* arch/nios2/include/asm/checksum.h:30:24: sparse: sparse: restricted __wsum degrades to integer
@ 2023-11-02 14:15 kernel test robot
0 siblings, 0 replies; 2+ messages in thread
From: kernel test robot @ 2023-11-02 14:15 UTC (permalink / raw)
To: Christophe Leroy; +Cc: oe-kbuild-all, linux-kernel
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 21e80f3841c01aeaf32d7aee7bbc87b3db1aa0c6
commit: b38460bc463c54e0c15ff3b37e81f7e2059bb9bb kunit: Fix checksum tests on big endian CPUs
date: 10 weeks ago
config: nios2-randconfig-r121-20231102 (https://download.01.org/0day-ci/archive/20231102/202311022246.5tfOUz5a-lkp@intel.com/config)
compiler: nios2-linux-gcc (GCC) 13.2.0
reproduce: (https://download.01.org/0day-ci/archive/20231102/202311022246.5tfOUz5a-lkp@intel.com/reproduce)
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202311022246.5tfOUz5a-lkp@intel.com/
sparse warnings: (new ones prefixed by >>)
lib/checksum_kunit.c: note: in included file:
>> arch/nios2/include/asm/checksum.h:30:24: sparse: sparse: restricted __wsum degrades to integer
>> arch/nios2/include/asm/checksum.h:30:24: sparse: sparse: restricted __wsum degrades to integer
>> arch/nios2/include/asm/checksum.h:30:24: sparse: sparse: restricted __wsum degrades to integer
>> arch/nios2/include/asm/checksum.h:30:24: sparse: sparse: restricted __wsum degrades to integer
>> arch/nios2/include/asm/checksum.h:30:24: sparse: sparse: restricted __wsum degrades to integer
vim +30 arch/nios2/include/asm/checksum.h
eea9507a69d637 Ley Foon Tan 2014-11-06 17
eea9507a69d637 Ley Foon Tan 2014-11-06 18 /*
eea9507a69d637 Ley Foon Tan 2014-11-06 19 * Fold a partial checksum
eea9507a69d637 Ley Foon Tan 2014-11-06 20 */
eea9507a69d637 Ley Foon Tan 2014-11-06 21 static inline __sum16 csum_fold(__wsum sum)
eea9507a69d637 Ley Foon Tan 2014-11-06 22 {
eea9507a69d637 Ley Foon Tan 2014-11-06 23 __asm__ __volatile__(
eea9507a69d637 Ley Foon Tan 2014-11-06 24 "add %0, %1, %0\n"
eea9507a69d637 Ley Foon Tan 2014-11-06 25 "cmpltu r8, %0, %1\n"
eea9507a69d637 Ley Foon Tan 2014-11-06 26 "srli %0, %0, 16\n"
eea9507a69d637 Ley Foon Tan 2014-11-06 27 "add %0, %0, r8\n"
eea9507a69d637 Ley Foon Tan 2014-11-06 28 "nor %0, %0, %0\n"
eea9507a69d637 Ley Foon Tan 2014-11-06 29 : "=r" (sum)
eea9507a69d637 Ley Foon Tan 2014-11-06 @30 : "r" (sum << 16), "0" (sum)
eea9507a69d637 Ley Foon Tan 2014-11-06 31 : "r8");
eea9507a69d637 Ley Foon Tan 2014-11-06 32 return (__force __sum16) sum;
eea9507a69d637 Ley Foon Tan 2014-11-06 33 }
eea9507a69d637 Ley Foon Tan 2014-11-06 34
:::::: The code at line 30 was first introduced by commit
:::::: eea9507a69d637d52705de8703b168bf6bfe5643 nios2: Library functions
:::::: TO: Ley Foon Tan <lftan@altera.com>
:::::: CC: Ley Foon Tan <lftan@altera.com>
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
^ permalink raw reply [flat|nested] 2+ messages in thread
* arch/nios2/include/asm/checksum.h:30:24: sparse: sparse: restricted __wsum degrades to integer
@ 2026-06-11 10:50 kernel test robot
0 siblings, 0 replies; 2+ messages in thread
From: kernel test robot @ 2026-06-11 10:50 UTC (permalink / raw)
To: Keith Busch
Cc: oe-kbuild-all, linux-kernel, Jens Axboe, Martin K. Petersen,
Christoph Hellwig
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 9716c086c8e8b141d35aa61f2e96a2e83de212a7
commit: 203247c5cb972af5d46bdb7d41ef40078048810b blk-integrity: support arbitrary buffer alignment
date: 3 months ago
config: nios2-randconfig-r134-20260611 (https://download.01.org/0day-ci/archive/20260611/202606111818.O5tEL43L-lkp@intel.com/config)
compiler: nios2-linux-gcc (GCC) 8.5.0
sparse: v0.6.5-rc1
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260611/202606111818.O5tEL43L-lkp@intel.com/reproduce)
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Fixes: 203247c5cb97 ("blk-integrity: support arbitrary buffer alignment")
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202606111818.O5tEL43L-lkp@intel.com/
sparse warnings: (new ones prefixed by >>)
block/t10-pi.c: note: in included file (through include/net/checksum.h):
>> arch/nios2/include/asm/checksum.h:30:24: sparse: sparse: restricted __wsum degrades to integer
vim +30 arch/nios2/include/asm/checksum.h
eea9507a69d637d Ley Foon Tan 2014-11-06 17
eea9507a69d637d Ley Foon Tan 2014-11-06 18 /*
eea9507a69d637d Ley Foon Tan 2014-11-06 19 * Fold a partial checksum
eea9507a69d637d Ley Foon Tan 2014-11-06 20 */
eea9507a69d637d Ley Foon Tan 2014-11-06 21 static inline __sum16 csum_fold(__wsum sum)
eea9507a69d637d Ley Foon Tan 2014-11-06 22 {
eea9507a69d637d Ley Foon Tan 2014-11-06 23 __asm__ __volatile__(
eea9507a69d637d Ley Foon Tan 2014-11-06 24 "add %0, %1, %0\n"
eea9507a69d637d Ley Foon Tan 2014-11-06 25 "cmpltu r8, %0, %1\n"
eea9507a69d637d Ley Foon Tan 2014-11-06 26 "srli %0, %0, 16\n"
eea9507a69d637d Ley Foon Tan 2014-11-06 27 "add %0, %0, r8\n"
eea9507a69d637d Ley Foon Tan 2014-11-06 28 "nor %0, %0, %0\n"
eea9507a69d637d Ley Foon Tan 2014-11-06 29 : "=r" (sum)
eea9507a69d637d Ley Foon Tan 2014-11-06 @30 : "r" (sum << 16), "0" (sum)
eea9507a69d637d Ley Foon Tan 2014-11-06 31 : "r8");
eea9507a69d637d Ley Foon Tan 2014-11-06 32 return (__force __sum16) sum;
eea9507a69d637d Ley Foon Tan 2014-11-06 33 }
eea9507a69d637d Ley Foon Tan 2014-11-06 34
:::::: The code at line 30 was first introduced by commit
:::::: eea9507a69d637d52705de8703b168bf6bfe5643 nios2: Library functions
:::::: TO: Ley Foon Tan <lftan@altera.com>
:::::: CC: Ley Foon Tan <lftan@altera.com>
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
^ permalink raw reply [flat|nested] 2+ messages in thread
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