[android-common:android16-6.12-kminext 0/1] Unable to generate bindings: clang diagnosed error: include/linux/blkdev.h:1699:17: error: field has incomplete type 'struct rq_list'

kernel test robot <[email protected]>
Newsgroups dev.linux.lists.llvm,dev.linux.lists.oe-kbuild-all
Message-ID <[email protected]> 
TO: [email protected]

Hi Christoph,

FYI, the error/warning still remains.

tree:   https://android.googlesource.com/kernel/common android16-6.12-kminext
head:   56f164d7f06bd11dfa205c568ed165eff6a03fe4
commit: 24f685a927c5a41df01d66069493bee40a5fb60e [0/1] UPSTREAM: block: add a rq_list type
config: x86_64-randconfig-005-20260815 (https://download.01.org/0day-ci/archive/20260815/[email protected]/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/20260815/[email protected]/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 <[email protected]>
| Closes: https://lore.kernel.org/oe-kbuild-all/[email protected]/

All errors (new ones prefixed by >>):

   |                              ~~^
   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=1338912689
   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=1338912689
   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'

Kconfig warnings: (for reference only)
   WARNING: unmet direct dependencies detected for SND_PCM_IEC958
   Depends on [n]: SOUND [=m] && SND [=n]
   Selected by [y]:
   - GKI_HIDDEN_SND_SOC_CONFIGS [=y]
   WARNING: unmet direct dependencies detected for SND_COMPRESS_ACCEL
   Depends on [n]: SOUND [=m] && SND [=n]
   Selected by [y]:
   - GKI_HIDDEN_SND_CONFIGS [=y]
   WARNING: unmet direct dependencies detected for SND_JACK
   Depends on [n]: SOUND [=m] && SND [=n]
   Selected by [y]:
   - GKI_HIDDEN_SND_CONFIGS [=y]
   WARNING: unmet direct dependencies detected for SND_VMASTER
   Depends on [n]: SOUND [=m] && SND [=n]
   Selected by [y]:
   - GKI_HIDDEN_SND_CONFIGS [=y]
   WARNING: unmet direct dependencies detected for CAN_RX_OFFLOAD
   Depends on [n]: NETDEVICES [=y] && CAN_DEV [=n] && CAN_NETLINK [=n]
   Selected by [y]:
   - GKI_HIDDEN_MCP251XFD_CONFIGS [=y]
   WARNING: unmet direct dependencies detected for SND_JACK_INPUT_DEV
   Depends on [n]: SOUND [=m] && SND [=n] && SND_JACK [=y]
   Selected by [y]:
   - GKI_HIDDEN_SND_CONFIGS [=y]
   WARNING: unmet direct dependencies detected for SND_INTEL_NHLT
   Depends on [n]: SOUND [=m] && SND [=n]
   Selected by [y]:
   - GKI_HIDDEN_SND_CONFIGS [=y] && ACPI [=y]
   WARNING: unmet direct dependencies detected for SND_PCM_ELD
   Depends on [n]: SOUND [=m] && SND [=n]
   Selected by [y]:
   - GKI_HIDDEN_SND_CONFIGS [=y]

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