tree: https://gitee.com/openeuler/kernel.git openEuler-1.0-LTS head: 773f731853f1368508a0b112047bd9b5a4bb9a5e commit: 2facb5901ceebe6736c0d192ca50be5d26c70ad9 [1356/1356] ascend: vmalloc: export new function for share pool config: x86_64-buildonly-randconfig-002-20241228 (https://download.01.org/0day-ci/archive/20241229/202412291858.fE0rwXZl-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/20241229/202412291858.fE0rwXZl-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/202412291858.fE0rwXZl-lkp@intel.com/

All warnings (new ones prefixed by >>):

In file included from mm/vmalloc.c:43: In file included from mm/internal.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; | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ mm/vmalloc.c:231:16: warning: variable 'start' set but not used [-Wunused-but-set-variable] 231 | unsigned long start; | ^ mm/vmalloc.c:628:14: warning: no previous prototype for function 'vmalloc_to_hugepage' [-Wmissing-prototypes] 628 | struct page *vmalloc_to_hugepage(const void *vmalloc_addr) | ^ mm/vmalloc.c:628:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 628 | struct page *vmalloc_to_hugepage(const void *vmalloc_addr) | ^ | static 3 warnings generated. mm/vmalloc.c:3504: warning: Function parameter or member 'align' not described in 'pvm_determine_end_from_reverse'

...

mm/vmalloc.o: warning: objtool: vmap_range_noflush()+0x822: unreachable instruction