diff options
| author | David Ahern <dsahern@kernel.org> | 2022-01-24 19:45:11 -0700 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2022-01-25 14:44:55 -0800 |
| commit | ab14f1802cfb2d7ca120bbf48e3ba6712314ffc3 (patch) | |
| tree | c96c04a12016c292bf82db5bb5efc40b58b20786 /net/core | |
| parent | 6b0671a23dd6cc949d12fa8d65171856159cd17b (diff) | |
| download | linux-ab14f1802cfb2d7ca120bbf48e3ba6712314ffc3.tar.bz2 | |
net: Adjust sk_gso_max_size once when set
sk_gso_max_size is set based on the dst dev. Both users of it
adjust the value by the same offset - (MAX_TCP_HEADER + 1). Rather
than compute the same adjusted value on each call do the adjustment
once when set.
Signed-off-by: David Ahern <dsahern@kernel.org>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Link: https://lore.kernel.org/r/20220125024511.27480-1-dsahern@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'net/core')
| -rw-r--r-- | net/core/sock.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/net/core/sock.c b/net/core/sock.c index 4ff806d71921..cccf21f3618d 100644 --- a/net/core/sock.c +++ b/net/core/sock.c @@ -2266,6 +2266,7 @@ void sk_setup_caps(struct sock *sk, struct dst_entry *dst) sk->sk_route_caps |= NETIF_F_SG | NETIF_F_HW_CSUM; /* pairs with the WRITE_ONCE() in netif_set_gso_max_size() */ sk->sk_gso_max_size = READ_ONCE(dst->dev->gso_max_size); + sk->sk_gso_max_size -= (MAX_TCP_HEADER + 1); /* pairs with the WRITE_ONCE() in netif_set_gso_max_segs() */ max_segs = max_t(u32, READ_ONCE(dst->dev->gso_max_segs), 1); } |