netdev - [PATCH net v9 2/7] cxgb4i: fix credit check for tx_data

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Message-Id: <201412111525.sBBFPhtY012933@localhost6.localdomain6>
Date:	Thu, 11 Dec 2014 07:25:43 -0800
From:	Karen Xie <kxie@...lsio.com>
To:	linux-scsi@...r.kernel.org, netdev@...r.kernel.org
Cc:	kxie@...lsio.com, hariprasad@...lsio.com, anish@...lsio.com,
	hch@...radead.org, James.Bottomley@...senPartnership.com,
	michaelc@...wisc.edu, davem@...emloft.net
Subject: [PATCH net v9 2/7] cxgb4i: fix credit check for tx_data_wr

From: Karen Xie <kxie@...lsio.com>

make sure any tx credit related checking is done before adding the wr header.

Signed-off-by: Karen Xie <kxie@...lsio.com>
---
 drivers/scsi/cxgbi/cxgb4i/cxgb4i.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/drivers/scsi/cxgbi/cxgb4i/cxgb4i.c b/drivers/scsi/cxgbi/cxgb4i/cxgb4i.c
index f119a67..abee611 100644
--- a/drivers/scsi/cxgbi/cxgb4i/cxgb4i.c
+++ b/drivers/scsi/cxgbi/cxgb4i/cxgb4i.c
@@ -547,10 +547,11 @@ static inline void make_tx_data_wr(struct cxgbi_sock *csk, struct sk_buff *skb,
 	struct fw_ofld_tx_data_wr *req;
 	unsigned int submode = cxgbi_skcb_ulp_mode(skb) & 3;
 	unsigned int wr_ulp_mode = 0;
+	bool imm = is_ofld_imm(skb);
 
 	req = (struct fw_ofld_tx_data_wr *)__skb_push(skb, sizeof(*req));
 
-	if (is_ofld_imm(skb)) {
+	if (imm) {
 		req->op_to_immdlen = htonl(FW_WR_OP(FW_OFLD_TX_DATA_WR) |
 					FW_WR_COMPL(1) |
 					FW_WR_IMMDLEN(dlen));
--
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