[PATCH net v1 4/4] net: phy: smsc: Disable IRQ support to prevent link state corruption

[Oleksij Rempel]

Disable interrupt handling for the LAN87xx PHY to prevent the network
interface from entering a corrupted state after rapid configuration
changes.

When the link configuration is changed quickly, the PHY can get stuck in
a non-functional state. In this state, 'ethtool' reports that a link is
present, but 'ip link' shows NO-CARRIER, and the interface is unable to
transfer data.

Fixes: 1ce8b37241ed ("usbnet: smsc95xx: Forward PHY interrupts to PHY driver to avoid polling")
Signed-off-by: Oleksij Rempel <o.rempel@xxxxxxxxxxxxxx>
Cc: Lukas Wunner <lukas@xxxxxxxxx>
---
 drivers/net/phy/smsc.c | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/drivers/net/phy/smsc.c b/drivers/net/phy/smsc.c
index b6489da5cfcd..dac6bf156d15 100644
--- a/drivers/net/phy/smsc.c
+++ b/drivers/net/phy/smsc.c
@@ -746,10 +746,6 @@ static struct phy_driver smsc_phy_driver[] = {
 	.soft_reset	= smsc_phy_reset,
 	.config_aneg	= lan87xx_config_aneg,
 
-	/* IRQ related */
-	.config_intr	= smsc_phy_config_intr,
-	.handle_interrupt = smsc_phy_handle_interrupt,
-
 	/* Statistics */
 	.get_sset_count = smsc_get_sset_count,
 	.get_strings	= smsc_get_strings,
-- 
2.39.5