From 133f09a169f3022be3de671b29658b7ecb375022 Mon Sep 17 00:00:00 2001
From: "David S. Miller" <davem@sunset.davemloft.net>
Date: Wed, 11 Jul 2007 23:22:55 -0700
Subject: [PATCH] [SPARC64]: Use more mearningful names for IRQ registry.

All of the interrupts say "LDX RX" and "LDX TX" currently
which is next to useless.  Put a device specific prefix
before "RX" and "TX" instead which makes it much more
useful.

Signed-off-by: David S. Miller <davem@davemloft.net>
---
 arch/sparc64/kernel/ds.c    |  2 +-
 arch/sparc64/kernel/ldc.c   | 16 +++++++++++++---
 arch/sparc64/kernel/viohs.c |  2 +-
 include/asm-sparc64/ldc.h   |  2 +-
 4 files changed, 16 insertions(+), 6 deletions(-)

diff --git a/arch/sparc64/kernel/ds.c b/arch/sparc64/kernel/ds.c
index 22517dfd021d..c7ece8c52039 100644
--- a/arch/sparc64/kernel/ds.c
+++ b/arch/sparc64/kernel/ds.c
@@ -598,7 +598,7 @@ static int __devinit ds_probe(struct vio_dev *vdev,
 	}
 	dp->lp = lp;
 
-	err = ldc_bind(lp);
+	err = ldc_bind(lp, "DS");
 	if (err)
 		goto out_free_ldc;
 
diff --git a/arch/sparc64/kernel/ldc.c b/arch/sparc64/kernel/ldc.c
index 4cba28685967..dbb65b674a67 100644
--- a/arch/sparc64/kernel/ldc.c
+++ b/arch/sparc64/kernel/ldc.c
@@ -158,6 +158,10 @@ struct ldc_channel {
 	u8				mss;
 	u8				state;
 
+#define LDC_IRQ_NAME_MAX		32
+	char				rx_irq_name[LDC_IRQ_NAME_MAX];
+	char				tx_irq_name[LDC_IRQ_NAME_MAX];
+
 	struct hlist_head		mh_list;
 
 	struct hlist_node		list;
@@ -1226,25 +1230,31 @@ EXPORT_SYMBOL(ldc_free);
  * state.  This does not initiate a handshake, ldc_connect() does
  * that.
  */
-int ldc_bind(struct ldc_channel *lp)
+int ldc_bind(struct ldc_channel *lp, const char *name)
 {
 	unsigned long hv_err, flags;
 	int err = -EINVAL;
 
 	spin_lock_irqsave(&lp->lock, flags);
 
+	if (!name)
+		goto out_err;
+
 	if (lp->state != LDC_STATE_INIT)
 		goto out_err;
 
+	snprintf(lp->rx_irq_name, LDC_IRQ_NAME_MAX, "%s RX", name);
+	snprintf(lp->tx_irq_name, LDC_IRQ_NAME_MAX, "%s TX", name);
+
 	err = request_irq(lp->cfg.rx_irq, ldc_rx,
 			  IRQF_SAMPLE_RANDOM | IRQF_SHARED,
-			  "LDC RX", lp);
+			  lp->rx_irq_name, lp);
 	if (err)
 		goto out_err;
 
 	err = request_irq(lp->cfg.tx_irq, ldc_tx,
 			  IRQF_SAMPLE_RANDOM | IRQF_SHARED,
-			  "LDC TX", lp);
+			  lp->tx_irq_name, lp);
 	if (err)
 		goto out_free_rx_irq;
 
diff --git a/arch/sparc64/kernel/viohs.c b/arch/sparc64/kernel/viohs.c
index 3eb42e3624f3..b0b1b8779342 100644
--- a/arch/sparc64/kernel/viohs.c
+++ b/arch/sparc64/kernel/viohs.c
@@ -724,7 +724,7 @@ void vio_port_up(struct vio_driver_state *vio)
 
 	err = 0;
 	if (state == LDC_STATE_INIT) {
-		err = ldc_bind(vio->lp);
+		err = ldc_bind(vio->lp, vio->name);
 		if (err)
 			printk(KERN_WARNING "%s: Port %lu bind failed, "
 			       "err=%d\n",
diff --git a/include/asm-sparc64/ldc.h b/include/asm-sparc64/ldc.h
index 1c13738f13ff..3c91f269f9db 100644
--- a/include/asm-sparc64/ldc.h
+++ b/include/asm-sparc64/ldc.h
@@ -56,7 +56,7 @@ extern struct ldc_channel *ldc_alloc(unsigned long id,
 extern void ldc_free(struct ldc_channel *lp);
 
 /* Register TX and RX queues of the link with the hypervisor.  */
-extern int ldc_bind(struct ldc_channel *lp);
+extern int ldc_bind(struct ldc_channel *lp, const char *name);
 
 /* For non-RAW protocols we need to complete a handshake before
  * communication can proceed.  ldc_connect() does that, if the
-- 
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