[android-common:android16-6.12 38/38] include/linux/blkdev.h:1699:24: error: field 'req_list' has incomplete type

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

Hi Christoph,

FYI, the error/warning still remains.

tree:   https://android.googlesource.com/kernel/common android16-6.12
head:   17584f778119ed93d9ae85feb43561e05f5254b0
commit: 24f685a927c5a41df01d66069493bee40a5fb60e [38/38] UPSTREAM: block: add a rq_list type
config: x86_64-buildonly-randconfig-006-20260611 (https://download.01.org/0day-ci/archive/20260612/202606120735.PHcFccnr-lkp@intel.com/config)
compiler: gcc-14 (Debian 14.2.0-19) 14.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260612/202606120735.PHcFccnr-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202606120735.PHcFccnr-lkp@intel.com/

All errors (new ones prefixed by >>):

   In file included from include/linux/io_uring_types.h:4,
                    from include/linux/io_uring/cmd.h:6,
                    from io_uring/io_uring.c:70:
>> include/linux/blkdev.h:1699:24: error: field 'req_list' has incomplete type
    1699 |         struct rq_list req_list;
         |                        ^~~~~~~~
--
   In file included from include/linux/blk-mq.h:5,
                    from io_uring/rw.c:6:
>> include/linux/blkdev.h:1699:24: error: field 'req_list' has incomplete type
    1699 |         struct rq_list req_list;
         |                        ^~~~~~~~
   include/linux/blk-mq.h: In function 'rq_list_empty':
>> include/linux/blk-mq.h:239:18: error: invalid use of undefined type 'const struct rq_list'
     239 |         return rl->head == NULL;
         |                  ^~
   include/linux/blk-mq.h: In function 'rq_list_init':
>> include/linux/blk-mq.h:244:11: error: invalid use of undefined type 'struct rq_list'
     244 |         rl->head = NULL;
         |           ^~
   include/linux/blk-mq.h:245:11: error: invalid use of undefined type 'struct rq_list'
     245 |         rl->tail = NULL;
         |           ^~
   include/linux/blk-mq.h: In function 'rq_list_add_tail':
   include/linux/blk-mq.h:251:15: error: invalid use of undefined type 'struct rq_list'
     251 |         if (rl->tail)
         |               ^~
   include/linux/blk-mq.h:252:19: error: invalid use of undefined type 'struct rq_list'
     252 |                 rl->tail->rq_next = rq;
         |                   ^~
   include/linux/blk-mq.h:254:19: error: invalid use of undefined type 'struct rq_list'
     254 |                 rl->head = rq;
         |                   ^~
   include/linux/blk-mq.h:255:11: error: invalid use of undefined type 'struct rq_list'
     255 |         rl->tail = rq;
         |           ^~
   include/linux/blk-mq.h: In function 'rq_list_add_head':
   include/linux/blk-mq.h:260:25: error: invalid use of undefined type 'struct rq_list'
     260 |         rq->rq_next = rl->head;
         |                         ^~
   include/linux/blk-mq.h:261:11: error: invalid use of undefined type 'struct rq_list'
     261 |         rl->head = rq;
         |           ^~
   include/linux/blk-mq.h:262:16: error: invalid use of undefined type 'struct rq_list'
     262 |         if (!rl->tail)
         |                ^~
   include/linux/blk-mq.h:263:19: error: invalid use of undefined type 'struct rq_list'
     263 |                 rl->tail = rq;
         |                   ^~
   include/linux/blk-mq.h: In function 'rq_list_pop':
   include/linux/blk-mq.h:268:32: error: invalid use of undefined type 'struct rq_list'
     268 |         struct request *rq = rl->head;
         |                                ^~
   include/linux/blk-mq.h:271:19: error: invalid use of undefined type 'struct rq_list'
     271 |                 rl->head = rl->head->rq_next;
         |                   ^~
   include/linux/blk-mq.h:271:30: error: invalid use of undefined type 'struct rq_list'
     271 |                 rl->head = rl->head->rq_next;
         |                              ^~
   include/linux/blk-mq.h:272:24: error: invalid use of undefined type 'struct rq_list'
     272 |                 if (!rl->head)
         |                        ^~
   include/linux/blk-mq.h:273:27: error: invalid use of undefined type 'struct rq_list'
     273 |                         rl->tail = NULL;
         |                           ^~
   include/linux/blk-mq.h: In function 'rq_list_peek':
   include/linux/blk-mq.h:282:18: error: invalid use of undefined type 'struct rq_list'
     282 |         return rl->head;
         |                  ^~
--
   In file included from fs/orangefs/inode.c:13:
>> include/linux/blkdev.h:1699:24: error: field 'req_list' has incomplete type
    1699 |         struct rq_list req_list;
         |                        ^~~~~~~~
   In file included from fs/orangefs/protocol.h:287,
                    from fs/orangefs/inode.c:15:
   fs/orangefs/orangefs-debug.h:86:18: warning: 'num_kmod_keyword_mask_map' defined but not used [-Wunused-const-variable=]
      86 | static const int num_kmod_keyword_mask_map = (int)
         |                  ^~~~~~~~~~~~~~~~~~~~~~~~~


vim +/req_list +1699 include/linux/blkdev.h

  1697	
  1698	struct io_comp_batch {
> 1699		struct rq_list req_list;
  1700		bool need_ts;
  1701		void (*complete)(struct io_comp_batch *);
  1702	};
  1703	

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