Hi Lukas, kernel test robot noticed the following build errors:
[auto build test ERROR on drm-misc/drm-misc-next] [also build test ERROR on next-20251219] [cannot apply to linus/master v6.19-rc1] [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/Lukas-Zapolskas/drm-panthor-Add-performance-counter-uAPI/20251216-012117 base: https://gitlab.freedesktop.org/drm/misc/kernel.git drm-misc-next patch link: https://lore.kernel.org/r/20251215171453.2506348-6-lukas.zapolskas%40arm.com patch subject: [PATCH v6 5/7] drm/panthor: Implement the counter sampler and sample handling config: um-randconfig-001-20251217 (https://download.01.org/0day-ci/archive/20251220/[email protected]/config) compiler: clang version 22.0.0git (https://github.com/llvm/llvm-project 1335a05ab8bc8339ce24be3a9da89d8c3f4e0571) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251220/[email protected]/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 <[email protected]> | Closes: https://lore.kernel.org/oe-kbuild-all/[email protected]/ All errors (new ones prefixed by >>): In file included from drivers/gpu/drm/panthor/panthor_perf.c:5: In file included from include/drm/drm_file.h:39: In file included from include/drm/drm_prime.h:37: In file included from include/linux/scatterlist.h:9: In file included from arch/um/include/asm/io.h:24: include/asm-generic/io.h:1209:55: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 1209 | return (port > MMIO_UPPER_LIMIT) ? NULL : PCI_IOBASE + port; | ~~~~~~~~~~ ^ >> drivers/gpu/drm/panthor/panthor_perf.c:1045:19: error: incompatible pointer >> types passing '__u64 (*)[2]' (aka 'unsigned long long (*)[2]') to parameter >> of type 'u64 *' (aka 'unsigned long long *') [-Wincompatible-pointer-types] 1045 | bitmap_to_arr64(&blk->header.enable_mask, blk_em, PANTHOR_PERF_EM_BITS); | ^~~~~~~~~~~~~~~~~~~~~~~~ include/linux/bitmap.h:316:27: note: passing argument to parameter 'buf' here 316 | void bitmap_to_arr64(u64 *buf, const unsigned long *bitmap, unsigned int nbits); | ^ 1 warning and 1 error generated. vim +1045 drivers/gpu/drm/panthor/panthor_perf.c 991 992 /** 993 * session_populate_sample - Write out a new sample into a previously populated slot in the user 994 * ringbuffer and update both the header of the block and the PRFCNT_EN 995 * counter to contain only the selected subset of counters for that block. 996 * 997 * @ptdev: Panthor device 998 * @session: Perf session 999 * @session_sample: Pointer aligned to the start of the data section of the sample in the targeted 1000 * slot. 1001 * @sampler_sample: Pointer aligned to the start of the data section of the intermediate sampler 1002 * buffer. 1003 * 1004 * When a new sample slot is targeted, it must be cleared of the data already existing there, 1005 * enabling a direct copy from the intermediate buffer and then zeroing out any counters 1006 * that are not required for the current session. 1007 */ 1008 static void session_populate_sample(struct panthor_device *ptdev, 1009 struct panthor_perf_session *session, u8 *session_sample, 1010 u8 *sampler_sample) 1011 { 1012 const struct drm_panthor_perf_info *const perf_info = &ptdev->perf_info; 1013 const size_t block_size = get_annotated_block_size(perf_info->counters_per_block); 1014 const size_t sample_size = perf_info->sample_size; 1015 const size_t sample_header_size = perf_info->sample_header_size; 1016 const size_t data_size = sample_size - sample_header_size; 1017 const u32 counters = perf_info->counters_per_block; 1018 1019 session_populate_sample_header(session, 1020 (struct drm_panthor_perf_sample_header *)session_sample, 1021 ptdev->perf->sampler.set_config); 1022 1023 session_sample += sample_header_size; 1024 1025 memcpy(session_sample, sampler_sample + sample_header_size, data_size); 1026 1027 for (size_t i = 0; i < data_size; i += block_size) { 1028 DECLARE_BITMAP(em_diff, PANTHOR_PERF_EM_BITS); 1029 struct panthor_perf_counter_block *blk = (typeof(blk))(session_sample + i); 1030 enum drm_panthor_perf_block_type type = blk->header.block_type; 1031 unsigned long *blk_em = session->enabled_counters->mask[type]; 1032 1033 bitmap_from_arr64(em_diff, blk->header.enable_mask, PANTHOR_PERF_EM_BITS); 1034 1035 bitmap_andnot(em_diff, em_diff, blk_em, PANTHOR_PERF_EM_BITS); 1036 bitmap_clear(em_diff, 0, PANTHOR_HEADER_COUNTERS); 1037 1038 blk->counters[PANTHOR_CTR_PRFCNT_EN] = compress_enable_mask(counters, blk_em); 1039 1040 for (size_t ctr_idx = PANTHOR_HEADER_COUNTERS; ctr_idx < counters; ctr_idx++) { 1041 if (test_bit(ctr_idx, em_diff)) 1042 blk->counters[ctr_idx] = 0; 1043 } 1044 > 1045 bitmap_to_arr64(&blk->header.enable_mask, blk_em, > PANTHOR_PERF_EM_BITS); 1046 } 1047 } 1048 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
