tree: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-5.15.y head: 820b689b4a7a6ca1b4fdabf26a17196a2e379a97 commit: 0b4e16093e081a3ab08b0d6cedf79b249f41b248 [5881/9999] selftest/vm: verify remap destination address in mremap_test compiler: gcc-11 (Debian 11.3.0-5) 11.3.0 reproduce: # https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git/commit/?id=0b4e16093e081a3ab08b0d6cedf79b249f41b248 git remote add linux-stable-rc https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git git fetch --no-tags linux-stable-rc linux-5.15.y git checkout 0b4e16093e081a3ab08b0d6cedf79b249f41b248 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> Note: the linux-stable-rc/linux-5.15.y HEAD 820b689b4a7a6ca1b4fdabf26a17196a2e379a97 builds fine. It only hurts bisectability. All errors (new ones prefixed by >>): >> mremap_test.c:126:13: error: redefinition of 'is_remap_region_valid' 126 | static bool is_remap_region_valid(void *addr, unsigned long long size) | ^~~~~~~~~~~~~~~~~~~~~ mremap_test.c:73:13: note: previous definition of 'is_remap_region_valid' with type '_Bool(void *, long long unsigned int)' 73 | static bool is_remap_region_valid(void *addr, unsigned long long size) | ^~~~~~~~~~~~~~~~~~~~~ mremap_test.c:147:27: error: redefinition of 'get_mmap_min_addr' 147 | static unsigned long long get_mmap_min_addr(void) | ^~~~~~~~~~~~~~~~~ mremap_test.c:94:27: note: previous definition of 'get_mmap_min_addr' with type 'long long unsigned int(void)' 94 | static unsigned long long get_mmap_min_addr(void) | ^~~~~~~~~~~~~~~~~ mremap_test.c:94:27: warning: 'get_mmap_min_addr' defined but not used [-Wunused-function] mremap_test.c:73:13: warning: 'is_remap_region_valid' defined but not used [-Wunused-function] 73 | static bool is_remap_region_valid(void *addr, unsigned long long size) | ^~~~~~~~~~~~~~~~~~~~~ -- 0-DAY CI Kernel Test Service https://01.org/lkp
