This patch converts references of skb->network_header to napi_gro_cb's
network_offset and inner_network_offset.
Signed-off-by: Richard Gobert <richardbgobert@xxxxxxxxx>
---
include/net/gro.h | 9 +++++++--
net/ipv4/af_inet.c | 4 ----
net/ipv4/tcp_offload.c | 3 ++-
net/ipv6/ip6_offload.c | 5 ++---
net/ipv6/tcpv6_offload.c | 3 ++-
5 files changed, 13 insertions(+), 11 deletions(-)
diff --git a/include/net/gro.h b/include/net/gro.h
index c1d4ca0463a1..3dafa0f31ae1 100644
--- a/include/net/gro.h
+++ b/include/net/gro.h
@@ -181,12 +181,17 @@ static inline void *skb_gro_header(struct sk_buff *skb, unsigned int hlen,
return ptr;
}
+static inline int skb_gro_receive_network_offset(const struct sk_buff *skb)
+{
+ return NAPI_GRO_CB(skb)->network_offsets[NAPI_GRO_CB(skb)->encap_mark];
+}
+
static inline void *skb_gro_network_header(const struct sk_buff *skb)
{
if (skb_gro_may_pull(skb, skb_gro_offset(skb)))
- return skb_gro_header_fast(skb, skb_network_offset(skb));
+ return skb_gro_header_fast(skb, skb_gro_receive_network_offset(skb));
- return skb_network_header(skb);
+ return skb->data + skb_gro_receive_network_offset(skb);
}
static inline __wsum inet_gro_compute_pseudo(const struct sk_buff *skb,
diff --git a/net/ipv4/af_inet.c b/net/ipv4/af_inet.c
index a7bad18bc8b5..428196e1541f 100644
--- a/net/ipv4/af_inet.c
+++ b/net/ipv4/af_inet.c
@@ -1569,10 +1569,6 @@ struct sk_buff *inet_gro_receive(struct list_head *head, struct sk_buff *skb)
NAPI_GRO_CB(skb)->is_atomic = !!(iph->frag_off & htons(IP_DF));
NAPI_GRO_CB(skb)->flush |= flush;
- skb_set_network_header(skb, off);
- /* The above will be needed by the transport layer if there is one
- * immediately following this IP hdr.
- */
NAPI_GRO_CB(skb)->inner_network_offset = off;
/* Note : No need to call skb_gro_postpull_rcsum() here,
diff --git a/net/ipv4/tcp_offload.c b/net/ipv4/tcp_offload.c
index fab0973f995b..b70ae50e658d 100644
--- a/net/ipv4/tcp_offload.c
+++ b/net/ipv4/tcp_offload.c
@@ -330,7 +330,8 @@ struct sk_buff *tcp4_gro_receive(struct list_head *head, struct sk_buff *skb)
INDIRECT_CALLABLE_SCOPE int tcp4_gro_complete(struct sk_buff *skb, int thoff)
{
- const struct iphdr *iph = ip_hdr(skb);
+ const u16 offset = NAPI_GRO_CB(skb)->network_offsets[skb->encapsulation];
+ const struct iphdr *iph = (struct iphdr *)(skb->data + offset);
struct tcphdr *th = tcp_hdr(skb);
th->check = ~tcp_v4_check(skb->len - thoff, iph->saddr,
diff --git a/net/ipv6/ip6_offload.c b/net/ipv6/ip6_offload.c
index c8b909a9904f..288c7c6ea50f 100644
--- a/net/ipv6/ip6_offload.c
+++ b/net/ipv6/ip6_offload.c
@@ -67,7 +67,7 @@ static int ipv6_gro_pull_exthdrs(struct sk_buff *skb, int off, int proto)
off += len;
}
- skb_gro_pull(skb, off - skb_network_offset(skb));
+ skb_gro_pull(skb, off - skb_gro_receive_network_offset(skb));
return proto;
}
@@ -236,7 +236,6 @@ INDIRECT_CALLABLE_SCOPE struct sk_buff *ipv6_gro_receive(struct list_head *head,
if (unlikely(!iph))
goto out;
- skb_set_network_header(skb, off);
NAPI_GRO_CB(skb)->inner_network_offset = off;
flush += ntohs(iph->payload_len) != skb->len - hlen;
@@ -260,7 +259,7 @@ INDIRECT_CALLABLE_SCOPE struct sk_buff *ipv6_gro_receive(struct list_head *head,
NAPI_GRO_CB(skb)->proto = proto;
flush--;
- nlen = skb_network_header_len(skb);
+ nlen = skb_gro_offset(skb) - off;
list_for_each_entry(p, head, list) {
const struct ipv6hdr *iph2;
diff --git a/net/ipv6/tcpv6_offload.c b/net/ipv6/tcpv6_offload.c
index 4b07d1e6c952..e70d60e0f86f 100644
--- a/net/ipv6/tcpv6_offload.c
+++ b/net/ipv6/tcpv6_offload.c
@@ -29,7 +29,8 @@ struct sk_buff *tcp6_gro_receive(struct list_head *head, struct sk_buff *skb)
INDIRECT_CALLABLE_SCOPE int tcp6_gro_complete(struct sk_buff *skb, int thoff)
{
- const struct ipv6hdr *iph = ipv6_hdr(skb);
+ const u16 offset = NAPI_GRO_CB(skb)->network_offsets[skb->encapsulation];
+ const struct ipv6hdr *iph = (struct ipv6hdr *)(skb->data + offset);
struct tcphdr *th = tcp_hdr(skb);
th->check = ~tcp_v6_check(skb->len - thoff, &iph->saddr,
--
2.36.1
