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Diffstat (limited to 'net/ipv6/exthdrs_core.c')
-rw-r--r--net/ipv6/exthdrs_core.c11
1 files changed, 4 insertions, 7 deletions
diff --git a/net/ipv6/exthdrs_core.c b/net/ipv6/exthdrs_core.c
index 6dda815c013..315bc1fbec3 100644
--- a/net/ipv6/exthdrs_core.c
+++ b/net/ipv6/exthdrs_core.c
@@ -41,8 +41,8 @@ int ipv6_ext_hdr(u8 nexthdr)
* when Linux implements ESP (and maybe AUTH) headers.
* --AK
*
- * This function parses (probably truncated) exthdr set "hdr"
- * of length "len". "nexthdrp" initially points to some place,
+ * This function parses (probably truncated) exthdr set "hdr".
+ * "nexthdrp" initially points to some place,
* where type of the first header can be found.
*
* It skips all well-known exthdrs, and returns pointer to the start
@@ -63,7 +63,7 @@ int ipv6_ext_hdr(u8 nexthdr)
* --ANK (980726)
*/
-int ipv6_skip_exthdr(const struct sk_buff *skb, int start, u8 *nexthdrp, int len)
+int ipv6_skip_exthdr(const struct sk_buff *skb, int start, u8 *nexthdrp)
{
u8 nexthdr = *nexthdrp;
@@ -71,13 +71,11 @@ int ipv6_skip_exthdr(const struct sk_buff *skb, int start, u8 *nexthdrp, int len
struct ipv6_opt_hdr _hdr, *hp;
int hdrlen;
- if (len < (int)sizeof(struct ipv6_opt_hdr))
- return -1;
if (nexthdr == NEXTHDR_NONE)
return -1;
hp = skb_header_pointer(skb, start, sizeof(_hdr), &_hdr);
if (hp == NULL)
- BUG();
+ return -1;
if (nexthdr == NEXTHDR_FRAGMENT) {
unsigned short _frag_off, *fp;
fp = skb_header_pointer(skb,
@@ -97,7 +95,6 @@ int ipv6_skip_exthdr(const struct sk_buff *skb, int start, u8 *nexthdrp, int len
hdrlen = ipv6_optlen(hp);
nexthdr = hp->nexthdr;
- len -= hdrlen;
start += hdrlen;
}