From: Heiko Carstens heiko.carstens@de.ibm.com
[ Upstream commit f9364df30420987e77599c4789ec0065c609a507 ]
Get rid of gcc9 warnings like this:
arch/s390/boot/ipl_report.c: In function 'find_bootdata_space': arch/s390/boot/ipl_report.c:42:26: warning: taking address of packed member of 'struct ipl_rb_components' may result in an unaligned pointer value [-Waddress-of-packed-member] 42 | for_each_rb_entry(comp, comps) | ^~~~~
This is effectively the s390 variant of commit 20c6c1890455 ("x86/boot: Disable the address-of-packed-member compiler warning").
Reviewed-by: Vasily Gorbik gor@linux.ibm.com Signed-off-by: Heiko Carstens heiko.carstens@de.ibm.com Signed-off-by: Sasha Levin sashal@kernel.org --- arch/s390/Makefile | 1 + 1 file changed, 1 insertion(+)
diff --git a/arch/s390/Makefile b/arch/s390/Makefile index ee65185bbc80..e6c2e8925fef 100644 --- a/arch/s390/Makefile +++ b/arch/s390/Makefile @@ -24,6 +24,7 @@ KBUILD_CFLAGS_DECOMPRESSOR += -DDISABLE_BRANCH_PROFILING -D__NO_FORTIFY KBUILD_CFLAGS_DECOMPRESSOR += -fno-delete-null-pointer-checks -msoft-float KBUILD_CFLAGS_DECOMPRESSOR += -fno-asynchronous-unwind-tables KBUILD_CFLAGS_DECOMPRESSOR += $(call cc-option,-ffreestanding) +KBUILD_CFLAGS_DECOMPRESSOR += $(call cc-disable-warning, address-of-packed-member) KBUILD_CFLAGS_DECOMPRESSOR += $(if $(CONFIG_DEBUG_INFO),-g) KBUILD_CFLAGS_DECOMPRESSOR += $(if $(CONFIG_DEBUG_INFO_DWARF4), $(call cc-option, -gdwarf-4,)) UTS_MACHINE := s390x