ipv6: ipv6_select_ident() returns a __be32

ipv6_select_ident() returns a 32bit value in network order.

Fixes: 286c2349 ("ipv6: Clean up ipv6_select_ident() and ip6_fragment()")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Acked-by: Martin KaFai Lau <kafai@fb.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

include/net/ipv6.h

@@ -671,7 +671,7 @@ static inline int ipv6_addr_diff(const struct in6_addr *a1, const struct in6_add
 	return __ipv6_addr_diff(a1, a2, sizeof(struct in6_addr));
 }
 
-u32 ipv6_select_ident(struct net *net,
+__be32 ipv6_select_ident(struct net *net,
 			 const struct in6_addr *daddr,
 			 const struct in6_addr *saddr);
 void ipv6_proxy_select_ident(struct net *net, struct sk_buff *skb);

net/ipv6/output_core.c

@@ -61,7 +61,7 @@ void ipv6_proxy_select_ident(struct net *net, struct sk_buff *skb)
 }
 EXPORT_SYMBOL_GPL(ipv6_proxy_select_ident);
 
-u32 ipv6_select_ident(struct net *net,
+__be32 ipv6_select_ident(struct net *net,
 			 const struct in6_addr *daddr,
 			 const struct in6_addr *saddr)
 {