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authorPaolo Abeni <pabeni@redhat.com>2018-12-14 11:51:59 +0100
committerDavid S. Miller <davem@davemloft.net>2018-12-15 22:23:02 +0100
commit028e0a4766844e7eeb31b93479ea6dd40cfc2895 (patch)
tree4a2e159b4ddfe4548de2b003bae3ca7d15f6a11b /net/ipv6/udp_offload.c
parentnet: use indirect call wrappers at GRO network layer (diff)
downloadlinux-028e0a4766844e7eeb31b93479ea6dd40cfc2895.tar.xz
linux-028e0a4766844e7eeb31b93479ea6dd40cfc2895.zip
net: use indirect call wrappers at GRO transport layer
This avoids an indirect call in the receive path for TCP and UDP packets. TCP takes precedence on UDP, so that we have a single additional conditional in the common case. When IPV6 is build as module, all gro symbols except UDPv6 are builtin, while the latter belong to the ipv6 module, so we need some special care. v1 -> v2: - adapted to INDIRECT_CALL_ changes v2 -> v3: - fix build issue with CONFIG_IPV6=m Signed-off-by: Paolo Abeni <pabeni@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to '')
-rw-r--r--net/ipv6/udp_offload.c7
1 files changed, 4 insertions, 3 deletions
diff --git a/net/ipv6/udp_offload.c b/net/ipv6/udp_offload.c
index 828b2457f97b..83b11d0ac091 100644
--- a/net/ipv6/udp_offload.c
+++ b/net/ipv6/udp_offload.c
@@ -11,6 +11,7 @@
*/
#include <linux/skbuff.h>
#include <linux/netdevice.h>
+#include <linux/indirect_call_wrapper.h>
#include <net/protocol.h>
#include <net/ipv6.h>
#include <net/udp.h>
@@ -114,8 +115,8 @@ out:
return segs;
}
-static struct sk_buff *udp6_gro_receive(struct list_head *head,
- struct sk_buff *skb)
+INDIRECT_CALLABLE_SCOPE
+struct sk_buff *udp6_gro_receive(struct list_head *head, struct sk_buff *skb)
{
struct udphdr *uh = udp_gro_udphdr(skb);
@@ -142,7 +143,7 @@ flush:
return NULL;
}
-static int udp6_gro_complete(struct sk_buff *skb, int nhoff)
+INDIRECT_CALLABLE_SCOPE int udp6_gro_complete(struct sk_buff *skb, int nhoff)
{
const struct ipv6hdr *ipv6h = ipv6_hdr(skb);
struct udphdr *uh = (struct udphdr *)(skb->data + nhoff);