diff options
Diffstat (limited to 'net/core/lwt_bpf.c')
| -rw-r--r-- | net/core/lwt_bpf.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/net/core/lwt_bpf.c b/net/core/lwt_bpf.c index 2f7940bcf715..8b6b5e72b217 100644 --- a/net/core/lwt_bpf.c +++ b/net/core/lwt_bpf.c @@ -2,6 +2,7 @@ /* Copyright (c) 2016 Thomas Graf <tgraf@tgraf.ch> */ +#include <linux/filter.h> #include <linux/kernel.h> #include <linux/module.h> #include <linux/skbuff.h> @@ -158,10 +159,8 @@ static int bpf_output(struct net *net, struct sock *sk, struct sk_buff *skb) return dst->lwtstate->orig_output(net, sk, skb); } -static int xmit_check_hhlen(struct sk_buff *skb) +static int xmit_check_hhlen(struct sk_buff *skb, int hh_len) { - int hh_len = skb_dst(skb)->dev->hard_header_len; - if (skb_headroom(skb) < hh_len) { int nhead = HH_DATA_ALIGN(hh_len - skb_headroom(skb)); @@ -273,6 +272,7 @@ static int bpf_xmit(struct sk_buff *skb) bpf = bpf_lwt_lwtunnel(dst->lwtstate); if (bpf->xmit.prog) { + int hh_len = dst->dev->hard_header_len; __be16 proto = skb->protocol; int ret; @@ -290,7 +290,7 @@ static int bpf_xmit(struct sk_buff *skb) /* If the header was expanded, headroom might be too * small for L2 header to come, expand as needed. */ - ret = xmit_check_hhlen(skb); + ret = xmit_check_hhlen(skb, hh_len); if (unlikely(ret)) return ret; |