN_DIR)$(notdir $(CROSS_COMPILE))
else
CLANG_FLAGS += -integrated-as
CLANG_FLAGS += -fintegrated-as
endif
CLANG_FLAGS += -Werror=unknown-warning-option
KBUILD_CPPFLAGS += $(CLANG_FLAGS)