Hi Ming, [auto build test ERROR on block/for-next] [also build test ERROR on v4.13-rc3 next-20170802] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] url: https://github.com/0day-ci/linux/commits/Ming-Lei/blk-mq-sched-fix-SCSI-MQ-performance-regression/20170801-031007 base: https://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux-block.git for-next config: x86_64-randconfig-b0-08022356 (attached as .config) compiler: gcc-4.4 (Debian 4.4.7-8) 4.4.7 reproduce: # save the attached .config to linux build tree make ARCH=x86_64 All error/warnings (new ones prefixed by >>): block/blk-mq.c: In function 'blk_mq_flush_busy_ctxs': >> block/blk-mq.c:861: error: unknown field 'list' specified in initializer >> block/blk-mq.c:861: warning: missing braces around initializer block/blk-mq.c:861: warning: (near initialization for 'data.<anonymous>') block/blk-mq.c: In function 'blk_mq_dispatch_rq_from_ctxs': >> block/blk-mq.c:872: error: unknown field 'rq' specified in initializer block/blk-mq.c:872: warning: missing braces around initializer block/blk-mq.c:872: warning: (near initialization for 'data.<anonymous>') vim +/list +861 block/blk-mq.c 22e09fd59 Ming Lei 2017-08-01 852 320ae51fe Jens Axboe 2013-10-24 853 /* 1429d7c94 Jens Axboe 2014-05-19 854 * Process software queues that have been marked busy, splicing them 1429d7c94 Jens Axboe 2014-05-19 855 * to the for-dispatch 1429d7c94 Jens Axboe 2014-05-19 856 */ 2c3ad6679 Jens Axboe 2016-12-14 857 void blk_mq_flush_busy_ctxs(struct blk_mq_hw_ctx *hctx, struct list_head *list) 1429d7c94 Jens Axboe 2014-05-19 858 { 4b5ef3bbb Ming Lei 2017-08-01 859 struct ctx_iter_data data = { 88459642c Omar Sandoval 2016-09-17 860 .hctx = hctx, 88459642c Omar Sandoval 2016-09-17 @861 .list = list, 88459642c Omar Sandoval 2016-09-17 862 }; 1429d7c94 Jens Axboe 2014-05-19 863 88459642c Omar Sandoval 2016-09-17 864 sbitmap_for_each_set(&hctx->ctx_map, flush_busy_ctx, &data); 1429d7c94 Jens Axboe 2014-05-19 865 } 2c3ad6679 Jens Axboe 2016-12-14 866 EXPORT_SYMBOL_GPL(blk_mq_flush_busy_ctxs); 1429d7c94 Jens Axboe 2014-05-19 867 22e09fd59 Ming Lei 2017-08-01 868 struct request *blk_mq_dispatch_rq_from_ctxs(struct blk_mq_hw_ctx *hctx) 22e09fd59 Ming Lei 2017-08-01 869 { 22e09fd59 Ming Lei 2017-08-01 870 struct ctx_iter_data data = { 22e09fd59 Ming Lei 2017-08-01 871 .hctx = hctx, 22e09fd59 Ming Lei 2017-08-01 @872 .rq = NULL, 22e09fd59 Ming Lei 2017-08-01 873 }; 22e09fd59 Ming Lei 2017-08-01 874 22e09fd59 Ming Lei 2017-08-01 875 sbitmap_for_each_set(&hctx->ctx_map, dispatch_rq_from_ctx, &data); 22e09fd59 Ming Lei 2017-08-01 876 22e09fd59 Ming Lei 2017-08-01 877 return data.rq; 22e09fd59 Ming Lei 2017-08-01 878 } 22e09fd59 Ming Lei 2017-08-01 879 :::::: The code at line 861 was first introduced by commit :::::: 88459642cba452630326b9cab1c651e09577d4e4 blk-mq: abstract tag allocation out into sbitmap library :::::: TO: Omar Sandoval <osandov@xxxxxx> :::::: CC: Jens Axboe <axboe@xxxxxx> --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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