linux-next: build failure after merge of the block tree

[Stephen Rothwell]

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

I have no idea what has caused this.

I have used the block tree from next-20220308 for today.

-- 
Cheers,
Stephen Rothwell

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