[PATCH v3 1/3] riscv: optimized memcpy
kernel test robot
lkp at intel.com
Fri Jun 18 07:06:03 PDT 2021
Hi Matteo,
Thank you for the patch! Perhaps something to improve:
[auto build test WARNING on linux/master]
[also build test WARNING on linus/master v5.13-rc6 next-20210617]
[cannot apply to atish-riscv-linux/topo_v3]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]
url: https://github.com/0day-ci/linux/commits/Matteo-Croce/riscv-optimized-mem-functions/20210617-232934
base: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git dd860052c99b1e088352bdd4fb7aef46f8d2ef47
config: riscv-randconfig-r031-20210618 (attached as .config)
compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project 64720f57bea6a6bf033feef4a5751ab9c0c3b401)
reproduce (this is a W=1 build):
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# install riscv cross compiling tool for clang build
# apt-get install binutils-riscv64-linux-gnu
# https://github.com/0day-ci/linux/commit/c35a3474b6782645ff0695db1f30be0e8123c131
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review Matteo-Croce/riscv-optimized-mem-functions/20210617-232934
git checkout c35a3474b6782645ff0695db1f30be0e8123c131
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=riscv
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp at intel.com>
All warnings (new ones prefixed by >>):
>> arch/riscv/lib/string.c:90:57: warning: attribute declaration must precede definition [-Wignored-attributes]
void *memcpy(void *dest, const void *src, size_t count) __weak __alias(__memcpy);
^
include/linux/compiler_attributes.h:291:56: note: expanded from macro '__weak'
#define __weak __attribute__((__weak__))
^
include/linux/fortify-string.h:178:24: note: previous definition is here
__FORTIFY_INLINE void *memcpy(void *p, const void *q, __kernel_size_t size)
^
1 warning generated.
Kconfig warnings: (for reference only)
WARNING: unmet direct dependencies detected for LOCKDEP
Depends on DEBUG_KERNEL && LOCK_DEBUGGING_SUPPORT && (FRAME_POINTER || MIPS || PPC || S390 || MICROBLAZE || ARM || ARC || X86)
Selected by
- PROVE_LOCKING && DEBUG_KERNEL && LOCK_DEBUGGING_SUPPORT
- LOCK_STAT && DEBUG_KERNEL && LOCK_DEBUGGING_SUPPORT
- DEBUG_LOCK_ALLOC && DEBUG_KERNEL && LOCK_DEBUGGING_SUPPORT
vim +90 arch/riscv/lib/string.c
89
> 90 void *memcpy(void *dest, const void *src, size_t count) __weak __alias(__memcpy);
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
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