Messages in this thread | | | Date | Fri, 22 Apr 2022 04:25:55 +0800 | From | kernel test robot <> | Subject | [norov:bitmap 45/47] lib/bitmap.c:1570:17: error: initializing 'unsigned long *' with an expression of type 'const unsigned long *' discards qualifiers |
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tree: https://github.com/norov/linux bitmap head: 29f3046c8c2929f8dbe5e1cb4f25ebdd5366ebe7 commit: f1cbd19c47bf73d532ff30571601c7ede57d5f82 [45/47] lib: add bitmap_{from,to}_arr64 config: mips-allnoconfig (https://download.01.org/0day-ci/archive/20220422/202204220430.uHgyhQL9-lkp@intel.com/config) compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project bac6cd5bf85669e3376610cfc4c4f9ca015e7b9b) 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 mips cross compiling tool for clang build # apt-get install binutils-mips-linux-gnu # https://github.com/norov/linux/commit/f1cbd19c47bf73d532ff30571601c7ede57d5f82 git remote add norov https://github.com/norov/linux git fetch --no-tags norov bitmap git checkout f1cbd19c47bf73d532ff30571601c7ede57d5f82 # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=mips SHELL=/bin/bash
If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@intel.com>
All errors (new ones prefixed by >>):
>> lib/bitmap.c:1570:17: error: initializing 'unsigned long *' with an expression of type 'const unsigned long *' discards qualifiers [-Werror,-Wincompatible-pointer-types-discards-qualifiers] unsigned long *end = bitmap + BITS_TO_LONGS(nbits); ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ lib/bitmap.c:1575:22: warning: shift count >= width of type [-Wshift-count-overflow] *buf |= *bitmap++ << 32; ^ ~~ 1 warning and 1 error generated.
vim +1570 lib/bitmap.c
1561 1562 /** 1563 * bitmap_to_arr64 - copy the contents of bitmap to a u64 array of bits 1564 * @buf: array of u64 (in host byte order), the dest bitmap 1565 * @bitmap: array of unsigned longs, the source bitmap 1566 * @nbits: number of bits in @bitmap 1567 */ 1568 void bitmap_to_arr64(u64 *buf, const unsigned long *bitmap, unsigned int nbits) 1569 { > 1570 unsigned long *end = bitmap + BITS_TO_LONGS(nbits);
-- 0-DAY CI Kernel Test Service https://01.org/lkp
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