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authorArnd Bergmann <arnd@arndb.de>2020-05-08 11:35:43 +0200
committerHelge Deller <deller@gmx.de>2020-05-10 22:46:19 +0200
commit3fd84a4fc063f36855ddf2408c66e6e5d219b223 (patch)
tree335d1927ce57f232cdfbd1edccf83e5cea58a2be /arch/parisc
parent0d341e0ddb1a3444716420ad9151949c02adbe4e (diff)
parisc: use -fno-strict-aliasing for decompressor
An experimental patch series of mine reworks how warnings are processed in Kbuild. A side effect is a new warning about a harmless aliasing rule violation in an inline function: In file included from include/linux/rhashtable-types.h:15:0, from include/linux/ipc.h:7, from include/uapi/linux/sem.h:5, from include/linux/sem.h:5, from include/linux/sched.h:15, from include/linux/uaccess.h:6, from arch/parisc/boot/compressed/misc.c:7: include/linux/workqueue.h: In function 'work_static': include/linux/workqueue.h:212:2: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing] return *work_data_bits(work) & WORK_STRUCT_STATIC; Make the decompressor use -fno-strict-aliasing like the rest of the kernel for consistency, and to ensure this warning never makes it into a release. Reported-by: kbuild test robot <lkp@intel.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Helge Deller <deller@gmx.de>
Diffstat (limited to 'arch/parisc')
-rw-r--r--arch/parisc/boot/compressed/Makefile1
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/parisc/boot/compressed/Makefile b/arch/parisc/boot/compressed/Makefile
index 1e5879c6a752..dff453687530 100644
--- a/arch/parisc/boot/compressed/Makefile
+++ b/arch/parisc/boot/compressed/Makefile
@@ -16,6 +16,7 @@ targets += real2.S firmware.c
KBUILD_CFLAGS := -D__KERNEL__ -O2 -DBOOTLOADER
KBUILD_CFLAGS += -DDISABLE_BRANCH_PROFILING
+KBUILD_CFLAGS += -fno-strict-aliasing
KBUILD_CFLAGS += $(cflags-y) -fno-delete-null-pointer-checks -fno-builtin-printf
KBUILD_CFLAGS += -fno-PIE -mno-space-regs -mdisable-fpregs -Os
ifndef CONFIG_64BIT