[block:io_uring-5.6 1/2] fs/io_uring.c:6558:32: warning: format '%lu' expects argument of type 'long unsigned int', but argument 5 has type 'size_t {aka unsigned int}'

[block:io_uring-5.6 1/2] fs/io_uring.c:6558:32: warning: format '%lu' expects argument of type 'long unsigned int', but argument 5 has type 'size_t {aka unsigned int}'

[kbuild test robot]

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tree:   https://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux-block.git io_uring-5.6
head:   0d16cfac1608a72ceb78128a04cd2adf5e44b21a
commit: 0380f1b6d0c6b7de8e4eb0b387b7ad9f6bd065da [1/2] io_uring: add ->show_fdinfo() for the io_uring file descriptor
config: um-i386_defconfig (attached as .config)
compiler: gcc-7 (Debian 7.5.0-3) 7.5.0
reproduce:
        git checkout 0380f1b6d0c6b7de8e4eb0b387b7ad9f6bd065da
        # save the attached .config to linux build tree
        make ARCH=um SUBARCH=i386

If you fix the issue, kindly add following tag
Reported-by: kbuild test robot <lkp@intel.com>

All warnings (new ones prefixed by >>):

   fs/io_uring.c: In function '__io_uring_show_fdinfo':
>> fs/io_uring.c:6558:32: warning: format '%lu' expects argument of type 'long unsigned int', but argument 5 has type 'size_t {aka unsigned int}' [-Wformat=]
      seq_printf(m, "%5u: 0x%llx/%lu\n", i, buf->ubuf, buf->len);
                                 ~~^                   ~~~~~~~~
                                 %u

vim +6558 fs/io_uring.c

  6536	
  6537	static void __io_uring_show_fdinfo(struct io_ring_ctx *ctx, struct seq_file *m)
  6538	{
  6539		int i;
  6540	
  6541		mutex_lock(&ctx->uring_lock);
  6542		seq_printf(m, "UserFiles:\t%u\n", ctx->nr_user_files);
  6543		for (i = 0; i < ctx->nr_user_files; i++) {
  6544			struct fixed_file_table *table;
  6545			struct file *f;
  6546	
  6547			table = &ctx->file_data->table[i >> IORING_FILE_TABLE_SHIFT];
  6548			f = table->files[i & IORING_FILE_TABLE_MASK];
  6549			if (f)
  6550				seq_printf(m, "%5u: %s\n", i, file_dentry(f)->d_iname);
  6551			else
  6552				seq_printf(m, "%5u: <none>\n", i);
  6553		}
  6554		seq_printf(m, "UserBufs:\t%u\n", ctx->nr_user_bufs);
  6555		for (i = 0; i < ctx->nr_user_bufs; i++) {
  6556			struct io_mapped_ubuf *buf = &ctx->user_bufs[i];
  6557	
> 6558			seq_printf(m, "%5u: 0x%llx/%lu\n", i, buf->ubuf, buf->len);
  6559		}
  6560		if (!idr_is_empty(&ctx->personality_idr)) {
  6561			seq_printf(m, "Personalities:\n");
  6562			idr_for_each(&ctx->personality_idr, io_uring_show_cred, m);
  6563		}
  6564		mutex_unlock(&ctx->uring_lock);
  6565	}
  6566	

---
0-DAY kernel test infrastructure                 Open Source Technology Center
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org Intel Corporation

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