Hi Faiyaz, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on v5.13-rc4] [cannot apply to hnaz-linux-mm/master next-20210604] [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] url: https://github.com/0day-ci/linux/commits/Faiyaz-Mohammed/mm-slub-move-sysfs-slab-alloc-free-interfaces-to-debugfs/20210607-001659 base: 8124c8a6b35386f73523d27eacb71b5364a68c4c config: sparc-randconfig-r003-20210606 (attached as .config) compiler: sparc64-linux-gcc (GCC) 9.3.0 reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # https://github.com/0day-ci/linux/commit/f7385626eb41e6154132519bd9b836f91eb7f93c git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Faiyaz-Mohammed/mm-slub-move-sysfs-slab-alloc-free-interfaces-to-debugfs/20210607-001659 git checkout f7385626eb41e6154132519bd9b836f91eb7f93c # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=sparc If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot All warnings (new ones prefixed by >>): In file included from include/linux/preempt.h:11, from include/linux/spinlock.h:51, from include/linux/mmzone.h:8, from include/linux/gfp.h:6, from include/linux/mm.h:10, from mm/slub.c:13: mm/slub.c: In function 'slab_debug_trace_open': >> include/linux/list.h:628:2: warning: this 'for' clause does not guard... [-Wmisleading-indentation] 628 | for (pos = list_first_entry(head, typeof(*pos), member); \ | ^~~ mm/slub.c:5863:3: note: in expansion of macro 'list_for_each_entry' 5863 | list_for_each_entry(page, &n->full, slab_list) | ^~~~~~~~~~~~~~~~~~~ mm/slub.c:5865:4: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'for' 5865 | spin_unlock_irqrestore(&n->list_lock, flags); | ^~~~~~~~~~~~~~~~~~~~~~ vim +/for +628 include/linux/list.h 6d7581e62f8be4 Jiri Pirko 2013-05-29 548 008208c6b26f21 Oleg Nesterov 2013-11-12 549 /** 008208c6b26f21 Oleg Nesterov 2013-11-12 550 * list_next_entry - get the next element in list 008208c6b26f21 Oleg Nesterov 2013-11-12 551 * @pos: the type * to cursor 3943f42c11896c Andrey Utkin 2014-11-14 552 * @member: the name of the list_head within the struct. 008208c6b26f21 Oleg Nesterov 2013-11-12 553 */ 008208c6b26f21 Oleg Nesterov 2013-11-12 554 #define list_next_entry(pos, member) \ 008208c6b26f21 Oleg Nesterov 2013-11-12 555 list_entry((pos)->member.next, typeof(*(pos)), member) 008208c6b26f21 Oleg Nesterov 2013-11-12 556 008208c6b26f21 Oleg Nesterov 2013-11-12 557 /** 008208c6b26f21 Oleg Nesterov 2013-11-12 558 * list_prev_entry - get the prev element in list 008208c6b26f21 Oleg Nesterov 2013-11-12 559 * @pos: the type * to cursor 3943f42c11896c Andrey Utkin 2014-11-14 560 * @member: the name of the list_head within the struct. 008208c6b26f21 Oleg Nesterov 2013-11-12 561 */ 008208c6b26f21 Oleg Nesterov 2013-11-12 562 #define list_prev_entry(pos, member) \ 008208c6b26f21 Oleg Nesterov 2013-11-12 563 list_entry((pos)->member.prev, typeof(*(pos)), member) 008208c6b26f21 Oleg Nesterov 2013-11-12 564 ^1da177e4c3f41 Linus Torvalds 2005-04-16 565 /** ^1da177e4c3f41 Linus Torvalds 2005-04-16 566 * list_for_each - iterate over a list 8e3a67a99231f9 Randy Dunlap 2006-06-25 567 * @pos: the &struct list_head to use as a loop cursor. ^1da177e4c3f41 Linus Torvalds 2005-04-16 568 * @head: the head for your list. ^1da177e4c3f41 Linus Torvalds 2005-04-16 569 */ ^1da177e4c3f41 Linus Torvalds 2005-04-16 570 #define list_for_each(pos, head) \ e66eed651fd18a Linus Torvalds 2011-05-19 571 for (pos = (head)->next; pos != (head); pos = pos->next) ^1da177e4c3f41 Linus Torvalds 2005-04-16 572 28ca0d6d39ab1d Pavel Begunkov 2019-11-29 573 /** 28ca0d6d39ab1d Pavel Begunkov 2019-11-29 574 * list_for_each_continue - continue iteration over a list 28ca0d6d39ab1d Pavel Begunkov 2019-11-29 575 * @pos: the &struct list_head to use as a loop cursor. 28ca0d6d39ab1d Pavel Begunkov 2019-11-29 576 * @head: the head for your list. 28ca0d6d39ab1d Pavel Begunkov 2019-11-29 577 * 28ca0d6d39ab1d Pavel Begunkov 2019-11-29 578 * Continue to iterate over a list, continuing after the current position. 28ca0d6d39ab1d Pavel Begunkov 2019-11-29 579 */ 28ca0d6d39ab1d Pavel Begunkov 2019-11-29 580 #define list_for_each_continue(pos, head) \ 28ca0d6d39ab1d Pavel Begunkov 2019-11-29 581 for (pos = pos->next; pos != (head); pos = pos->next) 28ca0d6d39ab1d Pavel Begunkov 2019-11-29 582 ^1da177e4c3f41 Linus Torvalds 2005-04-16 583 /** ^1da177e4c3f41 Linus Torvalds 2005-04-16 584 * list_for_each_prev - iterate over a list backwards 8e3a67a99231f9 Randy Dunlap 2006-06-25 585 * @pos: the &struct list_head to use as a loop cursor. ^1da177e4c3f41 Linus Torvalds 2005-04-16 586 * @head: the head for your list. ^1da177e4c3f41 Linus Torvalds 2005-04-16 587 */ ^1da177e4c3f41 Linus Torvalds 2005-04-16 588 #define list_for_each_prev(pos, head) \ e66eed651fd18a Linus Torvalds 2011-05-19 589 for (pos = (head)->prev; pos != (head); pos = pos->prev) ^1da177e4c3f41 Linus Torvalds 2005-04-16 590 ^1da177e4c3f41 Linus Torvalds 2005-04-16 591 /** ^1da177e4c3f41 Linus Torvalds 2005-04-16 592 * list_for_each_safe - iterate over a list safe against removal of list entry 8e3a67a99231f9 Randy Dunlap 2006-06-25 593 * @pos: the &struct list_head to use as a loop cursor. ^1da177e4c3f41 Linus Torvalds 2005-04-16 594 * @n: another &struct list_head to use as temporary storage ^1da177e4c3f41 Linus Torvalds 2005-04-16 595 * @head: the head for your list. ^1da177e4c3f41 Linus Torvalds 2005-04-16 596 */ ^1da177e4c3f41 Linus Torvalds 2005-04-16 597 #define list_for_each_safe(pos, n, head) \ ^1da177e4c3f41 Linus Torvalds 2005-04-16 598 for (pos = (head)->next, n = pos->next; pos != (head); \ ^1da177e4c3f41 Linus Torvalds 2005-04-16 599 pos = n, n = pos->next) ^1da177e4c3f41 Linus Torvalds 2005-04-16 600 37c42524d60906 Denis V. Lunev 2007-10-16 601 /** 8f731f7d83d6c6 Randy Dunlap 2007-10-18 602 * list_for_each_prev_safe - iterate over a list backwards safe against removal of list entry 37c42524d60906 Denis V. Lunev 2007-10-16 603 * @pos: the &struct list_head to use as a loop cursor. 37c42524d60906 Denis V. Lunev 2007-10-16 604 * @n: another &struct list_head to use as temporary storage 37c42524d60906 Denis V. Lunev 2007-10-16 605 * @head: the head for your list. 37c42524d60906 Denis V. Lunev 2007-10-16 606 */ 37c42524d60906 Denis V. Lunev 2007-10-16 607 #define list_for_each_prev_safe(pos, n, head) \ 37c42524d60906 Denis V. Lunev 2007-10-16 608 for (pos = (head)->prev, n = pos->prev; \ e66eed651fd18a Linus Torvalds 2011-05-19 609 pos != (head); \ 37c42524d60906 Denis V. Lunev 2007-10-16 610 pos = n, n = pos->prev) 37c42524d60906 Denis V. Lunev 2007-10-16 611 e130816164e244 Andy Shevchenko 2020-10-15 612 /** e130816164e244 Andy Shevchenko 2020-10-15 613 * list_entry_is_head - test if the entry points to the head of the list e130816164e244 Andy Shevchenko 2020-10-15 614 * @pos: the type * to cursor e130816164e244 Andy Shevchenko 2020-10-15 615 * @head: the head for your list. e130816164e244 Andy Shevchenko 2020-10-15 616 * @member: the name of the list_head within the struct. e130816164e244 Andy Shevchenko 2020-10-15 617 */ e130816164e244 Andy Shevchenko 2020-10-15 618 #define list_entry_is_head(pos, head, member) \ e130816164e244 Andy Shevchenko 2020-10-15 619 (&pos->member == (head)) e130816164e244 Andy Shevchenko 2020-10-15 620 ^1da177e4c3f41 Linus Torvalds 2005-04-16 621 /** ^1da177e4c3f41 Linus Torvalds 2005-04-16 622 * list_for_each_entry - iterate over list of given type 8e3a67a99231f9 Randy Dunlap 2006-06-25 623 * @pos: the type * to use as a loop cursor. ^1da177e4c3f41 Linus Torvalds 2005-04-16 624 * @head: the head for your list. 3943f42c11896c Andrey Utkin 2014-11-14 625 * @member: the name of the list_head within the struct. ^1da177e4c3f41 Linus Torvalds 2005-04-16 626 */ ^1da177e4c3f41 Linus Torvalds 2005-04-16 627 #define list_for_each_entry(pos, head, member) \ 93be3c2eb3371f Oleg Nesterov 2013-11-12 @628 for (pos = list_first_entry(head, typeof(*pos), member); \ e130816164e244 Andy Shevchenko 2020-10-15 629 !list_entry_is_head(pos, head, member); \ 8120e2e5141a42 Oleg Nesterov 2013-11-12 630 pos = list_next_entry(pos, member)) ^1da177e4c3f41 Linus Torvalds 2005-04-16 631 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org