Other sanitizers are disabled for these, disable KMSAN too. prom_init.o can only reference a limited set of external symbols. KMSAN adds additional references which are not permitted so disable sanitization.
Signed-off-by: Nicholas Miehlbradt <nicho...@linux.ibm.com> --- arch/powerpc/kernel/Makefile | 2 ++ arch/powerpc/kernel/vdso/Makefile | 1 + arch/powerpc/purgatory/Makefile | 1 + 3 files changed, 4 insertions(+) diff --git a/arch/powerpc/kernel/Makefile b/arch/powerpc/kernel/Makefile index 2919433be355..78ea441f7e18 100644 --- a/arch/powerpc/kernel/Makefile +++ b/arch/powerpc/kernel/Makefile @@ -61,6 +61,8 @@ KCSAN_SANITIZE_btext.o := n KCSAN_SANITIZE_paca.o := n KCSAN_SANITIZE_setup_64.o := n +KMSAN_SANITIZE_prom_init.o := n + #ifdef CONFIG_RANDOMIZE_KSTACK_OFFSET # Remove stack protector to avoid triggering unneeded stack canary # checks due to randomize_kstack_offset. diff --git a/arch/powerpc/kernel/vdso/Makefile b/arch/powerpc/kernel/vdso/Makefile index 0c7d82c270c3..86fa6ff1ee51 100644 --- a/arch/powerpc/kernel/vdso/Makefile +++ b/arch/powerpc/kernel/vdso/Makefile @@ -52,6 +52,7 @@ KCOV_INSTRUMENT := n UBSAN_SANITIZE := n KASAN_SANITIZE := n KCSAN_SANITIZE := n +KMSAN_SANITIZE := n ccflags-y := -fno-common -fno-builtin ldflags-y := -Wl,--hash-style=both -nostdlib -shared -z noexecstack $(CLANG_FLAGS) diff --git a/arch/powerpc/purgatory/Makefile b/arch/powerpc/purgatory/Makefile index 78473d69cd2b..4b267061bf84 100644 --- a/arch/powerpc/purgatory/Makefile +++ b/arch/powerpc/purgatory/Makefile @@ -2,6 +2,7 @@ KASAN_SANITIZE := n KCSAN_SANITIZE := n +KMSAN_SANITIZE := n targets += trampoline_$(BITS).o purgatory.ro -- 2.40.1