[SCSI] cxgbi: set ulpmode only if digest is on

There is no need to set ulpmode on the tx skbs if no digest is enabled.

Signed-off-by: Karen Xie <kxie@chelsio.com>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>

1 files changed, 10 insertions, 7 deletions

diff --git a/drivers/scsi/cxgbi/libcxgbi.c b/drivers/scsi/cxgbi/libcxgbi.c
index d2ad3d676724..6de6a6f3f1e8 100644
--- a/drivers/scsi/cxgbi/libcxgbi.c
+++ b/drivers/scsi/cxgbi/libcxgbi.c
@@ -1908,13 +1908,16 @@ EXPORT_SYMBOL_GPL(cxgbi_conn_alloc_pdu);
 
 static inline void tx_skb_setmode(struct sk_buff *skb, int hcrc, int dcrc)
 {
-        u8 submode = 0;
-
-        if (hcrc)
-                submode |= 1;
-        if (dcrc)
-                submode |= 2;
-        cxgbi_skcb_ulp_mode(skb) = (ULP2_MODE_ISCSI << 4) | submode;
+        if (hcrc || dcrc) {
+                u8 submode = 0;
+
+                if (hcrc)
+                        submode |= 1;
+                if (dcrc)
+                        submode |= 2;
+                cxgbi_skcb_ulp_mode(skb) = (ULP2_MODE_ISCSI << 4) | submode;
+        } else
+                cxgbi_skcb_ulp_mode(skb) = 0;
 }
 
 int cxgbi_conn_init_pdu(struct iscsi_task *task, unsigned int offset,