net: stmmac: selftests: Make it work in Synopsys AXS101 boards

Synopsys AXS101 boards do not support unaligned memory loads or stores.
Change the selftests mechanism to explicity:
- Not add extra alignment in TX SKB
- Use the unaligned version of ether_addr_equal()

Fixes: 091810db ("net: stmmac: Introduce selftests support")
Signed-off-by: Jose Abreu <Jose.Abreu@synopsys.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/stmicro/stmmac/stmmac_selftests.c

@@ -80,7 +80,7 @@ static struct sk_buff *stmmac_test_get_udp_skb(struct stmmac_priv *priv,
 	if (attr->max_size && (attr->max_size > size))
 		size = attr->max_size;
 
-	skb = netdev_alloc_skb_ip_align(priv->dev, size);
+	skb = netdev_alloc_skb(priv->dev, size);
 	if (!skb)
 		return NULL;
 
@@ -244,6 +244,8 @@ static int stmmac_test_loopback_validate(struct sk_buff *skb,
 					 struct net_device *orig_ndev)
 {
 	struct stmmac_test_priv *tpriv = pt->af_packet_priv;
+	unsigned char *src = tpriv->packet->src;
+	unsigned char *dst = tpriv->packet->dst;
 	struct stmmachdr *shdr;
 	struct ethhdr *ehdr;
 	struct udphdr *uhdr;
@@ -260,15 +262,15 @@ static int stmmac_test_loopback_validate(struct sk_buff *skb,
 		goto out;
 
 	ehdr = (struct ethhdr *)skb_mac_header(skb);
-	if (tpriv->packet->dst) {
-		if (!ether_addr_equal(ehdr->h_dest, tpriv->packet->dst))
+	if (dst) {
+		if (!ether_addr_equal_unaligned(ehdr->h_dest, dst))
 			goto out;
 	}
 	if (tpriv->packet->sarc) {
-		if (!ether_addr_equal(ehdr->h_source, ehdr->h_dest))
+		if (!ether_addr_equal_unaligned(ehdr->h_source, ehdr->h_dest))
 			goto out;
-	} else if (tpriv->packet->src) {
-		if (!ether_addr_equal(ehdr->h_source, tpriv->packet->src))
+	} else if (src) {
+		if (!ether_addr_equal_unaligned(ehdr->h_source, src))
 			goto out;
 	}
 
@@ -714,7 +716,7 @@ static int stmmac_test_flowctrl_validate(struct sk_buff *skb,
 	struct ethhdr *ehdr;
 
 	ehdr = (struct ethhdr *)skb_mac_header(skb);
-	if (!ether_addr_equal(ehdr->h_source, orig_ndev->dev_addr))
+	if (!ether_addr_equal_unaligned(ehdr->h_source, orig_ndev->dev_addr))
 		goto out;
 	if (ehdr->h_proto != htons(ETH_P_PAUSE))
 		goto out;
@@ -856,7 +858,7 @@ static int stmmac_test_vlan_validate(struct sk_buff *skb,
 	}
 
 	ehdr = (struct ethhdr *)skb_mac_header(skb);
-	if (!ether_addr_equal(ehdr->h_dest, tpriv->packet->dst))
+	if (!ether_addr_equal_unaligned(ehdr->h_dest, tpriv->packet->dst))
 		goto out;
 
 	ihdr = ip_hdr(skb);
@@ -1586,7 +1588,7 @@ static int stmmac_test_arp_validate(struct sk_buff *skb,
 	struct arphdr *ahdr;
 
 	ehdr = (struct ethhdr *)skb_mac_header(skb);
-	if (!ether_addr_equal(ehdr->h_dest, tpriv->packet->src))
+	if (!ether_addr_equal_unaligned(ehdr->h_dest, tpriv->packet->src))
 		goto out;
 
 	ahdr = arp_hdr(skb);