| From | Greg Kroah-Hartman <> | Subject | [PATCH 4.14 094/106] net: usb: lan78xx: lan78xx_phy_init(): use PHY_POLL instead of "0" if no IRQ is available | Date | Mon, 6 Dec 2021 15:56:42 +0100 |
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From: Sven Schuchmann <schuchmann@schleissheimer.de>
commit 817b653160db9852d5a0498a31f047e18ce27e5b upstream.
On most systems request for IRQ 0 will fail, phylib will print an error message and fall back to polling. To fix this set the phydev->irq to PHY_POLL if no IRQ is available.
Fixes: cc89c323a30e ("lan78xx: Use irq_domain for phy interrupt from USB Int. EP") Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Sven Schuchmann <schuchmann@schleissheimer.de> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> --- drivers/net/usb/lan78xx.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/net/usb/lan78xx.c +++ b/drivers/net/usb/lan78xx.c @@ -2052,7 +2052,7 @@ static int lan78xx_phy_init(struct lan78 if (dev->domain_data.phyirq > 0) phydev->irq = dev->domain_data.phyirq; else - phydev->irq = 0; + phydev->irq = PHY_POLL; netdev_dbg(dev->net, "phydev->irq = %d\n", phydev->irq); /* set to AUTOMDIX */
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