Re: [PATCH v8 09/14] lockdep: Apply crossrelease to completions

From: kbuild test robot
Date: Mon Aug 07 2017 - 20:19:18 EST

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In reply to: kbuild test robot: "Re: [PATCH v8 09/14] lockdep: Apply crossrelease to completions"
Next in thread: Byungchul Park: "[PATCH v8 12/14] lockdep: Apply lock_acquire(release) on __Set(__Clear)PageLocked"
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Hi Byungchul,

[auto build test ERROR on linus/master]
[also build test ERROR on v4.13-rc4 next-20170804]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url: https://github.com/0day-ci/linux/commits/Byungchul-Park/lockdep-Implement-crossrelease-feature/20170807-172617
config: cris-allmodconfig (attached as .config)
compiler: cris-linux-gcc (GCC) 6.2.0
reproduce:
wget https://raw.githubusercontent.com/01org/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# save the attached .config to linux build tree
make.cross ARCH=cris

All error/warnings (new ones prefixed by >>):

In file included from include/linux/pm.h:29:0,
from include/linux/device.h:25,
from include/linux/pci.h:30,
from drivers/usb/host/ehci-hcd.c:24:
include/linux/completion.h:32:27: error: field 'map' has incomplete type
struct lockdep_map_cross map;
^~~
In file included from include/linux/spinlock_types.h:18:0,
from include/linux/spinlock.h:81,
from include/linux/seqlock.h:35,
from include/linux/time.h:5,
from include/linux/stat.h:18,
from include/linux/module.h:10,
from drivers/usb/host/ehci-hcd.c:23:
drivers/usb/host/ehci-hub.c: In function 'ehset_single_step_set_feature':
>> include/linux/lockdep.h:578:4: error: field name not in record or union initializer
{ .map.name = (_name), .map.key = (void *)(_key), \
^
>> include/linux/completion.h:70:2: note: in expansion of macro 'STATIC_CROSS_LOCKDEP_MAP_INIT'
STATIC_CROSS_LOCKDEP_MAP_INIT("(complete)" #work, &(work)) }
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/completion.h:88:27: note: in expansion of macro 'COMPLETION_INITIALIZER'
struct completion work = COMPLETION_INITIALIZER(work)
^~~~~~~~~~~~~~~~~~~~~~
include/linux/completion.h:106:43: note: in expansion of macro 'DECLARE_COMPLETION'
# define DECLARE_COMPLETION_ONSTACK(work) DECLARE_COMPLETION(work)
^~~~~~~~~~~~~~~~~~
drivers/usb/host/ehci-hub.c:811:2: note: in expansion of macro 'DECLARE_COMPLETION_ONSTACK'
DECLARE_COMPLETION_ONSTACK(done);
^~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/lockdep.h:578:4: note: (near initialization for 'done.map')
{ .map.name = (_name), .map.key = (void *)(_key), \
^
>> include/linux/completion.h:70:2: note: in expansion of macro 'STATIC_CROSS_LOCKDEP_MAP_INIT'
STATIC_CROSS_LOCKDEP_MAP_INIT("(complete)" #work, &(work)) }
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/completion.h:88:27: note: in expansion of macro 'COMPLETION_INITIALIZER'
struct completion work = COMPLETION_INITIALIZER(work)
^~~~~~~~~~~~~~~~~~~~~~
include/linux/completion.h:106:43: note: in expansion of macro 'DECLARE_COMPLETION'
# define DECLARE_COMPLETION_ONSTACK(work) DECLARE_COMPLETION(work)
^~~~~~~~~~~~~~~~~~
drivers/usb/host/ehci-hub.c:811:2: note: in expansion of macro 'DECLARE_COMPLETION_ONSTACK'
DECLARE_COMPLETION_ONSTACK(done);
^~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/lockdep.h:578:25: error: field name not in record or union initializer
{ .map.name = (_name), .map.key = (void *)(_key), \
^
>> include/linux/completion.h:70:2: note: in expansion of macro 'STATIC_CROSS_LOCKDEP_MAP_INIT'
STATIC_CROSS_LOCKDEP_MAP_INIT("(complete)" #work, &(work)) }
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/completion.h:88:27: note: in expansion of macro 'COMPLETION_INITIALIZER'
struct completion work = COMPLETION_INITIALIZER(work)
^~~~~~~~~~~~~~~~~~~~~~
include/linux/completion.h:106:43: note: in expansion of macro 'DECLARE_COMPLETION'
# define DECLARE_COMPLETION_ONSTACK(work) DECLARE_COMPLETION(work)
^~~~~~~~~~~~~~~~~~
drivers/usb/host/ehci-hub.c:811:2: note: in expansion of macro 'DECLARE_COMPLETION_ONSTACK'
DECLARE_COMPLETION_ONSTACK(done);
^~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/lockdep.h:578:25: note: (near initialization for 'done.map')
{ .map.name = (_name), .map.key = (void *)(_key), \
^
>> include/linux/completion.h:70:2: note: in expansion of macro 'STATIC_CROSS_LOCKDEP_MAP_INIT'
STATIC_CROSS_LOCKDEP_MAP_INIT("(complete)" #work, &(work)) }
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/completion.h:88:27: note: in expansion of macro 'COMPLETION_INITIALIZER'
struct completion work = COMPLETION_INITIALIZER(work)
^~~~~~~~~~~~~~~~~~~~~~
include/linux/completion.h:106:43: note: in expansion of macro 'DECLARE_COMPLETION'
# define DECLARE_COMPLETION_ONSTACK(work) DECLARE_COMPLETION(work)
^~~~~~~~~~~~~~~~~~
drivers/usb/host/ehci-hub.c:811:2: note: in expansion of macro 'DECLARE_COMPLETION_ONSTACK'
DECLARE_COMPLETION_ONSTACK(done);
^~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/lockdep.h:579:4: error: field name not in record or union initializer
.map.cross = 1, .xlock = STATIC_CROSS_LOCK_INIT(), }
^
>> include/linux/completion.h:70:2: note: in expansion of macro 'STATIC_CROSS_LOCKDEP_MAP_INIT'
STATIC_CROSS_LOCKDEP_MAP_INIT("(complete)" #work, &(work)) }
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/completion.h:88:27: note: in expansion of macro 'COMPLETION_INITIALIZER'
struct completion work = COMPLETION_INITIALIZER(work)
^~~~~~~~~~~~~~~~~~~~~~
include/linux/completion.h:106:43: note: in expansion of macro 'DECLARE_COMPLETION'
# define DECLARE_COMPLETION_ONSTACK(work) DECLARE_COMPLETION(work)
^~~~~~~~~~~~~~~~~~
drivers/usb/host/ehci-hub.c:811:2: note: in expansion of macro 'DECLARE_COMPLETION_ONSTACK'
DECLARE_COMPLETION_ONSTACK(done);
^~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/lockdep.h:579:4: note: (near initialization for 'done.map')
.map.cross = 1, .xlock = STATIC_CROSS_LOCK_INIT(), }
^
>> include/linux/completion.h:70:2: note: in expansion of macro 'STATIC_CROSS_LOCKDEP_MAP_INIT'
STATIC_CROSS_LOCKDEP_MAP_INIT("(complete)" #work, &(work)) }
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/completion.h:88:27: note: in expansion of macro 'COMPLETION_INITIALIZER'
struct completion work = COMPLETION_INITIALIZER(work)
^~~~~~~~~~~~~~~~~~~~~~
include/linux/completion.h:106:43: note: in expansion of macro 'DECLARE_COMPLETION'
# define DECLARE_COMPLETION_ONSTACK(work) DECLARE_COMPLETION(work)
^~~~~~~~~~~~~~~~~~
drivers/usb/host/ehci-hub.c:811:2: note: in expansion of macro 'DECLARE_COMPLETION_ONSTACK'
DECLARE_COMPLETION_ONSTACK(done);
^~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/lockdep.h:579:20: error: field name not in record or union initializer
.map.cross = 1, .xlock = STATIC_CROSS_LOCK_INIT(), }
^
>> include/linux/completion.h:70:2: note: in expansion of macro 'STATIC_CROSS_LOCKDEP_MAP_INIT'
STATIC_CROSS_LOCKDEP_MAP_INIT("(complete)" #work, &(work)) }
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/completion.h:88:27: note: in expansion of macro 'COMPLETION_INITIALIZER'
struct completion work = COMPLETION_INITIALIZER(work)
^~~~~~~~~~~~~~~~~~~~~~
include/linux/completion.h:106:43: note: in expansion of macro 'DECLARE_COMPLETION'
# define DECLARE_COMPLETION_ONSTACK(work) DECLARE_COMPLETION(work)
^~~~~~~~~~~~~~~~~~
drivers/usb/host/ehci-hub.c:811:2: note: in expansion of macro 'DECLARE_COMPLETION_ONSTACK'
DECLARE_COMPLETION_ONSTACK(done);
^~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/lockdep.h:579:20: note: (near initialization for 'done.map')
.map.cross = 1, .xlock = STATIC_CROSS_LOCK_INIT(), }
^
>> include/linux/completion.h:70:2: note: in expansion of macro 'STATIC_CROSS_LOCKDEP_MAP_INIT'
STATIC_CROSS_LOCKDEP_MAP_INIT("(complete)" #work, &(work)) }
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/completion.h:88:27: note: in expansion of macro 'COMPLETION_INITIALIZER'
struct completion work = COMPLETION_INITIALIZER(work)
^~~~~~~~~~~~~~~~~~~~~~
include/linux/completion.h:106:43: note: in expansion of macro 'DECLARE_COMPLETION'
# define DECLARE_COMPLETION_ONSTACK(work) DECLARE_COMPLETION(work)
^~~~~~~~~~~~~~~~~~
drivers/usb/host/ehci-hub.c:811:2: note: in expansion of macro 'DECLARE_COMPLETION_ONSTACK'
DECLARE_COMPLETION_ONSTACK(done);
^~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/lockdep.h:575:4: error: field name not in record or union initializer
{ .nr_acquire = 0,}
^
>> include/linux/lockdep.h:579:29: note: in expansion of macro 'STATIC_CROSS_LOCK_INIT'
.map.cross = 1, .xlock = STATIC_CROSS_LOCK_INIT(), }
^~~~~~~~~~~~~~~~~~~~~~
>> include/linux/completion.h:70:2: note: in expansion of macro 'STATIC_CROSS_LOCKDEP_MAP_INIT'
STATIC_CROSS_LOCKDEP_MAP_INIT("(complete)" #work, &(work)) }
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/completion.h:88:27: note: in expansion of macro 'COMPLETION_INITIALIZER'
struct completion work = COMPLETION_INITIALIZER(work)
^~~~~~~~~~~~~~~~~~~~~~
include/linux/completion.h:106:43: note: in expansion of macro 'DECLARE_COMPLETION'
# define DECLARE_COMPLETION_ONSTACK(work) DECLARE_COMPLETION(work)
^~~~~~~~~~~~~~~~~~
drivers/usb/host/ehci-hub.c:811:2: note: in expansion of macro 'DECLARE_COMPLETION_ONSTACK'
DECLARE_COMPLETION_ONSTACK(done);
^~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/lockdep.h:575:4: note: (near initialization for 'done.map')
{ .nr_acquire = 0,}
^
>> include/linux/lockdep.h:579:29: note: in expansion of macro 'STATIC_CROSS_LOCK_INIT'
.map.cross = 1, .xlock = STATIC_CROSS_LOCK_INIT(), }
^~~~~~~~~~~~~~~~~~~~~~
>> include/linux/completion.h:70:2: note: in expansion of macro 'STATIC_CROSS_LOCKDEP_MAP_INIT'
STATIC_CROSS_LOCKDEP_MAP_INIT("(complete)" #work, &(work)) }
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/completion.h:88:27: note: in expansion of macro 'COMPLETION_INITIALIZER'
struct completion work = COMPLETION_INITIALIZER(work)
^~~~~~~~~~~~~~~~~~~~~~
include/linux/completion.h:106:43: note: in expansion of macro 'DECLARE_COMPLETION'
# define DECLARE_COMPLETION_ONSTACK(work) DECLARE_COMPLETION(work)
^~~~~~~~~~~~~~~~~~
drivers/usb/host/ehci-hub.c:811:2: note: in expansion of macro 'DECLARE_COMPLETION_ONSTACK'
DECLARE_COMPLETION_ONSTACK(done);
^~~~~~~~~~~~~~~~~~~~~~~~~~
--
In file included from include/linux/pm.h:29:0,
from include/linux/device.h:25,
from include/linux/genhd.h:64,
from include/linux/blkdev.h:10,
from drivers/usb/gadget/function/f_fs.c:21:
include/linux/completion.h:32:27: error: field 'map' has incomplete type
struct lockdep_map_cross map;
^~~
In file included from include/linux/rcupdate.h:42:0,
from include/linux/rculist.h:10,
from include/linux/pid.h:4,
from include/linux/sched.h:13,
from include/linux/blkdev.h:4,
from drivers/usb/gadget/function/f_fs.c:21:
drivers/usb/gadget/function/f_fs.c: In function 'ffs_epfile_io':
>> include/linux/lockdep.h:578:4: error: field name not in record or union initializer
{ .map.name = (_name), .map.key = (void *)(_key), \
^
>> include/linux/completion.h:70:2: note: in expansion of macro 'STATIC_CROSS_LOCKDEP_MAP_INIT'
STATIC_CROSS_LOCKDEP_MAP_INIT("(complete)" #work, &(work)) }
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/completion.h:88:27: note: in expansion of macro 'COMPLETION_INITIALIZER'
struct completion work = COMPLETION_INITIALIZER(work)
^~~~~~~~~~~~~~~~~~~~~~
include/linux/completion.h:106:43: note: in expansion of macro 'DECLARE_COMPLETION'
# define DECLARE_COMPLETION_ONSTACK(work) DECLARE_COMPLETION(work)
^~~~~~~~~~~~~~~~~~
drivers/usb/gadget/function/f_fs.c:983:3: note: in expansion of macro 'DECLARE_COMPLETION_ONSTACK'
DECLARE_COMPLETION_ONSTACK(done);
^~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/lockdep.h:578:4: note: (near initialization for 'done.map')
{ .map.name = (_name), .map.key = (void *)(_key), \
^
>> include/linux/completion.h:70:2: note: in expansion of macro 'STATIC_CROSS_LOCKDEP_MAP_INIT'
STATIC_CROSS_LOCKDEP_MAP_INIT("(complete)" #work, &(work)) }
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/completion.h:88:27: note: in expansion of macro 'COMPLETION_INITIALIZER'
struct completion work = COMPLETION_INITIALIZER(work)
^~~~~~~~~~~~~~~~~~~~~~
include/linux/completion.h:106:43: note: in expansion of macro 'DECLARE_COMPLETION'
# define DECLARE_COMPLETION_ONSTACK(work) DECLARE_COMPLETION(work)
^~~~~~~~~~~~~~~~~~
drivers/usb/gadget/function/f_fs.c:983:3: note: in expansion of macro 'DECLARE_COMPLETION_ONSTACK'
DECLARE_COMPLETION_ONSTACK(done);
^~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/lockdep.h:578:25: error: field name not in record or union initializer
{ .map.name = (_name), .map.key = (void *)(_key), \
^
>> include/linux/completion.h:70:2: note: in expansion of macro 'STATIC_CROSS_LOCKDEP_MAP_INIT'
STATIC_CROSS_LOCKDEP_MAP_INIT("(complete)" #work, &(work)) }
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/completion.h:88:27: note: in expansion of macro 'COMPLETION_INITIALIZER'
struct completion work = COMPLETION_INITIALIZER(work)
^~~~~~~~~~~~~~~~~~~~~~
include/linux/completion.h:106:43: note: in expansion of macro 'DECLARE_COMPLETION'
# define DECLARE_COMPLETION_ONSTACK(work) DECLARE_COMPLETION(work)
^~~~~~~~~~~~~~~~~~
drivers/usb/gadget/function/f_fs.c:983:3: note: in expansion of macro 'DECLARE_COMPLETION_ONSTACK'
DECLARE_COMPLETION_ONSTACK(done);
^~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/lockdep.h:578:25: note: (near initialization for 'done.map')
{ .map.name = (_name), .map.key = (void *)(_key), \
^
>> include/linux/completion.h:70:2: note: in expansion of macro 'STATIC_CROSS_LOCKDEP_MAP_INIT'
STATIC_CROSS_LOCKDEP_MAP_INIT("(complete)" #work, &(work)) }
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/completion.h:88:27: note: in expansion of macro 'COMPLETION_INITIALIZER'
struct completion work = COMPLETION_INITIALIZER(work)
^~~~~~~~~~~~~~~~~~~~~~
include/linux/completion.h:106:43: note: in expansion of macro 'DECLARE_COMPLETION'
# define DECLARE_COMPLETION_ONSTACK(work) DECLARE_COMPLETION(work)
^~~~~~~~~~~~~~~~~~
drivers/usb/gadget/function/f_fs.c:983:3: note: in expansion of macro 'DECLARE_COMPLETION_ONSTACK'
DECLARE_COMPLETION_ONSTACK(done);
^~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/lockdep.h:579:4: error: field name not in record or union initializer
.map.cross = 1, .xlock = STATIC_CROSS_LOCK_INIT(), }
^
>> include/linux/completion.h:70:2: note: in expansion of macro 'STATIC_CROSS_LOCKDEP_MAP_INIT'
STATIC_CROSS_LOCKDEP_MAP_INIT("(complete)" #work, &(work)) }
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/completion.h:88:27: note: in expansion of macro 'COMPLETION_INITIALIZER'
struct completion work = COMPLETION_INITIALIZER(work)
^~~~~~~~~~~~~~~~~~~~~~
include/linux/completion.h:106:43: note: in expansion of macro 'DECLARE_COMPLETION'
# define DECLARE_COMPLETION_ONSTACK(work) DECLARE_COMPLETION(work)
^~~~~~~~~~~~~~~~~~
drivers/usb/gadget/function/f_fs.c:983:3: note: in expansion of macro 'DECLARE_COMPLETION_ONSTACK'
DECLARE_COMPLETION_ONSTACK(done);
^~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/lockdep.h:579:4: note: (near initialization for 'done.map')
.map.cross = 1, .xlock = STATIC_CROSS_LOCK_INIT(), }
^
>> include/linux/completion.h:70:2: note: in expansion of macro 'STATIC_CROSS_LOCKDEP_MAP_INIT'
STATIC_CROSS_LOCKDEP_MAP_INIT("(complete)" #work, &(work)) }
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/completion.h:88:27: note: in expansion of macro 'COMPLETION_INITIALIZER'
struct completion work = COMPLETION_INITIALIZER(work)
^~~~~~~~~~~~~~~~~~~~~~
include/linux/completion.h:106:43: note: in expansion of macro 'DECLARE_COMPLETION'
# define DECLARE_COMPLETION_ONSTACK(work) DECLARE_COMPLETION(work)
^~~~~~~~~~~~~~~~~~
drivers/usb/gadget/function/f_fs.c:983:3: note: in expansion of macro 'DECLARE_COMPLETION_ONSTACK'
DECLARE_COMPLETION_ONSTACK(done);
^~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/lockdep.h:579:20: error: field name not in record or union initializer
.map.cross = 1, .xlock = STATIC_CROSS_LOCK_INIT(), }
^
>> include/linux/completion.h:70:2: note: in expansion of macro 'STATIC_CROSS_LOCKDEP_MAP_INIT'
STATIC_CROSS_LOCKDEP_MAP_INIT("(complete)" #work, &(work)) }
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/completion.h:88:27: note: in expansion of macro 'COMPLETION_INITIALIZER'
struct completion work = COMPLETION_INITIALIZER(work)
^~~~~~~~~~~~~~~~~~~~~~
include/linux/completion.h:106:43: note: in expansion of macro 'DECLARE_COMPLETION'
# define DECLARE_COMPLETION_ONSTACK(work) DECLARE_COMPLETION(work)
^~~~~~~~~~~~~~~~~~
drivers/usb/gadget/function/f_fs.c:983:3: note: in expansion of macro 'DECLARE_COMPLETION_ONSTACK'
DECLARE_COMPLETION_ONSTACK(done);
^~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/lockdep.h:579:20: note: (near initialization for 'done.map')
.map.cross = 1, .xlock = STATIC_CROSS_LOCK_INIT(), }
^
>> include/linux/completion.h:70:2: note: in expansion of macro 'STATIC_CROSS_LOCKDEP_MAP_INIT'
STATIC_CROSS_LOCKDEP_MAP_INIT("(complete)" #work, &(work)) }
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/completion.h:88:27: note: in expansion of macro 'COMPLETION_INITIALIZER'
struct completion work = COMPLETION_INITIALIZER(work)
^~~~~~~~~~~~~~~~~~~~~~
include/linux/completion.h:106:43: note: in expansion of macro 'DECLARE_COMPLETION'
# define DECLARE_COMPLETION_ONSTACK(work) DECLARE_COMPLETION(work)
^~~~~~~~~~~~~~~~~~
drivers/usb/gadget/function/f_fs.c:983:3: note: in expansion of macro 'DECLARE_COMPLETION_ONSTACK'
DECLARE_COMPLETION_ONSTACK(done);
^~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/lockdep.h:575:4: error: field name not in record or union initializer
{ .nr_acquire = 0,}
^
>> include/linux/lockdep.h:579:29: note: in expansion of macro 'STATIC_CROSS_LOCK_INIT'
.map.cross = 1, .xlock = STATIC_CROSS_LOCK_INIT(), }
^~~~~~~~~~~~~~~~~~~~~~
>> include/linux/completion.h:70:2: note: in expansion of macro 'STATIC_CROSS_LOCKDEP_MAP_INIT'
STATIC_CROSS_LOCKDEP_MAP_INIT("(complete)" #work, &(work)) }
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/completion.h:88:27: note: in expansion of macro 'COMPLETION_INITIALIZER'
struct completion work = COMPLETION_INITIALIZER(work)
^~~~~~~~~~~~~~~~~~~~~~
include/linux/completion.h:106:43: note: in expansion of macro 'DECLARE_COMPLETION'
# define DECLARE_COMPLETION_ONSTACK(work) DECLARE_COMPLETION(work)
^~~~~~~~~~~~~~~~~~
drivers/usb/gadget/function/f_fs.c:983:3: note: in expansion of macro 'DECLARE_COMPLETION_ONSTACK'
DECLARE_COMPLETION_ONSTACK(done);
^~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/lockdep.h:575:4: note: (near initialization for 'done.map')
{ .nr_acquire = 0,}
^
>> include/linux/lockdep.h:579:29: note: in expansion of macro 'STATIC_CROSS_LOCK_INIT'
.map.cross = 1, .xlock = STATIC_CROSS_LOCK_INIT(), }
^~~~~~~~~~~~~~~~~~~~~~
>> include/linux/completion.h:70:2: note: in expansion of macro 'STATIC_CROSS_LOCKDEP_MAP_INIT'
STATIC_CROSS_LOCKDEP_MAP_INIT("(complete)" #work, &(work)) }
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/completion.h:88:27: note: in expansion of macro 'COMPLETION_INITIALIZER'
struct completion work = COMPLETION_INITIALIZER(work)
^~~~~~~~~~~~~~~~~~~~~~
include/linux/completion.h:106:43: note: in expansion of macro 'DECLARE_COMPLETION'
# define DECLARE_COMPLETION_ONSTACK(work) DECLARE_COMPLETION(work)
^~~~~~~~~~~~~~~~~~
drivers/usb/gadget/function/f_fs.c:983:3: note: in expansion of macro 'DECLARE_COMPLETION_ONSTACK'
DECLARE_COMPLETION_ONSTACK(done);
^~~~~~~~~~~~~~~~~~~~~~~~~~
..

vim +578 include/linux/lockdep.h

c8ffcc97 Byungchul Park 2017-08-07 569
5ec8f43e Byungchul Park 2017-08-07 570 /*
5ec8f43e Byungchul Park 2017-08-07 571 * What we essencially have to initialize is 'nr_acquire'. Other members
5ec8f43e Byungchul Park 2017-08-07 572 * will be initialized in add_xlock().
5ec8f43e Byungchul Park 2017-08-07 573 */
5ec8f43e Byungchul Park 2017-08-07 574 #define STATIC_CROSS_LOCK_INIT() \
5ec8f43e Byungchul Park 2017-08-07 @575 { .nr_acquire = 0,}
5ec8f43e Byungchul Park 2017-08-07 576
c8ffcc97 Byungchul Park 2017-08-07 577 #define STATIC_CROSS_LOCKDEP_MAP_INIT(_name, _key) \
c8ffcc97 Byungchul Park 2017-08-07 @578 { .map.name = (_name), .map.key = (void *)(_key), \
5ec8f43e Byungchul Park 2017-08-07 @579 .map.cross = 1, .xlock = STATIC_CROSS_LOCK_INIT(), }
c8ffcc97 Byungchul Park 2017-08-07 580

:::::: The code at line 578 was first introduced by commit
:::::: c8ffcc977b10be9026a251daeec76048b610e3d4 lockdep: Implement crossrelease feature

:::::: TO: Byungchul Park <byungchul.park@xxxxxxx>
:::::: CC: 0day robot <fengguang.wu@xxxxxxxxx>

---
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