From 5411ca7178d40d94e009f3a00f10e20e6067037c Mon Sep 17 00:00:00 2001
From: Chris Healy <cphealy@gmail.com>
Date: Mon, 6 Jul 2020 18:27:07 -0700
Subject: [PATCH] net: sfp: Unique GPIO interrupt names

Dynamically generate a unique GPIO interrupt name, based on the
device name and the GPIO name.  For example:

103:          0   sx1503q  12 Edge      sff2-los
104:          0   sx1503q  13 Edge      sff2-tx-fault

The sffX indicates the SFP the los and tx-fault are associated with.

v3:
- reverse Christmas tree new variable
- fix spaces vs tabs
v2:
- added net-next to PATCH part of subject line
- switched to devm_kasprintf()

Signed-off-by: Chris Healy <cphealy@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/phy/sfp.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/net/phy/sfp.c b/drivers/net/phy/sfp.c
index 73c2969f11a4b..7bdfcde98266c 100644
--- a/drivers/net/phy/sfp.c
+++ b/drivers/net/phy/sfp.c
@@ -2238,6 +2238,7 @@ static int sfp_probe(struct platform_device *pdev)
 {
 	const struct sff_data *sff;
 	struct i2c_adapter *i2c;
+	char *sfp_irq_name;
 	struct sfp *sfp;
 	int err, i;
 
@@ -2349,12 +2350,16 @@ static int sfp_probe(struct platform_device *pdev)
 			continue;
 		}
 
+		sfp_irq_name = devm_kasprintf(sfp->dev, GFP_KERNEL,
+					      "%s-%s", dev_name(sfp->dev),
+					      gpio_of_names[i]);
+
 		err = devm_request_threaded_irq(sfp->dev, sfp->gpio_irq[i],
 						NULL, sfp_irq,
 						IRQF_ONESHOT |
 						IRQF_TRIGGER_RISING |
 						IRQF_TRIGGER_FALLING,
-						dev_name(sfp->dev), sfp);
+						sfp_irq_name, sfp);
 		if (err) {
 			sfp->gpio_irq[i] = 0;
 			sfp->need_poll = true;
-- 
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