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[5/8] scsi: hisi_sas: consolidate command check in hisi_sas_get_ata_protocol()

Message ID 1521821115-120040-6-git-send-email-john.garry@huawei.com (mailing list archive)
State Accepted
Headers show

Commit Message

John Garry March 23, 2018, 4:05 p.m. UTC 
From: Xiaofei Tan <tanxiaofei@huawei.com>

Currently we check the fis->command value in 2 locations in
hisi_sas_get_ata_protocol() switch statement. Fix this by
consolidating the check for fis->command value to 1 location
only.

Signed-off-by: Xiaofei Tan <tanxiaofei@huawei.com>
Signed-off-by: John Garry <john.garry@huawei.com>
---
 drivers/scsi/hisi_sas/hisi_sas_main.c | 29 +++++++++++++++--------------
 1 file changed, 15 insertions(+), 14 deletions(-)
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Patch

diff --git a/drivers/scsi/hisi_sas/hisi_sas_main.c b/drivers/scsi/hisi_sas/hisi_sas_main.c
index 9563dfa..8557fd0 100644
--- a/drivers/scsi/hisi_sas/hisi_sas_main.c
+++ b/drivers/scsi/hisi_sas/hisi_sas_main.c
@@ -78,22 +78,23 @@  u8 hisi_sas_get_ata_protocol(struct host_to_dev_fis *fis, int direction)
 	case ATA_CMD_STANDBYNOW1:
 	case ATA_CMD_ZAC_MGMT_OUT:
 		return HISI_SAS_SATA_PROTOCOL_NONDATA;
+
+	case ATA_CMD_SET_MAX:
+		switch (fis->features) {
+		case ATA_SET_MAX_PASSWD:
+		case ATA_SET_MAX_LOCK:
+			return HISI_SAS_SATA_PROTOCOL_PIO;
+
+		case ATA_SET_MAX_PASSWD_DMA:
+		case ATA_SET_MAX_UNLOCK_DMA:
+			return HISI_SAS_SATA_PROTOCOL_DMA;
+
+		default:
+			return HISI_SAS_SATA_PROTOCOL_NONDATA;
+		}
+
 	default:
 	{
-		if (fis->command == ATA_CMD_SET_MAX) {
-			switch (fis->features) {
-			case ATA_SET_MAX_PASSWD:
-			case ATA_SET_MAX_LOCK:
-				return HISI_SAS_SATA_PROTOCOL_PIO;
-
-			case ATA_SET_MAX_PASSWD_DMA:
-			case ATA_SET_MAX_UNLOCK_DMA:
-				return HISI_SAS_SATA_PROTOCOL_DMA;
-
-			default:
-				return HISI_SAS_SATA_PROTOCOL_NONDATA;
-			}
-		}
 		if (direction == DMA_NONE)
 			return HISI_SAS_SATA_PROTOCOL_NONDATA;
 		return HISI_SAS_SATA_PROTOCOL_PIO;