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X-CSE-ConnectionGUID: SCu647axQ3Sw2eXwMfHYUw== X-CSE-MsgGUID: qHzfNvBTRnqzoSFZ7hAovQ== X-IronPort-AV: E=McAfee;i="6600,9927,11066"; a="10887088" X-IronPort-AV: E=Sophos;i="6.08,145,1712646000"; d="scan'208";a="10887088" Received: from orviesa006.jf.intel.com ([10.64.159.146]) by orvoesa111.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 08 May 2024 06:42:36 -0700 X-CSE-ConnectionGUID: To5F5ZaWTMCOt39+pWTllQ== X-CSE-MsgGUID: ZiwXLHQLTA+VuibInGM3qw== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.08,145,1712646000"; d="scan'208";a="29294039" Received: from lkp-server01.sh.intel.com (HELO f8b243fe6e68) ([10.239.97.150]) by orviesa006.jf.intel.com with ESMTP; 08 May 2024 06:42:36 -0700 Received: from kbuild by f8b243fe6e68 with local (Exim 4.96) (envelope-from ) id 1s4hZ2-0003SE-3A; Wed, 08 May 2024 13:42:32 +0000 Date: Wed, 8 May 2024 21:42:17 +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 166/167] fs/bcachefs/bset.c:219:7: warning: explicitly assigning value of variable of type 'struct btree_node_iter_set *' to itself Message-ID: <202405082117.aZrGX86B-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 tree: https://evilpiepirate.org/git/bcachefs.git bcachefs-testing head: 820055ea04424d9c5d0d58322888ee46fefb55bc commit: 50c70bbc00a9a420984148aefde1b593d3679848 [166/167] bcachefs: for_each_bset() declares loop iter config: hexagon-allyesconfig (https://download.01.org/0day-ci/archive/20240508/202405082117.aZrGX86B-lkp@intel.com/config) compiler: clang version 19.0.0git (https://github.com/llvm/llvm-project 0ab4458df0688955620b72cc2c72a32dffad3615) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240508/202405082117.aZrGX86B-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/202405082117.aZrGX86B-lkp@intel.com/ All warnings (new ones prefixed by >>): In file included from fs/bcachefs/bset.c:9: In file included from fs/bcachefs/bcachefs.h:188: In file included from include/linux/bio.h:10: In file included from include/linux/blk_types.h:10: In file included from include/linux/bvec.h:10: In file included from include/linux/highmem.h:10: In file included from include/linux/mm.h:2210: include/linux/vmstat.h:522:36: warning: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Wenum-enum-conversion] 522 | return node_stat_name(NR_LRU_BASE + lru) + 3; // skip "nr_" | ~~~~~~~~~~~ ^ ~~~ In file included from fs/bcachefs/bset.c:9: In file included from fs/bcachefs/bcachefs.h:188: In file included from include/linux/bio.h:10: In file included from include/linux/blk_types.h:10: In file included from include/linux/bvec.h:10: In file included from include/linux/highmem.h:12: In file included from include/linux/hardirq.h:11: In file included from ./arch/hexagon/include/generated/asm/hardirq.h:1: In file included from include/asm-generic/hardirq.h:17: In file included from include/linux/irq.h:20: In file included from include/linux/io.h:13: In file included from arch/hexagon/include/asm/io.h:328: include/asm-generic/io.h:547:31: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 547 | val = __raw_readb(PCI_IOBASE + addr); | ~~~~~~~~~~ ^ include/asm-generic/io.h:560:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 560 | val = __le16_to_cpu((__le16 __force)__raw_readw(PCI_IOBASE + addr)); | ~~~~~~~~~~ ^ include/uapi/linux/byteorder/little_endian.h:37:51: note: expanded from macro '__le16_to_cpu' 37 | #define __le16_to_cpu(x) ((__force __u16)(__le16)(x)) | ^ In file included from fs/bcachefs/bset.c:9: In file included from fs/bcachefs/bcachefs.h:188: In file included from include/linux/bio.h:10: In file included from include/linux/blk_types.h:10: In file included from include/linux/bvec.h:10: In file included from include/linux/highmem.h:12: In file included from include/linux/hardirq.h:11: In file included from ./arch/hexagon/include/generated/asm/hardirq.h:1: In file included from include/asm-generic/hardirq.h:17: In file included from include/linux/irq.h:20: In file included from include/linux/io.h:13: In file included from arch/hexagon/include/asm/io.h:328: include/asm-generic/io.h:573:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 573 | val = __le32_to_cpu((__le32 __force)__raw_readl(PCI_IOBASE + addr)); | ~~~~~~~~~~ ^ include/uapi/linux/byteorder/little_endian.h:35:51: note: expanded from macro '__le32_to_cpu' 35 | #define __le32_to_cpu(x) ((__force __u32)(__le32)(x)) | ^ In file included from fs/bcachefs/bset.c:9: In file included from fs/bcachefs/bcachefs.h:188: In file included from include/linux/bio.h:10: In file included from include/linux/blk_types.h:10: In file included from include/linux/bvec.h:10: In file included from include/linux/highmem.h:12: In file included from include/linux/hardirq.h:11: In file included from ./arch/hexagon/include/generated/asm/hardirq.h:1: In file included from include/asm-generic/hardirq.h:17: In file included from include/linux/irq.h:20: In file included from include/linux/io.h:13: In file included from arch/hexagon/include/asm/io.h:328: include/asm-generic/io.h:584:33: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 584 | __raw_writeb(value, PCI_IOBASE + addr); | ~~~~~~~~~~ ^ include/asm-generic/io.h:594:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 594 | __raw_writew((u16 __force)cpu_to_le16(value), PCI_IOBASE + addr); | ~~~~~~~~~~ ^ include/asm-generic/io.h:604:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 604 | __raw_writel((u32 __force)cpu_to_le32(value), PCI_IOBASE + addr); | ~~~~~~~~~~ ^ >> fs/bcachefs/bset.c:219:7: warning: explicitly assigning value of variable of type 'struct btree_node_iter_set *' to itself [-Wself-assign] 219 | set = set; | ~~~ ^ ~~~ 8 warnings generated. vim +219 fs/bcachefs/bset.c 192 193 void bch2_btree_node_iter_verify(struct btree_node_iter *iter, 194 struct btree *b) 195 { 196 struct btree_node_iter_set *set, *s2; 197 struct bkey_packed *k, *p; 198 199 if (bch2_btree_node_iter_end(iter)) 200 return; 201 202 /* Verify no duplicates: */ 203 btree_node_iter_for_each(iter, set) { 204 BUG_ON(set->k > set->end); 205 btree_node_iter_for_each(iter, s2) 206 BUG_ON(set != s2 && set->end == s2->end); 207 } 208 209 /* Verify that set->end is correct: */ 210 btree_node_iter_for_each(iter, set) { 211 for_each_bset(b, t) 212 if (set->end == t->end_offset) { 213 BUG_ON(set->k < btree_bkey_first_offset(t) || 214 set->k >= t->end_offset); 215 goto found; 216 } 217 BUG(); 218 found: > 219 set = set; 220 } 221 222 /* Verify iterator is sorted: */ 223 btree_node_iter_for_each(iter, set) 224 BUG_ON(set != iter->data && 225 btree_node_iter_cmp(b, set[-1], set[0]) > 0); 226 227 k = bch2_btree_node_iter_peek_all(iter, b); 228 229 for_each_bset(b, t) { 230 if (iter->data[0].end == t->end_offset) 231 continue; 232 233 p = bch2_bkey_prev_all(b, t, 234 bch2_btree_node_iter_bset_pos(iter, b, t)); 235 236 BUG_ON(p && bkey_iter_cmp(b, k, p) < 0); 237 } 238 } 239 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki