[PATCH] ib_srpt: Make compilation with BUG=n proceed

[Bart Van Assche <bvanassche-HInyCGIudOg@public.gmane.org>]

With CONFIG_BUG=n the __WARN() macro is not defined. Avoid that
building with CONFIG_BUG=n fails by replacing __WARN() with
WARN_ON(true). Also make sure that each such statement is preceeded
by an appropriate pr_err() statement.

Signed-off-by: Bart Van Assche <bvanassche-HInyCGIudOg@public.gmane.org>
Cc: Nicholas Bellinger <nab-IzHhD5pYlfBP7FQvKIMDCQ@public.gmane.org>
Cc: Roland Dreier <roland-BHEL68pLQRGGvPXPguhicg@public.gmane.org>
Cc: Christoph Hellwig <hch-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org>
Cc: Randy Dunlap <rdunlap-/UHa2rfvQTnk1uMJSBkQmQ@public.gmane.org>
Cc: Stephen Rothwell <sfr-3FnU+UHB4dNDw9hX6IcOSA@public.gmane.org>
---
 drivers/infiniband/ulp/srpt/ib_srpt.c |   18 +++++++++++-------
 1 files changed, 11 insertions(+), 7 deletions(-)

diff --git a/drivers/infiniband/ulp/srpt/ib_srpt.c b/drivers/infiniband/ulp/srpt/ib_srpt.c
index 48b3e19..f09d483 100644
--- a/drivers/infiniband/ulp/srpt/ib_srpt.c
+++ b/drivers/infiniband/ulp/srpt/ib_srpt.c
@@ -1464,9 +1464,9 @@ static void srpt_handle_rdma_comp(struct srpt_rdma_ch *ch,
 	} else if (opcode == SRPT_RDMA_ABORT) {
 		ioctx->rdma_aborted = true;
 	} else {
-		__WARN();
-		printk(KERN_ERR "%s[%d]: scmnd == NULL (opcode %d)", __func__,
-				__LINE__, opcode);
+		pr_err("%s[%d]: unexpected opcode %d", __func__, __LINE__,
+		       opcode);
+		WARN_ON(true);
 	}
 }
 
@@ -2737,7 +2737,9 @@ static void srpt_cm_dreq_recv(struct ib_cm_id *cm_id)
 		break;
 	case CH_DISCONNECTING:
 	case CH_DRAINING:
-		__WARN();
+		pr_err("%s[%d]: unexpected state %d\n", __func__, __LINE__,
+		       ch->state);
+		WARN_ON(true);
 		break;
 	}
 	spin_unlock_irqrestore(&ch->spinlock, flags);
@@ -2966,7 +2968,9 @@ static int srpt_write_pending(struct se_cmd *se_cmd)
 	switch (ch_state) {
 	case CH_CONNECTING:
 		/* This code should never be reached. */
-		__WARN();
+		pr_err("%s[%d]: unexpected state %d\n", __func__, __LINE__,
+		       ch_state);
+		WARN_ON(true);
 		ret = -EINVAL;
 		goto out;
 	case CH_LIVE:
@@ -3030,9 +3034,9 @@ static int srpt_queue_response(struct se_cmd *cmd)
 		ioctx->state = SRPT_STATE_MGMT_RSP_SENT;
 		break;
 	default:
-		printk(KERN_ERR "ch %p; cmd %d: unexpected command state %d\n",
+		pr_err("ch %p; cmd %d: unexpected command state %d\n",
 		       ch, ioctx->ioctx.index, ioctx->state);
-		__WARN();
+		WARN_ON(true);
 		break;
 	}
 	spin_unlock_irqrestore(&ioctx->spinlock, flags);
-- 
1.7.3.4

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