[kbuild-all] fs/io_uring.c:2330:40: error: variable 'prev' set but not used

tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 89d714ab6043bca7356b5c823f5335f5dce1f930 commit: 6f33b0bc4ea43f5c5ce7b7c9ab66051f80837862 io_uring: use slist for completion batching date: 3 weeks ago config: m68k-allyesconfig (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/torvalds/linux.git/commit... git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout 6f33b0bc4ea43f5c5ce7b7c9ab66051f80837862 # 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(a)intel.com&gt; All errors (new ones prefixed by >>): fs/io_uring.c: In function 'io_queue_async_work': fs/io_uring.c:1455:61: error: parameter 'locked' set but not used [-Werror=unused-but-set-parameter] 1455 | static void io_queue_async_work(struct io_kiocb *req, bool *locked) | ~~~~~~^~~~~~ fs/io_uring.c: In function '__io_submit_flush_completions': 2330 | struct io_wq_work_node *node, *prev; | ^~~~ cc1: all warnings being treated as errors vim +/prev +2330 fs/io_uring.c 2326 2327 static void __io_submit_flush_completions(struct io_ring_ctx *ctx) 2328 __must_hold(&ctx->uring_lock) 2329 { 2331 struct io_submit_state *state = &ctx->submit_state; 2332 struct req_batch rb; 2333 2334 spin_lock(&ctx->completion_lock); 2335 wq_list_for_each(node, prev, &state->compl_reqs) { 2336 struct io_kiocb *req = container_of(node, struct io_kiocb, 2337 comp_list); 2338 2339 __io_cqring_fill_event(ctx, req->user_data, req->result, 2340 req->compl.cflags); 2341 } 2342 io_commit_cqring(ctx); 2343 spin_unlock(&ctx->completion_lock); 2344 io_cqring_ev_posted(ctx); 2345 2346 io_init_req_batch(&rb); 2347 node = state->compl_reqs.first; 2348 do { 2349 struct io_kiocb *req = container_of(node, struct io_kiocb, 2350 comp_list); 2351 2352 node = req->comp_list.next; 2353 if (req_ref_put_and_test(req)) 2354 io_req_free_batch(&rb, req, &ctx->submit_state); 2355 } while (node); 2356 2357 io_req_free_batch_finish(ctx, &rb); 2358 INIT_WQ_LIST(&state->compl_reqs); 2359 } 2360 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org