Hi Peng, FYI, the error/warning still remains. tree: https://github.com/Freescale/linux-fslc pr/256 head: 833dfde20a84e72abea15e51e24b5027091c864c commit: ad144fec7a113f7abafcf29e24aa841782d40935 [8790/16397] MLK-23754-19 remoteproc: add rproc_memcpy config: i386-randconfig-p001-20210213 (attached as .config) compiler: gcc-9 (Debian 9.3.0-15) 9.3.0 reproduce (this is a W=1 build): # https://github.com/Freescale/linux-fslc/commit/ad144fec7a113f7abafcf29e24... git remote add freescale-fslc https://github.com/Freescale/linux-fslc git fetch --no-tags freescale-fslc pr/256 git checkout ad144fec7a113f7abafcf29e24aa841782d40935 # save the attached .config to linux build tree make W=1 ARCH=i386 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All errors (new ones prefixed by >>): drivers/remoteproc/remoteproc_core.c: In function 'rproc_memcpy': 85 | return rproc->ops->memcpy(rproc, dest, src, count, flags); | ^ In file included from arch/x86/include/asm/string.h:3, from include/linux/string.h:20, from arch/x86/include/asm/page_32.h:35, from arch/x86/include/asm/page.h:14, from arch/x86/include/asm/thread_info.h:12, from include/linux/thread_info.h:38, from arch/x86/include/asm/preempt.h:7, from include/linux/preempt.h:78, from include/linux/spinlock.h:51, from include/linux/seqlock.h:36, from include/linux/time.h:6, from include/linux/stat.h:19, from include/linux/module.h:10, from drivers/remoteproc/remoteproc_core.c:20: arch/x86/include/asm/string_32.h:182: note: macro "memcpy" defined here 182 | #define memcpy(t, f, n) __builtin_memcpy(t, f, n) | drivers/remoteproc/remoteproc_core.c: In function 'rproc_find_carveout_by_name': drivers/remoteproc/remoteproc_core.c:271:2: warning: function 'rproc_find_carveout_by_name' might be a candidate for 'gnu_printf' format attribute [-Wsuggest-attribute=format] 271 | vsnprintf(_name, sizeof(_name), name, args); | ^~~~~~~~~ drivers/remoteproc/remoteproc_core.c: In function 'rproc_mem_entry_init': drivers/remoteproc/remoteproc_core.c:1000:2: warning: function 'rproc_mem_entry_init' might be a candidate for 'gnu_printf' format attribute [-Wsuggest-attribute=format] 1000 | vsnprintf(mem->name, sizeof(mem->name), name, args); | ^~~~~~~~~ drivers/remoteproc/remoteproc_core.c: In function 'rproc_of_resm_mem_entry_init': drivers/remoteproc/remoteproc_core.c:1036:2: warning: function 'rproc_of_resm_mem_entry_init' might be a candidate for 'gnu_printf' format attribute [-Wsuggest-attribute=format] 1036 | vsnprintf(mem->name, sizeof(mem->name), name, args); | ^~~~~~~~~ vim +/memcpy +85 drivers/remoteproc/remoteproc_core.c 73 74 /* 75 * rproc_memcpy() - memcpy verison for remoteproc usage 76 * @flags: 77 * - 0 means to DA 78 * - 1 means from DA 79 * 80 */ 81 void *rproc_memcpy(struct rproc *rproc, void *dest, 82 const void *src, size_t count, int flags) 83 { 84 if (rproc->ops->memcpy) 86 87 return memcpy(dest, src, count); 88 } 89 EXPORT_SYMBOL(rproc_memcpy); 90 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org