tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: 6a53bda3aaf3de5edeea27d0b1d8781d067640b6 commit: 5c5945dc695c54f2b55a934a10b6c4e220f9c140 [5025/9010] selftests/net: Add SHA256 computation over data sent in tcp_mmap compiler: gcc-11 (Debian 11.3.0-8) 11.3.0 reproduce: # https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=5c5945dc695c54f2b55a934a10b6c4e220f9c140 git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git git fetch --no-tags linux-next master git checkout 5c5945dc695c54f2b55a934a10b6c4e220f9c140 make O=/tmp/kselftest headers make O=/tmp/kselftest -C tools/testing/selftests If you fix the issue, kindly add following tag where applicable | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Link: https://lore.kernel.org/oe-kbuild-all/202304042104.UFIuevBp-lkp@xxxxxxxxx/ 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 >>): tcp_mmap.c: In function 'child_thread': >> tcp_mmap.c:211:61: warning: 'lu' may be used uninitialized in this function [-Wmaybe-uninitialized] 211 | zc.length = min(chunk_size, FILE_SZ - lu); | ^ -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests
