diff mbox series

[10/14] s390/vdso: Drop '-shared' from KBUILD_CFLAGS_64

Message ID 20221228-drop-qunused-arguments-v1-10-658cbc8fc592@kernel.org (mailing list archive)
State New, archived
Headers show
Series Remove clang's -Qunused-arguments from KBUILD_CPPFLAGS | expand

Commit Message

Nathan Chancellor Jan. 4, 2023, 7:54 p.m. UTC
When clang's -Qunused-arguments is dropped from KBUILD_CPPFLAGS, it
points out that there is a linking phase flag added to CFLAGS, which
will only be used for compiling

  clang-16: error: argument unused during compilation: '-shared' [-Werror,-Wunused-command-line-argument]

'-shared' is already present in ldflags-y so it can just be dropped.

Fixes: 2b2a25845d53 ("s390/vdso: Use $(LD) instead of $(CC) to link vDSO")
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
---
Cc: hca@linux.ibm.com
Cc: gor@linux.ibm.com
Cc: agordeev@linux.ibm.com
Cc: borntraeger@linux.ibm.com
Cc: svens@linux.ibm.com
Cc: linux-s390@vger.kernel.org
---
 arch/s390/kernel/vdso64/Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Comments

Sven Schnelle Jan. 5, 2023, 7:31 a.m. UTC | #1
Nathan Chancellor <nathan@kernel.org> writes:

> When clang's -Qunused-arguments is dropped from KBUILD_CPPFLAGS, it
> points out that there is a linking phase flag added to CFLAGS, which
> will only be used for compiling
>
>   clang-16: error: argument unused during compilation: '-shared' [-Werror,-Wunused-command-line-argument]
>
> '-shared' is already present in ldflags-y so it can just be dropped.
>
> Fixes: 2b2a25845d53 ("s390/vdso: Use $(LD) instead of $(CC) to link vDSO")
> Signed-off-by: Nathan Chancellor <nathan@kernel.org>

Reviewed-by: Sven Schnelle <svens@linux.ibm.com>
diff mbox series

Patch

diff --git a/arch/s390/kernel/vdso64/Makefile b/arch/s390/kernel/vdso64/Makefile
index a2fe9383d452..34f9542636e9 100644
--- a/arch/s390/kernel/vdso64/Makefile
+++ b/arch/s390/kernel/vdso64/Makefile
@@ -25,7 +25,7 @@  KBUILD_AFLAGS_64 := $(filter-out -m64,$(KBUILD_AFLAGS))
 KBUILD_AFLAGS_64 += -m64
 
 KBUILD_CFLAGS_64 := $(filter-out -m64,$(KBUILD_CFLAGS))
-KBUILD_CFLAGS_64 += -m64 -fPIC -shared -fno-common -fno-builtin
+KBUILD_CFLAGS_64 += -m64 -fPIC -fno-common -fno-builtin
 ldflags-y := -fPIC -shared -soname=linux-vdso64.so.1 \
 	     --hash-style=both --build-id=sha1 -T