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Date: Fri, 1 Mar 2024 08:35:47 +0800
From: kernel test robot <lkp@intel.com>
To: Kent Overstreet <kent.overstreet@linux.dev>
Cc: llvm@lists.linux.dev, oe-kbuild-all@lists.linux.dev,
	linux-kernel@vger.kernel.org
Subject: fs/bcachefs/quota.c:130:15: warning: arithmetic between different
 enumeration types ('enum quota_types' and 'enum quota_counters')
Message-ID: <202403010825.qnve2eAU-lkp@intel.com>
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tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   87adedeba51a822533649b143232418b9e26d08b
commit: 1c6fdbd8f2465ddfb73a01ec620cbf3d14044e1a bcachefs: Initial commit
date:   4 months ago
config: hexagon-randconfig-001-20240229 (https://download.01.org/0day-ci/archive/20240301/202403010825.qnve2eAU-lkp@intel.com/config)
compiler: clang version 19.0.0git (https://github.com/llvm/llvm-project edd4aee4dd9b5b98b2576a6f783e4086173d902a)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240301/202403010825.qnve2eAU-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 <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202403010825.qnve2eAU-lkp@intel.com/

All warnings (new ones prefixed by >>):

   In file included from fs/bcachefs/quota.c:2:
   In file included from fs/bcachefs/bcachefs.h:184:
   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:2168:
   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/quota.c:2:
   In file included from fs/bcachefs/bcachefs.h:184:
   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:337:
   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/quota.c:2:
   In file included from fs/bcachefs/bcachefs.h:184:
   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:337:
   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/quota.c:2:
   In file included from fs/bcachefs/bcachefs.h:184:
   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:337:
   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/quota.c:25:24: warning: variable 'dq' set but not used [-Wunused-but-set-variable]
      25 |         struct bkey_s_c_quota dq;
         |                               ^
>> fs/bcachefs/quota.c:130:15: warning: arithmetic between different enumeration types ('enum quota_types' and 'enum quota_counters') [-Wenum-enum-conversion]
     130 |         }               m[QTYP_NR * Q_COUNTERS];
         |                           ~~~~~~~ ^ ~~~~~~~~~~
   fs/bcachefs/quota.c:612:28: warning: variable 'q' set but not used [-Wunused-but-set-variable]
     612 |         struct bch_memquota_type *q;
         |                                   ^
   fs/bcachefs/quota.c:765:8: error: call to undeclared function 'COUNT_ARGS'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
     765 |         ret = bch2_btree_insert_at(c, NULL, NULL, NULL, 0,
         |               ^
   fs/bcachefs/btree_update.h:72:10: note: expanded from macro 'bch2_btree_insert_at'
      72 |                 .nr             = COUNT_ARGS(__VA_ARGS__),              \
         |                                   ^
   10 warnings and 1 error generated.


vim +130 fs/bcachefs/quota.c

   124	
   125	struct quota_msgs {
   126		u8		nr;
   127		struct {
   128			u8	qtype;
   129			u8	msg;
 > 130		}		m[QTYP_NR * Q_COUNTERS];
   131	};
   132	

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