net/txgbe: fix interrupt enable mask

[ upstream commit 646b058472cdfb503a0c555ed2e0f891c05437a7 ]

When using no LSC mode, GPIO interrupt can still cause
txgbe_dev_interrupt_delayed_handler() to be called, with
TXGBE_FLAG_NEED_LINK_UPDATE to be set. So add a LSC condition on
intr->mask_misc.

Fixes: 2fc745e ("net/txgbe: add interrupt operation")
Fixes: d3bb4a04eac1 ("net/txgbe: add SFP hotplug identification")

Signed-off-by: Jiawen Wu <jiawenwu@trustnetic.com>

drivers/net/txgbe/txgbe_ethdev.c

@@ -3133,7 +3133,8 @@ txgbe_dev_interrupt_delayed_handler(void *param)
 	}
 
 	/* restore original mask */
-	intr->mask_misc |= TXGBE_ICRMISC_LSC;
+	if (dev->data->dev_conf.intr_conf.lsc == 1)
+		intr->mask_misc |= TXGBE_ICRMISC_LSC;
 
 	intr->mask = intr->mask_orig;
 	intr->mask_orig = 0;