linux-kernel - Re: [PATCH v2 1/3] iomap: pass blocksize to iomap_truncate

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Message-ID: <202405170624.liC4qYj3-lkp@intel.com>
Date: Fri, 17 May 2024 07:03:46 +0800
From: kernel test robot <lkp@...el.com>
To: Zhang Yi <yi.zhang@...weicloud.com>, linux-xfs@...r.kernel.org,
	linux-fsdevel@...r.kernel.org
Cc: oe-kbuild-all@...ts.linux.dev, linux-kernel@...r.kernel.org,
	linux-ext4@...r.kernel.org, djwong@...nel.org, hch@...radead.org,
	brauner@...nel.org, david@...morbit.com, chandanbabu@...nel.org,
	jack@...e.cz, yi.zhang@...wei.com, yi.zhang@...weicloud.com,
	chengzhihao1@...wei.com, yukuai3@...wei.com
Subject: Re: [PATCH v2 1/3] iomap: pass blocksize to iomap_truncate_page()

Hi Zhang,

kernel test robot noticed the following build warnings:

[auto build test WARNING on brauner-vfs/vfs.all]
[also build test WARNING on linus/master v6.9 next-20240516]
[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/Zhang-Yi/iomap-pass-blocksize-to-iomap_truncate_page/20240516-154238
base:   https://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs.git vfs.all
patch link:    https://lore.kernel.org/r/20240516073001.1066373-2-yi.zhang%40huaweicloud.com
patch subject: [PATCH v2 1/3] iomap: pass blocksize to iomap_truncate_page()
config: arm-randconfig-r111-20240517 (https://download.01.org/0day-ci/archive/20240517/202405170624.liC4qYj3-lkp@intel.com/config)
compiler: arm-linux-gnueabi-gcc (GCC) 13.2.0
reproduce: (https://download.01.org/0day-ci/archive/20240517/202405170624.liC4qYj3-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@...el.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202405170624.liC4qYj3-lkp@intel.com/

sparse warnings: (new ones prefixed by >>)
>> fs/iomap/buffered-io.c:1453:28: sparse: sparse: incompatible types in comparison expression (different signedness):
   fs/iomap/buffered-io.c:1453:28: sparse:    long long *
   fs/iomap/buffered-io.c:1453:28: sparse:    unsigned long long [usertype] *

vim +1453 fs/iomap/buffered-io.c

  1446	
  1447	int
  1448	iomap_truncate_page(struct inode *inode, loff_t pos, unsigned int blocksize,
  1449			bool *did_zero, const struct iomap_ops *ops)
  1450	{
  1451		loff_t start = pos;
  1452		unsigned int off = is_power_of_2(blocksize) ? (pos & (blocksize - 1)) :
> 1453				   do_div(pos, blocksize);
  1454	
  1455		/* Block boundary? Nothing to do */
  1456		if (!off)
  1457			return 0;
  1458		return iomap_zero_range(inode, start, blocksize - off, did_zero, ops);
  1459	}
  1460	EXPORT_SYMBOL_GPL(iomap_truncate_page);
  1461	

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki