tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 3cea11cd5e3b00d91caf0b4730194039b45c5891 commit: b3e79e7682e075326df8041b826b03453acacd0a mtd: physmap: Add Baikal-T1 physically mapped ROM support date: 4 weeks ago config: sparc64-randconfig-s032-20201031 (attached as .config) compiler: sparc64-linux-gcc (GCC) 9.3.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # apt-get install sparse # sparse version: v0.6.3-76-gf680124b-dirty # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=b3e79e7682e075326df8041b826b03453acacd0a git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout b3e79e7682e075326df8041b826b03453acacd0a # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=sparc64
If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <[email protected]> "sparse warnings: (new ones prefixed by >>)" >> drivers/mtd/maps/physmap-bt1-rom.c:78:18: sparse: sparse: cast removes >> address space '__iomem' of expression vim +/__iomem +78 drivers/mtd/maps/physmap-bt1-rom.c 57 58 static void __xipram bt1_rom_map_copy_from(struct map_info *map, 59 void *to, unsigned long from, 60 ssize_t len) 61 { 62 void __iomem *src = map->virt + from; 63 ssize_t shift, chunk; 64 u32 data; 65 66 if (len <= 0 || from >= map->size) 67 return; 68 69 /* Make sure we don't go over the map limit. */ 70 len = min_t(ssize_t, map->size - from, len); 71 72 /* 73 * Since requested data size can be pretty big we have to implement 74 * the copy procedure as optimal as possible. That's why it's split 75 * up into the next three stages: unaligned head, aligned body, 76 * unaligned tail. 77 */ > 78 shift = (ssize_t)src & 0x3; 79 if (shift) { 80 chunk = min_t(ssize_t, 4 - shift, len); 81 data = readl_relaxed(src - shift); 82 memcpy(to, &data + shift, chunk); 83 src += chunk; 84 to += chunk; 85 len -= chunk; 86 } 87 88 while (len >= 4) { 89 data = readl_relaxed(src); 90 memcpy(to, &data, 4); 91 src += 4; 92 to += 4; 93 len -= 4; 94 } 95 96 if (len) { 97 data = readl_relaxed(src); 98 memcpy(to, &data, len); 99 } 100 } 101 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/[email protected]
.config.gz
Description: application/gzip
