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X-CSE-ConnectionGUID: jbbu+IZrRmuRMfKcYzoSDA== X-CSE-MsgGUID: KfSBMEwmR7eLhb+GkziawA== X-IronPort-AV: E=McAfee;i="6800,10657,11636"; a="71004203" X-IronPort-AV: E=Sophos;i="6.20,259,1758610800"; d="scan'208";a="71004203" Received: from orviesa006.jf.intel.com ([10.64.159.146]) by orvoesa106.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 08 Dec 2025 07:40:36 -0800 X-CSE-ConnectionGUID: f3nc2LZZT0anYMMczQamag== X-CSE-MsgGUID: 5mpz2td+TmaJEjtqdBD2iQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.20,259,1758610800"; d="scan'208";a="195023003" Received: from lkp-server01.sh.intel.com (HELO d335e3c6db51) ([10.239.97.150]) by orviesa006.jf.intel.com with ESMTP; 08 Dec 2025 07:40:35 -0800 Received: from kbuild by d335e3c6db51 with local (Exim 4.98.2) (envelope-from ) id 1vSdLk-000000000WT-0eIa; Mon, 08 Dec 2025 15:40:32 +0000 Date: Mon, 8 Dec 2025 23:39:41 +0800 From: kernel test robot To: Kent Overstreet Cc: llvm@lists.linux.dev, oe-kbuild-all@lists.linux.dev, Kent Overstreet Subject: [bcachefs:bcachefs-testing 459/1104] fs/bcachefs/alloc/backpointers.c:986:4: error: call to undeclared function '__WARN'; ISO C99 and later do not support implicit function declarations Message-ID: <202512082321.2kku0DpK-lkp@intel.com> Precedence: bulk X-Mailing-List: llvm@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Hi Kent, First bad commit (maybe != root cause): tree: https://evilpiepirate.org/git/bcachefs.git bcachefs-testing head: 2f94f2e080a961cd6401d4bea5c31ff03516d30e commit: 3fdc7b4035515f784e1d442bcca383f5c0267e53 [459/1104] bcachefs: move alloc files to subdir config: arm-randconfig-004-20251208 (https://download.01.org/0day-ci/archive/20251208/202512082321.2kku0DpK-lkp@intel.com/config) compiler: clang version 22.0.0git (https://github.com/llvm/llvm-project 000e46219ba1ee53fc42d35e00c314c2807e8b14) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251208/202512082321.2kku0DpK-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/202512082321.2kku0DpK-lkp@intel.com/ All errors (new ones prefixed by >>): >> fs/bcachefs/alloc/backpointers.c:986:4: error: call to undeclared function '__WARN'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration] 986 | __WARN(); | ^ 1 error generated. vim +/__WARN +986 fs/bcachefs/alloc/backpointers.c c738866e47ef2e4 fs/bcachefs/backpointers.c Kent Overstreet 2024-11-15 883 8317017fbfa0824 fs/bcachefs/backpointers.c Kent Overstreet 2025-07-04 884 static int check_bucket_backpointers_to_extents(struct btree_trans *, struct bch_dev *, struct bpos, 8317017fbfa0824 fs/bcachefs/backpointers.c Kent Overstreet 2025-07-04 885 struct bkey_buf *last_flushed); c738866e47ef2e4 fs/bcachefs/backpointers.c Kent Overstreet 2024-11-15 886 c738866e47ef2e4 fs/bcachefs/backpointers.c Kent Overstreet 2024-11-15 887 static int check_bucket_backpointer_mismatch(struct btree_trans *trans, struct bkey_s_c alloc_k, 39cea302f13a0a9 fs/bcachefs/backpointers.c Kent Overstreet 2025-05-09 888 bool *had_mismatch, 8317017fbfa0824 fs/bcachefs/backpointers.c Kent Overstreet 2025-07-04 889 struct bkey_buf *last_flushed, 8317017fbfa0824 fs/bcachefs/backpointers.c Kent Overstreet 2025-07-04 890 struct bpos *last_pos, 8317017fbfa0824 fs/bcachefs/backpointers.c Kent Overstreet 2025-07-04 891 unsigned *nr_iters) c738866e47ef2e4 fs/bcachefs/backpointers.c Kent Overstreet 2024-11-15 892 { c738866e47ef2e4 fs/bcachefs/backpointers.c Kent Overstreet 2024-11-15 893 struct bch_fs *c = trans->c; c738866e47ef2e4 fs/bcachefs/backpointers.c Kent Overstreet 2024-11-15 894 struct bch_alloc_v4 a_convert; c738866e47ef2e4 fs/bcachefs/backpointers.c Kent Overstreet 2024-11-15 895 const struct bch_alloc_v4 *a = bch2_alloc_to_v4(alloc_k, &a_convert); c738866e47ef2e4 fs/bcachefs/backpointers.c Kent Overstreet 2024-11-15 896 bool need_commit = false; c738866e47ef2e4 fs/bcachefs/backpointers.c Kent Overstreet 2024-11-15 897 8317017fbfa0824 fs/bcachefs/backpointers.c Kent Overstreet 2025-07-04 898 if (!bpos_eq(*last_pos, alloc_k.k->p)) 8317017fbfa0824 fs/bcachefs/backpointers.c Kent Overstreet 2025-07-04 899 *nr_iters = 0; 8317017fbfa0824 fs/bcachefs/backpointers.c Kent Overstreet 2025-07-04 900 8317017fbfa0824 fs/bcachefs/backpointers.c Kent Overstreet 2025-07-04 901 *last_pos = alloc_k.k->p; 8317017fbfa0824 fs/bcachefs/backpointers.c Kent Overstreet 2025-07-04 902 39cea302f13a0a9 fs/bcachefs/backpointers.c Kent Overstreet 2025-05-09 903 *had_mismatch = false; 39cea302f13a0a9 fs/bcachefs/backpointers.c Kent Overstreet 2025-05-09 904 c738866e47ef2e4 fs/bcachefs/backpointers.c Kent Overstreet 2024-11-15 905 if (a->data_type == BCH_DATA_sb || c738866e47ef2e4 fs/bcachefs/backpointers.c Kent Overstreet 2024-11-15 906 a->data_type == BCH_DATA_journal || c738866e47ef2e4 fs/bcachefs/backpointers.c Kent Overstreet 2024-11-15 907 a->data_type == BCH_DATA_parity) c738866e47ef2e4 fs/bcachefs/backpointers.c Kent Overstreet 2024-11-15 908 return 0; c738866e47ef2e4 fs/bcachefs/backpointers.c Kent Overstreet 2024-11-15 909 c738866e47ef2e4 fs/bcachefs/backpointers.c Kent Overstreet 2024-11-15 910 u32 sectors[ALLOC_SECTORS_NR]; c738866e47ef2e4 fs/bcachefs/backpointers.c Kent Overstreet 2024-11-15 911 memset(sectors, 0, sizeof(sectors)); c738866e47ef2e4 fs/bcachefs/backpointers.c Kent Overstreet 2024-11-15 912 6bf809fcd4197b5 fs/bcachefs/backpointers.c Kent Overstreet 2025-07-14 913 CLASS(bch2_dev_bucket_tryget_noerror, ca)(trans->c, alloc_k.k->p); c738866e47ef2e4 fs/bcachefs/backpointers.c Kent Overstreet 2024-11-15 914 if (!ca) c738866e47ef2e4 fs/bcachefs/backpointers.c Kent Overstreet 2024-11-15 915 return 0; c738866e47ef2e4 fs/bcachefs/backpointers.c Kent Overstreet 2024-11-15 916 c738866e47ef2e4 fs/bcachefs/backpointers.c Kent Overstreet 2024-11-15 917 struct bkey_s_c bp_k; c738866e47ef2e4 fs/bcachefs/backpointers.c Kent Overstreet 2024-11-15 918 int ret = 0; c738866e47ef2e4 fs/bcachefs/backpointers.c Kent Overstreet 2024-11-15 919 for_each_btree_key_max_norestart(trans, iter, BTREE_ID_backpointers, c738866e47ef2e4 fs/bcachefs/backpointers.c Kent Overstreet 2024-11-15 920 bucket_pos_to_bp_start(ca, alloc_k.k->p), c738866e47ef2e4 fs/bcachefs/backpointers.c Kent Overstreet 2024-11-15 921 bucket_pos_to_bp_end(ca, alloc_k.k->p), 0, bp_k, ret) { c738866e47ef2e4 fs/bcachefs/backpointers.c Kent Overstreet 2024-11-15 922 if (bp_k.k->type != KEY_TYPE_backpointer) c738866e47ef2e4 fs/bcachefs/backpointers.c Kent Overstreet 2024-11-15 923 continue; c738866e47ef2e4 fs/bcachefs/backpointers.c Kent Overstreet 2024-11-15 924 c738866e47ef2e4 fs/bcachefs/backpointers.c Kent Overstreet 2024-11-15 925 struct bkey_s_c_backpointer bp = bkey_s_c_to_backpointer(bp_k); c738866e47ef2e4 fs/bcachefs/backpointers.c Kent Overstreet 2024-11-15 926 2b67b72da5a0347 fs/bcachefs/backpointers.c Kent Overstreet 2025-08-08 927 if (c->sb.version_upgrade_complete < bcachefs_metadata_version_backpointer_bucket_gen && c738866e47ef2e4 fs/bcachefs/backpointers.c Kent Overstreet 2024-11-15 928 (bp.v->bucket_gen != a->gen || c738866e47ef2e4 fs/bcachefs/backpointers.c Kent Overstreet 2024-11-15 929 bp.v->pad)) { c738866e47ef2e4 fs/bcachefs/backpointers.c Kent Overstreet 2024-11-15 930 ret = bch2_backpointer_del(trans, bp_k.k->p); c738866e47ef2e4 fs/bcachefs/backpointers.c Kent Overstreet 2024-11-15 931 if (ret) f6ecd9850b5e0be fs/bcachefs/backpointers.c Kent Overstreet 2025-07-30 932 return ret; c738866e47ef2e4 fs/bcachefs/backpointers.c Kent Overstreet 2024-11-15 933 c738866e47ef2e4 fs/bcachefs/backpointers.c Kent Overstreet 2024-11-15 934 need_commit = true; c738866e47ef2e4 fs/bcachefs/backpointers.c Kent Overstreet 2024-11-15 935 continue; c738866e47ef2e4 fs/bcachefs/backpointers.c Kent Overstreet 2024-11-15 936 } c738866e47ef2e4 fs/bcachefs/backpointers.c Kent Overstreet 2024-11-15 937 c738866e47ef2e4 fs/bcachefs/backpointers.c Kent Overstreet 2024-11-15 938 if (bp.v->bucket_gen != a->gen) c738866e47ef2e4 fs/bcachefs/backpointers.c Kent Overstreet 2024-11-15 939 continue; c738866e47ef2e4 fs/bcachefs/backpointers.c Kent Overstreet 2024-11-15 940 962322475bb5ceb fs/bcachefs/backpointers.c Kent Overstreet 2025-03-19 941 int alloc_counter = data_type_to_alloc_counter(bp.v->data_type); 962322475bb5ceb fs/bcachefs/backpointers.c Kent Overstreet 2025-03-19 942 if (alloc_counter < 0) 962322475bb5ceb fs/bcachefs/backpointers.c Kent Overstreet 2025-03-19 943 continue; 962322475bb5ceb fs/bcachefs/backpointers.c Kent Overstreet 2025-03-19 944 962322475bb5ceb fs/bcachefs/backpointers.c Kent Overstreet 2025-03-19 945 sectors[alloc_counter] += bp.v->bucket_len; c738866e47ef2e4 fs/bcachefs/backpointers.c Kent Overstreet 2024-11-15 946 }; c738866e47ef2e4 fs/bcachefs/backpointers.c Kent Overstreet 2024-11-15 947 if (ret) 6bf809fcd4197b5 fs/bcachefs/backpointers.c Kent Overstreet 2025-07-14 948 return ret; c738866e47ef2e4 fs/bcachefs/backpointers.c Kent Overstreet 2024-11-15 949 c738866e47ef2e4 fs/bcachefs/backpointers.c Kent Overstreet 2024-11-15 950 if (need_commit) { c738866e47ef2e4 fs/bcachefs/backpointers.c Kent Overstreet 2024-11-15 951 ret = bch2_trans_commit(trans, NULL, NULL, BCH_TRANS_COMMIT_no_enospc); c738866e47ef2e4 fs/bcachefs/backpointers.c Kent Overstreet 2024-11-15 952 if (ret) 6bf809fcd4197b5 fs/bcachefs/backpointers.c Kent Overstreet 2025-07-14 953 return ret; c738866e47ef2e4 fs/bcachefs/backpointers.c Kent Overstreet 2024-11-15 954 } c738866e47ef2e4 fs/bcachefs/backpointers.c Kent Overstreet 2024-11-15 955 8317017fbfa0824 fs/bcachefs/backpointers.c Kent Overstreet 2025-07-04 956 if (sectors[ALLOC_dirty] > a->dirty_sectors || 8317017fbfa0824 fs/bcachefs/backpointers.c Kent Overstreet 2025-07-04 957 sectors[ALLOC_cached] > a->cached_sectors || 8317017fbfa0824 fs/bcachefs/backpointers.c Kent Overstreet 2025-07-04 958 sectors[ALLOC_stripe] > a->stripe_sectors) { 8317017fbfa0824 fs/bcachefs/backpointers.c Kent Overstreet 2025-07-04 959 if (*nr_iters) { 8317017fbfa0824 fs/bcachefs/backpointers.c Kent Overstreet 2025-07-04 960 CLASS(printbuf, buf)(); 8317017fbfa0824 fs/bcachefs/backpointers.c Kent Overstreet 2025-07-04 961 bch2_log_msg_start(c, &buf); 8317017fbfa0824 fs/bcachefs/backpointers.c Kent Overstreet 2025-07-04 962 8317017fbfa0824 fs/bcachefs/backpointers.c Kent Overstreet 2025-07-04 963 prt_printf(&buf, "backpointer sectors > bucket sectors, but found no bad backpointers\n" 8317017fbfa0824 fs/bcachefs/backpointers.c Kent Overstreet 2025-07-04 964 "bucket %llu:%llu data type %s, counters\n", 8317017fbfa0824 fs/bcachefs/backpointers.c Kent Overstreet 2025-07-04 965 alloc_k.k->p.inode, 8317017fbfa0824 fs/bcachefs/backpointers.c Kent Overstreet 2025-07-04 966 alloc_k.k->p.offset, 8317017fbfa0824 fs/bcachefs/backpointers.c Kent Overstreet 2025-07-04 967 __bch2_data_types[a->data_type]); 8317017fbfa0824 fs/bcachefs/backpointers.c Kent Overstreet 2025-07-04 968 if (sectors[ALLOC_dirty] > a->dirty_sectors) 8317017fbfa0824 fs/bcachefs/backpointers.c Kent Overstreet 2025-07-04 969 prt_printf(&buf, "dirty: %u > %u\n", 8317017fbfa0824 fs/bcachefs/backpointers.c Kent Overstreet 2025-07-04 970 sectors[ALLOC_dirty], a->dirty_sectors); 8317017fbfa0824 fs/bcachefs/backpointers.c Kent Overstreet 2025-07-04 971 if (sectors[ALLOC_cached] > a->cached_sectors) 8317017fbfa0824 fs/bcachefs/backpointers.c Kent Overstreet 2025-07-04 972 prt_printf(&buf, "cached: %u > %u\n", 8317017fbfa0824 fs/bcachefs/backpointers.c Kent Overstreet 2025-07-04 973 sectors[ALLOC_cached], a->cached_sectors); 8317017fbfa0824 fs/bcachefs/backpointers.c Kent Overstreet 2025-07-04 974 if (sectors[ALLOC_stripe] > a->stripe_sectors) 8317017fbfa0824 fs/bcachefs/backpointers.c Kent Overstreet 2025-07-04 975 prt_printf(&buf, "stripe: %u > %u\n", 8317017fbfa0824 fs/bcachefs/backpointers.c Kent Overstreet 2025-07-04 976 sectors[ALLOC_stripe], a->stripe_sectors); 8317017fbfa0824 fs/bcachefs/backpointers.c Kent Overstreet 2025-07-04 977 8317017fbfa0824 fs/bcachefs/backpointers.c Kent Overstreet 2025-07-04 978 for_each_btree_key_max_norestart(trans, iter, BTREE_ID_backpointers, 8317017fbfa0824 fs/bcachefs/backpointers.c Kent Overstreet 2025-07-04 979 bucket_pos_to_bp_start(ca, alloc_k.k->p), 8317017fbfa0824 fs/bcachefs/backpointers.c Kent Overstreet 2025-07-04 980 bucket_pos_to_bp_end(ca, alloc_k.k->p), 0, bp_k, ret) { 8317017fbfa0824 fs/bcachefs/backpointers.c Kent Overstreet 2025-07-04 981 bch2_bkey_val_to_text(&buf, c, bp_k); 8317017fbfa0824 fs/bcachefs/backpointers.c Kent Overstreet 2025-07-04 982 prt_newline(&buf); 8317017fbfa0824 fs/bcachefs/backpointers.c Kent Overstreet 2025-07-04 983 } 8317017fbfa0824 fs/bcachefs/backpointers.c Kent Overstreet 2025-07-04 984 8317017fbfa0824 fs/bcachefs/backpointers.c Kent Overstreet 2025-07-04 985 bch2_print_str(c, KERN_ERR, buf.buf); 8317017fbfa0824 fs/bcachefs/backpointers.c Kent Overstreet 2025-07-04 @986 __WARN(); 8317017fbfa0824 fs/bcachefs/backpointers.c Kent Overstreet 2025-07-04 987 return ret; 8317017fbfa0824 fs/bcachefs/backpointers.c Kent Overstreet 2025-07-04 988 } 8317017fbfa0824 fs/bcachefs/backpointers.c Kent Overstreet 2025-07-04 989 8317017fbfa0824 fs/bcachefs/backpointers.c Kent Overstreet 2025-07-04 990 *nr_iters += 1; 8317017fbfa0824 fs/bcachefs/backpointers.c Kent Overstreet 2025-07-04 991 8317017fbfa0824 fs/bcachefs/backpointers.c Kent Overstreet 2025-07-04 992 return check_bucket_backpointers_to_extents(trans, ca, alloc_k.k->p, last_flushed) ?: 8317017fbfa0824 fs/bcachefs/backpointers.c Kent Overstreet 2025-07-04 993 bch_err_throw(c, transaction_restart_nested); 8317017fbfa0824 fs/bcachefs/backpointers.c Kent Overstreet 2025-07-04 994 } 8317017fbfa0824 fs/bcachefs/backpointers.c Kent Overstreet 2025-07-04 995 c738866e47ef2e4 fs/bcachefs/backpointers.c Kent Overstreet 2024-11-15 996 if (sectors[ALLOC_dirty] != a->dirty_sectors || 15800f3d4b0134a fs/bcachefs/backpointers.c Kent Overstreet 2025-02-07 997 sectors[ALLOC_cached] != a->cached_sectors || c738866e47ef2e4 fs/bcachefs/backpointers.c Kent Overstreet 2024-11-15 998 sectors[ALLOC_stripe] != a->stripe_sectors) { 0fb08f59ed996c9 fs/bcachefs/backpointers.c Kent Overstreet 2025-08-08 999 /* 0fb08f59ed996c9 fs/bcachefs/backpointers.c Kent Overstreet 2025-08-08 1000 * Post 1.14 upgrade, we assume that backpointers are mostly 0fb08f59ed996c9 fs/bcachefs/backpointers.c Kent Overstreet 2025-08-08 1001 * correct and a sector count mismatch is probably due to a 0fb08f59ed996c9 fs/bcachefs/backpointers.c Kent Overstreet 2025-08-08 1002 * write buffer race 0fb08f59ed996c9 fs/bcachefs/backpointers.c Kent Overstreet 2025-08-08 1003 * 0fb08f59ed996c9 fs/bcachefs/backpointers.c Kent Overstreet 2025-08-08 1004 * Pre upgrade, we expect all the buckets to be wrong, a write 0fb08f59ed996c9 fs/bcachefs/backpointers.c Kent Overstreet 2025-08-08 1005 * buffer flush is pointless: 0fb08f59ed996c9 fs/bcachefs/backpointers.c Kent Overstreet 2025-08-08 1006 */ c738866e47ef2e4 fs/bcachefs/backpointers.c Kent Overstreet 2024-11-15 1007 if (c->sb.version_upgrade_complete >= bcachefs_metadata_version_backpointer_bucket_gen) { c738866e47ef2e4 fs/bcachefs/backpointers.c Kent Overstreet 2024-11-15 1008 ret = bch2_backpointers_maybe_flush(trans, alloc_k, last_flushed); c738866e47ef2e4 fs/bcachefs/backpointers.c Kent Overstreet 2024-11-15 1009 if (ret) 6bf809fcd4197b5 fs/bcachefs/backpointers.c Kent Overstreet 2025-07-14 1010 return ret; c738866e47ef2e4 fs/bcachefs/backpointers.c Kent Overstreet 2024-11-15 1011 } c738866e47ef2e4 fs/bcachefs/backpointers.c Kent Overstreet 2024-11-15 1012 13ffcbae86dadbf fs/bcachefs/backpointers.c Kent Overstreet 2025-05-09 1013 bool empty = (sectors[ALLOC_dirty] + 13ffcbae86dadbf fs/bcachefs/backpointers.c Kent Overstreet 2025-05-09 1014 sectors[ALLOC_stripe] + 13ffcbae86dadbf fs/bcachefs/backpointers.c Kent Overstreet 2025-05-09 1015 sectors[ALLOC_cached]) == 0; 13ffcbae86dadbf fs/bcachefs/backpointers.c Kent Overstreet 2025-05-09 1016 15f969326ee296f fs/bcachefs/backpointers.c Kent Overstreet 2025-05-17 1017 ret = bch2_bucket_bitmap_set(ca, &ca->bucket_backpointer_mismatch, 15f969326ee296f fs/bcachefs/backpointers.c Kent Overstreet 2025-05-17 1018 alloc_k.k->p.offset) ?: 15f969326ee296f fs/bcachefs/backpointers.c Kent Overstreet 2025-05-17 1019 (empty 15f969326ee296f fs/bcachefs/backpointers.c Kent Overstreet 2025-05-17 1020 ? bch2_bucket_bitmap_set(ca, &ca->bucket_backpointer_empty, 15f969326ee296f fs/bcachefs/backpointers.c Kent Overstreet 2025-05-17 1021 alloc_k.k->p.offset) 15f969326ee296f fs/bcachefs/backpointers.c Kent Overstreet 2025-05-17 1022 : 0); 39cea302f13a0a9 fs/bcachefs/backpointers.c Kent Overstreet 2025-05-09 1023 39cea302f13a0a9 fs/bcachefs/backpointers.c Kent Overstreet 2025-05-09 1024 *had_mismatch = true; c738866e47ef2e4 fs/bcachefs/backpointers.c Kent Overstreet 2024-11-15 1025 } 6bf809fcd4197b5 fs/bcachefs/backpointers.c Kent Overstreet 2025-07-14 1026 6bf809fcd4197b5 fs/bcachefs/backpointers.c Kent Overstreet 2025-07-14 1027 return 0; c738866e47ef2e4 fs/bcachefs/backpointers.c Kent Overstreet 2024-11-15 1028 } c738866e47ef2e4 fs/bcachefs/backpointers.c Kent Overstreet 2024-11-15 1029 :::::: The code at line 986 was first introduced by commit :::::: 8317017fbfa0824392813fddcf136bc764c16d66 bcachefs: Fix infinite loop in backpointers fsck on upgrade :::::: TO: Kent Overstreet :::::: CC: Kent Overstreet -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki