On 3/8/22 7:16 PM, Stephen Rothwell wrote: > Hi all, > > After merging the block tree, today's linux-next build (x86_64 > allmodconfig) failed like this: > > In file included from block/blk-mq-debugfs-zoned.c:7: > block/blk-mq-debugfs.h:24:42: error: 'struct blk_mq_hw_ctx' declared inside parameter list will not be visible outside of this definition or declaration [-Werror] > 24 | struct blk_mq_hw_ctx *hctx); > | ^~~~~~~~~~~~~ > block/blk-mq-debugfs.h:25:44: error: 'struct blk_mq_hw_ctx' declared inside parameter list will not be visible outside of this definition or declaration [-Werror] > 25 | void blk_mq_debugfs_unregister_hctx(struct blk_mq_hw_ctx *hctx); > | ^~~~~~~~~~~~~ > block/blk-mq-debugfs.h:32:47: error: 'struct blk_mq_hw_ctx' declared inside parameter list will not be visible outside of this definition or declaration [-Werror] > 32 | struct blk_mq_hw_ctx *hctx); > | ^~~~~~~~~~~~~ > block/blk-mq-debugfs.h:33:50: error: 'struct blk_mq_hw_ctx' declared inside parameter list will not be visible outside of this definition or declaration [-Werror] > 33 | void blk_mq_debugfs_unregister_sched_hctx(struct blk_mq_hw_ctx *hctx); > | ^~~~~~~~~~~~~ > cc1: all warnings being treated as errors It just needs a forward declaration. I'll fix it up. -- Jens Axboe