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| author | Arnd Bergmann <arnd@arndb.de> | 2020-05-08 11:35:43 +0200 |
|---|---|---|
| committer | Helge Deller <deller@gmx.de> | 2020-05-10 22:46:19 +0200 |
| commit | 3fd84a4fc063f36855ddf2408c66e6e5d219b223 (patch) | |
| tree | 335d1927ce57f232cdfbd1edccf83e5cea58a2be /arch/parisc | |
| parent | 0d341e0ddb1a3444716420ad9151949c02adbe4e (diff) | |
| download | linux-3fd84a4fc063f36855ddf2408c66e6e5d219b223.tar.bz2 | |
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/Makefile | 1 |
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 |