Hi Viswas, [auto build test WARNING on mkp-scsi/for-next] [also build test WARNING on v4.14-rc1 next-20170920] [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/Viswas-G/pm80xx-updates/20170920-202506 base: https://git.kernel.org/pub/scm/linux/kernel/git/mkp/scsi.git for-next config: x86_64-randconfig-a0-09202136 (attached as .config) compiler: gcc-4.4 (Debian 4.4.7-8) 4.4.7 reproduce: # save the attached .config to linux build tree make ARCH=x86_64 All warnings (new ones prefixed by >>): drivers/scsi/pm8001/pm8001_sas.c: In function 'pm8001_abort_task': drivers/scsi/pm8001/pm8001_sas.c:1206: warning: label 'out' defined but not used >> drivers/scsi/pm8001/pm8001_sas.c:1166: warning: unused variable 'ccb' vim +/ccb +1166 drivers/scsi/pm8001/pm8001_sas.c dbf9bfe61 jack wang 2009-10-14 1157 dbf9bfe61 jack wang 2009-10-14 1158 /* mandatory SAM-3, still need free task/ccb info, abord the specified task */ dbf9bfe61 jack wang 2009-10-14 1159 int pm8001_abort_task(struct sas_task *task) dbf9bfe61 jack wang 2009-10-14 1160 { dbf9bfe61 jack wang 2009-10-14 1161 unsigned long flags; a9d840710 Viswas G 2017-09-19 1162 u32 tag; dbf9bfe61 jack wang 2009-10-14 1163 u32 device_id; dbf9bfe61 jack wang 2009-10-14 1164 struct domain_device *dev ; a9d840710 Viswas G 2017-09-19 1165 struct pm8001_hba_info *pm8001_ha; dbf9bfe61 jack wang 2009-10-14 @1166 struct pm8001_ccb_info *ccb; dbf9bfe61 jack wang 2009-10-14 1167 struct scsi_lun lun; dbf9bfe61 jack wang 2009-10-14 1168 struct pm8001_device *pm8001_dev; dbf9bfe61 jack wang 2009-10-14 1169 struct pm8001_tmf_task tmf_task; dbf9bfe61 jack wang 2009-10-14 1170 int rc = TMF_RESP_FUNC_FAILED; dbf9bfe61 jack wang 2009-10-14 1171 if (unlikely(!task || !task->lldd_task || !task->dev)) a9d840710 Viswas G 2017-09-19 1172 return TMF_RESP_FUNC_FAILED; a9d840710 Viswas G 2017-09-19 1173 dev = task->dev; a9d840710 Viswas G 2017-09-19 1174 pm8001_dev = dev->lldd_dev; a9d840710 Viswas G 2017-09-19 1175 pm8001_ha = pm8001_find_ha_by_dev(dev); a9d840710 Viswas G 2017-09-19 1176 device_id = pm8001_dev->device_id; a9d840710 Viswas G 2017-09-19 1177 rc = pm8001_find_tag(task, &tag); a9d840710 Viswas G 2017-09-19 1178 if (rc == 0) { a9d840710 Viswas G 2017-09-19 1179 pm8001_printk("no tag for task:%p\n", task); a9d840710 Viswas G 2017-09-19 1180 return TMF_RESP_FUNC_FAILED; a9d840710 Viswas G 2017-09-19 1181 } dbf9bfe61 jack wang 2009-10-14 1182 spin_lock_irqsave(&task->task_state_lock, flags); dbf9bfe61 jack wang 2009-10-14 1183 if (task->task_state_flags & SAS_TASK_STATE_DONE) { dbf9bfe61 jack wang 2009-10-14 1184 spin_unlock_irqrestore(&task->task_state_lock, flags); a9d840710 Viswas G 2017-09-19 1185 return TMF_RESP_FUNC_COMPLETE; dbf9bfe61 jack wang 2009-10-14 1186 } dbf9bfe61 jack wang 2009-10-14 1187 spin_unlock_irqrestore(&task->task_state_lock, flags); dbf9bfe61 jack wang 2009-10-14 1188 if (task->task_proto & SAS_PROTOCOL_SSP) { dbf9bfe61 jack wang 2009-10-14 1189 struct scsi_cmnd *cmnd = task->uldd_task; dbf9bfe61 jack wang 2009-10-14 1190 int_to_scsilun(cmnd->device->lun, &lun); dbf9bfe61 jack wang 2009-10-14 1191 tmf_task.tmf = TMF_ABORT_TASK; dbf9bfe61 jack wang 2009-10-14 1192 tmf_task.tag_of_task_to_be_managed = tag; dbf9bfe61 jack wang 2009-10-14 1193 rc = pm8001_issue_ssp_tmf(dev, lun.scsi_lun, &tmf_task); 97ee20886 jack_wang 2009-11-05 1194 pm8001_exec_internal_task_abort(pm8001_ha, pm8001_dev, dbf9bfe61 jack wang 2009-10-14 1195 pm8001_dev->sas_device, 0, tag); dbf9bfe61 jack wang 2009-10-14 1196 } else if (task->task_proto & SAS_PROTOCOL_SATA || dbf9bfe61 jack wang 2009-10-14 1197 task->task_proto & SAS_PROTOCOL_STP) { dbf9bfe61 jack wang 2009-10-14 1198 rc = pm8001_exec_internal_task_abort(pm8001_ha, pm8001_dev, dbf9bfe61 jack wang 2009-10-14 1199 pm8001_dev->sas_device, 0, tag); dbf9bfe61 jack wang 2009-10-14 1200 } else if (task->task_proto & SAS_PROTOCOL_SMP) { dbf9bfe61 jack wang 2009-10-14 1201 /* SMP */ dbf9bfe61 jack wang 2009-10-14 1202 rc = pm8001_exec_internal_task_abort(pm8001_ha, pm8001_dev, dbf9bfe61 jack wang 2009-10-14 1203 pm8001_dev->sas_device, 0, tag); dbf9bfe61 jack wang 2009-10-14 1204 dbf9bfe61 jack wang 2009-10-14 1205 } dbf9bfe61 jack wang 2009-10-14 @1206 out: dbf9bfe61 jack wang 2009-10-14 1207 if (rc != TMF_RESP_FUNC_COMPLETE) dbf9bfe61 jack wang 2009-10-14 1208 pm8001_printk("rc= %d\n", rc); dbf9bfe61 jack wang 2009-10-14 1209 return rc; dbf9bfe61 jack wang 2009-10-14 1210 } dbf9bfe61 jack wang 2009-10-14 1211 :::::: The code at line 1166 was first introduced by commit :::::: dbf9bfe615717d1145f263c0049fe2328e6ed395 [SCSI] pm8001: add SAS/SATA HBA driver :::::: TO: jack wang <jack_wang@xxxxxxxxx> :::::: CC: James Bottomley <James.Bottomley@xxxxxxx> --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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