From: Prarit Bhargava prarit@redhat.com
makefile: Add -Werror support for RHEL
The -Werror flag should be enabled for RHEL. In ARK, however, it is a bit tricky to enable -Werror as a build bug occasionally leaks through upstream review and into Linus' tree. As a consequence, CONFIG_WERROR cannot be enabled in ARK but the code to add the flag for RHEL commpiles can be added to the top-level makefile.
This code could be placed in the top-level Makefile, around the -Werror line added by Linus in 3fe617ccafd6 ("Enable '-Werror' by default for all kernel builds"), but given the amount of RHEL Only code here it is best to keep it separated in our top-level makefile.
Signed-off-by: Prarit Bhargava prarit@redhat.com
diff --git a/makefile b/makefile index blahblah..blahblah 100644 --- a/makefile +++ b/makefile @@ -14,3 +14,10 @@ dist-%:: distg-%:: $(MAKE) -C redhat $(@) $(_EXTRA_ARGS)
+ifeq (,$(filter $(ARCH), x86 x86_64 powerpc s390 aarch64)) + ifneq ($(KBUILD_EXTMOD),) + # always strip out error flags for external modules + KBUILD_CPPFLAGS := $(filter-out -Werror,$(KBUILD_CPPFLAGS)) + KBUILD_RUSTFLAGS := $(filter-out -Dwarnings,$(KBUILD_RUSTFLAGS)) + endif +endif
-- https://gitlab.com/cki-project/kernel-ark/-/merge_requests/2240