linux-kernel - [PATCH 16/16] drivers/infiniband/hw/nes: use WARN

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Date:	Sat,  3 Nov 2012 11:58:37 +0100
From:	Julia Lawall <Julia.Lawall@...6.fr>
To:	Faisal Latif <faisal.latif@...el.com>
Cc:	kernel-janitors@...r.kernel.org, Roland Dreier <roland@...nel.org>,
	Sean Hefty <sean.hefty@...el.com>,
	Hal Rosenstock <hal.rosenstock@...il.com>,
	linux-rdma@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH 16/16] drivers/infiniband/hw/nes: use WARN

From: Julia Lawall <Julia.Lawall@...6.fr>

Use WARN rather than printk followed by WARN_ON(1), for conciseness.

A simplified version of the semantic patch that makes this transformation
is as follows: (http://coccinelle.lip6.fr/)

// <smpl>
@@
expression list es;
@@

-printk(
+WARN(1,
  es);
-WARN_ON(1);
// </smpl>

Signed-off-by: Julia Lawall <Julia.Lawall@...6.fr>

---
 drivers/infiniband/hw/nes/nes_cm.c  |    6 ++----
 drivers/infiniband/hw/nes/nes_mgt.c |    6 ++----
 2 files changed, 4 insertions(+), 8 deletions(-)

diff --git a/drivers/infiniband/hw/nes/nes_cm.c b/drivers/infiniband/hw/nes/nes_cm.c
index cfaacaf..8a15a1d 100644
--- a/drivers/infiniband/hw/nes/nes_cm.c
+++ b/drivers/infiniband/hw/nes/nes_cm.c
@@ -629,11 +629,9 @@ static void build_rdma0_msg(struct nes_cm_node *cm_node, struct nes_qp **nesqp_a
 
 	case SEND_RDMA_READ_ZERO:
 	default:
-		if (cm_node->send_rdma0_op != SEND_RDMA_READ_ZERO) {
-			printk(KERN_ERR "%s[%u]: Unsupported RDMA0 len operation=%u\n",
+		if (cm_node->send_rdma0_op != SEND_RDMA_READ_ZERO)
+			WARN(1, KERN_ERR "%s[%u]: Unsupported RDMA0 len operation=%u\n",
 				 __func__, __LINE__, cm_node->send_rdma0_op);
-			WARN_ON(1);
-		}
 		nes_debug(NES_DBG_CM, "Sending first rdma operation.\n");
 		wqe->wqe_words[NES_IWARP_SQ_WQE_MISC_IDX] =
 			cpu_to_le32(NES_IWARP_SQ_OP_RDMAR);
diff --git a/drivers/infiniband/hw/nes/nes_mgt.c b/drivers/infiniband/hw/nes/nes_mgt.c
index 3ba7be3..53bb88c 100644
--- a/drivers/infiniband/hw/nes/nes_mgt.c
+++ b/drivers/infiniband/hw/nes/nes_mgt.c
@@ -649,11 +649,9 @@ static void nes_chg_qh_handler(struct nes_device *nesdev, struct nes_cqp_request
 	nesqp = qh_chg->nesqp;
 
 	/* Should we handle the bad completion */
-	if (cqp_request->major_code) {
-		printk(KERN_ERR PFX "Invalid cqp_request major_code=0x%x\n",
+	if (cqp_request->major_code)
+		WARN(1, KERN_ERR PFX "Invalid cqp_request major_code=0x%x\n",
 		       cqp_request->major_code);
-		WARN_ON(1);
-	}
 
 	switch (nesqp->pau_state) {
 	case PAU_DEL_QH:

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