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

[ching Huang]

From: ching Huang <ching2...@areca.com.tw>

This patch fixed the wrong cdb payload report to IOP.

Signed-off-by: ching Huang <ching2...@areca.com.tw>
---

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);