tree: https://gitee.com/openeuler/kernel.git openEuler-1.0-LTS head: 1330b01bfe2848940261b9b533d2d59d0148f8ab commit: be13c6c633412a576f1a666c07dbaae19331b0fc [1648/1648] Intel: device-dax: "Hotplug" persistent memory for use like normal RAM config: x86_64-buildonly-randconfig-003-20250522 (https://download.01.org/0day-ci/archive/20250525/202505250310.6ik504yZ-lkp@i...) compiler: gcc-12 (Debian 12.2.0-14) 12.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250525/202505250310.6ik504yZ-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/202505250310.6ik504yZ-lkp@intel.com/ All warnings (new ones prefixed by >>): drivers/dax/kmem.c:17:5: warning: no previous prototype for 'dev_dax_kmem_probe' [-Wmissing-prototypes] 17 | int dev_dax_kmem_probe(struct device *dev) | ^~~~~~~~~~~~~~~~~~

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

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