Hi,
在 2024/08/23 6:07, kernel test robot 写道:
Hi Yu,
kernel test robot noticed the following build warnings:
[auto build test WARNING on device-mapper-dm/for-next]
[also build test WARNING on linus/master v6.11-rc4 next-20240822]
[cannot apply to song-md/md-next]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]
url: https://github.com/intel-lab-lkp/linux/commits/Yu-Kuai/md-raid1-use-md_bitmap_wait_behind_writes-in-raid1_read_request/20240822-110233
base: https://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm.git for-next
patch link: https://lore.kernel.org/r/20240822024718.2158259-6-yukuai1%40huaweicloud.com
patch subject: [PATCH md-6.12 05/41] md/md-bitmap: add 'sync_size' into struct md_bitmap_stats
config: x86_64-randconfig-121-20240822 (https://download.01.org/0day-ci/archive/20240823/202408230544.w18wb47U-lkp@xxxxxxxxx/config)
compiler: clang version 18.1.5 (https://github.com/llvm/llvm-project 617a15a9eac96088ae5e9134248d8236e34b91b1)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240823/202408230544.w18wb47U-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/202408230544.w18wb47U-lkp@xxxxxxxxx/
sparse warnings: (new ones prefixed by >>)
drivers/md/md-bitmap.c:2106:26: sparse: sparse: incorrect type in assignment (different base types) @@ expected unsigned long sync_size @@ got restricted __le64 [usertype] sync_size @@
drivers/md/md-bitmap.c:2106:26: sparse: expected unsigned long sync_size
drivers/md/md-bitmap.c:2106:26: sparse: got restricted __le64 [usertype] sync_size
So this is actually the old code behavior. I'll fix this. :)
Thanks,
Kuai
drivers/md/md-bitmap.c: note: in included file (through include/linux/mmzone.h, include/linux/gfp.h, include/linux/xarray.h, ...):
include/linux/page-flags.h:235:46: sparse: sparse: self-comparison always evaluates to false
include/linux/page-flags.h:235:46: sparse: sparse: self-comparison always evaluates to false
vim +2106 drivers/md/md-bitmap.c
2096
2097 int md_bitmap_get_stats(struct bitmap *bitmap, struct md_bitmap_stats *stats)
2098 {
2099 struct bitmap_counts *counts;
2100 bitmap_super_t *sb;
2101
2102 if (!bitmap)
2103 return -ENOENT;
2104
2105 sb = kmap_local_page(bitmap->storage.sb_page);
2106 stats->sync_size = sb->sync_size;
2107 kunmap_local(sb);
2108
2109 counts = &bitmap->counts;
2110 stats->missing_pages = counts->missing_pages;
2111 stats->pages = counts->pages;
2112
2113 stats->events_cleared = bitmap->events_cleared;
2114 stats->file = bitmap->storage.file;
2115
2116 return 0;
2117 }
2118 EXPORT_SYMBOL_GPL(md_bitmap_get_stats);
2119
