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charset=us-ascii tree: https://github.com/jimc/linux.git jump-batch-260903 head: c2b43d468878ecfd9647a8eea621ceda5d1cd208 commit: ac471b8cc89b36ddb96940b2bd214217c4bab1fe [51/56] x86/alternative, jump_label, dyndbg: fix early boot crashes and locking in jump-batch-core-1 config: arm-allyesconfig (https://download.01.org/0day-ci/archive/20260906/202609062305.5uATbcF2-lkp@intel.com/config) compiler: arm-linux-gnueabi-gcc (GCC) 16.1.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260906/202609062305.5uATbcF2-lkp@intel.com/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 | Closes: https://lore.kernel.org/oe-kbuild-all/202609062305.5uATbcF2-lkp@intel.com/ All warnings (new ones prefixed by >>): lib/dynamic_debug.c: In function 'ddebug_apply_class_bitmap': >> lib/dynamic_debug.c:793:1: warning: the frame size of 1296 bytes is larger than 1280 bytes [-Wframe-larger-than=] 793 | } | ^ vim +793 lib/dynamic_debug.c a2d375eda771a6 Jim Cromie 2020-08-31 744 0a63a411361860 Jim Cromie 2025-11-18 745 /* apply a new class-param setting */ b9400852c0801a Jim Cromie 2022-09-04 746 static int ddebug_apply_class_bitmap(const struct ddebug_class_param *dcp, 1ec0f7ef1e9ab3 Jim Cromie 2025-11-18 747 const u32 *new_bits, const u32 old_bits, 0a63a411361860 Jim Cromie 2025-11-18 748 const char *query_modname) b9400852c0801a Jim Cromie 2022-09-04 749 { b9400852c0801a Jim Cromie 2022-09-04 750 const struct ddebug_class_map *map = dcp->map; b9400852c0801a Jim Cromie 2022-09-04 751 int matches = 0; 398a544c6030fa Jim Cromie 2026-03-08 752 int bi, pos = 0; ac471b8cc89b36 Jim Cromie 2026-08-08 753 bool alloc = true; ac471b8cc89b36 Jim Cromie 2026-08-08 754 char sbuf[1024]; 398a544c6030fa Jim Cromie 2026-03-08 755 char *buf; 398a544c6030fa Jim Cromie 2026-03-08 756 398a544c6030fa Jim Cromie 2026-03-08 757 if (*new_bits == old_bits) 398a544c6030fa Jim Cromie 2026-03-08 758 return 0; b9400852c0801a Jim Cromie 2022-09-04 759 1ec0f7ef1e9ab3 Jim Cromie 2025-11-18 760 v2pr_info("apply bitmap: 0x%x to: 0x%x for %s\n", *new_bits, 28d2dd8233aa44 Jim Cromie 2025-11-18 761 old_bits, query_modname ?: "'*'"); b9400852c0801a Jim Cromie 2022-09-04 762 ac471b8cc89b36 Jim Cromie 2026-08-08 763 buf = kmalloc(1024, GFP_KERNEL); ac471b8cc89b36 Jim Cromie 2026-08-08 764 if (!buf) { ac471b8cc89b36 Jim Cromie 2026-08-08 765 buf = sbuf; ac471b8cc89b36 Jim Cromie 2026-08-08 766 alloc = false; ac471b8cc89b36 Jim Cromie 2026-08-08 767 } 398a544c6030fa Jim Cromie 2026-03-08 768 1ec0f7ef1e9ab3 Jim Cromie 2025-11-18 769 for (bi = 0; bi < map->length && bi < 32; bi++) { 1ec0f7ef1e9ab3 Jim Cromie 2025-11-18 770 bool new_b = !!(*new_bits & BIT(bi)); 1ec0f7ef1e9ab3 Jim Cromie 2025-11-18 771 bool old_b = !!(old_bits & BIT(bi)); 1ec0f7ef1e9ab3 Jim Cromie 2025-11-18 772 1ec0f7ef1e9ab3 Jim Cromie 2025-11-18 773 if (new_b == old_b) b9400852c0801a Jim Cromie 2022-09-04 774 continue; b9400852c0801a Jim Cromie 2022-09-04 775 ac471b8cc89b36 Jim Cromie 2026-08-08 776 pos += scnprintf(buf + pos, (alloc ? 1024 : sizeof(sbuf)) - pos, "class %s %c%s%c", 398a544c6030fa Jim Cromie 2026-03-08 777 map->class_names[bi], 398a544c6030fa Jim Cromie 2026-03-08 778 new_b ? '+' : '-', dcp->flags, ';'); 398a544c6030fa Jim Cromie 2026-03-08 779 } b9400852c0801a Jim Cromie 2022-09-04 780 398a544c6030fa Jim Cromie 2026-03-08 781 if (pos) { 398a544c6030fa Jim Cromie 2026-03-08 782 buf[pos - 1] = '\0'; /* trim last ';' */ 398a544c6030fa Jim Cromie 2026-03-08 783 matches = ddebug_exec_queries(buf, query_modname); b9400852c0801a Jim Cromie 2022-09-04 784 } 398a544c6030fa Jim Cromie 2026-03-08 785 ac471b8cc89b36 Jim Cromie 2026-08-08 786 if (alloc) 398a544c6030fa Jim Cromie 2026-03-08 787 kfree(buf); 398a544c6030fa Jim Cromie 2026-03-08 788 1ec0f7ef1e9ab3 Jim Cromie 2025-11-18 789 v2pr_info("applied bitmap: 0x%x to: 0x%x for %s\n", *new_bits, 28d2dd8233aa44 Jim Cromie 2025-11-18 790 old_bits, query_modname ?: "'*'"); 0a63a411361860 Jim Cromie 2025-11-18 791 b9400852c0801a Jim Cromie 2022-09-04 792 return matches; b9400852c0801a Jim Cromie 2022-09-04 @793 } b9400852c0801a Jim Cromie 2022-09-04 794 :::::: The code at line 793 was first introduced by commit :::::: b9400852c0801aebee4fc8b62e6b7cc69c7fcbda dyndbg: add drm.debug style (drm/parameters/debug) bitmap support :::::: TO: Jim Cromie :::::: CC: Greg Kroah-Hartman -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki