net: Add export.h for EXPORT_SYMBOL/THIS_MODULE to non-modules

[mirror_ubuntu-eoan-kernel.git] / net / ipv4 / xfrm4_state.c

diff --git a/net/ipv4/xfrm4_state.c b/net/ipv4/xfrm4_state.c
index 805d63ef4340fae1176ee8c2c0be0e24d1b60ef6..9258e751babaa1b9bfd954e6da771a0a80071a1b 100644 (file)
--- a/net/ipv4/xfrm4_state.c
+++ b/net/ipv4/xfrm4_state.c
@@ -12,6 +12,7 @@
 #include <linux/pfkeyv2.h>
 #include <linux/ipsec.h>
 #include <linux/netfilter_ipv4.h>
+#include <linux/export.h>
 
 static int xfrm4_init_flags(struct xfrm_state *x)
 {
@@ -55,7 +56,7 @@ xfrm4_init_temprop(struct xfrm_state *x, const struct xfrm_tmpl *tmpl,
 
 int xfrm4_extract_header(struct sk_buff *skb)
 {
-       struct iphdr *iph = ip_hdr(skb);
+       const struct iphdr *iph = ip_hdr(skb);
 
        XFRM_MODE_SKB_CB(skb)->ihl = sizeof(*iph);
        XFRM_MODE_SKB_CB(skb)->id = iph->id;