All other sanitizers are disabled for these components as well.

Reviewed-by: Alexander Gordeev <agordeev@linux.ibm.com>
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
---
 arch/s390/boot/Makefile          | 1 +
 arch/s390/kernel/vdso32/Makefile | 1 +
 arch/s390/kernel/vdso64/Makefile | 1 +
 arch/s390/purgatory/Makefile     | 1 +
 4 files changed, 4 insertions(+)

diff --git a/arch/s390/boot/Makefile b/arch/s390/boot/Makefile
index c7c81e5f9218..5a05c927f703 100644
--- a/arch/s390/boot/Makefile
+++ b/arch/s390/boot/Makefile
@@ -8,6 +8,7 @@ GCOV_PROFILE := n
 UBSAN_SANITIZE := n
 KASAN_SANITIZE := n
 KCSAN_SANITIZE := n
+KMSAN_SANITIZE := n
 
 KBUILD_AFLAGS := $(KBUILD_AFLAGS_DECOMPRESSOR)
 KBUILD_CFLAGS := $(KBUILD_CFLAGS_DECOMPRESSOR)
diff --git a/arch/s390/kernel/vdso32/Makefile b/arch/s390/kernel/vdso32/Makefile
index caec7db6f966..8911c55a7f07 100644
--- a/arch/s390/kernel/vdso32/Makefile
+++ b/arch/s390/kernel/vdso32/Makefile
@@ -37,6 +37,7 @@ GCOV_PROFILE := n
 UBSAN_SANITIZE := n
 KASAN_SANITIZE := n
 KCSAN_SANITIZE := n
+KMSAN_SANITIZE := n
 
 # Force dependency (incbin is bad)
 $(obj)/vdso32_wrapper.o : $(obj)/vdso32.so
diff --git a/arch/s390/kernel/vdso64/Makefile b/arch/s390/kernel/vdso64/Makefile
index e3c9085f8fa7..f4f75c334d59 100644
--- a/arch/s390/kernel/vdso64/Makefile
+++ b/arch/s390/kernel/vdso64/Makefile
@@ -41,6 +41,7 @@ GCOV_PROFILE := n
 UBSAN_SANITIZE := n
 KASAN_SANITIZE := n
 KCSAN_SANITIZE := n
+KMSAN_SANITIZE := n
 
 # Force dependency (incbin is bad)
 $(obj)/vdso64_wrapper.o : $(obj)/vdso64.so
diff --git a/arch/s390/purgatory/Makefile b/arch/s390/purgatory/Makefile
index 4e930f566878..e8402287b0cd 100644
--- a/arch/s390/purgatory/Makefile
+++ b/arch/s390/purgatory/Makefile
@@ -20,6 +20,7 @@ GCOV_PROFILE := n
 UBSAN_SANITIZE := n
 KASAN_SANITIZE := n
 KCSAN_SANITIZE := n
+KMSAN_SANITIZE := n
 
 KBUILD_CFLAGS := -fno-strict-aliasing -Wall -Wstrict-prototypes
 KBUILD_CFLAGS += -Wno-pointer-sign -Wno-sign-compare
-- 
2.41.0

On Wed, Nov 15, 2023 at 9:34 PM Ilya Leoshkevich <iii@linux.ibm.com> wrote:
>
> All other sanitizers are disabled for these components as well.
>
> Reviewed-by: Alexander Gordeev <agordeev@linux.ibm.com>
> Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Reviewed-by: Alexander Potapenko <glider@google.com>
(see a nit below)

> ---
>  arch/s390/boot/Makefile          | 1 +
>  arch/s390/kernel/vdso32/Makefile | 1 +
>  arch/s390/kernel/vdso64/Makefile | 1 +
>  arch/s390/purgatory/Makefile     | 1 +
>  4 files changed, 4 insertions(+)
>
> diff --git a/arch/s390/boot/Makefile b/arch/s390/boot/Makefile
> index c7c81e5f9218..5a05c927f703 100644
> --- a/arch/s390/boot/Makefile
> +++ b/arch/s390/boot/Makefile
> @@ -8,6 +8,7 @@ GCOV_PROFILE := n
>  UBSAN_SANITIZE := n
>  KASAN_SANITIZE := n
>  KCSAN_SANITIZE := n
> +KMSAN_SANITIZE := n

Nit: I think having even a one-line comment before this block
(something similar to
https://elixir.bootlin.com/linux/latest/source/arch/x86/boot/Makefile#L12)
will make it more clear.

But given that the comment wasn't there before, leaving this up to you.