Messages in this thread | | | Date | Wed, 15 Sep 2021 04:31:00 +0800 | From | kernel test robot <> | Subject | [dhowells-fs:fscache-iter-3 2/8] fs/fscache/io.c:164:5: warning: no previous prototype for '__fscache_deprecated_read_page' |
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tree: https://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs.git fscache-iter-3 head: 3af24cee1e80003b6c8993fa8a601cc0ab9fd6c6 commit: b5606e77b36d6218ef5367fcdbebcbfa1af091bc [2/8] fscache: Implement an alternate I/O interface to replace the old API config: arc-randconfig-r043-20210915 (attached as .config) compiler: arc-elf-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=b5606e77b36d6218ef5367fcdbebcbfa1af091bc 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-3 git checkout b5606e77b36d6218ef5367fcdbebcbfa1af091bc # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross ARCH=arc
If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@intel.com>
All warnings (new ones prefixed by >>):
>> fs/fscache/io.c:164:5: warning: no previous prototype for '__fscache_deprecated_read_page' [-Wmissing-prototypes] 164 | int __fscache_deprecated_read_page(struct fscache_cookie *cookie, struct page *page) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ >> fs/fscache/io.c:194:5: warning: no previous prototype for '__fscache_deprecated_write_page' [-Wmissing-prototypes] 194 | int __fscache_deprecated_write_page(struct fscache_cookie *cookie, struct page *page) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ fs/fscache/io.c: In function '__fscache_deprecated_write_page': fs/fscache/io.c:200:16: warning: variable 'len' set but not used [-Wunused-but-set-variable] 200 | size_t len; | ^~~ fs/fscache/io.c:199:16: warning: variable 'start' set but not used [-Wunused-but-set-variable] 199 | loff_t start; | ^~~~~
vim +/__fscache_deprecated_read_page +164 fs/fscache/io.c
160 161 /* 162 * Deprecated page reading interface. 163 */ > 164 int __fscache_deprecated_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_deprecated_read_page); 190 191 /* 192 * Deprecated page writing interface. 193 */ > 194 int __fscache_deprecated_write_page(struct fscache_cookie *cookie, struct page *page)
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