Re: [PATCH 6/6] blk-mq: manage hctx map via xarray

[kernel test robot <lkp@intel.com>]

Hi Ming,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on axboe-block/for-next]
[also build test WARNING on v5.17-rc6 next-20220225]
[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/Ming-Lei/blk-mq-update_nr_hw_queues-related-improvement-bugfix/20220228-170706
base:   https://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux-block.git for-next
config: alpha-allyesconfig (https://download.01.org/0day-ci/archive/20220301/202203010021.zTuzL2PG-lkp@intel.com/config)
compiler: alpha-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://github.com/0day-ci/linux/commit/176e39bc0acb20f8fd869d170b429b7253b089c4
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Ming-Lei/blk-mq-update_nr_hw_queues-related-improvement-bugfix/20220228-170706
        git checkout 176e39bc0acb20f8fd869d170b429b7253b089c4
        # save the config file to linux build tree
        mkdir build_dir
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=alpha SHELL=/bin/bash

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>

All warnings (new ones prefixed by >>):

   In file included from block/blk-mq-debugfs-zoned.c:7:
>> block/blk-mq-debugfs.h:24:42: warning: 'struct blk_mq_hw_ctx' declared inside parameter list will not be visible outside of this definition or declaration
      24 |                                   struct blk_mq_hw_ctx *hctx);
         |                                          ^~~~~~~~~~~~~
   block/blk-mq-debugfs.h:25:44: warning: 'struct blk_mq_hw_ctx' declared inside parameter list will not be visible outside of this definition or declaration
      25 | void blk_mq_debugfs_unregister_hctx(struct blk_mq_hw_ctx *hctx);
         |                                            ^~~~~~~~~~~~~
   block/blk-mq-debugfs.h:32:47: warning: 'struct blk_mq_hw_ctx' declared inside parameter list will not be visible outside of this definition or declaration
      32 |                                        struct blk_mq_hw_ctx *hctx);
         |                                               ^~~~~~~~~~~~~
   block/blk-mq-debugfs.h:33:50: warning: 'struct blk_mq_hw_ctx' declared inside parameter list will not be visible outside of this definition or declaration
      33 | void blk_mq_debugfs_unregister_sched_hctx(struct blk_mq_hw_ctx *hctx);
         |                                                  ^~~~~~~~~~~~~


vim +24 block/blk-mq-debugfs.h

16b738f651c83a0 Omar Sandoval      2017-05-04  20  
6cfc0081b046ebf Greg Kroah-Hartman 2019-06-12  21  void blk_mq_debugfs_register(struct request_queue *q);
d173a25165c1244 Omar Sandoval      2017-05-04  22  void blk_mq_debugfs_unregister(struct request_queue *q);
6cfc0081b046ebf Greg Kroah-Hartman 2019-06-12  23  void blk_mq_debugfs_register_hctx(struct request_queue *q,
9c1051aacde8280 Omar Sandoval      2017-05-04 @24  				  struct blk_mq_hw_ctx *hctx);
9c1051aacde8280 Omar Sandoval      2017-05-04  25  void blk_mq_debugfs_unregister_hctx(struct blk_mq_hw_ctx *hctx);
6cfc0081b046ebf Greg Kroah-Hartman 2019-06-12  26  void blk_mq_debugfs_register_hctxs(struct request_queue *q);
9c1051aacde8280 Omar Sandoval      2017-05-04  27  void blk_mq_debugfs_unregister_hctxs(struct request_queue *q);
d332ce091813d11 Omar Sandoval      2017-05-04  28  

---
0-DAY CI Kernel Test Service, Intel Corporation
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