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From: Hannes Reinecke <hare@suse.de>
To: James Bottomley <james.bottomley@hansenpartnership.com>
Cc: Christoph Hellwig <hch@lst.de>,
	"Martin K. Petersen" <martin.petersen@oracle.com>,
	Bart van Assche <bart.vanassche@sandisk.com>,
	linux-scsi@vger.kernel.org, Hannes Reinecke <hare@suse.de>
Subject: [PATCH 10/23] scsi_dh_alua: Pass buffer as function argument
Date: Thu, 27 Aug 2015 14:41:08 +0200	[thread overview]
Message-ID: <1440679281-13234-11-git-send-email-hare@suse.de> (raw)
In-Reply-To: <1440679281-13234-1-git-send-email-hare@suse.de>

Pass in the buffer as a function argument for submit_rtpg().

Reviewed-by: Bart Van Assche <bart.vanassche@sandisk.com>
Signed-off-by: Hannes Reinecke <hare@suse.de>
---
 drivers/scsi/device_handler/scsi_dh_alua.c | 20 ++++++++++----------
 1 file changed, 10 insertions(+), 10 deletions(-)

diff --git a/drivers/scsi/device_handler/scsi_dh_alua.c b/drivers/scsi/device_handler/scsi_dh_alua.c
index 0636721..9e2b3af 100644
--- a/drivers/scsi/device_handler/scsi_dh_alua.c
+++ b/drivers/scsi/device_handler/scsi_dh_alua.c
@@ -137,12 +137,13 @@ static struct request *get_alua_req(struct scsi_device *sdev,
  * submit_rtpg - Issue a REPORT TARGET GROUP STATES command
  * @sdev: sdev the command should be sent to
  */
-static unsigned submit_rtpg(struct scsi_device *sdev, struct alua_dh_data *h)
+static unsigned submit_rtpg(struct scsi_device *sdev, unsigned char *buff,
+			    int bufflen, unsigned char *sense, int flags)
 {
 	struct request *rq;
 	int err = 0;
 
-	rq = get_alua_req(sdev, h->buff, h->bufflen, READ);
+	rq = get_alua_req(sdev, buff, bufflen, READ);
 	if (!rq) {
 		err = DRIVER_BUSY << 24;
 		goto done;
@@ -150,22 +151,21 @@ static unsigned submit_rtpg(struct scsi_device *sdev, struct alua_dh_data *h)
 
 	/* Prepare the command. */
 	rq->cmd[0] = MAINTENANCE_IN;
-	if (!(h->flags & ALUA_RTPG_EXT_HDR_UNSUPP))
+	if (!(flags & ALUA_RTPG_EXT_HDR_UNSUPP))
 		rq->cmd[1] = MI_REPORT_TARGET_PGS | MI_EXT_HDR_PARAM_FMT;
 	else
 		rq->cmd[1] = MI_REPORT_TARGET_PGS;
-	put_unaligned_be32(h->bufflen, &rq->cmd[6]);
+	put_unaligned_be32(bufflen, &rq->cmd[6]);
 	rq->cmd_len = COMMAND_SIZE(MAINTENANCE_IN);
 
-	rq->sense = h->sense;
+	rq->sense = sense;
 	memset(rq->sense, 0, SCSI_SENSE_BUFFERSIZE);
-	rq->sense_len = h->senselen = 0;
+	rq->sense_len = 0;
 
 	blk_execute_rq(rq->q, NULL, rq, 1);
-	if (rq->errors) {
+	if (rq->errors)
 		err = rq->errors;
-		h->senselen = rq->sense_len;
-	}
+
 	blk_put_request(rq);
 done:
 	return err;
@@ -491,7 +491,7 @@ static int alua_rtpg(struct scsi_device *sdev, struct alua_dh_data *h, int wait_
 		expiry = round_jiffies_up(jiffies + h->transition_tmo * HZ);
 
  retry:
-	retval = submit_rtpg(sdev, h);
+	retval = submit_rtpg(sdev, h->buff, h->bufflen, h->sense, h->flags);
 
 	if (retval) {
 		if (!scsi_normalize_sense(h->sense, SCSI_SENSE_BUFFERSIZE,
-- 
1.8.5.6


  parent reply	other threads:[~2015-08-27 12:41 UTC|newest]

Thread overview: 93+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-08-27 12:40 [PATCHv4 00/23] asynchronous ALUA device handler Hannes Reinecke
2015-08-27 12:40 ` [PATCH 01/23] scsi_dh_alua: Disable ALUA handling for non-disk devices Hannes Reinecke
2015-09-01  9:37   ` Christoph Hellwig
2015-09-04  3:36   ` Martin K. Petersen
2015-09-22 18:28   ` Ewan Milne
2015-08-27 12:41 ` [PATCH 02/23] scsi_dh_alua: Use vpd_pg83 information Hannes Reinecke
2015-09-04  3:37   ` Martin K. Petersen
2015-09-22 18:29   ` Ewan Milne
2015-08-27 12:41 ` [PATCH 03/23] scsi_dh_alua: improved logging Hannes Reinecke
2015-09-04  3:38   ` Martin K. Petersen
2015-09-22 18:30   ` Ewan Milne
2015-08-27 12:41 ` [PATCH 04/23] scsi_dh_alua: use standard logging functions Hannes Reinecke
2015-09-01  9:48   ` Christoph Hellwig
2015-09-01 12:39     ` Hannes Reinecke
2015-09-22 18:32   ` Ewan Milne
2015-08-27 12:41 ` [PATCH 05/23] scsi_dh_alua: return standard SCSI return codes in submit_rtpg Hannes Reinecke
2015-09-01  9:52   ` Christoph Hellwig
2015-09-22 18:34   ` Ewan Milne
2015-08-27 12:41 ` [PATCH 06/23] scsi_dh_alua: fixup description of stpg_endio() Hannes Reinecke
2015-09-01  9:52   ` Christoph Hellwig
2015-09-04  3:40   ` Martin K. Petersen
2015-09-22 18:36   ` Ewan Milne
2015-08-27 12:41 ` [PATCH 07/23] scsi: remove scsi_show_sense_hdr() Hannes Reinecke
2015-09-04  3:41   ` Martin K. Petersen
2015-09-22 18:36   ` Ewan Milne
2015-08-27 12:41 ` [PATCH 08/23] scsi_dh_alua: use flag for RTPG extended header Hannes Reinecke
2015-09-04  3:42   ` Martin K. Petersen
2015-09-22 18:37   ` Ewan Milne
2015-08-27 12:41 ` [PATCH 09/23] scsi_dh_alua: use unaligned access macros Hannes Reinecke
2015-09-01  9:53   ` Christoph Hellwig
2015-09-04  3:43   ` Martin K. Petersen
2015-09-22 18:37   ` Ewan Milne
2015-08-27 12:41 ` Hannes Reinecke [this message]
2015-09-01  9:55   ` [PATCH 10/23] scsi_dh_alua: Pass buffer as function argument Christoph Hellwig
2015-09-04  3:44   ` Martin K. Petersen
2015-09-22 18:43   ` Ewan Milne
2015-09-24 16:37     ` Hannes Reinecke
2015-08-27 12:41 ` [PATCH 11/23] scsi_dh_alua: Make stpg synchronous Hannes Reinecke
2015-09-01 10:04   ` Christoph Hellwig
2015-09-01 12:58     ` Hannes Reinecke
2015-09-22 18:50   ` Ewan Milne
2015-09-24 16:47     ` Hannes Reinecke
2015-08-27 12:41 ` [PATCH 12/23] scsi_dh_alua: switch to scsi_execute_req_flags() Hannes Reinecke
2015-09-01 10:07   ` Christoph Hellwig
2015-09-22 18:54   ` Ewan Milne
2015-08-27 12:41 ` [PATCH 13/23] scsi_dh_alua: Use separate alua_port_group structure Hannes Reinecke
2015-09-01 10:20   ` Christoph Hellwig
2015-09-01 13:02     ` Hannes Reinecke
2015-09-01 13:44       ` Christoph Hellwig
2015-09-01 14:01         ` Hannes Reinecke
2015-09-01 10:48   ` Christoph Hellwig
2015-09-22 18:57   ` Ewan Milne
2015-08-27 12:41 ` [PATCH 14/23] scsi_dh_alua: allocate RTPG buffer separately Hannes Reinecke
2015-09-22 19:04   ` Ewan Milne
2015-09-24 17:19     ` Hannes Reinecke
2015-08-27 12:41 ` [PATCH 15/23] scsi_dh_alua: simplify sense code handling Hannes Reinecke
2015-09-22 19:10   ` Ewan Milne
2015-09-28  6:41     ` Hannes Reinecke
2015-08-27 12:41 ` [PATCH 16/23] scsi: Add scsi_vpd_lun_id() Hannes Reinecke
2015-09-01 10:22   ` Christoph Hellwig
2015-09-01 12:43     ` Hannes Reinecke
2015-09-22 19:17   ` Ewan Milne
2015-09-28  7:18     ` Hannes Reinecke
2015-08-27 12:41 ` [PATCH 17/23] scsi_dh_alua: use unique device id Hannes Reinecke
2015-09-01 10:25   ` Christoph Hellwig
2015-09-22 19:31   ` Ewan Milne
2015-09-28  7:41     ` Hannes Reinecke
2015-08-27 12:41 ` [PATCH 18/23] revert "scsi_dh_alua: ALUA hander attach should succeed while TPG is transitioning" Hannes Reinecke
2015-09-22 19:34   ` Ewan Milne
2015-08-27 12:41 ` [PATCH 19/23] scsi_dh_alua: Use workqueue for RTPG Hannes Reinecke
2015-09-01 11:15   ` Christoph Hellwig
2015-09-01 12:57     ` Hannes Reinecke
2015-09-02  6:39       ` Christoph Hellwig
2015-09-02  8:48         ` Hannes Reinecke
2015-11-05 20:34           ` Todd Gill
2015-09-22 19:49   ` Ewan Milne
2015-09-22 20:15     ` Hannes Reinecke
2015-09-23 13:58       ` Ewan Milne
2015-08-27 12:41 ` [PATCH 20/23] scsi_dh_alua: Recheck state on unit attention Hannes Reinecke
2015-09-01 10:31   ` Christoph Hellwig
2015-09-22 19:57   ` Ewan Milne
2015-09-23 13:01     ` Hannes Reinecke
2015-08-27 12:41 ` [PATCH 21/23] scsi_dh_alua: update all port states Hannes Reinecke
2015-09-01 10:32   ` Christoph Hellwig
2015-09-22 20:04   ` Ewan Milne
2015-09-22 20:20     ` Hannes Reinecke
2015-08-27 12:41 ` [PATCH 22/23] scsi_dh_alua: Send TEST UNIT READY to poll for transitioning Hannes Reinecke
2015-09-01 10:34   ` Christoph Hellwig
2015-09-22 20:05   ` Ewan Milne
2015-08-27 12:41 ` [PATCH 23/23] scsi_dh_alua: Update version to 2.0 Hannes Reinecke
2015-09-01 10:34   ` Christoph Hellwig
2015-09-22 20:05   ` Ewan Milne
2015-09-24 16:25 ` [PATCHv4 00/23] asynchronous ALUA device handler Bart Van Assche

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