* [android-common:android16-6.12 1/1] drivers/md/dm-bow.c:1293:6: warning: no previous prototype for function 'dm_bow_exit'
@ 2026-03-26 14:54 kernel test robot
0 siblings, 0 replies; only message in thread
From: kernel test robot @ 2026-03-26 14:54 UTC (permalink / raw)
To: cros-kernel-buildreports; +Cc: oe-kbuild-all
Hi Paul,
FYI, the error/warning still remains.
tree: https://android.googlesource.com/kernel/common android16-6.12
head: d73a8ddf419e5ee819fff624cf35bfedd85b5609
commit: dcb994383d2b1641ebe7b518caab88d2d9dbfa72 [1/1] Revert "ANDROID: dm-bow: remove dm-bow"
config: arm64-allmodconfig (https://download.01.org/0day-ci/archive/20260326/202603262256.Ts6AEUb5-lkp@intel.com/config)
compiler: clang version 19.1.7 (https://github.com/llvm/llvm-project cd708029e0b2869e80abe31ddb175f7c35361f90)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260326/202603262256.Ts6AEUb5-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/202603262256.Ts6AEUb5-lkp@intel.com/
All warnings (new ones prefixed by >>):
In file included from arch/arm64/include/asm/cacheflush.h:11:
In file included from include/linux/kgdb.h:19:
In file included from include/linux/kprobes.h:28:
In file included from include/linux/ftrace.h:13:
In file included from include/linux/kallsyms.h:13:
In file included from include/linux/mm.h:2228:
include/linux/vmstat.h:500:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]
500 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~ ^
501 | item];
| ~~~~
include/linux/vmstat.h:507:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]
507 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~ ^
508 | NR_VM_NUMA_EVENT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~~
include/linux/vmstat.h:514:36: warning: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Wenum-enum-conversion]
514 | return node_stat_name(NR_LRU_BASE + lru) + 3; // skip "nr_"
| ~~~~~~~~~~~ ^ ~~~
include/linux/vmstat.h:519:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]
519 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~ ^
520 | NR_VM_NUMA_EVENT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~~
include/linux/vmstat.h:528:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]
528 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~ ^
529 | NR_VM_NUMA_EVENT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~~
drivers/md/dm-bow.c:97:10: warning: no previous prototype for function 'range_top' [-Wmissing-prototypes]
97 | sector_t range_top(struct bow_range *br)
| ^
drivers/md/dm-bow.c:97:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
97 | sector_t range_top(struct bow_range *br)
| ^
| static
drivers/md/dm-bow.c:103:5: warning: no previous prototype for function 'range_size' [-Wmissing-prototypes]
103 | u64 range_size(struct bow_range *br)
| ^
drivers/md/dm-bow.c:103:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
103 | u64 range_size(struct bow_range *br)
| ^
| static
drivers/md/dm-bow.c:148:6: warning: no previous prototype for function 'add_before' [-Wmissing-prototypes]
148 | void add_before(struct rb_root *ranges, struct bow_range *new_br,
| ^
drivers/md/dm-bow.c:148:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
148 | void add_before(struct rb_root *ranges, struct bow_range *new_br,
| ^
| static
drivers/md/dm-bow.c:592:3: error: field designator 'default_attrs' does not refer to any field in type 'struct kobj_type'
592 | .default_attrs = bow_attrs,
| ~^~~~~~~~~~~~~~~~~~~~~~~~~
drivers/md/dm-bow.c:712:6: error: no member named 'num_write_same_bios' in 'struct dm_target'; did you mean 'num_write_zeroes_bios'?
712 | ti->num_write_same_bios = 1;
| ^~~~~~~~~~~~~~~~~~~
| num_write_zeroes_bios
include/linux/device-mapper.h:339:15: note: 'num_write_zeroes_bios' declared here
339 | unsigned int num_write_zeroes_bios;
| ^
drivers/md/dm-bow.c:749:19: error: too few arguments to function call, expected 7, have 6
748 | bc->bufio = dm_bufio_client_create(bc->dev->bdev, bc->block_size, 1, 0,
| ~~~~~~~~~~~~~~~~~~~~~~
749 | NULL, NULL);
| ^
include/linux/dm-bufio.h:30:1: note: 'dm_bufio_client_create' declared here
30 | dm_bufio_client_create(struct block_device *bdev, unsigned int block_size,
| ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
31 | unsigned int reserved_buffers, unsigned int aux_size,
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
32 | void (*alloc_callback)(struct dm_buffer *),
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
33 | void (*write_callback)(struct dm_buffer *),
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
34 | unsigned int flags);
| ~~~~~~~~~~~~~~~~~~
drivers/md/dm-bow.c:1096:5: warning: no previous prototype for function 'remap_unless_illegal_trim' [-Wmissing-prototypes]
1096 | int remap_unless_illegal_trim(struct bow_context *bc, struct bio *bio)
| ^
drivers/md/dm-bow.c:1096:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
1096 | int remap_unless_illegal_trim(struct bow_context *bc, struct bio *bio)
| ^
| static
drivers/md/dm-bow.c:1259:43: error: no member named 'bd_inode' in 'struct block_device'
1259 | return ti->len != i_size_read(dev->bdev->bd_inode) >> SECTOR_SHIFT;
| ~~~~~~~~~ ^
drivers/md/dm-bow.c:1252:5: warning: no previous prototype for function 'dm_bow_prepare_ioctl' [-Wmissing-prototypes]
1252 | int dm_bow_prepare_ioctl(struct dm_target *ti, struct block_device **bdev)
| ^
drivers/md/dm-bow.c:1252:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
1252 | int dm_bow_prepare_ioctl(struct dm_target *ti, struct block_device **bdev)
| ^
| static
drivers/md/dm-bow.c:1284:12: warning: no previous prototype for function 'dm_bow_init' [-Wmissing-prototypes]
1284 | int __init dm_bow_init(void)
| ^
drivers/md/dm-bow.c:1284:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
1284 | int __init dm_bow_init(void)
| ^
| static
>> drivers/md/dm-bow.c:1293:6: warning: no previous prototype for function 'dm_bow_exit' [-Wmissing-prototypes]
1293 | void dm_bow_exit(void)
| ^
drivers/md/dm-bow.c:1293:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
1293 | void dm_bow_exit(void)
| ^
| static
12 warnings and 4 errors generated.
Kconfig warnings: (for reference only)
WARNING: unmet direct dependencies detected for INTEL_MEI_ME
Depends on [n]: X86 && PCI [=y]
Selected by [m]:
- INTEL_MEI_HDCP [=m] && (DRM_I915 [=n] || DRM_XE [=m])
- INTEL_MEI_PXP [=m] && (DRM_I915 [=n] || DRM_XE [=m])
vim +/dm_bow_exit +1293 drivers/md/dm-bow.c
1292
> 1293 void dm_bow_exit(void)
1294 {
1295 dm_unregister_target(&bow_target);
1296 }
1297
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
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2026-03-26 14:54 [android-common:android16-6.12 1/1] drivers/md/dm-bow.c:1293:6: warning: no previous prototype for function 'dm_bow_exit' kernel test robot
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