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    SubjectRe: [PATCH v15 12/12] null_blk: add support for copy offload
    Hi Nitesh,

    kernel test robot noticed the following build warnings:

    [auto build test WARNING on c50216cfa084d5eb67dc10e646a3283da1595bb6]

    url: https://github.com/intel-lab-lkp/linux/commits/Nitesh-Shetty/block-Introduce-queue-limits-and-sysfs-for-copy-offload-support/20230907-015817
    base: c50216cfa084d5eb67dc10e646a3283da1595bb6
    patch link: https://lore.kernel.org/r/20230906163844.18754-13-nj.shetty%40samsung.com
    patch subject: [PATCH v15 12/12] null_blk: add support for copy offload
    config: arm-randconfig-001-20230907 (https://download.01.org/0day-ci/archive/20230907/202309070542.P9utuu9p-lkp@intel.com/config)
    compiler: clang version 14.0.6 (https://github.com/llvm/llvm-project.git f28c006a5895fc0e329fe15fead81e37457cb1d1)
    reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20230907/202309070542.P9utuu9p-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/202309070542.P9utuu9p-lkp@intel.com/

    All warnings (new ones prefixed by >>):

    In file included from drivers/block/null_blk/main.c:15:
    In file included from drivers/block/null_blk/./trace.h:104:
    In file included from include/trace/define_trace.h:102:
    In file included from include/trace/trace_events.h:237:
    >> drivers/block/null_blk/./trace.h:94:34: warning: format specifies type 'unsigned long' but the argument has type 'size_t' (aka 'unsigned int') [-Wformat]
    __entry->dst, __entry->src, __entry->len)
    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~
    include/trace/stages/stage3_trace_output.h:6:17: note: expanded from macro '__entry'
    #define __entry field
    ^
    include/trace/stages/stage3_trace_output.h:9:43: note: expanded from macro 'TP_printk'
    #define TP_printk(fmt, args...) fmt "\n", args
    ~~~ ^
    include/trace/trace_events.h:45:16: note: expanded from macro 'TRACE_EVENT'
    PARAMS(print)); \
    ~~~~~~~^~~~~~~
    include/linux/tracepoint.h:107:25: note: expanded from macro 'PARAMS'
    #define PARAMS(args...) args
    ^~~~
    include/trace/trace_events.h:203:27: note: expanded from macro 'DECLARE_EVENT_CLASS'
    trace_event_printf(iter, print); \
    ^~~~~
    1 warning generated.


    vim +94 drivers/block/null_blk/./trace.h

    72
    73 TRACE_EVENT(nullb_copy_op,
    74 TP_PROTO(struct request *req,
    75 sector_t dst, sector_t src, size_t len),
    76 TP_ARGS(req, dst, src, len),
    77 TP_STRUCT__entry(
    78 __array(char, disk, DISK_NAME_LEN)
    79 __field(enum req_op, op)
    80 __field(sector_t, dst)
    81 __field(sector_t, src)
    82 __field(size_t, len)
    83 ),
    84 TP_fast_assign(
    85 __entry->op = req_op(req);
    86 __assign_disk_name(__entry->disk, req->q->disk);
    87 __entry->dst = dst;
    88 __entry->src = src;
    89 __entry->len = len;
    90 ),
    91 TP_printk("%s req=%-15s: dst=%llu, src=%llu, len=%lu",
    92 __print_disk_name(__entry->disk),
    93 blk_op_str(__entry->op),
    > 94 __entry->dst, __entry->src, __entry->len)
    95 );
    96 #endif /* _TRACE_NULLB_H */
    97

    --
    0-DAY CI Kernel Test Service
    https://github.com/intel/lkp-tests/wiki

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