Merge master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6

* master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6:
  [SCSI] ibmvscsi: Prevent IO during partner login
  [SCSI] lpfc : Correct queue tag handling
  [SCSI] Update MAINTAINER email address and trees
  [SCSI] osst: fix if (...) \n #if... cases missing semicolons when false

3 files changed, 21 insertions, 9 deletions

diff --git a/drivers/scsi/ibmvscsi/ibmvscsi.c b/drivers/scsi/ibmvscsi/ibmvscsi.c
index 22d91ee173c5..5f2396c03958 100644
--- a/drivers/scsi/ibmvscsi/ibmvscsi.c
+++ b/drivers/scsi/ibmvscsi/ibmvscsi.c
@@ -556,7 +556,7 @@ static int ibmvscsi_send_srp_event(struct srp_event_struct *evt_struct,
 				   unsigned long timeout)
 {
 	u64 *crq_as_u64 = (u64 *) &evt_struct->crq;
-	int request_status;
+	int request_status = 0;
 	int rc;
 
 	/* If we have exhausted our request limit, just fail this request,
@@ -574,6 +574,13 @@ static int ibmvscsi_send_srp_event(struct srp_event_struct *evt_struct,
 		if (request_status < -1)
 			goto send_error;
 		/* Otherwise, we may have run out of requests. */
+		/* If request limit was 0 when we started the adapter is in the
+		 * process of performing a login with the server adapter, or
+		 * we may have run out of requests.
+		 */
+		else if (request_status == -1 &&
+		         evt_struct->iu.srp.login_req.opcode != SRP_LOGIN_REQ)
+			goto send_busy;
 		/* Abort and reset calls should make it through.
 		 * Nothing except abort and reset should use the last two
 		 * slots unless we had two or less to begin with.
@@ -633,7 +640,8 @@ static int ibmvscsi_send_srp_event(struct srp_event_struct *evt_struct,
 	unmap_cmd_data(&evt_struct->iu.srp.cmd, evt_struct, hostdata->dev);
 
 	free_event_struct(&hostdata->pool, evt_struct);
-	atomic_inc(&hostdata->request_limit);
+	if (request_status != -1)
+		atomic_inc(&hostdata->request_limit);
 	return SCSI_MLQUEUE_HOST_BUSY;
 
  send_error:
@@ -927,10 +935,11 @@ static int send_srp_login(struct ibmvscsi_host_data *hostdata)
 	login->req_buf_fmt = SRP_BUF_FORMAT_DIRECT | SRP_BUF_FORMAT_INDIRECT;
 	
 	spin_lock_irqsave(hostdata->host->host_lock, flags);
-	/* Start out with a request limit of 1, since this is negotiated in
-	 * the login request we are just sending
+	/* Start out with a request limit of 0, since this is negotiated in
+	 * the login request we are just sending and login requests always
+	 * get sent by the driver regardless of request_limit.
 	 */
-	atomic_set(&hostdata->request_limit, 1);
+	atomic_set(&hostdata->request_limit, 0);
 
 	rc = ibmvscsi_send_srp_event(evt_struct, hostdata, init_timeout * 2);
 	spin_unlock_irqrestore(hostdata->host->host_lock, flags);
diff --git a/drivers/scsi/lpfc/lpfc_scsi.c b/drivers/scsi/lpfc/lpfc_scsi.c
index c0755565fae9..4e46045dea6d 100644
--- a/drivers/scsi/lpfc/lpfc_scsi.c
+++ b/drivers/scsi/lpfc/lpfc_scsi.c
@@ -682,6 +682,7 @@ lpfc_scsi_prep_cmnd(struct lpfc_vport *vport, struct lpfc_scsi_buf *lpfc_cmd,
 	IOCB_t *iocb_cmd = &lpfc_cmd->cur_iocbq.iocb;
 	struct lpfc_iocbq *piocbq = &(lpfc_cmd->cur_iocbq);
 	int datadir = scsi_cmnd->sc_data_direction;
+	char tag[2];
 
 	lpfc_cmd->fcp_rsp->rspSnsLen = 0;
 	/* clear task management bits */
@@ -692,8 +693,8 @@ lpfc_scsi_prep_cmnd(struct lpfc_vport *vport, struct lpfc_scsi_buf *lpfc_cmd,
 
 	memcpy(&fcp_cmnd->fcpCdb[0], scsi_cmnd->cmnd, 16);
 
-	if (scsi_cmnd->device->tagged_supported) {
-		switch (scsi_cmnd->tag) {
+	if (scsi_populate_tag_msg(scsi_cmnd, tag)) {
+		switch (tag[0]) {
 		case HEAD_OF_QUEUE_TAG:
 			fcp_cmnd->fcpCntl1 = HEAD_OF_Q;
 			break;
diff --git a/drivers/scsi/osst.c b/drivers/scsi/osst.c
index 4652ad22516b..abef7048f25b 100644
--- a/drivers/scsi/osst.c
+++ b/drivers/scsi/osst.c
@@ -593,10 +593,11 @@ static int osst_verify_frame(struct osst_tape * STp, int frame_seq_number, int q
 	if (aux->frame_type != OS_FRAME_TYPE_DATA &&
 	    aux->frame_type != OS_FRAME_TYPE_EOD &&
 	    aux->frame_type != OS_FRAME_TYPE_MARKER) {
-		if (!quiet)
+		if (!quiet) {
 #if DEBUG
 			printk(OSST_DEB_MSG "%s:D: Skipping frame, frame type %x\n", name, aux->frame_type);
 #endif
+		}
 		goto err_out;
 	}
 	if (aux->frame_type == OS_FRAME_TYPE_EOD &&
@@ -606,11 +607,12 @@ static int osst_verify_frame(struct osst_tape * STp, int frame_seq_number, int q
 		goto err_out;
 	}
         if (frame_seq_number != -1 && ntohl(aux->frame_seq_num) != frame_seq_number) {
-		if (!quiet)
+		if (!quiet) {
 #if DEBUG
 			printk(OSST_DEB_MSG "%s:D: Skipping frame, sequence number %u (expected %d)\n", 
 					    name, ntohl(aux->frame_seq_num), frame_seq_number);
 #endif
+		}
 		goto err_out;
 	}
 	if (aux->frame_type == OS_FRAME_TYPE_MARKER) {