net: fec: Avoid allocating rx buffer using ATOMIC in ndo_open

Make ndo_open less sensitive to memory pressure.
Signed-off-by: Michael Trimarchi <michael@amarulasolutions.com>
Reviewed-by: Jakub Kicinski <kuba@kernel.org>
Link: https://lore.kernel.org/r/20220518062007.10056-1-michael@amarulasolutions.comSigned-off-by: Paolo Abeni <pabeni@redhat.com>

drivers/net/ethernet/freescale/fec_main.c

@@ -3076,7 +3076,7 @@ fec_enet_alloc_rxq_buffers(struct net_device *ndev, unsigned int queue)
 	rxq = fep->rx_queue[queue];
 	bdp = rxq->bd.base;
 	for (i = 0; i < rxq->bd.ring_size; i++) {
-		skb = netdev_alloc_skb(ndev, FEC_ENET_RX_FRSIZE);
+		skb = __netdev_alloc_skb(ndev, FEC_ENET_RX_FRSIZE, GFP_KERNEL);
 		if (!skb)
 			goto err_alloc;