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-rw-r--r--include/linux/netdevice.h1
-rw-r--r--net/core/dev.c10
-rw-r--r--net/ipv4/af_inet.c36
-rw-r--r--net/ipv4/gre_offload.c11
-rw-r--r--net/ipv4/tcp_offload.c6
-rw-r--r--net/ipv4/udp_offload.c6
-rw-r--r--net/ipv6/ip6_offload.c27
-rw-r--r--net/ipv6/tcpv6_offload.c6
-rw-r--r--net/ipv6/udp_offload.c6
-rw-r--r--net/mpls/mpls_gso.c7
10 files changed, 3 insertions, 113 deletions
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 4354b4307e37..9f5d293a0281 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -1911,7 +1911,6 @@ struct packet_type {
struct offload_callbacks {
struct sk_buff *(*gso_segment)(struct sk_buff *skb,
netdev_features_t features);
- int (*gso_send_check)(struct sk_buff *skb);
struct sk_buff **(*gro_receive)(struct sk_buff **head,
struct sk_buff *skb);
int (*gro_complete)(struct sk_buff *skb, int nhoff);
diff --git a/net/core/dev.c b/net/core/dev.c
index db0388607329..e2ced01c01e4 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -2422,16 +2422,6 @@ struct sk_buff *skb_mac_gso_segment(struct sk_buff *skb,
rcu_read_lock();
list_for_each_entry_rcu(ptype, &offload_base, list) {
if (ptype->type == type && ptype->callbacks.gso_segment) {
- if (unlikely(skb->ip_summed != CHECKSUM_PARTIAL)) {
- int err;
-
- err = ptype->callbacks.gso_send_check(skb);
- segs = ERR_PTR(err);
- if (err || skb_gso_ok(skb, features))
- break;
- __skb_push(skb, (skb->data -
- skb_network_header(skb)));
- }
segs = ptype->callbacks.gso_segment(skb, features);
break;
}
diff --git a/net/ipv4/af_inet.c b/net/ipv4/af_inet.c
index 72011cc4c13b..28e589c5f32d 100644
--- a/net/ipv4/af_inet.c
+++ b/net/ipv4/af_inet.c
@@ -1197,40 +1197,6 @@ int inet_sk_rebuild_header(struct sock *sk)
}
EXPORT_SYMBOL(inet_sk_rebuild_header);
-static int inet_gso_send_check(struct sk_buff *skb)
-{
- const struct net_offload *ops;
- const struct iphdr *iph;
- int proto;
- int ihl;
- int err = -EINVAL;
-
- if (unlikely(!pskb_may_pull(skb, sizeof(*iph))))
- goto out;
-
- iph = ip_hdr(skb);
- ihl = iph->ihl * 4;
- if (ihl < sizeof(*iph))
- goto out;
-
- proto = iph->protocol;
-
- /* Warning: after this point, iph might be no longer valid */
- if (unlikely(!pskb_may_pull(skb, ihl)))
- goto out;
- __skb_pull(skb, ihl);
-
- skb_reset_transport_header(skb);
- err = -EPROTONOSUPPORT;
-
- ops = rcu_dereference(inet_offloads[proto]);
- if (likely(ops && ops->callbacks.gso_send_check))
- err = ops->callbacks.gso_send_check(skb);
-
-out:
- return err;
-}
-
static struct sk_buff *inet_gso_segment(struct sk_buff *skb,
netdev_features_t features)
{
@@ -1655,7 +1621,6 @@ static int ipv4_proc_init(void);
static struct packet_offload ip_packet_offload __read_mostly = {
.type = cpu_to_be16(ETH_P_IP),
.callbacks = {
- .gso_send_check = inet_gso_send_check,
.gso_segment = inet_gso_segment,
.gro_receive = inet_gro_receive,
.gro_complete = inet_gro_complete,
@@ -1664,7 +1629,6 @@ static struct packet_offload ip_packet_offload __read_mostly = {
static const struct net_offload ipip_offload = {
.callbacks = {
- .gso_send_check = inet_gso_send_check,
.gso_segment = inet_gso_segment,
.gro_receive = inet_gro_receive,
.gro_complete = inet_gro_complete,
diff --git a/net/ipv4/gre_offload.c b/net/ipv4/gre_offload.c
index d3fe2ac05167..a77729503071 100644
--- a/net/ipv4/gre_offload.c
+++ b/net/ipv4/gre_offload.c
@@ -15,13 +15,6 @@
#include <net/protocol.h>
#include <net/gre.h>
-static int gre_gso_send_check(struct sk_buff *skb)
-{
- if (!skb->encapsulation)
- return -EINVAL;
- return 0;
-}
-
static struct sk_buff *gre_gso_segment(struct sk_buff *skb,
netdev_features_t features)
{
@@ -46,6 +39,9 @@ static struct sk_buff *gre_gso_segment(struct sk_buff *skb,
SKB_GSO_IPIP)))
goto out;
+ if (!skb->encapsulation)
+ goto out;
+
if (unlikely(!pskb_may_pull(skb, sizeof(*greh))))
goto out;
@@ -256,7 +252,6 @@ static int gre_gro_complete(struct sk_buff *skb, int nhoff)
static const struct net_offload gre_offload = {
.callbacks = {
- .gso_send_check = gre_gso_send_check,
.gso_segment = gre_gso_segment,
.gro_receive = gre_gro_receive,
.gro_complete = gre_gro_complete,
diff --git a/net/ipv4/tcp_offload.c b/net/ipv4/tcp_offload.c
index 7cd12b0458ff..5b90f2f447a5 100644
--- a/net/ipv4/tcp_offload.c
+++ b/net/ipv4/tcp_offload.c
@@ -288,11 +288,6 @@ int tcp_gro_complete(struct sk_buff *skb)
}
EXPORT_SYMBOL(tcp_gro_complete);
-static int tcp_v4_gso_send_check(struct sk_buff *skb)
-{
- return 0;
-}
-
static struct sk_buff **tcp4_gro_receive(struct sk_buff **head, struct sk_buff *skb)
{
/* Don't bother verifying checksum if we're going to flush anyway. */
@@ -320,7 +315,6 @@ static int tcp4_gro_complete(struct sk_buff *skb, int thoff)
static const struct net_offload tcpv4_offload = {
.callbacks = {
- .gso_send_check = tcp_v4_gso_send_check,
.gso_segment = tcp4_gso_segment,
.gro_receive = tcp4_gro_receive,
.gro_complete = tcp4_gro_complete,
diff --git a/net/ipv4/udp_offload.c b/net/ipv4/udp_offload.c
index 2918cc914824..19ebe6a39ddc 100644
--- a/net/ipv4/udp_offload.c
+++ b/net/ipv4/udp_offload.c
@@ -25,11 +25,6 @@ struct udp_offload_priv {
struct udp_offload_priv __rcu *next;
};
-static int udp4_ufo_send_check(struct sk_buff *skb)
-{
- return 0;
-}
-
struct sk_buff *skb_udp_tunnel_segment(struct sk_buff *skb,
netdev_features_t features)
{
@@ -346,7 +341,6 @@ static int udp4_gro_complete(struct sk_buff *skb, int nhoff)
static const struct net_offload udpv4_offload = {
.callbacks = {
- .gso_send_check = udp4_ufo_send_check,
.gso_segment = udp4_ufo_fragment,
.gro_receive = udp4_gro_receive,
.gro_complete = udp4_gro_complete,
diff --git a/net/ipv6/ip6_offload.c b/net/ipv6/ip6_offload.c
index 9952f3fce30a..9034f76ae013 100644
--- a/net/ipv6/ip6_offload.c
+++ b/net/ipv6/ip6_offload.c
@@ -53,31 +53,6 @@ static int ipv6_gso_pull_exthdrs(struct sk_buff *skb, int proto)
return proto;
}
-static int ipv6_gso_send_check(struct sk_buff *skb)
-{
- const struct ipv6hdr *ipv6h;
- const struct net_offload *ops;
- int err = -EINVAL;
-
- if (unlikely(!pskb_may_pull(skb, sizeof(*ipv6h))))
- goto out;
-
- ipv6h = ipv6_hdr(skb);
- __skb_pull(skb, sizeof(*ipv6h));
- err = -EPROTONOSUPPORT;
-
- ops = rcu_dereference(inet6_offloads[
- ipv6_gso_pull_exthdrs(skb, ipv6h->nexthdr)]);
-
- if (likely(ops && ops->callbacks.gso_send_check)) {
- skb_reset_transport_header(skb);
- err = ops->callbacks.gso_send_check(skb);
- }
-
-out:
- return err;
-}
-
static struct sk_buff *ipv6_gso_segment(struct sk_buff *skb,
netdev_features_t features)
{
@@ -306,7 +281,6 @@ out_unlock:
static struct packet_offload ipv6_packet_offload __read_mostly = {
.type = cpu_to_be16(ETH_P_IPV6),
.callbacks = {
- .gso_send_check = ipv6_gso_send_check,
.gso_segment = ipv6_gso_segment,
.gro_receive = ipv6_gro_receive,
.gro_complete = ipv6_gro_complete,
@@ -315,7 +289,6 @@ static struct packet_offload ipv6_packet_offload __read_mostly = {
static const struct net_offload sit_offload = {
.callbacks = {
- .gso_send_check = ipv6_gso_send_check,
.gso_segment = ipv6_gso_segment,
.gro_receive = ipv6_gro_receive,
.gro_complete = ipv6_gro_complete,
diff --git a/net/ipv6/tcpv6_offload.c b/net/ipv6/tcpv6_offload.c
index 96253154db3a..c1ab77105b4c 100644
--- a/net/ipv6/tcpv6_offload.c
+++ b/net/ipv6/tcpv6_offload.c
@@ -15,11 +15,6 @@
#include <net/ip6_checksum.h>
#include "ip6_offload.h"
-static int tcp_v6_gso_send_check(struct sk_buff *skb)
-{
- return 0;
-}
-
static struct sk_buff **tcp6_gro_receive(struct sk_buff **head,
struct sk_buff *skb)
{
@@ -71,7 +66,6 @@ struct sk_buff *tcp6_gso_segment(struct sk_buff *skb,
}
static const struct net_offload tcpv6_offload = {
.callbacks = {
- .gso_send_check = tcp_v6_gso_send_check,
.gso_segment = tcp6_gso_segment,
.gro_receive = tcp6_gro_receive,
.gro_complete = tcp6_gro_complete,
diff --git a/net/ipv6/udp_offload.c b/net/ipv6/udp_offload.c
index e4af6437ea3b..212ebfc7973f 100644
--- a/net/ipv6/udp_offload.c
+++ b/net/ipv6/udp_offload.c
@@ -17,11 +17,6 @@
#include <net/ip6_checksum.h>
#include "ip6_offload.h"
-static int udp6_ufo_send_check(struct sk_buff *skb)
-{
- return 0;
-}
-
static struct sk_buff *udp6_ufo_fragment(struct sk_buff *skb,
netdev_features_t features)
{
@@ -166,7 +161,6 @@ static int udp6_gro_complete(struct sk_buff *skb, int nhoff)
static const struct net_offload udpv6_offload = {
.callbacks = {
- .gso_send_check = udp6_ufo_send_check,
.gso_segment = udp6_ufo_fragment,
.gro_receive = udp6_gro_receive,
.gro_complete = udp6_gro_complete,
diff --git a/net/mpls/mpls_gso.c b/net/mpls/mpls_gso.c
index 6b38d083e1c9..e28ed2ef5b06 100644
--- a/net/mpls/mpls_gso.c
+++ b/net/mpls/mpls_gso.c
@@ -65,15 +65,9 @@ out:
return segs;
}
-static int mpls_gso_send_check(struct sk_buff *skb)
-{
- return 0;
-}
-
static struct packet_offload mpls_mc_offload = {
.type = cpu_to_be16(ETH_P_MPLS_MC),
.callbacks = {
- .gso_send_check = mpls_gso_send_check,
.gso_segment = mpls_gso_segment,
},
};
@@ -81,7 +75,6 @@ static struct packet_offload mpls_mc_offload = {
static struct packet_offload mpls_uc_offload = {
.type = cpu_to_be16(ETH_P_MPLS_UC),
.callbacks = {
- .gso_send_check = mpls_gso_send_check,
.gso_segment = mpls_gso_segment,
},
};
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.