tree: https://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm.git for-next head: 68040817337fda98196974401391f2d1b9f87e49 commit: def6a7a9a7f0e7e3886fb77cf45c4a48e7e71c36 [7/8] dm space maps: improve performance with inc/dec on ranges of blocks config: i386-allyesconfig (attached as .config) compiler: gcc-9 (Debian 9.3.0-22) 9.3.0 reproduce (this is a W=1 build): # https://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm.gi... git remote add dm https://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm.git git fetch --no-tags dm for-next git checkout def6a7a9a7f0e7e3886fb77cf45c4a48e7e71c36 # save the attached .config to linux build tree make W=1 ARCH=i386 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All warnings (new ones prefixed by >>): In file included from include/linux/byteorder/little_endian.h:5, from arch/x86/include/uapi/asm/byteorder.h:5, from include/asm-generic/bitops/le.h:7, from arch/x86/include/asm/bitops.h:395, from include/linux/bitops.h:32, from include/linux/kernel.h:12, from arch/x86/include/asm/percpu.h:27, from arch/x86/include/asm/current.h:6, from include/linux/sched.h:12, from include/linux/blkdev.h:5, from drivers/md/persistent-data/dm-block-manager.h:11, from drivers/md/persistent-data/dm-btree.h:9, from drivers/md/persistent-data/dm-array.h:9, from drivers/md/persistent-data/dm-array.c:7: drivers/md/persistent-data/dm-array.c: In function 'block_inc': 32 | #define __le64_to_cpu(x) ((__force __u64)(__le64)(x)) | ^ include/linux/byteorder/generic.h:87:21: note: in expansion of macro '__le64_to_cpu' 87 | #define le64_to_cpu __le64_to_cpu | ^~~~~~~~~~~~~ drivers/md/persistent-data/dm-array.c:578:34: note: in expansion of macro 'le64_to_cpu' 578 | dm_tm_inc(info->btree_info.tm, le64_to_cpu(block_le)); | ^~~~~~~~~~~ vim +32 include/uapi/linux/byteorder/little_endian.h 5921e6f8809b161 David Howells 2012-10-13 14 5921e6f8809b161 David Howells 2012-10-13 15 #define __constant_htonl(x) ((__force __be32)___constant_swab32((x))) 5921e6f8809b161 David Howells 2012-10-13 16 #define __constant_ntohl(x) ___constant_swab32((__force __be32)(x)) 5921e6f8809b161 David Howells 2012-10-13 17 #define __constant_htons(x) ((__force __be16)___constant_swab16((x))) 5921e6f8809b161 David Howells 2012-10-13 18 #define __constant_ntohs(x) ___constant_swab16((__force __be16)(x)) 5921e6f8809b161 David Howells 2012-10-13 19 #define __constant_cpu_to_le64(x) ((__force __le64)(__u64)(x)) 5921e6f8809b161 David Howells 2012-10-13 20 #define __constant_le64_to_cpu(x) ((__force __u64)(__le64)(x)) 5921e6f8809b161 David Howells 2012-10-13 21 #define __constant_cpu_to_le32(x) ((__force __le32)(__u32)(x)) 5921e6f8809b161 David Howells 2012-10-13 22 #define __constant_le32_to_cpu(x) ((__force __u32)(__le32)(x)) 5921e6f8809b161 David Howells 2012-10-13 23 #define __constant_cpu_to_le16(x) ((__force __le16)(__u16)(x)) 5921e6f8809b161 David Howells 2012-10-13 24 #define __constant_le16_to_cpu(x) ((__force __u16)(__le16)(x)) 5921e6f8809b161 David Howells 2012-10-13 25 #define __constant_cpu_to_be64(x) ((__force __be64)___constant_swab64((x))) 5921e6f8809b161 David Howells 2012-10-13 26 #define __constant_be64_to_cpu(x) ___constant_swab64((__force __u64)(__be64)(x)) 5921e6f8809b161 David Howells 2012-10-13 27 #define __constant_cpu_to_be32(x) ((__force __be32)___constant_swab32((x))) 5921e6f8809b161 David Howells 2012-10-13 28 #define __constant_be32_to_cpu(x) ___constant_swab32((__force __u32)(__be32)(x)) 5921e6f8809b161 David Howells 2012-10-13 29 #define __constant_cpu_to_be16(x) ((__force __be16)___constant_swab16((x))) 5921e6f8809b161 David Howells 2012-10-13 30 #define __constant_be16_to_cpu(x) ___constant_swab16((__force __u16)(__be16)(x)) 5921e6f8809b161 David Howells 2012-10-13 31 #define __cpu_to_le64(x) ((__force __le64)(__u64)(x)) 5921e6f8809b161 David Howells 2012-10-13 @32 #define __le64_to_cpu(x) ((__force __u64)(__le64)(x)) 5921e6f8809b161 David Howells 2012-10-13 33 #define __cpu_to_le32(x) ((__force __le32)(__u32)(x)) 5921e6f8809b161 David Howells 2012-10-13 34 #define __le32_to_cpu(x) ((__force __u32)(__le32)(x)) 5921e6f8809b161 David Howells 2012-10-13 35 #define __cpu_to_le16(x) ((__force __le16)(__u16)(x)) 5921e6f8809b161 David Howells 2012-10-13 36 #define __le16_to_cpu(x) ((__force __u16)(__le16)(x)) 5921e6f8809b161 David Howells 2012-10-13 37 #define __cpu_to_be64(x) ((__force __be64)__swab64((x))) 5921e6f8809b161 David Howells 2012-10-13 38 #define __be64_to_cpu(x) __swab64((__force __u64)(__be64)(x)) 5921e6f8809b161 David Howells 2012-10-13 39 #define __cpu_to_be32(x) ((__force __be32)__swab32((x))) 5921e6f8809b161 David Howells 2012-10-13 40 #define __be32_to_cpu(x) __swab32((__force __u32)(__be32)(x)) 5921e6f8809b161 David Howells 2012-10-13 41 #define __cpu_to_be16(x) ((__force __be16)__swab16((x))) 5921e6f8809b161 David Howells 2012-10-13 42 #define __be16_to_cpu(x) __swab16((__force __u16)(__be16)(x)) 5921e6f8809b161 David Howells 2012-10-13 43 :::::: The code at line 32 was first introduced by commit :::::: 5921e6f8809b1616932ca4afd40fe449faa8fd88 UAPI: (Scripted) Disintegrate include/linux/byteorder :::::: TO: David Howells <dhowells(a)redhat.com&gt; :::::: CC: David Howells <dhowells(a)redhat.com&gt; --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org