tree: git://people.freedesktop.org/~agd5f/linux.git amd-staging-drm-next
head: dcae401d111324489c066aa57ed9c77b97b475f9
commit: e2e8b699af4f02a8ce46d338bbb1d227f68523b1 [1033/1053] drm/amd/powerplay: add CI asics support to smumgr
config: ia64-allyesconfig (attached as .config)
compiler: ia64-linux-gcc (GCC) 6.2.0
reproduce:
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
git checkout e2e8b699af4f02a8ce46d338bbb1d227f68523b1
# save the attached .config to linux build tree
make.cross ARCH=ia64
Note: it may well be a FALSE warning. FWIW you are at least aware of it now.
http://gcc.gnu.org/wiki/Better_Uninitialized_Warnings
All warnings (new ones prefixed by >>):
In file included from include/uapi/linux/swab.h:6:0,
from include/linux/swab.h:4,
from include/uapi/linux/byteorder/little_endian.h:12,
from include/linux/byteorder/little_endian.h:4,
from arch/ia64/include/uapi/asm/byteorder.h:4,
from include/asm-generic/bitops/le.h:5,
from arch/ia64/include/asm/bitops.h:448,
from include/linux/bitops.h:36,
from include/linux/kernel.h:10,
from include/linux/list.h:8,
from include/linux/module.h:9,
from drivers/gpu/drm/amd/amdgpu/../powerplay/smumgr/ci_smc.c:23:
drivers/gpu/drm/amd/amdgpu/../powerplay/smumgr/ci_smc.c: In function 'ci_init_smc_table':
>> arch/ia64/include/uapi/asm/swab.h:20:23: warning: 'tmp' may be used uninitialized in this function [-Wmaybe-uninitialized]
#define __arch_swab64 __arch_swab64
^~~~~~~~~~~~~
drivers/gpu/drm/amd/amdgpu/../powerplay/smumgr/ci_smc.c:571:11: note: 'tmp' was declared here
uint16_t tmp;
^~~
--
In file included from include/uapi/linux/swab.h:6:0,
from include/linux/swab.h:4,
from include/uapi/linux/byteorder/little_endian.h:12,
from include/linux/byteorder/little_endian.h:4,
from arch/ia64/include/uapi/asm/byteorder.h:4,
from include/asm-generic/bitops/le.h:5,
from arch/ia64/include/asm/bitops.h:448,
from include/linux/bitops.h:36,
from include/linux/kernel.h:10,
from include/linux/list.h:8,
from include/linux/module.h:9,
from drivers/gpu//drm/amd/amdgpu/../powerplay/smumgr/ci_smc.c:23:
drivers/gpu//drm/amd/amdgpu/../powerplay/smumgr/ci_smc.c: In function 'ci_init_smc_table':
>> arch/ia64/include/uapi/asm/swab.h:20:23: warning: 'tmp' may be used uninitialized in this function [-Wmaybe-uninitialized]
#define __arch_swab64 __arch_swab64
^~~~~~~~~~~~~
drivers/gpu//drm/amd/amdgpu/../powerplay/smumgr/ci_smc.c:571:11: note: 'tmp' was declared here
uint16_t tmp;
^~~
vim +/tmp +20 arch/ia64/include/uapi/asm/swab.h
ae189623 arch/ia64/include/asm/swab.h Harvey Harrison 2009-01-06 12
ae189623 arch/ia64/include/asm/swab.h Harvey Harrison 2009-01-06 13 static __inline__ __attribute_const__ __u64 __arch_swab64(__u64 x)
ae189623 arch/ia64/include/asm/swab.h Harvey Harrison 2009-01-06 14 {
ae189623 arch/ia64/include/asm/swab.h Harvey Harrison 2009-01-06 15 __u64 result;
ae189623 arch/ia64/include/asm/swab.h Harvey Harrison 2009-01-06 16
ae189623 arch/ia64/include/asm/swab.h Harvey Harrison 2009-01-06 17 result = ia64_mux1(x, ia64_mux1_rev);
ae189623 arch/ia64/include/asm/swab.h Harvey Harrison 2009-01-06 18 return result;
ae189623 arch/ia64/include/asm/swab.h Harvey Harrison 2009-01-06 19 }
ae189623 arch/ia64/include/asm/swab.h Harvey Harrison 2009-01-06 @20 #define __arch_swab64 __arch_swab64
ae189623 arch/ia64/include/asm/swab.h Harvey Harrison 2009-01-06 21
:::::: The code at line 20 was first introduced by commit
:::::: ae189623b7248cd245c068a1aeb4983359f9c088 ia64: introduce asm/swab.h
:::::: TO: Harvey Harrison <harvey.harrison@xxxxxxxxx>
:::::: CC: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
---
0-DAY kernel test infrastructure Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all Intel Corporation
Attachment:
.config.gz
Description: application/gzip
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