Hi Andy, kernel test robot noticed the following build warnings: [auto build test WARNING on tiwai-sound/for-next] [also build test WARNING on tiwai-sound/for-linus linus/master v6.5 next-20230829] [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/Andy-Shevchenko/ALSA-control-Use-list_for_each_entry_safe/20230829-222521 base: https://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound.git for-next patch link: https://lore.kernel.org/r/20230829142307.3916823-1-andriy.shevchenko%40linux.intel.com patch subject: [PATCH v2 1/1] ALSA: control: Use list_for_each_entry_safe() config: x86_64-allyesconfig (https://download.01.org/0day-ci/archive/20230830/202308300312.Uq5j7oU2-lkp@xxxxxxxxx/config) compiler: gcc-12 (Debian 12.2.0-14) 12.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20230830/202308300312.Uq5j7oU2-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/202308300312.Uq5j7oU2-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): include/linux/list.h:520:9: note: in expansion of macro 'container_of' 520 | container_of(ptr, type, member) | ^~~~~~~~~~~~ include/linux/list.h:564:9: note: in expansion of macro 'list_entry' 564 | list_entry((pos)->member.next, typeof(*(pos)), member) | ^~~~~~~~~~ include/linux/list.h:779:27: note: in expansion of macro 'list_next_entry' 779 | pos = n, n = list_next_entry(n, member)) | ^~~~~~~~~~~~~~~ sound/core/control_led.c:304:17: note: in expansion of macro 'list_for_each_entry_safe' 304 | list_for_each_entry_safe(lctl, _lctl, &led->controls, list) | ^~~~~~~~~~~~~~~~~~~~~~~~ include/linux/list.h:564:25: error: invalid type argument of '->' (have 'struct snd_ctl_led_ctl') 564 | list_entry((pos)->member.next, typeof(*(pos)), member) | ^~ 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:520:9: note: in expansion of macro 'container_of' 520 | container_of(ptr, type, member) | ^~~~~~~~~~~~ include/linux/list.h:564:9: note: in expansion of macro 'list_entry' 564 | list_entry((pos)->member.next, typeof(*(pos)), member) | ^~~~~~~~~~ include/linux/list.h:779:27: note: in expansion of macro 'list_next_entry' 779 | pos = n, n = list_next_entry(n, member)) | ^~~~~~~~~~~~~~~ sound/core/control_led.c:304:17: note: in expansion of macro 'list_for_each_entry_safe' 304 | list_for_each_entry_safe(lctl, _lctl, &led->controls, list) | ^~~~~~~~~~~~~~~~~~~~~~~~ include/linux/compiler_types.h:338:27: error: expression in static assertion is not an integer 338 | #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:520:9: note: in expansion of macro 'container_of' 520 | container_of(ptr, type, member) | ^~~~~~~~~~~~ include/linux/list.h:564:9: note: in expansion of macro 'list_entry' 564 | list_entry((pos)->member.next, typeof(*(pos)), member) | ^~~~~~~~~~ include/linux/list.h:779:27: note: in expansion of macro 'list_next_entry' 779 | pos = n, n = list_next_entry(n, member)) | ^~~~~~~~~~~~~~~ sound/core/control_led.c:304:17: note: in expansion of macro 'list_for_each_entry_safe' 304 | list_for_each_entry_safe(lctl, _lctl, &led->controls, list) | ^~~~~~~~~~~~~~~~~~~~~~~~ include/linux/list.h:564:47: error: invalid type argument of unary '*' (have 'struct snd_ctl_led_ctl') 564 | list_entry((pos)->member.next, typeof(*(pos)), member) | ^~~~~~ include/linux/container_of.h:23:11: note: in definition of macro 'container_of' 23 | ((type *)(__mptr - offsetof(type, member))); }) | ^~~~ include/linux/list.h:564:9: note: in expansion of macro 'list_entry' 564 | list_entry((pos)->member.next, typeof(*(pos)), member) | ^~~~~~~~~~ include/linux/list.h:779:27: note: in expansion of macro 'list_next_entry' 779 | pos = n, n = list_next_entry(n, member)) | ^~~~~~~~~~~~~~~ sound/core/control_led.c:304:17: note: in expansion of macro 'list_for_each_entry_safe' 304 | list_for_each_entry_safe(lctl, _lctl, &led->controls, list) | ^~~~~~~~~~~~~~~~~~~~~~~~ In file included from include/uapi/linux/posix_types.h:5, from include/uapi/linux/types.h:14, from include/linux/types.h:6, from include/uapi/linux/sysinfo.h:5, from include/uapi/linux/kernel.h:5, from include/linux/cache.h:5, from include/linux/slab.h:15: include/linux/list.h:564:47: error: invalid type argument of unary '*' (have 'struct snd_ctl_led_ctl') 564 | list_entry((pos)->member.next, typeof(*(pos)), member) | ^~~~~~ include/linux/stddef.h:16:52: note: in definition of macro 'offsetof' 16 | #define offsetof(TYPE, MEMBER) __builtin_offsetof(TYPE, MEMBER) | ^~~~ include/linux/list.h:520:9: note: in expansion of macro 'container_of' 520 | container_of(ptr, type, member) | ^~~~~~~~~~~~ include/linux/list.h:564:9: note: in expansion of macro 'list_entry' 564 | list_entry((pos)->member.next, typeof(*(pos)), member) | ^~~~~~~~~~ include/linux/list.h:779:27: note: in expansion of macro 'list_next_entry' 779 | pos = n, n = list_next_entry(n, member)) | ^~~~~~~~~~~~~~~ sound/core/control_led.c:304:17: note: in expansion of macro 'list_for_each_entry_safe' 304 | list_for_each_entry_safe(lctl, _lctl, &led->controls, list) | ^~~~~~~~~~~~~~~~~~~~~~~~ >> include/linux/list.h:779:21: warning: left-hand operand of comma expression has no effect [-Wunused-value] 779 | pos = n, n = list_next_entry(n, member)) | ^ sound/core/control_led.c:304:17: note: in expansion of macro 'list_for_each_entry_safe' 304 | list_for_each_entry_safe(lctl, _lctl, &led->controls, list) | ^~~~~~~~~~~~~~~~~~~~~~~~ sound/core/control_led.c: In function 'snd_ctl_led_reset': include/linux/container_of.h:18:41: error: incompatible types when assigning to type 'struct snd_ctl_led_ctl' from type 'struct snd_ctl_led_ctl *' 18 | #define container_of(ptr, type, member) ({ \ | ^ include/linux/list.h:520:9: note: in expansion of macro 'container_of' 520 | container_of(ptr, type, member) | ^~~~~~~~~~~~ include/linux/list.h:564:9: note: in expansion of macro 'list_entry' 564 | list_entry((pos)->member.next, typeof(*(pos)), member) | ^~~~~~~~~~ include/linux/list.h:777:21: note: in expansion of macro 'list_next_entry' 777 | n = list_next_entry(pos, member); \ | ^~~~~~~~~~~~~~~ sound/core/control_led.c:329:9: note: in expansion of macro 'list_for_each_entry_safe' 329 | list_for_each_entry_safe(lctl, _lctl, &led->controls, list) | ^~~~~~~~~~~~~~~~~~~~~~~~ sound/core/control_led.c:329:40: error: incompatible types when assigning to type 'struct snd_ctl_led_ctl *' from type 'struct snd_ctl_led_ctl' 329 | list_for_each_entry_safe(lctl, _lctl, &led->controls, list) | ^~~~~ include/linux/list.h:779:20: note: in definition of macro 'list_for_each_entry_safe' 779 | pos = n, n = list_next_entry(n, member)) | ^ include/linux/list.h:564:25: error: invalid type argument of '->' (have 'struct snd_ctl_led_ctl') 564 | list_entry((pos)->member.next, typeof(*(pos)), member) | ^~ include/linux/container_of.h:19:33: note: in definition of macro 'container_of' 19 | void *__mptr = (void *)(ptr); \ | ^~~ include/linux/list.h:564:9: note: in expansion of macro 'list_entry' 564 | list_entry((pos)->member.next, typeof(*(pos)), member) | ^~~~~~~~~~ include/linux/list.h:779:27: note: in expansion of macro 'list_next_entry' 779 | pos = n, n = list_next_entry(n, member)) | ^~~~~~~~~~~~~~~ sound/core/control_led.c:329:9: note: in expansion of macro 'list_for_each_entry_safe' 329 | list_for_each_entry_safe(lctl, _lctl, &led->controls, list) | ^~~~~~~~~~~~~~~~~~~~~~~~ include/linux/list.h:564:25: error: invalid type argument of '->' (have 'struct snd_ctl_led_ctl') 564 | list_entry((pos)->member.next, typeof(*(pos)), member) | ^~ 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:520:9: note: in expansion of macro 'container_of' 520 | container_of(ptr, type, member) | ^~~~~~~~~~~~ include/linux/list.h:564:9: note: in expansion of macro 'list_entry' 564 | list_entry((pos)->member.next, typeof(*(pos)), member) | ^~~~~~~~~~ include/linux/list.h:779:27: note: in expansion of macro 'list_next_entry' 779 | pos = n, n = list_next_entry(n, member)) | ^~~~~~~~~~~~~~~ sound/core/control_led.c:329:9: note: in expansion of macro 'list_for_each_entry_safe' 329 | list_for_each_entry_safe(lctl, _lctl, &led->controls, list) | ^~~~~~~~~~~~~~~~~~~~~~~~ include/linux/list.h:564:47: error: invalid type argument of unary '*' (have 'struct snd_ctl_led_ctl') 564 | list_entry((pos)->member.next, typeof(*(pos)), member) | ^~~~~~ 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:520:9: note: in expansion of macro 'container_of' 520 | container_of(ptr, type, member) | ^~~~~~~~~~~~ include/linux/list.h:564:9: note: in expansion of macro 'list_entry' 564 | list_entry((pos)->member.next, typeof(*(pos)), member) | ^~~~~~~~~~ include/linux/list.h:779:27: note: in expansion of macro 'list_next_entry' 779 | pos = n, n = list_next_entry(n, member)) | ^~~~~~~~~~~~~~~ sound/core/control_led.c:329:9: note: in expansion of macro 'list_for_each_entry_safe' 329 | list_for_each_entry_safe(lctl, _lctl, &led->controls, list) | ^~~~~~~~~~~~~~~~~~~~~~~~ include/linux/list.h:564:25: error: invalid type argument of '->' (have 'struct snd_ctl_led_ctl') 564 | list_entry((pos)->member.next, typeof(*(pos)), member) | ^~ 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:520:9: note: in expansion of macro 'container_of' 520 | container_of(ptr, type, member) | ^~~~~~~~~~~~ include/linux/list.h:564:9: note: in expansion of macro 'list_entry' 564 | list_entry((pos)->member.next, typeof(*(pos)), member) | ^~~~~~~~~~ include/linux/list.h:779:27: note: in expansion of macro 'list_next_entry' 779 | pos = n, n = list_next_entry(n, member)) | ^~~~~~~~~~~~~~~ sound/core/control_led.c:329:9: note: in expansion of macro 'list_for_each_entry_safe' 329 | list_for_each_entry_safe(lctl, _lctl, &led->controls, list) | ^~~~~~~~~~~~~~~~~~~~~~~~ include/linux/compiler_types.h:338:27: error: expression in static assertion is not an integer 338 | #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:520:9: note: in expansion of macro 'container_of' 520 | container_of(ptr, type, member) | ^~~~~~~~~~~~ include/linux/list.h:564:9: note: in expansion of macro 'list_entry' 564 | list_entry((pos)->member.next, typeof(*(pos)), member) | ^~~~~~~~~~ include/linux/list.h:779:27: note: in expansion of macro 'list_next_entry' 779 | pos = n, n = list_next_entry(n, member)) | ^~~~~~~~~~~~~~~ sound/core/control_led.c:329:9: note: in expansion of macro 'list_for_each_entry_safe' 329 | list_for_each_entry_safe(lctl, _lctl, &led->controls, list) | ^~~~~~~~~~~~~~~~~~~~~~~~ include/linux/list.h:564:47: error: invalid type argument of unary '*' (have 'struct snd_ctl_led_ctl') 564 | list_entry((pos)->member.next, typeof(*(pos)), member) | ^~~~~~ include/linux/container_of.h:23:11: note: in definition of macro 'container_of' 23 | ((type *)(__mptr - offsetof(type, member))); }) | ^~~~ include/linux/list.h:564:9: note: in expansion of macro 'list_entry' 564 | list_entry((pos)->member.next, typeof(*(pos)), member) | ^~~~~~~~~~ include/linux/list.h:779:27: note: in expansion of macro 'list_next_entry' 779 | pos = n, n = list_next_entry(n, member)) | ^~~~~~~~~~~~~~~ sound/core/control_led.c:329:9: note: in expansion of macro 'list_for_each_entry_safe' 329 | list_for_each_entry_safe(lctl, _lctl, &led->controls, list) | ^~~~~~~~~~~~~~~~~~~~~~~~ include/linux/list.h:564:47: error: invalid type argument of unary '*' (have 'struct snd_ctl_led_ctl') 564 | list_entry((pos)->member.next, typeof(*(pos)), member) | ^~~~~~ include/linux/stddef.h:16:52: note: in definition of macro 'offsetof' 16 | #define offsetof(TYPE, MEMBER) __builtin_offsetof(TYPE, MEMBER) | ^~~~ include/linux/list.h:520:9: note: in expansion of macro 'container_of' 520 | container_of(ptr, type, member) | ^~~~~~~~~~~~ include/linux/list.h:564:9: note: in expansion of macro 'list_entry' 564 | list_entry((pos)->member.next, typeof(*(pos)), member) | ^~~~~~~~~~ include/linux/list.h:779:27: note: in expansion of macro 'list_next_entry' 779 | pos = n, n = list_next_entry(n, member)) | ^~~~~~~~~~~~~~~ sound/core/control_led.c:329:9: note: in expansion of macro 'list_for_each_entry_safe' 329 | list_for_each_entry_safe(lctl, _lctl, &led->controls, list) | ^~~~~~~~~~~~~~~~~~~~~~~~ >> include/linux/list.h:779:21: warning: left-hand operand of comma expression has no effect [-Wunused-value] 779 | pos = n, n = list_next_entry(n, member)) | ^ sound/core/control_led.c:329:9: note: in expansion of macro 'list_for_each_entry_safe' 329 | list_for_each_entry_safe(lctl, _lctl, &led->controls, list) | ^~~~~~~~~~~~~~~~~~~~~~~~ vim +779 include/linux/list.h 4d70c74659d974 Andy Shevchenko 2022-11-30 672 e130816164e244 Andy Shevchenko 2020-10-15 673 /** e130816164e244 Andy Shevchenko 2020-10-15 674 * list_entry_is_head - test if the entry points to the head of the list e130816164e244 Andy Shevchenko 2020-10-15 675 * @pos: the type * to cursor e130816164e244 Andy Shevchenko 2020-10-15 676 * @head: the head for your list. e130816164e244 Andy Shevchenko 2020-10-15 677 * @member: the name of the list_head within the struct. e130816164e244 Andy Shevchenko 2020-10-15 678 */ e130816164e244 Andy Shevchenko 2020-10-15 679 #define list_entry_is_head(pos, head, member) \ e130816164e244 Andy Shevchenko 2020-10-15 680 (&pos->member == (head)) e130816164e244 Andy Shevchenko 2020-10-15 681 ^1da177e4c3f41 Linus Torvalds 2005-04-16 682 /** ^1da177e4c3f41 Linus Torvalds 2005-04-16 683 * list_for_each_entry - iterate over list of given type 8e3a67a99231f9 Randy Dunlap 2006-06-25 684 * @pos: the type * to use as a loop cursor. ^1da177e4c3f41 Linus Torvalds 2005-04-16 685 * @head: the head for your list. 3943f42c11896c Andrey Utkin 2014-11-14 686 * @member: the name of the list_head within the struct. ^1da177e4c3f41 Linus Torvalds 2005-04-16 687 */ ^1da177e4c3f41 Linus Torvalds 2005-04-16 688 #define list_for_each_entry(pos, head, member) \ 93be3c2eb3371f Oleg Nesterov 2013-11-12 689 for (pos = list_first_entry(head, typeof(*pos), member); \ e130816164e244 Andy Shevchenko 2020-10-15 690 !list_entry_is_head(pos, head, member); \ 8120e2e5141a42 Oleg Nesterov 2013-11-12 691 pos = list_next_entry(pos, member)) ^1da177e4c3f41 Linus Torvalds 2005-04-16 692 ^1da177e4c3f41 Linus Torvalds 2005-04-16 693 /** ^1da177e4c3f41 Linus Torvalds 2005-04-16 694 * list_for_each_entry_reverse - iterate backwards over list of given type. 8e3a67a99231f9 Randy Dunlap 2006-06-25 695 * @pos: the type * to use as a loop cursor. ^1da177e4c3f41 Linus Torvalds 2005-04-16 696 * @head: the head for your list. 3943f42c11896c Andrey Utkin 2014-11-14 697 * @member: the name of the list_head within the struct. ^1da177e4c3f41 Linus Torvalds 2005-04-16 698 */ ^1da177e4c3f41 Linus Torvalds 2005-04-16 699 #define list_for_each_entry_reverse(pos, head, member) \ 93be3c2eb3371f Oleg Nesterov 2013-11-12 700 for (pos = list_last_entry(head, typeof(*pos), member); \ e130816164e244 Andy Shevchenko 2020-10-15 701 !list_entry_is_head(pos, head, member); \ 8120e2e5141a42 Oleg Nesterov 2013-11-12 702 pos = list_prev_entry(pos, member)) ^1da177e4c3f41 Linus Torvalds 2005-04-16 703 ^1da177e4c3f41 Linus Torvalds 2005-04-16 704 /** 72fd4a35a82433 Robert P. J. Day 2007-02-10 705 * list_prepare_entry - prepare a pos entry for use in list_for_each_entry_continue() ^1da177e4c3f41 Linus Torvalds 2005-04-16 706 * @pos: the type * to use as a start point ^1da177e4c3f41 Linus Torvalds 2005-04-16 707 * @head: the head of the list 3943f42c11896c Andrey Utkin 2014-11-14 708 * @member: the name of the list_head within the struct. fe96e57d77481c Randy Dunlap 2006-06-25 709 * 72fd4a35a82433 Robert P. J. Day 2007-02-10 710 * Prepares a pos entry for use as a start point in list_for_each_entry_continue(). ^1da177e4c3f41 Linus Torvalds 2005-04-16 711 */ ^1da177e4c3f41 Linus Torvalds 2005-04-16 712 #define list_prepare_entry(pos, head, member) \ ^1da177e4c3f41 Linus Torvalds 2005-04-16 713 ((pos) ? : list_entry(head, typeof(*pos), member)) ^1da177e4c3f41 Linus Torvalds 2005-04-16 714 ^1da177e4c3f41 Linus Torvalds 2005-04-16 715 /** fe96e57d77481c Randy Dunlap 2006-06-25 716 * list_for_each_entry_continue - continue iteration over list of given type 8e3a67a99231f9 Randy Dunlap 2006-06-25 717 * @pos: the type * to use as a loop cursor. ^1da177e4c3f41 Linus Torvalds 2005-04-16 718 * @head: the head for your list. 3943f42c11896c Andrey Utkin 2014-11-14 719 * @member: the name of the list_head within the struct. fe96e57d77481c Randy Dunlap 2006-06-25 720 * fe96e57d77481c Randy Dunlap 2006-06-25 721 * Continue to iterate over list of given type, continuing after fe96e57d77481c Randy Dunlap 2006-06-25 722 * the current position. ^1da177e4c3f41 Linus Torvalds 2005-04-16 723 */ ^1da177e4c3f41 Linus Torvalds 2005-04-16 724 #define list_for_each_entry_continue(pos, head, member) \ 8120e2e5141a42 Oleg Nesterov 2013-11-12 725 for (pos = list_next_entry(pos, member); \ e130816164e244 Andy Shevchenko 2020-10-15 726 !list_entry_is_head(pos, head, member); \ 8120e2e5141a42 Oleg Nesterov 2013-11-12 727 pos = list_next_entry(pos, member)) ^1da177e4c3f41 Linus Torvalds 2005-04-16 728 768f3591e2b1cc Pavel Emelyanov 2007-09-18 729 /** 768f3591e2b1cc Pavel Emelyanov 2007-09-18 730 * list_for_each_entry_continue_reverse - iterate backwards from the given point 768f3591e2b1cc Pavel Emelyanov 2007-09-18 731 * @pos: the type * to use as a loop cursor. 768f3591e2b1cc Pavel Emelyanov 2007-09-18 732 * @head: the head for your list. 3943f42c11896c Andrey Utkin 2014-11-14 733 * @member: the name of the list_head within the struct. 768f3591e2b1cc Pavel Emelyanov 2007-09-18 734 * 768f3591e2b1cc Pavel Emelyanov 2007-09-18 735 * Start to iterate over list of given type backwards, continuing after 768f3591e2b1cc Pavel Emelyanov 2007-09-18 736 * the current position. 768f3591e2b1cc Pavel Emelyanov 2007-09-18 737 */ 768f3591e2b1cc Pavel Emelyanov 2007-09-18 738 #define list_for_each_entry_continue_reverse(pos, head, member) \ 8120e2e5141a42 Oleg Nesterov 2013-11-12 739 for (pos = list_prev_entry(pos, member); \ e130816164e244 Andy Shevchenko 2020-10-15 740 !list_entry_is_head(pos, head, member); \ 8120e2e5141a42 Oleg Nesterov 2013-11-12 741 pos = list_prev_entry(pos, member)) 768f3591e2b1cc Pavel Emelyanov 2007-09-18 742 e229c2fb3370a0 Arnaldo Carvalho de Melo 2006-03-20 743 /** fe96e57d77481c Randy Dunlap 2006-06-25 744 * list_for_each_entry_from - iterate over list of given type from the current point 8e3a67a99231f9 Randy Dunlap 2006-06-25 745 * @pos: the type * to use as a loop cursor. e229c2fb3370a0 Arnaldo Carvalho de Melo 2006-03-20 746 * @head: the head for your list. 3943f42c11896c Andrey Utkin 2014-11-14 747 * @member: the name of the list_head within the struct. fe96e57d77481c Randy Dunlap 2006-06-25 748 * fe96e57d77481c Randy Dunlap 2006-06-25 749 * Iterate over list of given type, continuing from current position. e229c2fb3370a0 Arnaldo Carvalho de Melo 2006-03-20 750 */ e229c2fb3370a0 Arnaldo Carvalho de Melo 2006-03-20 751 #define list_for_each_entry_from(pos, head, member) \ e130816164e244 Andy Shevchenko 2020-10-15 752 for (; !list_entry_is_head(pos, head, member); \ 8120e2e5141a42 Oleg Nesterov 2013-11-12 753 pos = list_next_entry(pos, member)) e229c2fb3370a0 Arnaldo Carvalho de Melo 2006-03-20 754 b862815c3ee7b4 Jiri Pirko 2017-02-03 755 /** b862815c3ee7b4 Jiri Pirko 2017-02-03 756 * list_for_each_entry_from_reverse - iterate backwards over list of given type b862815c3ee7b4 Jiri Pirko 2017-02-03 757 * from the current point b862815c3ee7b4 Jiri Pirko 2017-02-03 758 * @pos: the type * to use as a loop cursor. b862815c3ee7b4 Jiri Pirko 2017-02-03 759 * @head: the head for your list. b862815c3ee7b4 Jiri Pirko 2017-02-03 760 * @member: the name of the list_head within the struct. b862815c3ee7b4 Jiri Pirko 2017-02-03 761 * b862815c3ee7b4 Jiri Pirko 2017-02-03 762 * Iterate backwards over list of given type, continuing from current position. b862815c3ee7b4 Jiri Pirko 2017-02-03 763 */ b862815c3ee7b4 Jiri Pirko 2017-02-03 764 #define list_for_each_entry_from_reverse(pos, head, member) \ e130816164e244 Andy Shevchenko 2020-10-15 765 for (; !list_entry_is_head(pos, head, member); \ b862815c3ee7b4 Jiri Pirko 2017-02-03 766 pos = list_prev_entry(pos, member)) b862815c3ee7b4 Jiri Pirko 2017-02-03 767 ^1da177e4c3f41 Linus Torvalds 2005-04-16 768 /** ^1da177e4c3f41 Linus Torvalds 2005-04-16 769 * list_for_each_entry_safe - iterate over list of given type safe against removal of list entry 8e3a67a99231f9 Randy Dunlap 2006-06-25 770 * @pos: the type * to use as a loop cursor. ^1da177e4c3f41 Linus Torvalds 2005-04-16 771 * @n: another type * to use as temporary storage ^1da177e4c3f41 Linus Torvalds 2005-04-16 772 * @head: the head for your list. 3943f42c11896c Andrey Utkin 2014-11-14 773 * @member: the name of the list_head within the struct. ^1da177e4c3f41 Linus Torvalds 2005-04-16 774 */ ^1da177e4c3f41 Linus Torvalds 2005-04-16 775 #define list_for_each_entry_safe(pos, n, head, member) \ 93be3c2eb3371f Oleg Nesterov 2013-11-12 776 for (pos = list_first_entry(head, typeof(*pos), member), \ 8120e2e5141a42 Oleg Nesterov 2013-11-12 777 n = list_next_entry(pos, member); \ e130816164e244 Andy Shevchenko 2020-10-15 778 !list_entry_is_head(pos, head, member); \ 8120e2e5141a42 Oleg Nesterov 2013-11-12 @779 pos = n, n = list_next_entry(n, member)) ^1da177e4c3f41 Linus Torvalds 2005-04-16 780 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
