X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=net%2Fipv6%2Fipcomp6.c;h=e3dcfa2f436bade207d6b03711868cd30f5531bf;hb=6f58d79598c184dc4f18ceddfaa5fa7483bce0a5;hp=b276d04d6db52ea7dc2c1529d3351cc5a6e5b0aa;hpb=3b470ac43fcd9848fa65e58e54875ad75be61cec;p=linux-2.6

diff --git a/net/ipv6/ipcomp6.c b/net/ipv6/ipcomp6.c
index b276d04d6d..e3dcfa2f43 100644
--- a/net/ipv6/ipcomp6.c
+++ b/net/ipv6/ipcomp6.c
@@ -64,6 +64,7 @@ static LIST_HEAD(ipcomp6_tfms_list);
 
 static int ipcomp6_input(struct xfrm_state *x, struct sk_buff *skb)
 {
+	int nexthdr;
 	int err = -ENOMEM;
 	struct ip_comp_hdr *ipch;
 	int plen, dlen;
@@ -79,6 +80,8 @@ static int ipcomp6_input(struct xfrm_state *x, struct sk_buff *skb)
 
 	/* Remove ipcomp header and decompress original payload */
 	ipch = (void *)skb->data;
+	nexthdr = ipch->nexthdr;
+
 	skb->transport_header = skb->network_header + sizeof(*ipch);
 	__skb_pull(skb, sizeof(*ipch));
 
@@ -108,7 +111,7 @@ static int ipcomp6_input(struct xfrm_state *x, struct sk_buff *skb)
 	skb->truesize += dlen - plen;
 	__skb_put(skb, dlen - plen);
 	skb_copy_to_linear_data(skb, scratch, dlen);
-	err = ipch->nexthdr;
+	err = nexthdr;
 
 out_put_cpu:
 	put_cpu();
@@ -143,7 +146,9 @@ static int ipcomp6_output(struct xfrm_state *x, struct sk_buff *skb)
 	scratch = *per_cpu_ptr(ipcomp6_scratches, cpu);
 	tfm = *per_cpu_ptr(ipcd->tfms, cpu);
 
+	local_bh_disable();
 	err = crypto_comp_compress(tfm, start, plen, scratch, &dlen);
+	local_bh_enable();
 	if (err || (dlen + sizeof(*ipch)) >= plen) {
 		put_cpu();
 		goto out_ok;
@@ -450,7 +455,7 @@ error:
 	goto out;
 }
 
-static struct xfrm_type ipcomp6_type =
+static const struct xfrm_type ipcomp6_type =
 {
 	.description	= "IPCOMP6",
 	.owner		= THIS_MODULE,