From: kernel test robot <lkp@intel.com>
To: David Howells <dhowells@redhat.com>
Cc: kbuild-all@lists.01.org, linux-kernel@vger.kernel.org
Subject: [dhowells-fs:fscache-iter-2 2/67] fs/fscache/io.c:164:5: error: no previous prototype for '__fscache_fallback_read_page'
Date: Wed, 29 Sep 2021 10:08:50 +0800 [thread overview]
Message-ID: <202109291043.BnplXxV6-lkp@intel.com> (raw)
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tree: https://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs.git fscache-iter-2
head: 23676c28d1a9add6ea09f19ca89b71be994a4b79
commit: b5cd0254309847abfb2eebfbcbd4415d61c5af1b [2/67] fscache: Implement a fallback I/O interface to replace the old API
config: i386-allyesconfig (attached as .config)
compiler: gcc-9 (Debian 9.3.0-22) 9.3.0
reproduce (this is a W=1 build):
# https://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs.git/commit/?id=b5cd0254309847abfb2eebfbcbd4415d61c5af1b
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 b5cd0254309847abfb2eebfbcbd4415d61c5af1b
# save the attached .config to linux build tree
make W=1 ARCH=i386
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>
All errors (new ones prefixed by >>):
>> fs/fscache/io.c:164:5: error: no previous prototype for '__fscache_fallback_read_page' [-Werror=missing-prototypes]
164 | int __fscache_fallback_read_page(struct fscache_cookie *cookie, struct page *page)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
>> fs/fscache/io.c:194:5: error: no previous prototype for '__fscache_fallback_write_page' [-Werror=missing-prototypes]
194 | int __fscache_fallback_write_page(struct fscache_cookie *cookie, struct page *page)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
fs/fscache/io.c: In function '__fscache_fallback_write_page':
>> fs/fscache/io.c:200:9: error: variable 'len' set but not used [-Werror=unused-but-set-variable]
200 | size_t len;
| ^~~
>> fs/fscache/io.c:199:9: error: variable 'start' set but not used [-Werror=unused-but-set-variable]
199 | loff_t start;
| ^~~~~
cc1: all warnings being treated as errors
vim +/__fscache_fallback_read_page +164 fs/fscache/io.c
160
161 /*
162 * Fallback page reading interface.
163 */
> 164 int __fscache_fallback_read_page(struct fscache_cookie *cookie, struct page *page)
165 {
166 struct netfs_cache_resources cres;
167 struct iov_iter iter;
168 struct bio_vec bvec[1];
169 int ret;
170
171 _enter("%lx", page->index);
172
173 memset(&cres, 0, sizeof(cres));
174 bvec[0].bv_page = page;
175 bvec[0].bv_offset = 0;
176 bvec[0].bv_len = PAGE_SIZE;
177 iov_iter_bvec(&iter, READ, bvec, ARRAY_SIZE(bvec), PAGE_SIZE);
178
179 ret = fscache_begin_read_operation(&cres, cookie);
180 if (ret < 0)
181 return ret;
182
183 ret = fscache_read(&cres, page_offset(page), &iter, NETFS_READ_HOLE_FAIL,
184 NULL, NULL);
185 fscache_end_operation(&cres);
186 _leave(" = %d", ret);
187 return ret;
188 }
189 EXPORT_SYMBOL(__fscache_fallback_read_page);
190
191 /*
192 * Fallback page writing interface.
193 */
> 194 int __fscache_fallback_write_page(struct fscache_cookie *cookie, struct page *page)
195 {
196 struct netfs_cache_resources cres;
197 struct iov_iter iter;
198 struct bio_vec bvec[1];
> 199 loff_t start;
> 200 size_t len;
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
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