[PATCH] drm/omap: Replace list_for_each with list_for_each_entry
kbuild test robot
lkp at intel.com
Mon Oct 16 21:06:53 UTC 2017
Hi Harsha,
[auto build test ERROR on drm/drm-next]
[also build test ERROR on v4.14-rc5 next-20171013]
[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/Harsha-Sharma/drm-omap-Replace-list_for_each-with-list_for_each_entry/20171017-014028
base: git://people.freedesktop.org/~airlied/linux.git drm-next
config: arm-allmodconfig (attached as .config)
compiler: arm-linux-gnueabi-gcc (Debian 6.1.1-9) 6.1.1 20160705
reproduce:
wget https://raw.githubusercontent.com/intel/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=arm
All error/warnings (new ones prefixed by >>):
In file included from include/linux/linkage.h:4:0,
from include/linux/kernel.h:6,
from drivers/gpu//drm/omapdrm/dss/display.c:25:
drivers/gpu//drm/omapdrm/dss/display.c: In function 'omapdss_register_display':
>> include/linux/list.h:463:43: error: dereferencing pointer to incomplete type 'struct omp_dss_device'
for (pos = list_first_entry(head, typeof(*pos), member); \
include/linux/compiler.h:553:19: note: in definition of macro '__compiletime_assert'
bool __cond = !(condition); \
^~~~~~~~~
include/linux/compiler.h:576:2: note: in expansion of macro '_compiletime_assert'
_compiletime_assert(condition, msg, __compiletime_assert_, __LINE__)
^~~~~~~~~~~~~~~~~~~
include/linux/build_bug.h:46:37: note: in expansion of macro 'compiletime_assert'
#define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg)
^~~~~~~~~~~~~~~~~~
include/linux/kernel.h:870:2: note: in expansion of macro 'BUILD_BUG_ON_MSG'
BUILD_BUG_ON_MSG(!__same_type(*(ptr), ((type *)0)->member) && \
^~~~~~~~~~~~~~~~
include/linux/kernel.h:870:20: note: in expansion of macro '__same_type'
BUILD_BUG_ON_MSG(!__same_type(*(ptr), ((type *)0)->member) && \
^~~~~~~~~~~
>> include/linux/list.h:365:2: note: in expansion of macro 'container_of'
container_of(ptr, type, member)
^~~~~~~~~~~~
>> include/linux/list.h:376:2: note: in expansion of macro 'list_entry'
list_entry((ptr)->next, type, member)
^~~~~~~~~~
>> include/linux/list.h:463:13: note: in expansion of macro 'list_first_entry'
for (pos = list_first_entry(head, typeof(*pos), member); \
^~~~~~~~~~~~~~~~
>> drivers/gpu//drm/omapdrm/dss/display.c:71:2: note: in expansion of macro 'list_for_each_entry'
list_for_each_entry(ldev, &panel_list, panel_list)
^~~~~~~~~~~~~~~~~~~
--
In file included from include/linux/linkage.h:4:0,
from include/linux/kernel.h:6,
from drivers/gpu/drm/omapdrm/dss/display.c:25:
drivers/gpu/drm/omapdrm/dss/display.c: In function 'omapdss_register_display':
>> include/linux/list.h:463:43: error: dereferencing pointer to incomplete type 'struct omp_dss_device'
for (pos = list_first_entry(head, typeof(*pos), member); \
include/linux/compiler.h:553:19: note: in definition of macro '__compiletime_assert'
bool __cond = !(condition); \
^~~~~~~~~
include/linux/compiler.h:576:2: note: in expansion of macro '_compiletime_assert'
_compiletime_assert(condition, msg, __compiletime_assert_, __LINE__)
^~~~~~~~~~~~~~~~~~~
include/linux/build_bug.h:46:37: note: in expansion of macro 'compiletime_assert'
#define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg)
^~~~~~~~~~~~~~~~~~
include/linux/kernel.h:870:2: note: in expansion of macro 'BUILD_BUG_ON_MSG'
BUILD_BUG_ON_MSG(!__same_type(*(ptr), ((type *)0)->member) && \
^~~~~~~~~~~~~~~~
include/linux/kernel.h:870:20: note: in expansion of macro '__same_type'
BUILD_BUG_ON_MSG(!__same_type(*(ptr), ((type *)0)->member) && \
^~~~~~~~~~~
>> include/linux/list.h:365:2: note: in expansion of macro 'container_of'
container_of(ptr, type, member)
^~~~~~~~~~~~
>> include/linux/list.h:376:2: note: in expansion of macro 'list_entry'
list_entry((ptr)->next, type, member)
^~~~~~~~~~
>> include/linux/list.h:463:13: note: in expansion of macro 'list_first_entry'
for (pos = list_first_entry(head, typeof(*pos), member); \
^~~~~~~~~~~~~~~~
drivers/gpu/drm/omapdrm/dss/display.c:71:2: note: in expansion of macro 'list_for_each_entry'
list_for_each_entry(ldev, &panel_list, panel_list)
^~~~~~~~~~~~~~~~~~~
vim +463 include/linux/list.h
^1da177e Linus Torvalds 2005-04-16 357
^1da177e Linus Torvalds 2005-04-16 358 /**
^1da177e Linus Torvalds 2005-04-16 359 * list_entry - get the struct for this entry
^1da177e Linus Torvalds 2005-04-16 360 * @ptr: the &struct list_head pointer.
^1da177e Linus Torvalds 2005-04-16 361 * @type: the type of the struct this is embedded in.
3943f42c Andrey Utkin 2014-11-14 362 * @member: the name of the list_head within the struct.
^1da177e Linus Torvalds 2005-04-16 363 */
^1da177e Linus Torvalds 2005-04-16 364 #define list_entry(ptr, type, member) \
^1da177e Linus Torvalds 2005-04-16 @365 container_of(ptr, type, member)
^1da177e Linus Torvalds 2005-04-16 366
^1da177e Linus Torvalds 2005-04-16 367 /**
b5e61818 Pavel Emelianov 2007-05-08 368 * list_first_entry - get the first element from a list
b5e61818 Pavel Emelianov 2007-05-08 369 * @ptr: the list head to take the element from.
b5e61818 Pavel Emelianov 2007-05-08 370 * @type: the type of the struct this is embedded in.
3943f42c Andrey Utkin 2014-11-14 371 * @member: the name of the list_head within the struct.
b5e61818 Pavel Emelianov 2007-05-08 372 *
b5e61818 Pavel Emelianov 2007-05-08 373 * Note, that list is expected to be not empty.
b5e61818 Pavel Emelianov 2007-05-08 374 */
b5e61818 Pavel Emelianov 2007-05-08 375 #define list_first_entry(ptr, type, member) \
b5e61818 Pavel Emelianov 2007-05-08 @376 list_entry((ptr)->next, type, member)
b5e61818 Pavel Emelianov 2007-05-08 377
b5e61818 Pavel Emelianov 2007-05-08 378 /**
93be3c2e Oleg Nesterov 2013-11-12 379 * list_last_entry - get the last element from a list
93be3c2e Oleg Nesterov 2013-11-12 380 * @ptr: the list head to take the element from.
93be3c2e Oleg Nesterov 2013-11-12 381 * @type: the type of the struct this is embedded in.
3943f42c Andrey Utkin 2014-11-14 382 * @member: the name of the list_head within the struct.
93be3c2e Oleg Nesterov 2013-11-12 383 *
93be3c2e Oleg Nesterov 2013-11-12 384 * Note, that list is expected to be not empty.
93be3c2e Oleg Nesterov 2013-11-12 385 */
93be3c2e Oleg Nesterov 2013-11-12 386 #define list_last_entry(ptr, type, member) \
93be3c2e Oleg Nesterov 2013-11-12 387 list_entry((ptr)->prev, type, member)
93be3c2e Oleg Nesterov 2013-11-12 388
93be3c2e Oleg Nesterov 2013-11-12 389 /**
6d7581e6 Jiri Pirko 2013-05-29 390 * list_first_entry_or_null - get the first element from a list
6d7581e6 Jiri Pirko 2013-05-29 391 * @ptr: the list head to take the element from.
6d7581e6 Jiri Pirko 2013-05-29 392 * @type: the type of the struct this is embedded in.
3943f42c Andrey Utkin 2014-11-14 393 * @member: the name of the list_head within the struct.
6d7581e6 Jiri Pirko 2013-05-29 394 *
6d7581e6 Jiri Pirko 2013-05-29 395 * Note that if the list is empty, it returns NULL.
6d7581e6 Jiri Pirko 2013-05-29 396 */
12adfd88 Chris Wilson 2016-07-23 397 #define list_first_entry_or_null(ptr, type, member) ({ \
12adfd88 Chris Wilson 2016-07-23 398 struct list_head *head__ = (ptr); \
12adfd88 Chris Wilson 2016-07-23 399 struct list_head *pos__ = READ_ONCE(head__->next); \
12adfd88 Chris Wilson 2016-07-23 400 pos__ != head__ ? list_entry(pos__, type, member) : NULL; \
12adfd88 Chris Wilson 2016-07-23 401 })
6d7581e6 Jiri Pirko 2013-05-29 402
6d7581e6 Jiri Pirko 2013-05-29 403 /**
008208c6 Oleg Nesterov 2013-11-12 404 * list_next_entry - get the next element in list
008208c6 Oleg Nesterov 2013-11-12 405 * @pos: the type * to cursor
3943f42c Andrey Utkin 2014-11-14 406 * @member: the name of the list_head within the struct.
008208c6 Oleg Nesterov 2013-11-12 407 */
008208c6 Oleg Nesterov 2013-11-12 408 #define list_next_entry(pos, member) \
008208c6 Oleg Nesterov 2013-11-12 409 list_entry((pos)->member.next, typeof(*(pos)), member)
008208c6 Oleg Nesterov 2013-11-12 410
008208c6 Oleg Nesterov 2013-11-12 411 /**
008208c6 Oleg Nesterov 2013-11-12 412 * list_prev_entry - get the prev element in list
008208c6 Oleg Nesterov 2013-11-12 413 * @pos: the type * to cursor
3943f42c Andrey Utkin 2014-11-14 414 * @member: the name of the list_head within the struct.
008208c6 Oleg Nesterov 2013-11-12 415 */
008208c6 Oleg Nesterov 2013-11-12 416 #define list_prev_entry(pos, member) \
008208c6 Oleg Nesterov 2013-11-12 417 list_entry((pos)->member.prev, typeof(*(pos)), member)
008208c6 Oleg Nesterov 2013-11-12 418
008208c6 Oleg Nesterov 2013-11-12 419 /**
^1da177e Linus Torvalds 2005-04-16 420 * list_for_each - iterate over a list
8e3a67a9 Randy Dunlap 2006-06-25 421 * @pos: the &struct list_head to use as a loop cursor.
^1da177e Linus Torvalds 2005-04-16 422 * @head: the head for your list.
^1da177e Linus Torvalds 2005-04-16 423 */
^1da177e Linus Torvalds 2005-04-16 424 #define list_for_each(pos, head) \
e66eed65 Linus Torvalds 2011-05-19 425 for (pos = (head)->next; pos != (head); pos = pos->next)
^1da177e Linus Torvalds 2005-04-16 426
^1da177e Linus Torvalds 2005-04-16 427 /**
^1da177e Linus Torvalds 2005-04-16 428 * list_for_each_prev - iterate over a list backwards
8e3a67a9 Randy Dunlap 2006-06-25 429 * @pos: the &struct list_head to use as a loop cursor.
^1da177e Linus Torvalds 2005-04-16 430 * @head: the head for your list.
^1da177e Linus Torvalds 2005-04-16 431 */
^1da177e Linus Torvalds 2005-04-16 432 #define list_for_each_prev(pos, head) \
e66eed65 Linus Torvalds 2011-05-19 433 for (pos = (head)->prev; pos != (head); pos = pos->prev)
^1da177e Linus Torvalds 2005-04-16 434
^1da177e Linus Torvalds 2005-04-16 435 /**
^1da177e Linus Torvalds 2005-04-16 436 * list_for_each_safe - iterate over a list safe against removal of list entry
8e3a67a9 Randy Dunlap 2006-06-25 437 * @pos: the &struct list_head to use as a loop cursor.
^1da177e Linus Torvalds 2005-04-16 438 * @n: another &struct list_head to use as temporary storage
^1da177e Linus Torvalds 2005-04-16 439 * @head: the head for your list.
^1da177e Linus Torvalds 2005-04-16 440 */
^1da177e Linus Torvalds 2005-04-16 441 #define list_for_each_safe(pos, n, head) \
^1da177e Linus Torvalds 2005-04-16 442 for (pos = (head)->next, n = pos->next; pos != (head); \
^1da177e Linus Torvalds 2005-04-16 443 pos = n, n = pos->next)
^1da177e Linus Torvalds 2005-04-16 444
^1da177e Linus Torvalds 2005-04-16 445 /**
8f731f7d Randy Dunlap 2007-10-18 446 * list_for_each_prev_safe - iterate over a list backwards safe against removal of list entry
37c42524 Denis V. Lunev 2007-10-16 447 * @pos: the &struct list_head to use as a loop cursor.
37c42524 Denis V. Lunev 2007-10-16 448 * @n: another &struct list_head to use as temporary storage
37c42524 Denis V. Lunev 2007-10-16 449 * @head: the head for your list.
37c42524 Denis V. Lunev 2007-10-16 450 */
37c42524 Denis V. Lunev 2007-10-16 451 #define list_for_each_prev_safe(pos, n, head) \
37c42524 Denis V. Lunev 2007-10-16 452 for (pos = (head)->prev, n = pos->prev; \
e66eed65 Linus Torvalds 2011-05-19 453 pos != (head); \
37c42524 Denis V. Lunev 2007-10-16 454 pos = n, n = pos->prev)
37c42524 Denis V. Lunev 2007-10-16 455
37c42524 Denis V. Lunev 2007-10-16 456 /**
^1da177e Linus Torvalds 2005-04-16 457 * list_for_each_entry - iterate over list of given type
8e3a67a9 Randy Dunlap 2006-06-25 458 * @pos: the type * to use as a loop cursor.
^1da177e Linus Torvalds 2005-04-16 459 * @head: the head for your list.
3943f42c Andrey Utkin 2014-11-14 460 * @member: the name of the list_head within the struct.
^1da177e Linus Torvalds 2005-04-16 461 */
^1da177e Linus Torvalds 2005-04-16 462 #define list_for_each_entry(pos, head, member) \
93be3c2e Oleg Nesterov 2013-11-12 @463 for (pos = list_first_entry(head, typeof(*pos), member); \
e66eed65 Linus Torvalds 2011-05-19 464 &pos->member != (head); \
8120e2e5 Oleg Nesterov 2013-11-12 465 pos = list_next_entry(pos, member))
^1da177e Linus Torvalds 2005-04-16 466
:::::: The code at line 463 was first introduced by commit
:::::: 93be3c2eb3371f022ad88acf1ab6bee8e3c38378 list: introduce list_last_entry(), use list_{first,last}_entry()
:::::: TO: Oleg Nesterov <oleg at redhat.com>
:::::: CC: Linus Torvalds <torvalds at linux-foundation.org>
---
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