Re: [PATCH v2 07/10] nvmet: add copy command support for bdev and file ns

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Hi Nitesh,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on axboe-block/for-next]
[also build test WARNING on linus/master v5.17-rc3 next-20220207]
[cannot apply to device-mapper-dm/for-next]
[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]

url:    https://github.com/0day-ci/linux/commits/Nitesh-Shetty/block-make-bio_map_kern-non-static/20220207-231407
base:   https://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux-block.git for-next
config: microblaze-buildonly-randconfig-r003-20220207 (https://download.01.org/0day-ci/archive/20220208/202202080206.J6kilCeY-lkp@xxxxxxxxx/config)
compiler: microblaze-linux-gcc (GCC) 11.2.0
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # https://github.com/0day-ci/linux/commit/6bb6ea64499e1ac27975e79bb2eee89f07861893
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Nitesh-Shetty/block-make-bio_map_kern-non-static/20220207-231407
        git checkout 6bb6ea64499e1ac27975e79bb2eee89f07861893
        # save the config file to linux build tree
        mkdir build_dir
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=microblaze SHELL=/bin/bash drivers/nvme/target/

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@xxxxxxxxx>

All warnings (new ones prefixed by >>):

   In file included from include/linux/byteorder/big_endian.h:5,
                    from arch/microblaze/include/uapi/asm/byteorder.h:8,
                    from include/asm-generic/bitops/le.h:6,
                    from include/asm-generic/bitops.h:35,
                    from ./arch/microblaze/include/generated/asm/bitops.h:1,
                    from include/linux/bitops.h:33,
                    from include/linux/log2.h:12,
                    from include/asm-generic/div64.h:55,
                    from ./arch/microblaze/include/generated/asm/div64.h:1,
                    from include/linux/math.h:5,
                    from include/linux/math64.h:6,
                    from include/linux/time.h:6,
                    from include/linux/stat.h:19,
                    from include/linux/module.h:13,
                    from drivers/nvme/target/admin-cmd.c:7:
   drivers/nvme/target/admin-cmd.c: In function 'nvmet_execute_identify_ns':
>> include/uapi/linux/byteorder/big_endian.h:34:26: warning: conversion from 'unsigned int' to '__le16' {aka 'short unsigned int'} changes value from '524288' to '0' [-Woverflow]
      34 | #define __cpu_to_le32(x) ((__force __le32)__swab32((x)))
         |                          ^
   include/linux/byteorder/generic.h:88:21: note: in expansion of macro '__cpu_to_le32'
      88 | #define cpu_to_le32 __cpu_to_le32
         |                     ^~~~~~~~~~~~~
   drivers/nvme/target/admin-cmd.c:534:29: note: in expansion of macro 'cpu_to_le32'
     534 |                 id->mssrl = cpu_to_le32(BIO_MAX_VECS << (PAGE_SHIFT - SECTOR_SHIFT));
         |                             ^~~~~~~~~~~


vim +34 include/uapi/linux/byteorder/big_endian.h

5921e6f8809b161 David Howells 2012-10-13  15  
5921e6f8809b161 David Howells 2012-10-13  16  #define __constant_htonl(x) ((__force __be32)(__u32)(x))
5921e6f8809b161 David Howells 2012-10-13  17  #define __constant_ntohl(x) ((__force __u32)(__be32)(x))
5921e6f8809b161 David Howells 2012-10-13  18  #define __constant_htons(x) ((__force __be16)(__u16)(x))
5921e6f8809b161 David Howells 2012-10-13  19  #define __constant_ntohs(x) ((__force __u16)(__be16)(x))
5921e6f8809b161 David Howells 2012-10-13  20  #define __constant_cpu_to_le64(x) ((__force __le64)___constant_swab64((x)))
5921e6f8809b161 David Howells 2012-10-13  21  #define __constant_le64_to_cpu(x) ___constant_swab64((__force __u64)(__le64)(x))
5921e6f8809b161 David Howells 2012-10-13  22  #define __constant_cpu_to_le32(x) ((__force __le32)___constant_swab32((x)))
5921e6f8809b161 David Howells 2012-10-13  23  #define __constant_le32_to_cpu(x) ___constant_swab32((__force __u32)(__le32)(x))
5921e6f8809b161 David Howells 2012-10-13  24  #define __constant_cpu_to_le16(x) ((__force __le16)___constant_swab16((x)))
5921e6f8809b161 David Howells 2012-10-13  25  #define __constant_le16_to_cpu(x) ___constant_swab16((__force __u16)(__le16)(x))
5921e6f8809b161 David Howells 2012-10-13  26  #define __constant_cpu_to_be64(x) ((__force __be64)(__u64)(x))
5921e6f8809b161 David Howells 2012-10-13  27  #define __constant_be64_to_cpu(x) ((__force __u64)(__be64)(x))
5921e6f8809b161 David Howells 2012-10-13  28  #define __constant_cpu_to_be32(x) ((__force __be32)(__u32)(x))
5921e6f8809b161 David Howells 2012-10-13  29  #define __constant_be32_to_cpu(x) ((__force __u32)(__be32)(x))
5921e6f8809b161 David Howells 2012-10-13  30  #define __constant_cpu_to_be16(x) ((__force __be16)(__u16)(x))
5921e6f8809b161 David Howells 2012-10-13  31  #define __constant_be16_to_cpu(x) ((__force __u16)(__be16)(x))
5921e6f8809b161 David Howells 2012-10-13  32  #define __cpu_to_le64(x) ((__force __le64)__swab64((x)))
5921e6f8809b161 David Howells 2012-10-13  33  #define __le64_to_cpu(x) __swab64((__force __u64)(__le64)(x))
5921e6f8809b161 David Howells 2012-10-13 @34  #define __cpu_to_le32(x) ((__force __le32)__swab32((x)))
5921e6f8809b161 David Howells 2012-10-13  35  #define __le32_to_cpu(x) __swab32((__force __u32)(__le32)(x))
5921e6f8809b161 David Howells 2012-10-13  36  #define __cpu_to_le16(x) ((__force __le16)__swab16((x)))
5921e6f8809b161 David Howells 2012-10-13  37  #define __le16_to_cpu(x) __swab16((__force __u16)(__le16)(x))
5921e6f8809b161 David Howells 2012-10-13  38  #define __cpu_to_be64(x) ((__force __be64)(__u64)(x))
5921e6f8809b161 David Howells 2012-10-13  39  #define __be64_to_cpu(x) ((__force __u64)(__be64)(x))
5921e6f8809b161 David Howells 2012-10-13  40  #define __cpu_to_be32(x) ((__force __be32)(__u32)(x))
5921e6f8809b161 David Howells 2012-10-13  41  #define __be32_to_cpu(x) ((__force __u32)(__be32)(x))
5921e6f8809b161 David Howells 2012-10-13  42  #define __cpu_to_be16(x) ((__force __be16)(__u16)(x))
5921e6f8809b161 David Howells 2012-10-13  43  #define __be16_to_cpu(x) ((__force __u16)(__be16)(x))
5921e6f8809b161 David Howells 2012-10-13  44  

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