tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: 8ffc8b1bbd505e27e2c8439d326b6059c906c9dd commit: 3ce485803da1b79b2692b6d0c2792829292ad838 [9129/12944] mtd: ubi: provide NVMEM layer over UBI volumes config: hexagon-allyesconfig (https://download.01.org/0day-ci/archive/20240308/202403082209.vkIG6nqH-lkp@xxxxxxxxx/config) compiler: clang version 19.0.0git (https://github.com/llvm/llvm-project 503c55e17037436dcd45ac69dea8967e67e3f5e8) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240308/202403082209.vkIG6nqH-lkp@xxxxxxxxx/reproduce) 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@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202403082209.vkIG6nqH-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>): In file included from drivers/mtd/ubi/nvmem.c:7: In file included from drivers/mtd/ubi/ubi.h:28: In file included from include/linux/mtd/ubi.h:13: In file included from include/linux/scatterlist.h:8: In file included from include/linux/mm.h:2188: include/linux/vmstat.h:522:36: warning: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Wenum-enum-conversion] 522 | return node_stat_name(NR_LRU_BASE + lru) + 3; // skip "nr_" | ~~~~~~~~~~~ ^ ~~~ In file included from drivers/mtd/ubi/nvmem.c:7: In file included from drivers/mtd/ubi/ubi.h:28: In file included from include/linux/mtd/ubi.h:13: In file included from include/linux/scatterlist.h:9: In file included from arch/hexagon/include/asm/io.h:328: include/asm-generic/io.h:547:31: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 547 | val = __raw_readb(PCI_IOBASE + addr); | ~~~~~~~~~~ ^ include/asm-generic/io.h:560:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 560 | val = __le16_to_cpu((__le16 __force)__raw_readw(PCI_IOBASE + addr)); | ~~~~~~~~~~ ^ include/uapi/linux/byteorder/little_endian.h:37:51: note: expanded from macro '__le16_to_cpu' 37 | #define __le16_to_cpu(x) ((__force __u16)(__le16)(x)) | ^ In file included from drivers/mtd/ubi/nvmem.c:7: In file included from drivers/mtd/ubi/ubi.h:28: In file included from include/linux/mtd/ubi.h:13: In file included from include/linux/scatterlist.h:9: In file included from arch/hexagon/include/asm/io.h:328: include/asm-generic/io.h:573:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 573 | val = __le32_to_cpu((__le32 __force)__raw_readl(PCI_IOBASE + addr)); | ~~~~~~~~~~ ^ include/uapi/linux/byteorder/little_endian.h:35:51: note: expanded from macro '__le32_to_cpu' 35 | #define __le32_to_cpu(x) ((__force __u32)(__le32)(x)) | ^ In file included from drivers/mtd/ubi/nvmem.c:7: In file included from drivers/mtd/ubi/ubi.h:28: In file included from include/linux/mtd/ubi.h:13: In file included from include/linux/scatterlist.h:9: In file included from arch/hexagon/include/asm/io.h:328: include/asm-generic/io.h:584:33: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 584 | __raw_writeb(value, PCI_IOBASE + addr); | ~~~~~~~~~~ ^ include/asm-generic/io.h:594:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 594 | __raw_writew((u16 __force)cpu_to_le16(value), PCI_IOBASE + addr); | ~~~~~~~~~~ ^ include/asm-generic/io.h:604:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 604 | __raw_writel((u32 __force)cpu_to_le32(value), PCI_IOBASE + addr); | ~~~~~~~~~~ ^ drivers/mtd/ubi/nvmem.c:34:9: warning: comparison of distinct pointer types ('typeof ((lnum)) *' (aka 'int *') and 'uint64_t *' (aka 'unsigned long long *')) [-Wcompare-distinct-pointer-types] 34 | offs = do_div(lnum, unv->usable_leb_size); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/asm-generic/div64.h:222:28: note: expanded from macro 'do_div' 222 | (void)(((typeof((n)) *)0) == ((uint64_t *)0)); \ | ~~~~~~~~~~~~~~~~~~ ^ ~~~~~~~~~~~~~~~ >> drivers/mtd/ubi/nvmem.c:34:9: error: incompatible pointer types passing 'int *' to parameter of type 'uint64_t *' (aka 'unsigned long long *') [-Werror,-Wincompatible-pointer-types] 34 | offs = do_div(lnum, unv->usable_leb_size); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/asm-generic/div64.h:238:22: note: expanded from macro 'do_div' 238 | __rem = __div64_32(&(n), __base); \ | ^~~~ include/asm-generic/div64.h:213:38: note: passing argument to parameter 'dividend' here 213 | extern uint32_t __div64_32(uint64_t *dividend, uint32_t divisor); | ^ drivers/mtd/ubi/nvmem.c:34:9: warning: shift count >= width of type [-Wshift-count-overflow] 34 | offs = do_div(lnum, unv->usable_leb_size); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/asm-generic/div64.h:234:25: note: expanded from macro 'do_div' 234 | } else if (likely(((n) >> 32) == 0)) { \ | ^ ~~ include/linux/compiler.h:76:40: note: expanded from macro 'likely' 76 | # define likely(x) __builtin_expect(!!(x), 1) | ^ 9 warnings and 1 error generated. vim +34 drivers/mtd/ubi/nvmem.c 22 23 static int ubi_nvmem_reg_read(void *priv, unsigned int from, 24 void *val, size_t bytes) 25 { 26 int err = 0, lnum = from, offs, bytes_left = bytes, to_read; 27 struct ubi_nvmem *unv = priv; 28 struct ubi_volume_desc *desc; 29 30 desc = ubi_open_volume(unv->ubi_num, unv->vol_id, UBI_READONLY); 31 if (IS_ERR(desc)) 32 return PTR_ERR(desc); 33 > 34 offs = do_div(lnum, unv->usable_leb_size); 35 while (bytes_left) { 36 to_read = unv->usable_leb_size - offs; 37 38 if (to_read > bytes_left) 39 to_read = bytes_left; 40 41 err = ubi_read(desc, lnum, val, offs, to_read); 42 if (err) 43 break; 44 45 lnum += 1; 46 offs = 0; 47 bytes_left -= to_read; 48 val += to_read; 49 } 50 ubi_close_volume(desc); 51 52 if (err) 53 return err; 54 55 return bytes_left == 0 ? 0 : -EIO; 56 } 57 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
