[PATCH 1/2] scsi: arcmsr: fixed the wrong cdb payload report to IOP

[ching Huang <ching2048@xxxxxxxxxxxx>]

From: ching Huang <ching2048@xxxxxxxxxxxx>

This patch fixed the wrong cdb payload report to IOP.

Signed-off-by: ching Huang <ching2048@xxxxxxxxxxxx>
---

diff --git a/drivers/scsi/arcmsr/arcmsr_hba.c b/drivers/scsi/arcmsr/arcmsr_hba.c
index 4b79661..930972c 100644
--- a/drivers/scsi/arcmsr/arcmsr_hba.c
+++ b/drivers/scsi/arcmsr/arcmsr_hba.c
@@ -1923,8 +1923,12 @@ static void arcmsr_post_ccb(struct AdapterControlBlock *acb, struct CommandContr
 
 		if (ccb->arc_cdb_size <= 0x300)
 			arc_cdb_size = (ccb->arc_cdb_size - 1) >> 6 | 1;
-		else
-			arc_cdb_size = (((ccb->arc_cdb_size + 0xff) >> 8) + 2) << 1 | 1;
+		else {
+			arc_cdb_size = ((ccb->arc_cdb_size + 0xff) >> 8) + 2;
+			if (arc_cdb_size > 0xF)
+				arc_cdb_size = 0xF;
+			arc_cdb_size = (arc_cdb_size << 1) | 1;
+		}
 		ccb_post_stamp = (ccb->smid | arc_cdb_size);
 		writel(0, &pmu->inbound_queueport_high);
 		writel(ccb_post_stamp, &pmu->inbound_queueport_low);