Building the Linux kernel with Clang and LLVM
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From: kernel test robot <lkp@intel.com>
Cc: oe-kbuild-all@lists.linux.dev, llvm@lists.linux.dev
Subject: [android-common:android16-6.12 0/3] include/linux/blkdev.h:1699:17: error: field has incomplete type 'struct rq_list'
Date: Fri, 28 Aug 2026 15:06:09 +0800	[thread overview]
Message-ID: <202608281500.eLpSJP8L-lkp@intel.com> (raw)

TO: cros-kernel-buildreports@googlegroups.com

Hi Christoph,

FYI, the error/warning still remains.

tree:   https://android.googlesource.com/kernel/common android16-6.12
head:   50e8de680435dfb61c1efbe10901c2cf9d97433a
commit: 24f685a927c5a41df01d66069493bee40a5fb60e [0/3] UPSTREAM: block: add a rq_list type
config: x86_64-randconfig-004-20260828 (https://download.01.org/0day-ci/archive/20260828/202608281500.eLpSJP8L-lkp@intel.com/config)
compiler: clang version 22.1.3 (https://github.com/llvm/llvm-project e9846648fd6183ee6d8cbdb4502213fcf902a211)
rustc: rustc 1.96.0 (ac68faa20 2026-05-25)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260828/202608281500.eLpSJP8L-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/202608281500.eLpSJP8L-lkp@intel.com/

All errors (new ones prefixed by >>):

   make[3]: *** [rust/Makefile:443: rust/core.o] Error 1 shuffle=540017786
   In file included from <built-in>:3:
   In file included from include/linux/compiler_types.h:171:
   include/linux/compiler-clang.h:28:9: warning: '__SANITIZE_ADDRESS__' macro redefined [-Wmacro-redefined]
   28 | #define __SANITIZE_ADDRESS__
   |         ^
   <built-in>:353:9: note: previous definition is here
   353 | #define __SANITIZE_ADDRESS__ 1
   |         ^
   In file included from rust/helpers/helpers.c:11:
   In file included from rust/helpers/blk.c:3:
   In file included from include/linux/blk-mq.h:5:
>> include/linux/blkdev.h:1699:17: error: field has incomplete type 'struct rq_list'
   1699 |         struct rq_list req_list;
   |                        ^
   include/linux/blkdev.h:1699:9: note: forward declaration of 'struct rq_list'
   1699 |         struct rq_list req_list;
   |                ^
   In file included from rust/helpers/helpers.c:11:
   In file included from rust/helpers/blk.c:3:
>> include/linux/blk-mq.h:239:11: error: incomplete definition of type 'const struct rq_list'
   239 |         return rl->head == NULL;
   |                ~~^
   include/linux/blkdev.h:1699:9: note: forward declaration of 'struct rq_list'
   1699 |         struct rq_list req_list;
   |                ^
   In file included from rust/helpers/helpers.c:11:
   In file included from rust/helpers/blk.c:3:
>> include/linux/blk-mq.h:244:4: error: incomplete definition of type 'struct rq_list'
   244 |         rl->head = NULL;
   |         ~~^
   include/linux/blkdev.h:1699:9: note: forward declaration of 'struct rq_list'
   1699 |         struct rq_list req_list;
   |                ^
   In file included from rust/helpers/helpers.c:11:
   In file included from rust/helpers/blk.c:3:
   include/linux/blk-mq.h:245:4: error: incomplete definition of type 'struct rq_list'
   245 |         rl->tail = NULL;
   |         ~~^
   include/linux/blkdev.h:1699:9: note: forward declaration of 'struct rq_list'
   1699 |         struct rq_list req_list;
   |                ^
   In file included from rust/helpers/helpers.c:11:
   In file included from rust/helpers/blk.c:3:
   include/linux/blk-mq.h:251:8: error: incomplete definition of type 'struct rq_list'
   251 |         if (rl->tail)
   |             ~~^
   include/linux/blkdev.h:1699:9: note: forward declaration of 'struct rq_list'
   1699 |         struct rq_list req_list;
   |                ^
   In file included from rust/helpers/helpers.c:11:
   In file included from rust/helpers/blk.c:3:
   include/linux/blk-mq.h:252:5: error: incomplete definition of type 'struct rq_list'
   252 |                 rl->tail->rq_next = rq;
   |                 ~~^
   include/linux/blkdev.h:1699:9: note: forward declaration of 'struct rq_list'
   1699 |         struct rq_list req_list;
   |                ^
   In file included from rust/helpers/helpers.c:11:
   In file included from rust/helpers/blk.c:3:
   include/linux/blk-mq.h:254:5: error: incomplete definition of type 'struct rq_list'
   254 |                 rl->head = rq;
   |                 ~~^
   include/linux/blkdev.h:1699:9: note: forward declaration of 'struct rq_list'
   1699 |         struct rq_list req_list;
   |                ^
   In file included from rust/helpers/helpers.c:11:
   In file included from rust/helpers/blk.c:3:
   include/linux/blk-mq.h:255:4: error: incomplete definition of type 'struct rq_list'
   255 |         rl->tail = rq;
   |         ~~^
   include/linux/blkdev.h:1699:9: note: forward declaration of 'struct rq_list'
   1699 |         struct rq_list req_list;
   |                ^
   In file included from rust/helpers/helpers.c:11:
   In file included from rust/helpers/blk.c:3:
   include/linux/blk-mq.h:260:18: error: incomplete definition of type 'struct rq_list'
   260 |         rq->rq_next = rl->head;
   |                       ~~^
   include/linux/blkdev.h:1699:9: note: forward declaration of 'struct rq_list'
   1699 |         struct rq_list req_list;
   |                ^
   In file included from rust/helpers/helpers.c:11:
   In file included from rust/helpers/blk.c:3:
   include/linux/blk-mq.h:261:4: error: incomplete definition of type 'struct rq_list'
   261 |         rl->head = rq;
   |         ~~^
   include/linux/blkdev.h:1699:9: note: forward declaration of 'struct rq_list'
   1699 |         struct rq_list req_list;
   |                ^
   In file included from rust/helpers/helpers.c:11:
   In file included from rust/helpers/blk.c:3:
   include/linux/blk-mq.h:262:9: error: incomplete definition of type 'struct rq_list'
   262 |         if (!rl->tail)
   |              ~~^
   include/linux/blkdev.h:1699:9: note: forward declaration of 'struct rq_list'
   1699 |         struct rq_list req_list;
   |                ^
   In file included from rust/helpers/helpers.c:11:
   In file included from rust/helpers/blk.c:3:
   include/linux/blk-mq.h:263:5: error: incomplete definition of type 'struct rq_list'
   263 |                 rl->tail = rq;
   |                 ~~^
   include/linux/blkdev.h:1699:9: note: forward declaration of 'struct rq_list'
   1699 |         struct rq_list req_list;
   |                ^
   In file included from rust/helpers/helpers.c:11:
   In file included from rust/helpers/blk.c:3:
   include/linux/blk-mq.h:268:25: error: incomplete definition of type 'struct rq_list'
   268 |         struct request *rq = rl->head;
   |                              ~~^
   include/linux/blkdev.h:1699:9: note: forward declaration of 'struct rq_list'
   1699 |         struct rq_list req_list;
   |                ^
   In file included from rust/helpers/helpers.c:11:
   In file included from rust/helpers/blk.c:3:
   include/linux/blk-mq.h:271:5: error: incomplete definition of type 'struct rq_list'
   271 |                 rl->head = rl->head->rq_next;
   |                 ~~^
   include/linux/blkdev.h:1699:9: note: forward declaration of 'struct rq_list'
   1699 |         struct rq_list req_list;
   |                ^
   In file included from rust/helpers/helpers.c:11:
   In file included from rust/helpers/blk.c:3:
   include/linux/blk-mq.h:271:16: error: incomplete definition of type 'struct rq_list'
   271 |                 rl->head = rl->head->rq_next;
   |                            ~~^
   include/linux/blkdev.h:1699:9: note: forward declaration of 'struct rq_list'
   1699 |         struct rq_list req_list;
   |                ^
   In file included from rust/helpers/helpers.c:11:
   In file included from rust/helpers/blk.c:3:
   include/linux/blk-mq.h:272:10: error: incomplete definition of type 'struct rq_list'
   272 |                 if (!rl->head)
   |                      ~~^
   include/linux/blkdev.h:1699:9: note: forward declaration of 'struct rq_list'
   1699 |         struct rq_list req_list;
   |                ^
   In file included from rust/helpers/helpers.c:11:
   In file included from rust/helpers/blk.c:3:
   include/linux/blk-mq.h:273:6: error: incomplete definition of type 'struct rq_list'
   273 |                         rl->tail = NULL;
   |                         ~~^
   include/linux/blkdev.h:1699:9: note: forward declaration of 'struct rq_list'
   1699 |         struct rq_list req_list;
   |                ^
   In file included from rust/helpers/helpers.c:11:
   In file included from rust/helpers/blk.c:3:
   include/linux/blk-mq.h:282:11: error: incomplete definition of type 'struct rq_list'
   282 |         return rl->head;
   |                ~~^
   include/linux/blkdev.h:1699:9: note: forward declaration of 'struct rq_list'
   1699 |         struct rq_list req_list;
   |                ^
   In file included from rust/helpers/helpers.c:21:
   In file included from rust/helpers/mman.c:3:
   include/linux/mman.h:159:9: warning: division by zero is undefined [-Wdivision-by-zero]
   159 |                _calc_vm_trans(flags, MAP_SYNC,       VM_SYNC      ) |
   |                ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/mman.h:137:21: note: expanded from macro '_calc_vm_trans'
   137 |    : ((x) & (bit1)) / ((bit1) / (bit2))))
   |                     ^ ~~~~~~~~~~~~~~~~~
   include/linux/mman.h:160:9: warning: division by zero is undefined [-Wdivision-by-zero]
   160 |                _calc_vm_trans(flags, MAP_STACK,      VM_NOHUGEPAGE) |
   |                ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   include/linux/mman.h:137:21: note: expanded from macro '_calc_vm_trans'
   137 |    : ((x) & (bit1)) / ((bit1) / (bit2))))
   |                     ^ ~~~~~~~~~~~~~~~~~
   3 warnings and 18 errors generated.
   make[3]: *** [rust/Makefile:431: rust/helpers/helpers.o] Error 1 shuffle=540017786
>> include/linux/blkdev.h:1699:17: error: field has incomplete type 'struct rq_list'
   include/linux/blkdev.h:1699:9: note: forward declaration of 'struct rq_list'
>> include/linux/blk-mq.h:239:11: error: incomplete definition of type 'const struct rq_list'
   include/linux/blkdev.h:1699:9: note: forward declaration of 'struct rq_list'
>> include/linux/blk-mq.h:244:4: error: incomplete definition of type 'struct rq_list'
   include/linux/blkdev.h:1699:9: note: forward declaration of 'struct rq_list'
   include/linux/blk-mq.h:245:4: error: incomplete definition of type 'struct rq_list'
   include/linux/blkdev.h:1699:9: note: forward declaration of 'struct rq_list'
   include/linux/blk-mq.h:251:8: error: incomplete definition of type 'struct rq_list'
   include/linux/blkdev.h:1699:9: note: forward declaration of 'struct rq_list'
   include/linux/blk-mq.h:252:5: error: incomplete definition of type 'struct rq_list'
   include/linux/blkdev.h:1699:9: note: forward declaration of 'struct rq_list'
   include/linux/blk-mq.h:254:5: error: incomplete definition of type 'struct rq_list'
   include/linux/blkdev.h:1699:9: note: forward declaration of 'struct rq_list'
   include/linux/blk-mq.h:255:4: error: incomplete definition of type 'struct rq_list'
   include/linux/blkdev.h:1699:9: note: forward declaration of 'struct rq_list'
   include/linux/blk-mq.h:260:18: error: incomplete definition of type 'struct rq_list'
   include/linux/blkdev.h:1699:9: note: forward declaration of 'struct rq_list'
   include/linux/blk-mq.h:261:4: error: incomplete definition of type 'struct rq_list'
   include/linux/blkdev.h:1699:9: note: forward declaration of 'struct rq_list'
   include/linux/blk-mq.h:262:9: error: incomplete definition of type 'struct rq_list'
   include/linux/blkdev.h:1699:9: note: forward declaration of 'struct rq_list'
   include/linux/blk-mq.h:263:5: error: incomplete definition of type 'struct rq_list'
   include/linux/blkdev.h:1699:9: note: forward declaration of 'struct rq_list'
   include/linux/blk-mq.h:268:25: error: incomplete definition of type 'struct rq_list'
   include/linux/blkdev.h:1699:9: note: forward declaration of 'struct rq_list'
   include/linux/blk-mq.h:271:5: error: incomplete definition of type 'struct rq_list'
   include/linux/blkdev.h:1699:9: note: forward declaration of 'struct rq_list'
   include/linux/blk-mq.h:271:16: error: incomplete definition of type 'struct rq_list'
   include/linux/blkdev.h:1699:9: note: forward declaration of 'struct rq_list'
   include/linux/blk-mq.h:272:10: error: incomplete definition of type 'struct rq_list'
   include/linux/blkdev.h:1699:9: note: forward declaration of 'struct rq_list'
   include/linux/blk-mq.h:273:6: error: incomplete definition of type 'struct rq_list'
   include/linux/blkdev.h:1699:9: note: forward declaration of 'struct rq_list'
   include/linux/blk-mq.h:282:11: error: incomplete definition of type 'struct rq_list'
   include/linux/blkdev.h:1699:9: note: forward declaration of 'struct rq_list'
   include/linux/mman.h:137:21: warning: division by zero is undefined [-Wdivision-by-zero]
   include/linux/mman.h:137:21: warning: division by zero is undefined [-Wdivision-by-zero]
   clang diag: include/linux/mman.h:137:21: warning: division by zero is undefined [-Wdivision-by-zero]
   clang diag: include/linux/mman.h:137:21: warning: division by zero is undefined [-Wdivision-by-zero]
>> Unable to generate bindings: clang diagnosed error: include/linux/blkdev.h:1699:17: error: field has incomplete type 'struct rq_list'
>> include/linux/blk-mq.h:239:11: error: incomplete definition of type 'const struct rq_list'
>> include/linux/blk-mq.h:244:4: error: incomplete definition of type 'struct rq_list'
   include/linux/blk-mq.h:245:4: error: incomplete definition of type 'struct rq_list'
   include/linux/blk-mq.h:251:8: error: incomplete definition of type 'struct rq_list'
   include/linux/blk-mq.h:252:5: error: incomplete definition of type 'struct rq_list'
   include/linux/blk-mq.h:254:5: error: incomplete definition of type 'struct rq_list'
   include/linux/blk-mq.h:255:4: error: incomplete definition of type 'struct rq_list'
   include/linux/blk-mq.h:260:18: error: incomplete definition of type 'struct rq_list'
   include/linux/blk-mq.h:261:4: error: incomplete definition of type 'struct rq_list'
   include/linux/blk-mq.h:262:9: error: incomplete definition of type 'struct rq_list'
   include/linux/blk-mq.h:263:5: error: incomplete definition of type 'struct rq_list'
   include/linux/blk-mq.h:268:25: error: incomplete definition of type 'struct rq_list'
   include/linux/blk-mq.h:271:5: error: incomplete definition of type 'struct rq_list'
   include/linux/blk-mq.h:271:16: error: incomplete definition of type 'struct rq_list'
   include/linux/blk-mq.h:272:10: error: incomplete definition of type 'struct rq_list'
   include/linux/blk-mq.h:273:6: error: incomplete definition of type 'struct rq_list'
   include/linux/blk-mq.h:282:11: error: incomplete definition of type 'struct rq_list'
--
   make[3]: *** [rust/Makefile:332: rust/bindings/bindings_helpers_generated.rs] Error 1 shuffle=540017786
   make[3]: *** Deleting file 'rust/bindings/bindings_helpers_generated.rs'
>> include/linux/blkdev.h:1699:17: error: field has incomplete type 'struct rq_list'
   include/linux/blkdev.h:1699:9: note: forward declaration of 'struct rq_list'
>> include/linux/blk-mq.h:239:11: error: incomplete definition of type 'const struct rq_list'
   include/linux/blkdev.h:1699:9: note: forward declaration of 'struct rq_list'
>> include/linux/blk-mq.h:244:4: error: incomplete definition of type 'struct rq_list'
   include/linux/blkdev.h:1699:9: note: forward declaration of 'struct rq_list'
   include/linux/blk-mq.h:245:4: error: incomplete definition of type 'struct rq_list'
   include/linux/blkdev.h:1699:9: note: forward declaration of 'struct rq_list'
   include/linux/blk-mq.h:251:8: error: incomplete definition of type 'struct rq_list'
   include/linux/blkdev.h:1699:9: note: forward declaration of 'struct rq_list'
   include/linux/blk-mq.h:252:5: error: incomplete definition of type 'struct rq_list'
   include/linux/blkdev.h:1699:9: note: forward declaration of 'struct rq_list'
   include/linux/blk-mq.h:254:5: error: incomplete definition of type 'struct rq_list'
   include/linux/blkdev.h:1699:9: note: forward declaration of 'struct rq_list'
   include/linux/blk-mq.h:255:4: error: incomplete definition of type 'struct rq_list'
   include/linux/blkdev.h:1699:9: note: forward declaration of 'struct rq_list'
   include/linux/blk-mq.h:260:18: error: incomplete definition of type 'struct rq_list'
   include/linux/blkdev.h:1699:9: note: forward declaration of 'struct rq_list'
   include/linux/blk-mq.h:261:4: error: incomplete definition of type 'struct rq_list'
   include/linux/blkdev.h:1699:9: note: forward declaration of 'struct rq_list'
   include/linux/blk-mq.h:262:9: error: incomplete definition of type 'struct rq_list'
   include/linux/blkdev.h:1699:9: note: forward declaration of 'struct rq_list'
   include/linux/blk-mq.h:263:5: error: incomplete definition of type 'struct rq_list'
   include/linux/blkdev.h:1699:9: note: forward declaration of 'struct rq_list'
   include/linux/blk-mq.h:268:25: error: incomplete definition of type 'struct rq_list'
   include/linux/blkdev.h:1699:9: note: forward declaration of 'struct rq_list'
   include/linux/blk-mq.h:271:5: error: incomplete definition of type 'struct rq_list'
   include/linux/blkdev.h:1699:9: note: forward declaration of 'struct rq_list'
   include/linux/blk-mq.h:271:16: error: incomplete definition of type 'struct rq_list'
   include/linux/blkdev.h:1699:9: note: forward declaration of 'struct rq_list'
   include/linux/blk-mq.h:272:10: error: incomplete definition of type 'struct rq_list'
   include/linux/blkdev.h:1699:9: note: forward declaration of 'struct rq_list'
   include/linux/blk-mq.h:273:6: error: incomplete definition of type 'struct rq_list'
   include/linux/blkdev.h:1699:9: note: forward declaration of 'struct rq_list'
   include/linux/blk-mq.h:282:11: error: incomplete definition of type 'struct rq_list'
   include/linux/blkdev.h:1699:9: note: forward declaration of 'struct rq_list'
   include/linux/mman.h:137:21: warning: division by zero is undefined [-Wdivision-by-zero]
   include/linux/mman.h:137:21: warning: division by zero is undefined [-Wdivision-by-zero]
   clang diag: include/linux/mman.h:137:21: warning: division by zero is undefined [-Wdivision-by-zero]
   clang diag: include/linux/mman.h:137:21: warning: division by zero is undefined [-Wdivision-by-zero]
>> Unable to generate bindings: clang diagnosed error: include/linux/blkdev.h:1699:17: error: field has incomplete type 'struct rq_list'
>> include/linux/blk-mq.h:239:11: error: incomplete definition of type 'const struct rq_list'
>> include/linux/blk-mq.h:244:4: error: incomplete definition of type 'struct rq_list'
   include/linux/blk-mq.h:245:4: error: incomplete definition of type 'struct rq_list'
   include/linux/blk-mq.h:251:8: error: incomplete definition of type 'struct rq_list'
   include/linux/blk-mq.h:252:5: error: incomplete definition of type 'struct rq_list'
   include/linux/blk-mq.h:254:5: error: incomplete definition of type 'struct rq_list'
   include/linux/blk-mq.h:255:4: error: incomplete definition of type 'struct rq_list'
   include/linux/blk-mq.h:260:18: error: incomplete definition of type 'struct rq_list'
   include/linux/blk-mq.h:261:4: error: incomplete definition of type 'struct rq_list'
   include/linux/blk-mq.h:262:9: error: incomplete definition of type 'struct rq_list'
   include/linux/blk-mq.h:263:5: error: incomplete definition of type 'struct rq_list'
   include/linux/blk-mq.h:268:25: error: incomplete definition of type 'struct rq_list'
   include/linux/blk-mq.h:271:5: error: incomplete definition of type 'struct rq_list'
   include/linux/blk-mq.h:271:16: error: incomplete definition of type 'struct rq_list'
   include/linux/blk-mq.h:272:10: error: incomplete definition of type 'struct rq_list'
   include/linux/blk-mq.h:273:6: error: incomplete definition of type 'struct rq_list'
   include/linux/blk-mq.h:282:11: error: incomplete definition of type 'struct rq_list'


vim +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	

--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki

                 reply	other threads:[~2026-08-28  7:07 UTC|newest]

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