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Wed, 01 Jun 2022 21:29:20 +0000 Date: Thu, 2 Jun 2022 05:28:56 +0800 From: kernel test robot To: David Howells Cc: kbuild-all@lists.01.org, GNU/Weeb Mailing List , linux-kernel@vger.kernel.org Subject: [ammarfaizi2-block:dhowells/linux-fs/netfs-linked-list 37/59] fs/netfs/output.c:274:32: warning: unused variable 'cookie' Message-ID: <202206020506.JJRuspb2-lkp@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org tree: https://github.com/ammarfaizi2/linux-block dhowells/linux-fs/netfs-linked-list head: 22ecc2fcdab4616e624408911ec1d54644e82030 commit: 5c1c3ba2afbf95dfbd1cb36cae7a28e20c4eaace [37/59] netfs: Dispatch write requests to process a writeback slice config: x86_64-defconfig (https://download.01.org/0day-ci/archive/20220602/202206020506.JJRuspb2-lkp@intel.com/config) compiler: gcc-11 (Debian 11.3.0-1) 11.3.0 reproduce (this is a W=1 build): # https://github.com/ammarfaizi2/linux-block/commit/5c1c3ba2afbf95dfbd1cb36cae7a28e20c4eaace git remote add ammarfaizi2-block https://github.com/ammarfaizi2/linux-block git fetch --no-tags ammarfaizi2-block dhowells/linux-fs/netfs-linked-list git checkout 5c1c3ba2afbf95dfbd1cb36cae7a28e20c4eaace # save the config file mkdir build_dir && cp config build_dir/.config make W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash fs/netfs/ If you fix the issue, kindly add following tag where applicable Reported-by: kernel test robot All warnings (new ones prefixed by >>): fs/netfs/output.c: In function 'netfs_set_up_write_to_cache': >> fs/netfs/output.c:274:32: warning: unused variable 'cookie' [-Wunused-variable] 274 | struct fscache_cookie *cookie = netfs_i_cookie(wreq->inode); | ^~~~~~ vim +/cookie +274 fs/netfs/output.c 266 267 /* 268 * Set up a op for writing to the cache. 269 */ 270 static void netfs_set_up_write_to_cache(struct netfs_io_request *wreq) 271 { 272 struct netfs_cache_resources *cres; 273 struct netfs_io_subrequest *subreq; > 274 struct fscache_cookie *cookie = netfs_i_cookie(wreq->inode); 275 loff_t start = wreq->first * PAGE_SIZE; 276 size_t len = (wreq->last - wreq->first + 1) * PAGE_SIZE; 277 int ret; 278 279 if (!fscache_cookie_enabled(cookie)) { 280 clear_bit(NETFS_RREQ_WRITE_TO_CACHE, &wreq->flags); 281 return; 282 } 283 284 _debug("write to cache"); 285 subreq = netfs_create_write_request(wreq, NETFS_WRITE_TO_CACHE, start, len, 286 netfs_write_to_cache_op_worker); 287 if (!subreq) 288 return; 289 290 cres = &wreq->cache_resources; 291 ret = -ENOBUFS; 292 if (wreq->netfs_ops->begin_cache_operation) 293 ret = wreq->netfs_ops->begin_cache_operation(wreq); 294 if (ret < 0) { 295 netfs_write_subrequest_terminated(subreq, ret, false); 296 return; 297 } 298 299 ret = cres->ops->prepare_write(cres, &start, &len, i_size_read(wreq->inode), 300 true); 301 if (ret < 0) { 302 netfs_write_subrequest_terminated(subreq, ret, false); 303 return; 304 } 305 306 netfs_queue_write_request(subreq); 307 } 308 -- 0-DAY CI Kernel Test Service https://01.org/lkp