[android-common:android13-5.10 0/2] block/blk-mq-tag.h:42:43: warning: 'struct blk_mq_alloc_data' declared inside parameter list will not be visible outside of this definition or declaration

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

FYI, the error/warning still remains.

tree:   https://android.googlesource.com/kernel/common android13-5.10
head:   233907fd00d20cb913bac974697845f18998af64
commit: 3dc6e416a159a0bf3336e4c3469531fbbd128146 [0/2] ANDROID: force struct blk_mq_alloc_data to be defined in KMI
config: i386-randconfig-016-20260822 (https://download.01.org/0day-ci/archive/20260822/[email protected]/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/20260822/[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 warnings (new ones prefixed by >>):

   In file included from block/blk-mq.h:6,
                    from block/blk.h:11,
                    from block/vendor_hooks.c:6:
>> block/blk-mq-tag.h:42:43: warning: 'struct blk_mq_alloc_data' declared inside parameter list will not be visible outside of this definition or declaration
      42 | extern unsigned int blk_mq_get_tag(struct blk_mq_alloc_data *data);
         |                                           ^~~~~~~~~~~~~~~~~
   block/blk-mq.h: In function 'blk_mq_plug':
   block/blk-mq.h:281:31: error: 'struct task_struct' has no member named 'plug'
     281 |                 return current->plug;
         |                               ^~
   In file included from block/blk.h:12:
   block/blk-mq-sched.h: At top level:
>> block/blk-mq-sched.h:27:55: warning: 'struct elevator_type' declared inside parameter list will not be visible outside of this definition or declaration
      27 | int blk_mq_init_sched(struct request_queue *q, struct elevator_type *e);
         |                                                       ^~~~~~~~~~~~~
   block/blk-mq-sched.h: In function 'blk_mq_sched_allow_merge':
   block/blk-mq-sched.h:47:19: error: invalid use of undefined type 'struct elevator_queue'
      47 |         if (e && e->type->ops.allow_merge)
         |                   ^~
   block/blk-mq-sched.h:48:25: error: invalid use of undefined type 'struct elevator_queue'
      48 |                 return e->type->ops.allow_merge(q, rq, bio);
         |                         ^~
   block/blk-mq-sched.h: In function 'blk_mq_sched_completed_request':
   block/blk-mq-sched.h:57:19: error: invalid use of undefined type 'struct elevator_queue'
      57 |         if (e && e->type->ops.completed_request)
         |                   ^~
   block/blk-mq-sched.h:58:18: error: invalid use of undefined type 'struct elevator_queue'
      58 |                 e->type->ops.completed_request(rq, now);
         |                  ^~
   block/blk-mq-sched.h: In function 'blk_mq_sched_requeue_request':
   block/blk-mq-sched.h:66:51: error: invalid use of undefined type 'struct elevator_queue'
      66 |         if ((rq->rq_flags & RQF_ELVPRIV) && e && e->type->ops.requeue_request)
         |                                                   ^~
   block/blk-mq-sched.h:67:18: error: invalid use of undefined type 'struct elevator_queue'
      67 |                 e->type->ops.requeue_request(rq);
         |                  ^~
   block/blk-mq-sched.h: In function 'blk_mq_sched_has_work':
   block/blk-mq-sched.h:74:19: error: invalid use of undefined type 'struct elevator_queue'
      74 |         if (e && e->type->ops.has_work)
         |                   ^~
   block/blk-mq-sched.h:75:25: error: invalid use of undefined type 'struct elevator_queue'
      75 |                 return e->type->ops.has_work(hctx);
         |                         ^~
   block/blk.h: At top level:
>> block/blk.h:206:38: warning: 'struct elevator_type' declared inside parameter list will not be visible outside of this definition or declaration
     206 |                               struct elevator_type *new_e);
         |                                      ^~~~~~~~~~~~~
   In file included from include/trace/define_trace.h:102,
                    from include/trace/hooks/block.h:29,
                    from block/vendor_hooks.c:14:
   include/trace/trace_events.h:27:23: warning: 'str__block__trace_system_name' defined but not used [-Wunused-const-variable=]
      27 | #define __app__(x, y) str__##x##y
         |                       ^~~~~
   include/trace/trace_events.h:28:21: note: in expansion of macro '__app__'
      28 | #define __app(x, y) __app__(x, y)
         |                     ^~~~~~~
   include/trace/trace_events.h:30:29: note: in expansion of macro '__app'
      30 | #define TRACE_SYSTEM_STRING __app(TRACE_SYSTEM_VAR,__trace_system_name)
         |                             ^~~~~
   include/trace/trace_events.h:33:27: note: in expansion of macro 'TRACE_SYSTEM_STRING'
      33 |         static const char TRACE_SYSTEM_STRING[] =       \
         |                           ^~~~~~~~~~~~~~~~~~~
   include/trace/trace_events.h:36:1: note: in expansion of macro 'TRACE_MAKE_SYSTEM_STR'
      36 | TRACE_MAKE_SYSTEM_STR();
         | ^~~~~~~~~~~~~~~~~~~~~

Kconfig warnings: (for reference only)
   WARNING: unmet direct dependencies detected for SND_VMASTER
   Depends on [n]: SOUND [=m] && !UML && SND [=n]
   Selected by [y]:
   - GKI_HIDDEN_SND_CONFIGS [=y]
   WARNING: unmet direct dependencies detected for ARCH_HAS_NONLEAF_PMD_YOUNG
   Depends on [n]: PGTABLE_LEVELS [=2]>2
   Selected by [y]:
   - X86 [=y]
   WARNING: unmet direct dependencies detected for SND_PCM_IEC958
   Depends on [n]: SOUND [=m] && !UML && SND [=n]
   Selected by [y]:
   - GKI_HIDDEN_SND_SOC_CONFIGS [=y]
   WARNING: unmet direct dependencies detected for SND_JACK
   Depends on [n]: SOUND [=m] && !UML && SND [=n]
   Selected by [y]:
   - GKI_HIDDEN_SND_CONFIGS [=y]
   WARNING: unmet direct dependencies detected for SND_JACK_INPUT_DEV
   Depends on [n]: SOUND [=m] && !UML && SND [=n] && SND_JACK [=y]
   Selected by [y]:
   - GKI_HIDDEN_SND_CONFIGS [=y]
   WARNING: unmet direct dependencies detected for SND_PCM_ELD
   Depends on [n]: SOUND [=m] && !UML && SND [=n]
   Selected by [y]:
   - GKI_HIDDEN_SND_CONFIGS [=y]
   WARNING: unmet direct dependencies detected for SND_INTEL_NHLT
   Depends on [n]: SOUND [=m] && !UML && SND [=n]
   Selected by [y]:
   - GKI_HIDDEN_SND_CONFIGS [=y] && ACPI [=y]


vim +42 block/blk-mq-tag.h

32bc15afed04bd John Garry 2020-08-19  41  
cb96a42cc1f50b Ming Lei   2014-06-01 @42  extern unsigned int blk_mq_get_tag(struct blk_mq_alloc_data *data);
cae740a04b4d6d John Garry 2020-02-26  43  extern void blk_mq_put_tag(struct blk_mq_tags *tags, struct blk_mq_ctx *ctx,
cae740a04b4d6d John Garry 2020-02-26  44  			   unsigned int tag);
70f36b6001bf59 Jens Axboe 2017-01-19  45  extern int blk_mq_tag_update_depth(struct blk_mq_hw_ctx *hctx,
70f36b6001bf59 Jens Axboe 2017-01-19  46  					struct blk_mq_tags **tags,
70f36b6001bf59 Jens Axboe 2017-01-19  47  					unsigned int depth, bool can_grow);
32bc15afed04bd John Garry 2020-08-19  48  extern void blk_mq_tag_resize_shared_sbitmap(struct blk_mq_tag_set *set,
32bc15afed04bd John Garry 2020-08-19  49  					     unsigned int size);
32bc15afed04bd John Garry 2020-08-19  50  

:::::: The code at line 42 was first introduced by commit
:::::: cb96a42cc1f50ba1c7b1e9b2343bec80b926107f blk-mq: fix schedule from atomic context

:::::: TO: Ming Lei <[email protected]>
:::::: CC: Jens Axboe <[email protected]>

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