net: Convert uses of __constant_<foo> to <foo>

The use of __constant_<foo> has been unnecessary for quite awhile now.

Make these uses consistent with the rest of the kernel.
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

net/core/dev.c

@@ -3495,11 +3495,11 @@ EXPORT_SYMBOL_GPL(netdev_rx_handler_unregister);
 static bool skb_pfmemalloc_protocol(struct sk_buff *skb)
 {
 	switch (skb->protocol) {
-	case __constant_htons(ETH_P_ARP):
-	case __constant_htons(ETH_P_IP):
-	case __constant_htons(ETH_P_IPV6):
-	case __constant_htons(ETH_P_8021Q):
-	case __constant_htons(ETH_P_8021AD):
+	case htons(ETH_P_ARP):
+	case htons(ETH_P_IP):
+	case htons(ETH_P_IPV6):
+	case htons(ETH_P_8021Q):
+	case htons(ETH_P_8021AD):
 		return true;
 	default:
 		return false;

net/core/flow_dissector.c

@@ -61,7 +61,7 @@ bool skb_flow_dissect(const struct sk_buff *skb, struct flow_keys *flow)
 
 again:
 	switch (proto) {
-	case __constant_htons(ETH_P_IP): {
+	case htons(ETH_P_IP): {
 		const struct iphdr *iph;
 		struct iphdr _iph;
 ip:
@@ -77,7 +77,7 @@ bool skb_flow_dissect(const struct sk_buff *skb, struct flow_keys *flow)
 		iph_to_flow_copy_addrs(flow, iph);
 		break;
 	}
-	case __constant_htons(ETH_P_IPV6): {
+	case htons(ETH_P_IPV6): {
 		const struct ipv6hdr *iph;
 		struct ipv6hdr _iph;
 ipv6:
@@ -91,8 +91,8 @@ bool skb_flow_dissect(const struct sk_buff *skb, struct flow_keys *flow)
 		nhoff += sizeof(struct ipv6hdr);
 		break;
 	}
-	case __constant_htons(ETH_P_8021AD):
-	case __constant_htons(ETH_P_8021Q): {
+	case htons(ETH_P_8021AD):
+	case htons(ETH_P_8021Q): {
 		const struct vlan_hdr *vlan;
 		struct vlan_hdr _vlan;
 
@@ -104,7 +104,7 @@ bool skb_flow_dissect(const struct sk_buff *skb, struct flow_keys *flow)
 		nhoff += sizeof(*vlan);
 		goto again;
 	}
-	case __constant_htons(ETH_P_PPP_SES): {
+	case htons(ETH_P_PPP_SES): {
 		struct {
 			struct pppoe_hdr hdr;
 			__be16 proto;
@@ -115,9 +115,9 @@ bool skb_flow_dissect(const struct sk_buff *skb, struct flow_keys *flow)
 		proto = hdr->proto;
 		nhoff += PPPOE_SES_HLEN;
 		switch (proto) {
-		case __constant_htons(PPP_IP):
+		case htons(PPP_IP):
 			goto ip;
-		case __constant_htons(PPP_IPV6):
+		case htons(PPP_IPV6):
 			goto ipv6;
 		default:
 			return false;