tree: https://gitee.com/openeuler/kernel.git openEuler-1.0-LTS head: faa52e40c08916893e09ba030e616f92e4fc020b commit: 193a981127632c7d4c26a0674881dea0c208640c [1321/1321] dm verity: add root hash pkcs#7 signature verification config: x86_64-buildonly-randconfig-002-20241205 (https://download.01.org/0day-ci/archive/20241210/202412100348.mRc9n69R-lkp@i...) compiler: clang version 19.1.3 (https://github.com/llvm/llvm-project ab51eccf88f5321e7c60591c5546b254b6afab99) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241210/202412100348.mRc9n69R-lkp@i...)

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/202412100348.mRc9n69R-lkp@intel.com/

All warnings (new ones prefixed by >>):

In file included from drivers/md/dm-verity-verify-sig.c:8: In file included from include/linux/device-mapper.h:12: In file included from include/linux/blkdev.h:16: include/linux/pagemap.h:425:21: warning: cast from 'int (*)(struct file *, struct page *)' to 'filler_t *' (aka 'int (*)(void *, struct page *)') converts to incompatible function type [-Wcast-function-type-strict] 425 | filler_t *filler = (filler_t *)mapping->a_ops->readpage; | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 1 warning generated.

...

drivers/md/dm-verity-verify-sig.o: warning: objtool: missing symbol for section .text