Re: [PATCH] sched: fix warning in bandwidth distribution

From: kernel test robot
Date: Tue Sep 19 2023 - 21:17:22 EST

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Hi Josh,

kernel test robot noticed the following build warnings:

[auto build test WARNING on tip/sched/core]
[also build test WARNING on tip/master tip/auto-latest linus/master v6.6-rc2 next-20230919]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]

url: https://github.com/intel-lab-lkp/linux/commits/Josh-Don/sched-fix-warning-in-bandwidth-distribution/20230920-080712
base: tip/sched/core
patch link: https://lore.kernel.org/r/20230920000559.3872416-1-joshdon%40google.com
patch subject: [PATCH] sched: fix warning in bandwidth distribution
config: m68k-allyesconfig (https://download.01.org/0day-ci/archive/20230920/202309200825.vOa3t8Sx-lkp@xxxxxxxxx/config)
compiler: m68k-linux-gcc (GCC) 13.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20230920/202309200825.vOa3t8Sx-lkp@xxxxxxxxx/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@xxxxxxxxx>
| Closes: https://lore.kernel.org/oe-kbuild-all/202309200825.vOa3t8Sx-lkp@xxxxxxxxx/

All warnings (new ones prefixed by >>):

| ^~~~~~~~~~~~~~~
kernel/sched/fair.c:5819:9: note: in expansion of macro 'list_for_each_entry_safe'
5819 | list_for_each_entry_safe(cfs_rq, tmp, &local_unthrottle,
| ^~~~~~~~~~~~~~~~~~~~~~~~
kernel/sched/fair.c:5820:34: error: 'struct cfs_rq' has no member named 'throttled_csd_list'; did you mean 'throttled_list'?
5820 | throttled_csd_list) {
| ^~~~~~~~~~~~~~~~~~
include/linux/build_bug.h:78:56: note: in definition of macro '__static_assert'
78 | #define __static_assert(expr, msg, ...) _Static_assert(expr, msg)
| ^~~~
include/linux/container_of.h:20:9: note: in expansion of macro 'static_assert'
20 | static_assert(__same_type(*(ptr), ((type *)0)->member) || \
| ^~~~~~~~~~~~~
include/linux/container_of.h:20:23: note: in expansion of macro '__same_type'
20 | static_assert(__same_type(*(ptr), ((type *)0)->member) || \
| ^~~~~~~~~~~
include/linux/list.h:601:9: note: in expansion of macro 'container_of'
601 | container_of(ptr, type, member)
| ^~~~~~~~~~~~
include/linux/list.h:645:9: note: in expansion of macro 'list_entry'
645 | list_entry((pos)->member.next, typeof(*(pos)), member)
| ^~~~~~~~~~
include/linux/list.h:858:21: note: in expansion of macro 'list_next_entry'
858 | n = list_next_entry(pos, member); \
| ^~~~~~~~~~~~~~~
kernel/sched/fair.c:5819:9: note: in expansion of macro 'list_for_each_entry_safe'
5819 | list_for_each_entry_safe(cfs_rq, tmp, &local_unthrottle,
| ^~~~~~~~~~~~~~~~~~~~~~~~
kernel/sched/fair.c:5820:34: error: 'struct cfs_rq' has no member named 'throttled_csd_list'; did you mean 'throttled_list'?
5820 | throttled_csd_list) {
| ^~~~~~~~~~~~~~~~~~
include/linux/build_bug.h:78:56: note: in definition of macro '__static_assert'
78 | #define __static_assert(expr, msg, ...) _Static_assert(expr, msg)
| ^~~~
include/linux/container_of.h:20:9: note: in expansion of macro 'static_assert'
20 | static_assert(__same_type(*(ptr), ((type *)0)->member) || \
| ^~~~~~~~~~~~~
include/linux/container_of.h:21:23: note: in expansion of macro '__same_type'
21 | __same_type(*(ptr), void), \
| ^~~~~~~~~~~
include/linux/list.h:601:9: note: in expansion of macro 'container_of'
601 | container_of(ptr, type, member)
| ^~~~~~~~~~~~
include/linux/list.h:645:9: note: in expansion of macro 'list_entry'
645 | list_entry((pos)->member.next, typeof(*(pos)), member)
| ^~~~~~~~~~
include/linux/list.h:858:21: note: in expansion of macro 'list_next_entry'
858 | n = list_next_entry(pos, member); \
| ^~~~~~~~~~~~~~~
kernel/sched/fair.c:5819:9: note: in expansion of macro 'list_for_each_entry_safe'
5819 | list_for_each_entry_safe(cfs_rq, tmp, &local_unthrottle,
| ^~~~~~~~~~~~~~~~~~~~~~~~
include/linux/compiler_types.h:366:27: error: expression in static assertion is not an integer
366 | #define __same_type(a, b) __builtin_types_compatible_p(typeof(a), typeof(b))
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/build_bug.h:78:56: note: in definition of macro '__static_assert'
78 | #define __static_assert(expr, msg, ...) _Static_assert(expr, msg)
| ^~~~
include/linux/container_of.h:20:9: note: in expansion of macro 'static_assert'
20 | static_assert(__same_type(*(ptr), ((type *)0)->member) || \
| ^~~~~~~~~~~~~
include/linux/container_of.h:20:23: note: in expansion of macro '__same_type'
20 | static_assert(__same_type(*(ptr), ((type *)0)->member) || \
| ^~~~~~~~~~~
include/linux/list.h:601:9: note: in expansion of macro 'container_of'
601 | container_of(ptr, type, member)
| ^~~~~~~~~~~~
include/linux/list.h:645:9: note: in expansion of macro 'list_entry'
645 | list_entry((pos)->member.next, typeof(*(pos)), member)
| ^~~~~~~~~~
include/linux/list.h:858:21: note: in expansion of macro 'list_next_entry'
858 | n = list_next_entry(pos, member); \
| ^~~~~~~~~~~~~~~
kernel/sched/fair.c:5819:9: note: in expansion of macro 'list_for_each_entry_safe'
5819 | list_for_each_entry_safe(cfs_rq, tmp, &local_unthrottle,
| ^~~~~~~~~~~~~~~~~~~~~~~~
kernel/sched/fair.c:5820:34: error: 'struct cfs_rq' has no member named 'throttled_csd_list'; did you mean 'throttled_list'?
5820 | throttled_csd_list) {
| ^~~~~~~~~~~~~~~~~~
include/linux/stddef.h:16:58: note: in definition of macro 'offsetof'
16 | #define offsetof(TYPE, MEMBER) __builtin_offsetof(TYPE, MEMBER)
| ^~~~~~
include/linux/list.h:601:9: note: in expansion of macro 'container_of'
601 | container_of(ptr, type, member)
| ^~~~~~~~~~~~
include/linux/list.h:645:9: note: in expansion of macro 'list_entry'
645 | list_entry((pos)->member.next, typeof(*(pos)), member)
| ^~~~~~~~~~
include/linux/list.h:858:21: note: in expansion of macro 'list_next_entry'
858 | n = list_next_entry(pos, member); \
| ^~~~~~~~~~~~~~~
kernel/sched/fair.c:5819:9: note: in expansion of macro 'list_for_each_entry_safe'
5819 | list_for_each_entry_safe(cfs_rq, tmp, &local_unthrottle,
| ^~~~~~~~~~~~~~~~~~~~~~~~
In file included from include/linux/preempt.h:12,
from arch/m68k/include/asm/irqflags.h:6,
from include/linux/irqflags.h:17,
from arch/m68k/include/asm/atomic.h:6,
from include/linux/atomic.h:7,
from include/linux/cpumask.h:13:
>> include/linux/list.h:857:64: warning: left-hand operand of comma expression has no effect [-Wunused-value]
857 | for (pos = list_first_entry(head, typeof(*pos), member), \
| ^
kernel/sched/fair.c:5819:9: note: in expansion of macro 'list_for_each_entry_safe'
5819 | list_for_each_entry_safe(cfs_rq, tmp, &local_unthrottle,
| ^~~~~~~~~~~~~~~~~~~~~~~~
kernel/sched/fair.c:5820:34: error: 'struct cfs_rq' has no member named 'throttled_csd_list'; did you mean 'throttled_list'?
5820 | throttled_csd_list) {
| ^~~~~~~~~~~~~~~~~~
include/linux/list.h:761:16: note: in definition of macro 'list_entry_is_head'
761 | (&pos->member == (head))
| ^~~~~~
kernel/sched/fair.c:5819:9: note: in expansion of macro 'list_for_each_entry_safe'
5819 | list_for_each_entry_safe(cfs_rq, tmp, &local_unthrottle,
| ^~~~~~~~~~~~~~~~~~~~~~~~
kernel/sched/fair.c:5820:34: error: 'struct cfs_rq' has no member named 'throttled_csd_list'; did you mean 'throttled_list'?
5820 | throttled_csd_list) {
| ^~~~~~~~~~~~~~~~~~
include/linux/container_of.h:19:33: note: in definition of macro 'container_of'
19 | void *__mptr = (void *)(ptr); \
| ^~~
include/linux/list.h:645:9: note: in expansion of macro 'list_entry'
645 | list_entry((pos)->member.next, typeof(*(pos)), member)
| ^~~~~~~~~~
include/linux/list.h:860:27: note: in expansion of macro 'list_next_entry'
860 | pos = n, n = list_next_entry(n, member))
| ^~~~~~~~~~~~~~~
kernel/sched/fair.c:5819:9: note: in expansion of macro 'list_for_each_entry_safe'
5819 | list_for_each_entry_safe(cfs_rq, tmp, &local_unthrottle,
| ^~~~~~~~~~~~~~~~~~~~~~~~
kernel/sched/fair.c:5820:34: error: 'struct cfs_rq' has no member named 'throttled_csd_list'; did you mean 'throttled_list'?
5820 | throttled_csd_list) {
| ^~~~~~~~~~~~~~~~~~
include/linux/build_bug.h:78:56: note: in definition of macro '__static_assert'
78 | #define __static_assert(expr, msg, ...) _Static_assert(expr, msg)
| ^~~~
include/linux/container_of.h:20:9: note: in expansion of macro 'static_assert'
20 | static_assert(__same_type(*(ptr), ((type *)0)->member) || \
| ^~~~~~~~~~~~~
include/linux/container_of.h:20:23: note: in expansion of macro '__same_type'
20 | static_assert(__same_type(*(ptr), ((type *)0)->member) || \
| ^~~~~~~~~~~
include/linux/list.h:601:9: note: in expansion of macro 'container_of'
601 | container_of(ptr, type, member)
| ^~~~~~~~~~~~
include/linux/list.h:645:9: note: in expansion of macro 'list_entry'
645 | list_entry((pos)->member.next, typeof(*(pos)), member)
| ^~~~~~~~~~
include/linux/list.h:860:27: note: in expansion of macro 'list_next_entry'
860 | pos = n, n = list_next_entry(n, member))
| ^~~~~~~~~~~~~~~
kernel/sched/fair.c:5819:9: note: in expansion of macro 'list_for_each_entry_safe'
5819 | list_for_each_entry_safe(cfs_rq, tmp, &local_unthrottle,
| ^~~~~~~~~~~~~~~~~~~~~~~~
kernel/sched/fair.c:5820:34: error: 'struct cfs_rq' has no member named 'throttled_csd_list'; did you mean 'throttled_list'?
5820 | throttled_csd_list) {
| ^~~~~~~~~~~~~~~~~~
include/linux/build_bug.h:78:56: note: in definition of macro '__static_assert'
78 | #define __static_assert(expr, msg, ...) _Static_assert(expr, msg)
| ^~~~
include/linux/container_of.h:20:9: note: in expansion of macro 'static_assert'
20 | static_assert(__same_type(*(ptr), ((type *)0)->member) || \
| ^~~~~~~~~~~~~
include/linux/container_of.h:20:23: note: in expansion of macro '__same_type'
20 | static_assert(__same_type(*(ptr), ((type *)0)->member) || \
| ^~~~~~~~~~~
include/linux/list.h:601:9: note: in expansion of macro 'container_of'
601 | container_of(ptr, type, member)
| ^~~~~~~~~~~~
include/linux/list.h:645:9: note: in expansion of macro 'list_entry'
645 | list_entry((pos)->member.next, typeof(*(pos)), member)
| ^~~~~~~~~~
include/linux/list.h:860:27: note: in expansion of macro 'list_next_entry'
860 | pos = n, n = list_next_entry(n, member))
| ^~~~~~~~~~~~~~~
kernel/sched/fair.c:5819:9: note: in expansion of macro 'list_for_each_entry_safe'
5819 | list_for_each_entry_safe(cfs_rq, tmp, &local_unthrottle,
| ^~~~~~~~~~~~~~~~~~~~~~~~
kernel/sched/fair.c:5820:34: error: 'struct cfs_rq' has no member named 'throttled_csd_list'; did you mean 'throttled_list'?
5820 | throttled_csd_list) {
| ^~~~~~~~~~~~~~~~~~
include/linux/build_bug.h:78:56: note: in definition of macro '__static_assert'
78 | #define __static_assert(expr, msg, ...) _Static_assert(expr, msg)
| ^~~~
include/linux/container_of.h:20:9: note: in expansion of macro 'static_assert'
20 | static_assert(__same_type(*(ptr), ((type *)0)->member) || \
| ^~~~~~~~~~~~~
include/linux/container_of.h:21:23: note: in expansion of macro '__same_type'
21 | __same_type(*(ptr), void), \
| ^~~~~~~~~~~
include/linux/list.h:601:9: note: in expansion of macro 'container_of'
601 | container_of(ptr, type, member)
| ^~~~~~~~~~~~
include/linux/list.h:645:9: note: in expansion of macro 'list_entry'
645 | list_entry((pos)->member.next, typeof(*(pos)), member)
| ^~~~~~~~~~
include/linux/list.h:860:27: note: in expansion of macro 'list_next_entry'
860 | pos = n, n = list_next_entry(n, member))
| ^~~~~~~~~~~~~~~
kernel/sched/fair.c:5819:9: note: in expansion of macro 'list_for_each_entry_safe'
5819 | list_for_each_entry_safe(cfs_rq, tmp, &local_unthrottle,

vim +857 include/linux/list.h

4d70c74659d974 Andy Shevchenko 2022-11-30 753
e130816164e244 Andy Shevchenko 2020-10-15 754 /**
e130816164e244 Andy Shevchenko 2020-10-15 755 * list_entry_is_head - test if the entry points to the head of the list
e130816164e244 Andy Shevchenko 2020-10-15 756 * @pos: the type * to cursor
e130816164e244 Andy Shevchenko 2020-10-15 757 * @head: the head for your list.
e130816164e244 Andy Shevchenko 2020-10-15 758 * @member: the name of the list_head within the struct.
e130816164e244 Andy Shevchenko 2020-10-15 759 */
e130816164e244 Andy Shevchenko 2020-10-15 760 #define list_entry_is_head(pos, head, member) \
e130816164e244 Andy Shevchenko 2020-10-15 761 (&pos->member == (head))
e130816164e244 Andy Shevchenko 2020-10-15 762
^1da177e4c3f41 Linus Torvalds 2005-04-16 763 /**
^1da177e4c3f41 Linus Torvalds 2005-04-16 764 * list_for_each_entry - iterate over list of given type
8e3a67a99231f9 Randy Dunlap 2006-06-25 765 * @pos: the type * to use as a loop cursor.
^1da177e4c3f41 Linus Torvalds 2005-04-16 766 * @head: the head for your list.
3943f42c11896c Andrey Utkin 2014-11-14 767 * @member: the name of the list_head within the struct.
^1da177e4c3f41 Linus Torvalds 2005-04-16 768 */
^1da177e4c3f41 Linus Torvalds 2005-04-16 769 #define list_for_each_entry(pos, head, member) \
93be3c2eb3371f Oleg Nesterov 2013-11-12 770 for (pos = list_first_entry(head, typeof(*pos), member); \
e130816164e244 Andy Shevchenko 2020-10-15 771 !list_entry_is_head(pos, head, member); \
8120e2e5141a42 Oleg Nesterov 2013-11-12 772 pos = list_next_entry(pos, member))
^1da177e4c3f41 Linus Torvalds 2005-04-16 773
^1da177e4c3f41 Linus Torvalds 2005-04-16 774 /**
^1da177e4c3f41 Linus Torvalds 2005-04-16 775 * list_for_each_entry_reverse - iterate backwards over list of given type.
8e3a67a99231f9 Randy Dunlap 2006-06-25 776 * @pos: the type * to use as a loop cursor.
^1da177e4c3f41 Linus Torvalds 2005-04-16 777 * @head: the head for your list.
3943f42c11896c Andrey Utkin 2014-11-14 778 * @member: the name of the list_head within the struct.
^1da177e4c3f41 Linus Torvalds 2005-04-16 779 */
^1da177e4c3f41 Linus Torvalds 2005-04-16 780 #define list_for_each_entry_reverse(pos, head, member) \
93be3c2eb3371f Oleg Nesterov 2013-11-12 781 for (pos = list_last_entry(head, typeof(*pos), member); \
e130816164e244 Andy Shevchenko 2020-10-15 782 !list_entry_is_head(pos, head, member); \
8120e2e5141a42 Oleg Nesterov 2013-11-12 783 pos = list_prev_entry(pos, member))
^1da177e4c3f41 Linus Torvalds 2005-04-16 784
^1da177e4c3f41 Linus Torvalds 2005-04-16 785 /**
72fd4a35a82433 Robert P. J. Day 2007-02-10 786 * list_prepare_entry - prepare a pos entry for use in list_for_each_entry_continue()
^1da177e4c3f41 Linus Torvalds 2005-04-16 787 * @pos: the type * to use as a start point
^1da177e4c3f41 Linus Torvalds 2005-04-16 788 * @head: the head of the list
3943f42c11896c Andrey Utkin 2014-11-14 789 * @member: the name of the list_head within the struct.
fe96e57d77481c Randy Dunlap 2006-06-25 790 *
72fd4a35a82433 Robert P. J. Day 2007-02-10 791 * Prepares a pos entry for use as a start point in list_for_each_entry_continue().
^1da177e4c3f41 Linus Torvalds 2005-04-16 792 */
^1da177e4c3f41 Linus Torvalds 2005-04-16 793 #define list_prepare_entry(pos, head, member) \
^1da177e4c3f41 Linus Torvalds 2005-04-16 794 ((pos) ? : list_entry(head, typeof(*pos), member))
^1da177e4c3f41 Linus Torvalds 2005-04-16 795
^1da177e4c3f41 Linus Torvalds 2005-04-16 796 /**
fe96e57d77481c Randy Dunlap 2006-06-25 797 * list_for_each_entry_continue - continue iteration over list of given type
8e3a67a99231f9 Randy Dunlap 2006-06-25 798 * @pos: the type * to use as a loop cursor.
^1da177e4c3f41 Linus Torvalds 2005-04-16 799 * @head: the head for your list.
3943f42c11896c Andrey Utkin 2014-11-14 800 * @member: the name of the list_head within the struct.
fe96e57d77481c Randy Dunlap 2006-06-25 801 *
fe96e57d77481c Randy Dunlap 2006-06-25 802 * Continue to iterate over list of given type, continuing after
fe96e57d77481c Randy Dunlap 2006-06-25 803 * the current position.
^1da177e4c3f41 Linus Torvalds 2005-04-16 804 */
^1da177e4c3f41 Linus Torvalds 2005-04-16 805 #define list_for_each_entry_continue(pos, head, member) \
8120e2e5141a42 Oleg Nesterov 2013-11-12 806 for (pos = list_next_entry(pos, member); \
e130816164e244 Andy Shevchenko 2020-10-15 807 !list_entry_is_head(pos, head, member); \
8120e2e5141a42 Oleg Nesterov 2013-11-12 808 pos = list_next_entry(pos, member))
^1da177e4c3f41 Linus Torvalds 2005-04-16 809
768f3591e2b1cc Pavel Emelyanov 2007-09-18 810 /**
768f3591e2b1cc Pavel Emelyanov 2007-09-18 811 * list_for_each_entry_continue_reverse - iterate backwards from the given point
768f3591e2b1cc Pavel Emelyanov 2007-09-18 812 * @pos: the type * to use as a loop cursor.
768f3591e2b1cc Pavel Emelyanov 2007-09-18 813 * @head: the head for your list.
3943f42c11896c Andrey Utkin 2014-11-14 814 * @member: the name of the list_head within the struct.
768f3591e2b1cc Pavel Emelyanov 2007-09-18 815 *
768f3591e2b1cc Pavel Emelyanov 2007-09-18 816 * Start to iterate over list of given type backwards, continuing after
768f3591e2b1cc Pavel Emelyanov 2007-09-18 817 * the current position.
768f3591e2b1cc Pavel Emelyanov 2007-09-18 818 */
768f3591e2b1cc Pavel Emelyanov 2007-09-18 819 #define list_for_each_entry_continue_reverse(pos, head, member) \
8120e2e5141a42 Oleg Nesterov 2013-11-12 820 for (pos = list_prev_entry(pos, member); \
e130816164e244 Andy Shevchenko 2020-10-15 821 !list_entry_is_head(pos, head, member); \
8120e2e5141a42 Oleg Nesterov 2013-11-12 822 pos = list_prev_entry(pos, member))
768f3591e2b1cc Pavel Emelyanov 2007-09-18 823
e229c2fb3370a0 Arnaldo Carvalho de Melo 2006-03-20 824 /**
fe96e57d77481c Randy Dunlap 2006-06-25 825 * list_for_each_entry_from - iterate over list of given type from the current point
8e3a67a99231f9 Randy Dunlap 2006-06-25 826 * @pos: the type * to use as a loop cursor.
e229c2fb3370a0 Arnaldo Carvalho de Melo 2006-03-20 827 * @head: the head for your list.
3943f42c11896c Andrey Utkin 2014-11-14 828 * @member: the name of the list_head within the struct.
fe96e57d77481c Randy Dunlap 2006-06-25 829 *
fe96e57d77481c Randy Dunlap 2006-06-25 830 * Iterate over list of given type, continuing from current position.
e229c2fb3370a0 Arnaldo Carvalho de Melo 2006-03-20 831 */
e229c2fb3370a0 Arnaldo Carvalho de Melo 2006-03-20 832 #define list_for_each_entry_from(pos, head, member) \
e130816164e244 Andy Shevchenko 2020-10-15 833 for (; !list_entry_is_head(pos, head, member); \
8120e2e5141a42 Oleg Nesterov 2013-11-12 834 pos = list_next_entry(pos, member))
e229c2fb3370a0 Arnaldo Carvalho de Melo 2006-03-20 835
b862815c3ee7b4 Jiri Pirko 2017-02-03 836 /**
b862815c3ee7b4 Jiri Pirko 2017-02-03 837 * list_for_each_entry_from_reverse - iterate backwards over list of given type
b862815c3ee7b4 Jiri Pirko 2017-02-03 838 * from the current point
b862815c3ee7b4 Jiri Pirko 2017-02-03 839 * @pos: the type * to use as a loop cursor.
b862815c3ee7b4 Jiri Pirko 2017-02-03 840 * @head: the head for your list.
b862815c3ee7b4 Jiri Pirko 2017-02-03 841 * @member: the name of the list_head within the struct.
b862815c3ee7b4 Jiri Pirko 2017-02-03 842 *
b862815c3ee7b4 Jiri Pirko 2017-02-03 843 * Iterate backwards over list of given type, continuing from current position.
b862815c3ee7b4 Jiri Pirko 2017-02-03 844 */
b862815c3ee7b4 Jiri Pirko 2017-02-03 845 #define list_for_each_entry_from_reverse(pos, head, member) \
e130816164e244 Andy Shevchenko 2020-10-15 846 for (; !list_entry_is_head(pos, head, member); \
b862815c3ee7b4 Jiri Pirko 2017-02-03 847 pos = list_prev_entry(pos, member))
b862815c3ee7b4 Jiri Pirko 2017-02-03 848
^1da177e4c3f41 Linus Torvalds 2005-04-16 849 /**
^1da177e4c3f41 Linus Torvalds 2005-04-16 850 * list_for_each_entry_safe - iterate over list of given type safe against removal of list entry
8e3a67a99231f9 Randy Dunlap 2006-06-25 851 * @pos: the type * to use as a loop cursor.
^1da177e4c3f41 Linus Torvalds 2005-04-16 852 * @n: another type * to use as temporary storage
^1da177e4c3f41 Linus Torvalds 2005-04-16 853 * @head: the head for your list.
3943f42c11896c Andrey Utkin 2014-11-14 854 * @member: the name of the list_head within the struct.
^1da177e4c3f41 Linus Torvalds 2005-04-16 855 */
^1da177e4c3f41 Linus Torvalds 2005-04-16 856 #define list_for_each_entry_safe(pos, n, head, member) \
93be3c2eb3371f Oleg Nesterov 2013-11-12 @857 for (pos = list_first_entry(head, typeof(*pos), member), \
8120e2e5141a42 Oleg Nesterov 2013-11-12 858 n = list_next_entry(pos, member); \
e130816164e244 Andy Shevchenko 2020-10-15 859 !list_entry_is_head(pos, head, member); \
8120e2e5141a42 Oleg Nesterov 2013-11-12 860 pos = n, n = list_next_entry(n, member))
^1da177e4c3f41 Linus Torvalds 2005-04-16 861

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