diff options
| author | Thomas Weißschuh <thomas.weissschuh@linutronix.de> | 2026-03-02 08:58:38 +0100 |
|---|---|---|
| committer | Thomas Gleixner <tglx@kernel.org> | 2026-03-11 10:15:42 +0100 |
| commit | 273aaa8ef8e347c08865effcd8917e20f049e612 (patch) | |
| tree | f8a38bee906b9dafc2ce00b24ccfc0ddbe0fad0e | |
| parent | 56f85f67b3e20b105fa23bf97bfc8b6d5cdbbef0 (diff) | |
sparc64: vdso: Use 32-bit CHECKFLAGS for compat vDSO
When building the compat vDSO the CHECKFLAGS from the 64-bit kernel
are used. These are combined with the 32-bit CFLAGS. This confuses
sparse, producing false-positive warnings or potentially missing
real issues.
Manually override the CHECKFLAGS for the compat vDSO with the correct
32-bit configuration.
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@kernel.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Link: https://patch.msgid.link/20260302-vdso-compat-checkflags-v2-2-78e55baa58ba@linutronix.de
Closes: https://lore.kernel.org/lkml/202511030021.9v1mIgts-lkp@intel.com/
| -rw-r--r-- | arch/sparc/vdso/Makefile | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/sparc/vdso/Makefile b/arch/sparc/vdso/Makefile index 683b2d408224..d2811f17af07 100644 --- a/arch/sparc/vdso/Makefile +++ b/arch/sparc/vdso/Makefile @@ -90,6 +90,9 @@ KBUILD_CFLAGS_32 += -DDISABLE_BRANCH_PROFILING KBUILD_CFLAGS_32 += -mv8plus $(obj)/vdso32.so.dbg: KBUILD_CFLAGS = $(KBUILD_CFLAGS_32) +CHECKFLAGS_32 := $(filter-out -m64 -D__sparc_v9__ -D__arch64__, $(CHECKFLAGS)) -m32 +$(obj)/vdso32.so.dbg: CHECKFLAGS = $(CHECKFLAGS_32) + $(obj)/vdso32.so.dbg: FORCE \ $(obj)/vdso32/vdso32.lds \ $(obj)/vdso32/vclock_gettime.o \ |