[SCSI] lpfc 8.2.3 : Miscellaneous Small Fixes - part 1

Miscellaneous Small Fixes - part 1
- Fix typo kmzlloc -> kzalloc
- Fix discovery ndlp use after free panic
- Fix link event causing flood of 0108 messages
- Relieve some mbox congestion on link up with 100 vports
- Fix broken vport parameters
- Prevent lock recursion in logo_reglogin_issue
- Split uses of error variable in lpfc_pci_probe_one into retval and error
- Remove completion code related to dev_loss_tmo
- Remove unused LPFC_MAX_HBQ #define
- Don't compare pointers to 0 for sparse
- Make 2 functions static for sparse
- Fix default rpi cleanup code causing rogue ndlps to remain on the NPR list
- Remove annoying ELS messages when driver is unloaded
- Fix Cannot issue Register Fabric login problems on link up
- Remove LPFC_EVT_DEV_LOSS_DELAY
- Fix FC port swap test leads to device going offline
- Fix vport CT flags to only be set when accepted
- Add code to handle signals during vport_create
- Fix too many retries in FC-AL mode
- Pull lpfc_port_link_failure out of lpfc_linkdown_port

Signed-off-by: James Smart <James.Smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

drivers/scsi/lpfc/lpfc_vport.c

@@ -125,15 +125,26 @@ lpfc_vport_sparm(struct lpfc_hba *phba, struct lpfc_vport *vport)
 	pmb->vport = vport;
 	rc = lpfc_sli_issue_mbox_wait(phba, pmb, phba->fc_ratov * 2);
 	if (rc != MBX_SUCCESS) {
-		lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT | LOG_VPORT,
-				 "1818 VPort failed init, mbxCmd x%x "
-				 "READ_SPARM mbxStatus x%x, rc = x%x\n",
-				 mb->mbxCommand, mb->mbxStatus, rc);
-		lpfc_mbuf_free(phba, mp->virt, mp->phys);
-		kfree(mp);
-		if (rc != MBX_TIMEOUT)
-			mempool_free(pmb, phba->mbox_mem_pool);
-		return -EIO;
+		if (signal_pending(current)) {
+			lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT | LOG_VPORT,
+					 "1830 Signal aborted mbxCmd x%x\n",
+					 mb->mbxCommand);
+			lpfc_mbuf_free(phba, mp->virt, mp->phys);
+			kfree(mp);
+			if (rc != MBX_TIMEOUT)
+				mempool_free(pmb, phba->mbox_mem_pool);
+			return -EINTR;
+		} else {
+			lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT | LOG_VPORT,
+					 "1818 VPort failed init, mbxCmd x%x "
+					 "READ_SPARM mbxStatus x%x, rc = x%x\n",
+					 mb->mbxCommand, mb->mbxStatus, rc);
+			lpfc_mbuf_free(phba, mp->virt, mp->phys);
+			kfree(mp);
+			if (rc != MBX_TIMEOUT)
+				mempool_free(pmb, phba->mbox_mem_pool);
+			return -EIO;
+		}
 	}
 
 	memcpy(&vport->fc_sparam, mp->virt, sizeof (struct serv_parm));
@@ -204,6 +215,7 @@ lpfc_vport_create(struct fc_vport *fc_vport, bool disable)
 	int instance;
 	int vpi;
 	int rc = VPORT_ERROR;
+	int status;
 
 	if ((phba->sli_rev < 3) ||
 		!(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)) {
@@ -248,13 +260,19 @@ lpfc_vport_create(struct fc_vport *fc_vport, bool disable)
 	vport->vpi = vpi;
 	lpfc_debugfs_initialize(vport);
 
-	if (lpfc_vport_sparm(phba, vport)) {
-		lpfc_printf_vlog(vport, KERN_ERR, LOG_VPORT,
-				 "1813 Create VPORT failed. "
-				 "Cannot get sparam\n");
+	if ((status = lpfc_vport_sparm(phba, vport))) {
+		if (status == -EINTR) {
+			lpfc_printf_vlog(vport, KERN_ERR, LOG_VPORT,
+					 "1831 Create VPORT Interrupted.\n");
+			rc = VPORT_ERROR;
+		} else {
+			lpfc_printf_vlog(vport, KERN_ERR, LOG_VPORT,
+					 "1813 Create VPORT failed. "
+					 "Cannot get sparam\n");
+			rc = VPORT_NORESOURCES;
+		}
 		lpfc_free_vpi(phba, vpi);
 		destroy_port(vport);
-		rc = VPORT_NORESOURCES;
 		goto error_out;
 	}