tree: https://gitee.com/openeuler/kernel.git openEuler-1.0-LTS head: 9b2f1457c730cd7915663ac5d9ccb849f2657714 commit: be13c6c633412a576f1a666c07dbaae19331b0fc [17755/23827] Intel: device-dax: "Hotplug" persistent memory for use like normal RAM config: x86_64-buildonly-randconfig-003-20241010 (https://download.01.org/0day-ci/archive/20241012/202410120614.DTc2PtdL-lkp@i...) compiler: clang version 18.1.8 (https://github.com/llvm/llvm-project 3b5b5c1ec4a3095ab096dd780e84d7ab81f3d7ff) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241012/202410120614.DTc2PtdL-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/202410120614.DTc2PtdL-lkp@intel.com/ All warnings (new ones prefixed by >>): In file included from drivers/dax/kmem.c:4: 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; | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/dax/kmem.c:17:5: warning: no previous prototype for function 'dev_dax_kmem_probe' [-Wmissing-prototypes] 17 | int dev_dax_kmem_probe(struct device *dev) | ^ drivers/dax/kmem.c:17:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 17 | int dev_dax_kmem_probe(struct device *dev) | ^ | static 2 warnings generated.

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drivers/dax/kmem.o: warning: objtool: missing symbol for section .init.text

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