tcp: remove sk_check_csum_caps()
Since TCP relies on GSO, we do not need this helper anymore.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index 6f35c12..7c41402 100644
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -1063,8 +1063,7 @@ EXPORT_SYMBOL_GPL(do_tcp_sendpages);
int tcp_sendpage_locked(struct sock *sk, struct page *page, int offset,
size_t size, int flags)
{
- if (!(sk->sk_route_caps & NETIF_F_SG) ||
- !sk_check_csum_caps(sk))
+ if (!(sk->sk_route_caps & NETIF_F_SG))
return sock_no_sendpage_locked(sk, page, offset, size, flags);
tcp_rate_check_app_limited(sk); /* is sending application-limited? */
@@ -1190,7 +1189,7 @@ int tcp_sendmsg_locked(struct sock *sk, struct msghdr *msg, size_t size)
goto out_err;
}
- zc = sk_check_csum_caps(sk) && sk->sk_route_caps & NETIF_F_SG;
+ zc = sk->sk_route_caps & NETIF_F_SG;
if (!zc)
uarg->zerocopy = 0;
}
@@ -1287,11 +1286,7 @@ int tcp_sendmsg_locked(struct sock *sk, struct msghdr *msg, size_t size)
goto wait_for_memory;
process_backlog = true;
- /*
- * Check whether we can use HW checksum.
- */
- if (sk_check_csum_caps(sk))
- skb->ip_summed = CHECKSUM_PARTIAL;
+ skb->ip_summed = CHECKSUM_PARTIAL;
skb_entail(sk, skb);
copy = size_goal;