linux-kernel - [hch-block:blkdev.h-includes 14/16] include/linux/blk_types.h:434:8: error: invalid use of undefined type 'struct request'

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Message-ID: <202107252119.Ix1UwdOh-lkp@intel.com>
Date:   Sun, 25 Jul 2021 21:20:39 +0800
From:   kernel test robot <lkp@...el.com>
To:     Christoph Hellwig <hch@....de>
Cc:     kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org
Subject: [hch-block:blkdev.h-includes 14/16] include/linux/blk_types.h:434:8:
 error: invalid use of undefined type 'struct request'

tree:   git://git.infradead.org/users/hch/block.git blkdev.h-includes
head:   db08f634bead64da6de80830782f3c339fc41b11
commit: be3ba4f465ffc4c2ae10a1556ae6b80bcce17235 [14/16] block: move struct request to blk-mq.h
config: h8300-randconfig-r001-20210725 (attached as .config)
compiler: h8300-linux-gcc (GCC) 10.3.0
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
        git remote add hch-block git://git.infradead.org/users/hch/block.git
        git fetch --no-tags hch-block blkdev.h-includes
        git checkout be3ba4f465ffc4c2ae10a1556ae6b80bcce17235
        # save the attached .config to linux build tree
        mkdir build_dir
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-10.3.0 make.cross O=build_dir ARCH=h8300 SHELL=/bin/bash drivers/block/

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

All errors (new ones prefixed by >>):

   In file included from include/linux/genhd.h:19,
                    from include/linux/blkdev.h:7,
                    from drivers/block/rnbd/rnbd-proto.h:13,
                    from drivers/block/rnbd/rnbd-common.c:9:
   drivers/block/rnbd/rnbd-proto.h: In function 'rq_to_rnbd_flags':
>> include/linux/blk_types.h:434:8: error: invalid use of undefined type 'struct request'
     434 |  ((req)->cmd_flags & REQ_OP_MASK)
         |        ^~
   drivers/block/rnbd/rnbd-proto.h:274:10: note: in expansion of macro 'req_op'
     274 |  switch (req_op(rq)) {
         |          ^~~~~~
   In file included from arch/h8300/include/asm/bug.h:8,
                    from include/linux/bug.h:5,
                    from include/linux/thread_info.h:13,
                    from include/asm-generic/current.h:5,
                    from ./arch/h8300/include/generated/asm/current.h:1,
                    from include/linux/sched.h:12,
                    from include/linux/blkdev.h:5,
                    from drivers/block/rnbd/rnbd-proto.h:13,
                    from drivers/block/rnbd/rnbd-common.c:9:
>> include/linux/blk_types.h:434:8: error: invalid use of undefined type 'struct request'
     434 |  ((req)->cmd_flags & REQ_OP_MASK)
         |        ^~
   include/asm-generic/bug.h:91:48: note: in definition of macro '__WARN_printf'
      91 |   warn_slowpath_fmt(__FILE__, __LINE__, taint, arg); \
         |                                                ^~~
   drivers/block/rnbd/rnbd-proto.h:294:3: note: in expansion of macro 'WARN'
     294 |   WARN(1, "Unknown request type %d (flags %llu)\n",
         |   ^~~~
   drivers/block/rnbd/rnbd-proto.h:295:8: note: in expansion of macro 'req_op'
     295 |        req_op(rq), (unsigned long long)rq->cmd_flags);
         |        ^~~~~~
>> drivers/block/rnbd/rnbd-proto.h:295:42: error: invalid use of undefined type 'struct request'
     295 |        req_op(rq), (unsigned long long)rq->cmd_flags);
         |                                          ^~
   include/asm-generic/bug.h:91:48: note: in definition of macro '__WARN_printf'
      91 |   warn_slowpath_fmt(__FILE__, __LINE__, taint, arg); \
         |                                                ^~~
   drivers/block/rnbd/rnbd-proto.h:294:3: note: in expansion of macro 'WARN'
     294 |   WARN(1, "Unknown request type %d (flags %llu)\n",
         |   ^~~~
   In file included from drivers/block/rnbd/rnbd-common.c:9:
   drivers/block/rnbd/rnbd-proto.h:299:19: error: invalid use of undefined type 'struct request'
     299 |  if (op_is_sync(rq->cmd_flags))
         |                   ^~
   drivers/block/rnbd/rnbd-proto.h:302:20: error: invalid use of undefined type 'struct request'
     302 |  if (op_is_flush(rq->cmd_flags))
         |                    ^~


vim +434 include/linux/blk_types.h

dbae2c551377b6 Michael Callahan  2018-07-18  430  
ef295ecf090d3e Christoph Hellwig 2016-10-28  431  #define bio_op(bio) \
ef295ecf090d3e Christoph Hellwig 2016-10-28  432  	((bio)->bi_opf & REQ_OP_MASK)
ef295ecf090d3e Christoph Hellwig 2016-10-28  433  #define req_op(req) \
ef295ecf090d3e Christoph Hellwig 2016-10-28 @434  	((req)->cmd_flags & REQ_OP_MASK)
7cc015811ef899 Tejun Heo         2010-08-03  435  

:::::: The code at line 434 was first introduced by commit
:::::: ef295ecf090d3e86e5b742fc6ab34f1122a43773 block: better op and flags encoding

:::::: TO: Christoph Hellwig <hch@....de>
:::::: CC: Jens Axboe <axboe@...com>

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org

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