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Commit c0b12abd authored by Heiko Carstens's avatar Heiko Carstens Committed by Greg Kroah-Hartman
Browse files

s390/boot: disable address-of-packed-member warning 



[ 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 20c6c189
("x86/boot: Disable the address-of-packed-member compiler warning").

Reviewed-by: default avatarVasily Gorbik <gor@linux.ibm.com>
Signed-off-by: default avatarHeiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: default avatarSasha Levin <sashal@kernel.org>
parent e71daed5

arch/s390/Makefile

+1 −0
Original line number Original line Diff line number Diff line
@@ -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-delete-null-pointer-checks -msoft-float

KBUILD_CFLAGS_DECOMPRESSOR += -fno-asynchronous-unwind-tables

KBUILD_CFLAGS_DECOMPRESSOR += -fno-asynchronous-unwind-tables

KBUILD_CFLAGS_DECOMPRESSOR += $(call cc-option,-ffreestanding)

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),-g)

KBUILD_CFLAGS_DECOMPRESSOR += $(if $(CONFIG_DEBUG_INFO_DWARF4), $(call cc-option, -gdwarf-4,))

KBUILD_CFLAGS_DECOMPRESSOR += $(if $(CONFIG_DEBUG_INFO_DWARF4), $(call cc-option, -gdwarf-4,))

UTS_MACHINE	:= s390x

UTS_MACHINE	:= s390x