Thread (106 messages) 106 messages, 9 authors, 2021-09-28
STALE1729d
Revisions (3)
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  2. v2 [diff vs current]
  3. v3 [diff vs current]

[PATCH 54/84] myrb: Call scsi_done() directly

From: Bart Van Assche <bvanassche@acm.org>
Date: 2021-09-18 00:07:59
Subsystem: mylex dac960 pci raid controller, scsi subsystem, the rest · Maintainers: Hannes Reinecke, "James E.J. Bottomley", "Martin K. Petersen", Linus Torvalds

Conditional statements are faster than indirect calls. Hence call
scsi_done() directly.

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
---
 drivers/scsi/myrb.c | 32 ++++++++++++++++----------------
 1 file changed, 16 insertions(+), 16 deletions(-)
diff --git a/drivers/scsi/myrb.c b/drivers/scsi/myrb.c
index a4a88323e020..e8a7bcce4674 100644
--- a/drivers/scsi/myrb.c
+++ b/drivers/scsi/myrb.c
@@ -1282,7 +1282,7 @@ static int myrb_pthru_queuecommand(struct Scsi_Host *shost,
 	if (nsge > 1) {
 		dma_pool_free(cb->dcdb_pool, dcdb, dcdb_addr);
 		scmd->result = (DID_ERROR << 16);
-		scmd->scsi_done(scmd);
+		scsi_done(scmd);
 		return 0;
 	}
 
@@ -1436,13 +1436,13 @@ static int myrb_ldev_queuecommand(struct Scsi_Host *shost,
 		dev_dbg(&shost->shost_gendev, "ldev %u in state %x, skip\n",
 			sdev->id, ldev_info ? ldev_info->state : 0xff);
 		scmd->result = (DID_BAD_TARGET << 16);
-		scmd->scsi_done(scmd);
+		scsi_done(scmd);
 		return 0;
 	}
 	switch (scmd->cmnd[0]) {
 	case TEST_UNIT_READY:
 		scmd->result = (DID_OK << 16);
-		scmd->scsi_done(scmd);
+		scsi_done(scmd);
 		return 0;
 	case INQUIRY:
 		if (scmd->cmnd[1] & 1) {
@@ -1452,11 +1452,11 @@ static int myrb_ldev_queuecommand(struct Scsi_Host *shost,
 			myrb_inquiry(cb, scmd);
 			scmd->result = (DID_OK << 16);
 		}
-		scmd->scsi_done(scmd);
+		scsi_done(scmd);
 		return 0;
 	case SYNCHRONIZE_CACHE:
 		scmd->result = (DID_OK << 16);
-		scmd->scsi_done(scmd);
+		scsi_done(scmd);
 		return 0;
 	case MODE_SENSE:
 		if ((scmd->cmnd[2] & 0x3F) != 0x3F &&
@@ -1467,25 +1467,25 @@ static int myrb_ldev_queuecommand(struct Scsi_Host *shost,
 			myrb_mode_sense(cb, scmd, ldev_info);
 			scmd->result = (DID_OK << 16);
 		}
-		scmd->scsi_done(scmd);
+		scsi_done(scmd);
 		return 0;
 	case READ_CAPACITY:
 		if ((scmd->cmnd[1] & 1) ||
 		    (scmd->cmnd[8] & 1)) {
 			/* Illegal request, invalid field in CDB */
 			scsi_build_sense(scmd, 0, ILLEGAL_REQUEST, 0x24, 0);
-			scmd->scsi_done(scmd);
+			scsi_done(scmd);
 			return 0;
 		}
 		lba = get_unaligned_be32(&scmd->cmnd[2]);
 		if (lba) {
 			/* Illegal request, invalid field in CDB */
 			scsi_build_sense(scmd, 0, ILLEGAL_REQUEST, 0x24, 0);
-			scmd->scsi_done(scmd);
+			scsi_done(scmd);
 			return 0;
 		}
 		myrb_read_capacity(cb, scmd, ldev_info);
-		scmd->scsi_done(scmd);
+		scsi_done(scmd);
 		return 0;
 	case REQUEST_SENSE:
 		myrb_request_sense(cb, scmd);
@@ -1499,13 +1499,13 @@ static int myrb_ldev_queuecommand(struct Scsi_Host *shost,
 			/* Assume good status */
 			scmd->result = (DID_OK << 16);
 		}
-		scmd->scsi_done(scmd);
+		scsi_done(scmd);
 		return 0;
 	case READ_6:
 		if (ldev_info->state == MYRB_DEVICE_WO) {
 			/* Data protect, attempt to read invalid data */
 			scsi_build_sense(scmd, 0, DATA_PROTECT, 0x21, 0x06);
-			scmd->scsi_done(scmd);
+			scsi_done(scmd);
 			return 0;
 		}
 		fallthrough;
@@ -1519,7 +1519,7 @@ static int myrb_ldev_queuecommand(struct Scsi_Host *shost,
 		if (ldev_info->state == MYRB_DEVICE_WO) {
 			/* Data protect, attempt to read invalid data */
 			scsi_build_sense(scmd, 0, DATA_PROTECT, 0x21, 0x06);
-			scmd->scsi_done(scmd);
+			scsi_done(scmd);
 			return 0;
 		}
 		fallthrough;
@@ -1533,7 +1533,7 @@ static int myrb_ldev_queuecommand(struct Scsi_Host *shost,
 		if (ldev_info->state == MYRB_DEVICE_WO) {
 			/* Data protect, attempt to read invalid data */
 			scsi_build_sense(scmd, 0, DATA_PROTECT, 0x21, 0x06);
-			scmd->scsi_done(scmd);
+			scsi_done(scmd);
 			return 0;
 		}
 		fallthrough;
@@ -1546,7 +1546,7 @@ static int myrb_ldev_queuecommand(struct Scsi_Host *shost,
 	default:
 		/* Illegal request, invalid opcode */
 		scsi_build_sense(scmd, 0, ILLEGAL_REQUEST, 0x20, 0);
-		scmd->scsi_done(scmd);
+		scsi_done(scmd);
 		return 0;
 	}
 
@@ -1610,7 +1610,7 @@ static int myrb_queuecommand(struct Scsi_Host *shost,
 
 	if (sdev->channel > myrb_logical_channel(shost)) {
 		scmd->result = (DID_BAD_TARGET << 16);
-		scmd->scsi_done(scmd);
+		scsi_done(scmd);
 		return 0;
 	}
 	if (sdev->channel == myrb_logical_channel(shost))
@@ -2361,7 +2361,7 @@ static void myrb_handle_scsi(struct myrb_hba *cb, struct myrb_cmdblk *cmd_blk,
 		scmd->result = (DID_ERROR << 16);
 		break;
 	}
-	scmd->scsi_done(scmd);
+	scsi_done(scmd);
 }
 
 static void myrb_handle_cmdblk(struct myrb_hba *cb, struct myrb_cmdblk *cmd_blk)
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