* [device-mapper-dm:for-next 19/24] drivers/md/dm-ioctl.c:1402:15: warning: format specifies type 'unsigned long' but the argument has type 'unsigned int'
@ 2023-06-23 3:22 kernel test robot
0 siblings, 0 replies; only message in thread
From: kernel test robot @ 2023-06-23 3:22 UTC (permalink / raw)
To: Demi Marie Obenour
Cc: llvm, oe-kbuild-all, dm-devel, Mike Snitzer, Mikulas Patocka
tree: https://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm.git for-next
head: 7d8bae011ec676d6c0a6ea18f2b74c9c32d57849
commit: 5df1daff2cc63af7971c0643134f3372aa3b33a1 [19/24] dm ioctl: Check dm_target_spec is sufficiently aligned
config: hexagon-randconfig-r041-20230622 (https://download.01.org/0day-ci/archive/20230623/202306231121.8VDClqLC-lkp@intel.com/config)
compiler: clang version 17.0.0 (https://github.com/llvm/llvm-project.git 4a5ac14ee968ff0ad5d2cc1ffa0299048db4c88a)
reproduce: (https://download.01.org/0day-ci/archive/20230623/202306231121.8VDClqLC-lkp@intel.com/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@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202306231121.8VDClqLC-lkp@intel.com/
All warnings (new ones prefixed by >>):
In file included from drivers/md/dm-ioctl.c:9:
In file included from drivers/md/dm-core.h:15:
In file included from include/linux/blk-mq.h:5:
In file included from include/linux/blkdev.h:9:
In file included from include/linux/blk_types.h:10:
In file included from include/linux/bvec.h:10:
In file included from include/linux/highmem.h:12:
In file included from include/linux/hardirq.h:11:
In file included from ./arch/hexagon/include/generated/asm/hardirq.h:1:
In file included from include/asm-generic/hardirq.h:17:
In file included from include/linux/irq.h:20:
In file included from include/linux/io.h:13:
In file included from arch/hexagon/include/asm/io.h:334:
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/md/dm-ioctl.c:9:
In file included from drivers/md/dm-core.h:15:
In file included from include/linux/blk-mq.h:5:
In file included from include/linux/blkdev.h:9:
In file included from include/linux/blk_types.h:10:
In file included from include/linux/bvec.h:10:
In file included from include/linux/highmem.h:12:
In file included from include/linux/hardirq.h:11:
In file included from ./arch/hexagon/include/generated/asm/hardirq.h:1:
In file included from include/asm-generic/hardirq.h:17:
In file included from include/linux/irq.h:20:
In file included from include/linux/io.h:13:
In file included from arch/hexagon/include/asm/io.h:334:
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/md/dm-ioctl.c:9:
In file included from drivers/md/dm-core.h:15:
In file included from include/linux/blk-mq.h:5:
In file included from include/linux/blkdev.h:9:
In file included from include/linux/blk_types.h:10:
In file included from include/linux/bvec.h:10:
In file included from include/linux/highmem.h:12:
In file included from include/linux/hardirq.h:11:
In file included from ./arch/hexagon/include/generated/asm/hardirq.h:1:
In file included from include/asm-generic/hardirq.h:17:
In file included from include/linux/irq.h:20:
In file included from include/linux/io.h:13:
In file included from arch/hexagon/include/asm/io.h:334:
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/md/dm-ioctl.c:1402:15: warning: format specifies type 'unsigned long' but the argument has type 'unsigned int' [-Wformat]
1402 | DMERR("Next dm_target_spec (offset %u) is not %lu-byte aligned",
| ~~~
| %u
1403 | next, __alignof__(struct dm_target_spec));
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/device-mapper.h:626:47: note: expanded from macro 'DMERR'
626 | #define DMERR(fmt, ...) pr_err(DM_FMT(fmt), ##__VA_ARGS__)
| ~~~ ^~~~~~~~~~~
include/linux/printk.h:498:33: note: expanded from macro 'pr_err'
498 | printk(KERN_ERR pr_fmt(fmt), ##__VA_ARGS__)
| ~~~ ^~~~~~~~~~~
include/linux/printk.h:455:60: note: expanded from macro 'printk'
455 | #define printk(fmt, ...) printk_index_wrap(_printk, fmt, ##__VA_ARGS__)
| ~~~ ^~~~~~~~~~~
include/linux/printk.h:427:19: note: expanded from macro 'printk_index_wrap'
427 | _p_func(_fmt, ##__VA_ARGS__); \
| ~~~~ ^~~~~~~~~~~
7 warnings generated.
vim +1402 drivers/md/dm-ioctl.c
1393
1394 static int next_target(struct dm_target_spec *last, uint32_t next, void *end,
1395 struct dm_target_spec **spec, char **target_params)
1396 {
1397 static_assert(__alignof__(struct dm_target_spec) <= 8,
1398 "struct dm_target_spec must not require more than 8-byte alignment");
1399
1400 if (next % __alignof__(struct dm_target_spec)) {
1401 DMERR("Next dm_target_spec (offset %u) is not %lu-byte aligned",
> 1402 next, __alignof__(struct dm_target_spec));
1403 return -EINVAL;
1404 }
1405
1406 *spec = (struct dm_target_spec *) ((unsigned char *) last + next);
1407 *target_params = (char *) (*spec + 1);
1408
1409 if (*spec < (last + 1))
1410 return -EINVAL;
1411
1412 return invalid_str(*target_params, end);
1413 }
1414
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
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