Hi Paolo, I love your patch! Perhaps something to improve: [auto build test WARNING on block/for-next] [cannot apply to v5.11-rc5 next-20210125] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch] url: https://github.com/0day-ci/linux/commits/Paolo-Valente/block-bfq-third-and-last-batch-of-fixes-and-improvements/20210127-090045 base: https://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux-block.git for-next config: nds32-randconfig-r033-20210126 (attached as .config) compiler: nds32le-linux-gcc (GCC) 9.3.0 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://github.com/0day-ci/linux/commit/2d32d2f7e624f94a180d6a6acfeea65c0c511fe1 git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Paolo-Valente/block-bfq-third-and-last-batch-of-fixes-and-improvements/20210127-090045 git checkout 2d32d2f7e624f94a180d6a6acfeea65c0c511fe1 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=nds32 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All warnings (new ones prefixed by >>): >> block/bfq-iosched.c:5340:1: warning: no previous prototype for 'bfq_do_early_stable_merge' [-Wmissing-prototypes] 5340 | bfq_do_early_stable_merge(struct bfq_data *bfqd, struct bfq_queue *bfqq, | ^~~~~~~~~~~~~~~~~~~~~~~~~ vim +/bfq_do_early_stable_merge +5340 block/bfq-iosched.c 5338 5339 struct bfq_queue * > 5340 bfq_do_early_stable_merge(struct bfq_data *bfqd, struct bfq_queue *bfqq, 5341 struct bfq_io_cq *bic, 5342 struct bfq_queue *last_bfqq_created) 5343 { 5344 struct bfq_queue *new_bfqq = 5345 bfq_setup_merge(bfqq, last_bfqq_created); 5346 5347 if (!new_bfqq) 5348 return bfqq; 5349 5350 if (new_bfqq->bic) 5351 new_bfqq->bic->stably_merged = true; 5352 bic->stably_merged = true; 5353 5354 /* 5355 * Reusing merge functions. This implies that 5356 * bfqq->bic must be set too, for 5357 * bfq_merge_bfqqs to correctly save bfqq's 5358 * state before killing it. 5359 */ 5360 bfqq->bic = bic; 5361 bfq_merge_bfqqs(bfqd, bic, bfqq, new_bfqq); 5362 5363 return new_bfqq; 5364 } 5365 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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