linux-kernel - [dhowells-fs:fscache-iter-2 74/74] fs/fscache/io.c:366:61: warning: implicit conversion from 'enum <anonymous>' to 'enum netfs_read_from

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Message-ID: <202108281133.gmq5qIcJ-lkp@intel.com>
Date:   Sat, 28 Aug 2021 11:59:39 +0800
From:   kernel test robot <lkp@...el.com>
To:     David Howells <dhowells@...hat.com>
Cc:     kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org
Subject: [dhowells-fs:fscache-iter-2 74/74] fs/fscache/io.c:366:61: warning:
 implicit conversion from 'enum <anonymous>' to 'enum netfs_read_from_hole'

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs.git fscache-iter-2
head:   28d7bc7b5030ef7829d8e21696522adbf0ae90e4
commit: 28d7bc7b5030ef7829d8e21696522adbf0ae90e4 [74/74] nfs: Implement old I/O interface
config: m68k-allmodconfig (attached as .config)
compiler: m68k-linux-gcc (GCC) 11.2.0
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # https://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs.git/commit/?id=28d7bc7b5030ef7829d8e21696522adbf0ae90e4
        git remote add dhowells-fs https://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs.git
        git fetch --no-tags dhowells-fs fscache-iter-2
        git checkout 28d7bc7b5030ef7829d8e21696522adbf0ae90e4
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross ARCH=m68k 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@...el.com>

All warnings (new ones prefixed by >>):

   fs/fscache/io.c: In function '__fscache_deprecated_read_page':
>> fs/fscache/io.c:366:61: warning: implicit conversion from 'enum <anonymous>' to 'enum netfs_read_from_hole' [-Wenum-conversion]
     366 |         ret = fscache_read(&cres, page_offset(page), &iter, true, NULL, NULL);
         |                                                             ^~~~


vim +366 fs/fscache/io.c

   344	
   345	/*
   346	 * Deprecated page reading interface.
   347	 */
   348	int __fscache_deprecated_read_page(struct fscache_cookie *cookie, struct page *page)
   349	{
   350		struct netfs_cache_resources cres;
   351		struct iov_iter iter;
   352		struct bio_vec bvec[1];
   353		int ret;
   354	
   355		memset(&cres, 0, sizeof(cres));
   356		bvec[0].bv_page		= page;
   357		bvec[0].bv_offset	= 0;
   358		bvec[0].bv_len		= PAGE_SIZE;
   359		iov_iter_bvec(&iter, READ, bvec, ARRAY_SIZE(bvec), PAGE_SIZE);
   360	
   361		ret = fscache_begin_operation(&cres, cookie, FSCACHE_WANT_READ,
   362					      fscache_access_io_read);
   363		if (ret < 0)
   364			return ret;
   365	
 > 366		ret = fscache_read(&cres, page_offset(page), &iter, true, NULL, NULL);
   367		fscache_end_operation(&cres);
   368		return ret;
   369	}
   370	EXPORT_SYMBOL(__fscache_deprecated_read_page);
   371	

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org

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