Re: [PATCH 3/5] staging: lustre: lustre: Remove unnecessary cast on void pointer

[kbuild test robot]

Hi simran,

[auto build test WARNING on staging/staging-testing]
[also build test WARNING on v4.10 next-20170303]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url:    https://github.com/0day-ci/linux/commits/simran-singhal/staging-nvec-Remove-unnecessary-cast-on-void-pointer/20170304-061120
config: x86_64-randconfig-x018-201709 (attached as .config)
compiler: gcc-6 (Debian 6.2.0-3) 6.2.0 20160901
reproduce:
        # save the attached .config to linux build tree
        make ARCH=x86_64 

All warnings (new ones prefixed by >>):

   In file included from drivers/staging/lustre/lustre/mgc/../include/../../include/linux/libcfs/libcfs.h:77:0,
                    from drivers/staging/lustre/lustre/mgc/../include/lprocfs_status.h:46,
                    from drivers/staging/lustre/lustre/mgc/mgc_request.c:42:
   drivers/staging/lustre/lustre/mgc/mgc_request.c: In function 'mgc_set_info_async':
>> drivers/staging/lustre/lustre/mgc/mgc_request.c:1036:11: warning: format '%s' expects argument of type 'char *', but argument 3 has type 'void *' [-Wformat=]
       CERROR("invalid sptlrpc flavor %s to MGS\n",
              ^
   drivers/staging/lustre/lustre/mgc/../include/../../include/linux/libcfs/libcfs_debug.h:222:30: note: in definition of macro '__CDEBUG'
      libcfs_debug_msg(&msgdata, format, ## __VA_ARGS__); \
                                 ^~~~~~
>> drivers/staging/lustre/lustre/mgc/../include/../../include/linux/libcfs/libcfs_debug.h:236:29: note: in expansion of macro 'CDEBUG_LIMIT'
    #define CERROR(format, ...) CDEBUG_LIMIT(D_ERROR, format, ## __VA_ARGS__)
                                ^~~~~~~~~~~~
>> drivers/staging/lustre/lustre/mgc/mgc_request.c:1036:4: note: in expansion of macro 'CERROR'
       CERROR("invalid sptlrpc flavor %s to MGS\n",
       ^~~~~~
>> drivers/staging/lustre/lustre/mgc/../include/../../include/linux/libcfs/libcfs_debug.h:244:7: warning: format '%s' expects argument of type 'char *', but argument 5 has type 'void *' [-Wformat=]
          "%x-%x: " format, errnum, LERRCHKSUM(errnum), ## __VA_ARGS__)
          ^
   drivers/staging/lustre/lustre/mgc/../include/../../include/linux/libcfs/libcfs_debug.h:222:30: note: in definition of macro '__CDEBUG'
      libcfs_debug_msg(&msgdata, format, ## __VA_ARGS__); \
                                 ^~~~~~
   drivers/staging/lustre/lustre/mgc/../include/../../include/linux/libcfs/libcfs_debug.h:243:49: note: in expansion of macro 'CDEBUG_LIMIT'
    #define LCONSOLE_ERROR_MSG(errnum, format, ...) CDEBUG_LIMIT(D_CONSOLE | D_ERROR, \
                                                    ^~~~~~~~~~~~
>> drivers/staging/lustre/lustre/mgc/../include/../../include/linux/libcfs/libcfs_debug.h:245:37: note: in expansion of macro 'LCONSOLE_ERROR_MSG'
    #define LCONSOLE_ERROR(format, ...) LCONSOLE_ERROR_MSG(0x00, format, ## __VA_ARGS__)
                                        ^~~~~~~~~~~~~~~~~~
>> drivers/staging/lustre/lustre/mgc/mgc_request.c:1052:4: note: in expansion of macro 'LCONSOLE_ERROR'
       LCONSOLE_ERROR("asking sptlrpc flavor %s to MGS but currently %s is in use\n",
       ^~~~~~~~~~~~~~

vim +1036 drivers/staging/lustre/lustre/mgc/mgc_request.c

d7e09d039 Peng Tao           2013-05-02  1030  			val = "null";
d7e09d039 Peng Tao           2013-05-02  1031  			vallen = 4;
d7e09d039 Peng Tao           2013-05-02  1032  		}
d7e09d039 Peng Tao           2013-05-02  1033  
d7e09d039 Peng Tao           2013-05-02  1034  		rc = sptlrpc_parse_flavor(val, &flvr);
d7e09d039 Peng Tao           2013-05-02  1035  		if (rc) {
d7e09d039 Peng Tao           2013-05-02 @1036  			CERROR("invalid sptlrpc flavor %s to MGS\n",
49b8751ff simran singhal     2017-03-03  1037  			       val);
0a3bdb007 Greg Kroah-Hartman 2013-08-03  1038  			return rc;
d7e09d039 Peng Tao           2013-05-02  1039  		}
d7e09d039 Peng Tao           2013-05-02  1040  
d7e09d039 Peng Tao           2013-05-02  1041  		/*
d7e09d039 Peng Tao           2013-05-02  1042  		 * caller already hold a mutex
d7e09d039 Peng Tao           2013-05-02  1043  		 */
d7e09d039 Peng Tao           2013-05-02  1044  		if (cli->cl_flvr_mgc.sf_rpc == SPTLRPC_FLVR_INVALID) {
d7e09d039 Peng Tao           2013-05-02  1045  			cli->cl_flvr_mgc = flvr;
d7e09d039 Peng Tao           2013-05-02  1046  		} else if (memcmp(&cli->cl_flvr_mgc, &flvr,
d7e09d039 Peng Tao           2013-05-02  1047  				  sizeof(flvr)) != 0) {
d7e09d039 Peng Tao           2013-05-02  1048  			char    str[20];
d7e09d039 Peng Tao           2013-05-02  1049  
d7e09d039 Peng Tao           2013-05-02  1050  			sptlrpc_flavor2name(&cli->cl_flvr_mgc,
d7e09d039 Peng Tao           2013-05-02  1051  					    str, sizeof(str));
2d00bd17a Joe Perches        2014-11-23 @1052  			LCONSOLE_ERROR("asking sptlrpc flavor %s to MGS but currently %s is in use\n",
49b8751ff simran singhal     2017-03-03  1053  				       val, str);
d7e09d039 Peng Tao           2013-05-02  1054  			rc = -EPERM;
d7e09d039 Peng Tao           2013-05-02  1055  		}

:::::: The code at line 1036 was first introduced by commit
:::::: d7e09d0397e84eefbabfd9cb353221f3c6448d83 staging: add Lustre file system client support

:::::: TO: Peng Tao <bergwolf@xxxxxxxxx>
:::::: CC: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

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