This is a note to let you know that I've just added the patch titled
kbuild: Switch to 'f' variants of integrated assembler flag
to the 5.10-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
kbuild-switch-to-f-variants-of-integrated-assembler-flag.patch
and it can be found in the queue-5.10 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From stable-owner@xxxxxxxxxxxxxxx Wed Mar 29 02:08:38 2023
From: Nathan Chancellor <nathan@xxxxxxxxxx>
Date: Tue, 28 Mar 2023 17:08:30 -0700
Subject: kbuild: Switch to 'f' variants of integrated assembler flag
To: gregkh@xxxxxxxxxxxxxxxxxxx, sashal@xxxxxxxxxx
Cc: conor@xxxxxxxxxx, stable@xxxxxxxxxxxxxxx, llvm@xxxxxxxxxxxxxxx, Nick Desaulniers <ndesaulniers@xxxxxxxxxx>, Nathan Chancellor <nathan@xxxxxxxxxx>, Masahiro Yamada <masahiroy@xxxxxxxxxx>
Message-ID: <20230328-riscv-zifencei-zicsr-5-10-v1-2-bccb3e16dc46@xxxxxxxxxx>
From: Nathan Chancellor <nathan@xxxxxxxxxx>
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@xxxxxxxxxx>
Signed-off-by: Nathan Chancellor <nathan@xxxxxxxxxx>
Signed-off-by: Masahiro Yamada <masahiroy@xxxxxxxxxx>
[nathan: Backport to 5.10]
Signed-off-by: Nathan Chancellor <nathan@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
Makefile | 4 ++--
scripts/as-version.sh | 8 ++++----
2 files changed, 6 insertions(+), 6 deletions(-)
--- a/Makefile
+++ b/Makefile
@@ -581,9 +581,9 @@ ifneq ($(GCC_TOOLCHAIN),)
CLANG_FLAGS += --gcc-toolchain=$(GCC_TOOLCHAIN)
endif
ifeq ($(LLVM_IAS),1)
-CLANG_FLAGS += -integrated-as
+CLANG_FLAGS += -fintegrated-as
else
-CLANG_FLAGS += -no-integrated-as
+CLANG_FLAGS += -fno-integrated-as
endif
CLANG_FLAGS += -Werror=unknown-warning-option
KBUILD_CFLAGS += $(CLANG_FLAGS)
--- a/scripts/as-version.sh
+++ b/scripts/as-version.sh
@@ -21,14 +21,14 @@ get_canonical_version()
echo $((10000 * $1 + 100 * ${2:-0} + ${3:-0}))
}
-# Clang fails to handle -Wa,--version unless -no-integrated-as is given.
-# We check -(f)integrated-as, expecting it is explicitly passed in for the
+# Clang fails to handle -Wa,--version unless -fno-integrated-as is given.
+# We check -fintegrated-as, expecting it is explicitly passed in for the
# integrated assembler case.
check_integrated_as()
{
while [ $# -gt 0 ]; do
- if [ "$1" = -integrated-as -o "$1" = -fintegrated-as ]; then
- # For the intergrated assembler, we do not check the
+ if [ "$1" = -fintegrated-as ]; then
+ # For the integrated assembler, we do not check the
# version here. It is the same as the clang version, and
# it has been already checked by scripts/cc-version.sh.
echo LLVM 0
Patches currently in stable-queue which might be from stable-owner@xxxxxxxxxxxxxxx are
queue-5.10/kbuild-check-the-minimum-assembler-version-in-kconfig.patch
queue-5.10/cgroup-cpuset-make-cpuset_fork-handle-clone_into_cgroup-properly.patch
queue-5.10/kbuild-check-config_as_is_llvm-instead-of-llvm_ias.patch
queue-5.10/riscv-handle-zicsr-zifencei-issues-between-clang-and-binutils.patch
queue-5.10/kbuild-switch-to-f-variants-of-integrated-assembler-flag.patch
queue-5.10/cgroup-cpuset-add-cpuset_can_fork-and-cpuset_cancel_fork-methods.patch
queue-5.10/cgroup-cpuset-change-references-of-cpuset_mutex-to-cpuset_rwsem.patch
queue-5.10/cgroup-cpuset-skip-spread-flags-update-on-v2.patch
