Hi Luo,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on mkp-scsi/for-next]
[also build test ERROR on scsi/for-next linus/master v5.10-rc3 next-20201113]
[cannot apply to hnaz-linux-mm/master]
[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/Luo-Jiaxing/Introduce-a-new-helper-macro-DEFINE_SHOW_STORE_ATTRIBUTE-at-seq_file-c/20201112-150927
base:   https://git.kernel.org/pub/scm/linux/kernel/git/mkp/scsi.git for-next
config: x86_64-rhel (attached as .config)
compiler: gcc-9 (Debian 9.3.0-15) 9.3.0
reproduce (this is a W=1 build):
        # https://github.com/0day-ci/linux/commit/cdd2edc795fcbb643f104476d99a52d0e95bb229
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Luo-Jiaxing/Introduce-a-new-helper-macro-DEFINE_SHOW_STORE_ATTRIBUTE-at-seq_file-c/20201112-150927
        git checkout cdd2edc795fcbb643f104476d99a52d0e95bb229
        # save the attached .config to linux build tree
        make W=1 ARCH=x86_64 

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

All errors (new ones prefixed by >>):

   drivers/scsi/qla2xxx/qla_dfs.c: In function 'qla2x00_dfs_setup':
>> drivers/scsi/qla2xxx/qla_dfs.c:558:32: error: 'qla_dfs_naqp_ops' undeclared (first use in this function); did you mean 'qla_dfs_naqp_fops'?
     558 |       0400, ha->dfs_dir, vha, &qla_dfs_naqp_ops);
         |                                ^~~~~~~~~~~~~~~~
         |                                qla_dfs_naqp_fops
   drivers/scsi/qla2xxx/qla_dfs.c:558:32: note: each undeclared identifier is reported only once for each function it appears in
   In file included from include/scsi/scsi_host.h:10,
                    from drivers/scsi/qla2xxx/qla_def.h:30,
                    from drivers/scsi/qla2xxx/qla_dfs.c:6:
   At top level:
   drivers/scsi/qla2xxx/qla_dfs.c:512:29: warning: 'qla_dfs_naqp_fops' defined but not used [-Wunused-const-variable=]
     512 | DEFINE_SHOW_STORE_ATTRIBUTE(qla_dfs_naqp);
         |                             ^~~~~~~~~~~~
   include/linux/seq_file.h:200:37: note: in definition of macro 'DEFINE_SHOW_STORE_ATTRIBUTE'
     200 | static const struct file_operations __name ## _fops = {   \
         |                                     ^~~~~~

vim +558 drivers/scsi/qla2xxx/qla_dfs.c

   513	
   514	int
   515	qla2x00_dfs_setup(scsi_qla_host_t *vha)
   516	{
   517		struct qla_hw_data *ha = vha->hw;
   518	
   519		if (!IS_QLA25XX(ha) && !IS_QLA81XX(ha) && !IS_QLA83XX(ha) &&
   520		    !IS_QLA27XX(ha) && !IS_QLA28XX(ha))
   521			goto out;
   522		if (!ha->fce)
   523			goto out;
   524	
   525		if (qla2x00_dfs_root)
   526			goto create_dir;
   527	
   528		atomic_set(&qla2x00_dfs_root_count, 0);
   529		qla2x00_dfs_root = debugfs_create_dir(QLA2XXX_DRIVER_NAME, NULL);
   530	
   531	create_dir:
   532		if (ha->dfs_dir)
   533			goto create_nodes;
   534	
   535		mutex_init(&ha->fce_mutex);
   536		ha->dfs_dir = debugfs_create_dir(vha->host_str, qla2x00_dfs_root);
   537	
   538		atomic_inc(&qla2x00_dfs_root_count);
   539	
   540	create_nodes:
   541		ha->dfs_fw_resource_cnt = debugfs_create_file("fw_resource_count",
   542		    S_IRUSR, ha->dfs_dir, vha, &qla_dfs_fw_resource_cnt_fops);
   543	
   544		ha->dfs_tgt_counters = debugfs_create_file("tgt_counters", S_IRUSR,
   545		    ha->dfs_dir, vha, &qla_dfs_tgt_counters_fops);
   546	
   547		ha->tgt.dfs_tgt_port_database = debugfs_create_file("tgt_port_database",
   548		    S_IRUSR,  ha->dfs_dir, vha, &qla2x00_dfs_tgt_port_database_fops);
   549	
   550		ha->dfs_fce = debugfs_create_file("fce", S_IRUSR, ha->dfs_dir, vha,
   551		    &dfs_fce_ops);
   552	
   553		ha->tgt.dfs_tgt_sess = debugfs_create_file("tgt_sess",
   554			S_IRUSR, ha->dfs_dir, vha, &qla2x00_dfs_tgt_sess_fops);
   555	
   556		if (IS_QLA27XX(ha) || IS_QLA83XX(ha) || IS_QLA28XX(ha)) {
   557			ha->tgt.dfs_naqp = debugfs_create_file("naqp",
 > 558			    0400, ha->dfs_dir, vha, &qla_dfs_naqp_ops);
   559			if (!ha->tgt.dfs_naqp) {
   560				ql_log(ql_log_warn, vha, 0xd011,
   561				       "Unable to create debugFS naqp node.\n");
   562				goto out;
   563			}
   564		}
   565		vha->dfs_rport_root = debugfs_create_dir("rports", ha->dfs_dir);
   566		if (!vha->dfs_rport_root) {
   567			ql_log(ql_log_warn, vha, 0xd012,
   568			       "Unable to create debugFS rports node.\n");
   569			goto out;
   570		}
   571	out:
   572		return 0;
   573	}
   574	

---
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