diff options
| author | Florian Westphal <fw@strlen.de> | 2018-12-18 17:15:26 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2018-12-19 11:21:38 -0800 |
| commit | a84e3f533324e40e4a99f50dee2188bf140d8098 (patch) | |
| tree | 87609cfff448eacf1b18ae19f9f841d416abee2c /drivers | |
| parent | a053c866496d0c3647727f6a282a1db3afea3ed7 (diff) | |
| download | linux-rt-a84e3f533324e40e4a99f50dee2188bf140d8098.tar.gz | |
xfrm: prefer secpath_set over secpath_dup
secpath_set is a wrapper for secpath_dup that will not perform
an allocation if the secpath attached to the skb has a reference count
of one, i.e., it doesn't need to be COW'ed.
Also, secpath_dup doesn't attach the secpath to the skb, it leaves
this to the caller.
Use secpath_set in places that immediately assign the return value to
skb.
This allows to remove skb->sp without touching these spots again.
secpath_dup can eventually be removed in followup patch.
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/ethernet/intel/ixgbe/ixgbe_ipsec.c | 9 | ||||
| -rw-r--r-- | drivers/net/ethernet/intel/ixgbevf/ipsec.c | 9 | ||||
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec_rxtx.c | 10 |
3 files changed, 16 insertions, 12 deletions
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_ipsec.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_ipsec.c index 8befc7a50f8c..ff85ce5791a3 100644 --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_ipsec.c +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_ipsec.c @@ -1161,6 +1161,7 @@ void ixgbe_ipsec_rx(struct ixgbe_ring *rx_ring, struct xfrm_state *xs = NULL; struct ipv6hdr *ip6 = NULL; struct iphdr *ip4 = NULL; + struct sec_path *sp; void *daddr; __be32 spi; u8 *c_hdr; @@ -1200,12 +1201,12 @@ void ixgbe_ipsec_rx(struct ixgbe_ring *rx_ring, if (unlikely(!xs)) return; - skb->sp = secpath_dup(skb->sp); - if (unlikely(!skb->sp)) + sp = secpath_set(skb); + if (unlikely(!sp)) return; - skb->sp->xvec[skb->sp->len++] = xs; - skb->sp->olen++; + sp->xvec[sp->len++] = xs; + sp->olen++; xo = xfrm_offload(skb); xo->flags = CRYPTO_DONE; xo->status = CRYPTO_SUCCESS; diff --git a/drivers/net/ethernet/intel/ixgbevf/ipsec.c b/drivers/net/ethernet/intel/ixgbevf/ipsec.c index 07644e6bf498..5170dd9d8705 100644 --- a/drivers/net/ethernet/intel/ixgbevf/ipsec.c +++ b/drivers/net/ethernet/intel/ixgbevf/ipsec.c @@ -548,6 +548,7 @@ void ixgbevf_ipsec_rx(struct ixgbevf_ring *rx_ring, struct xfrm_state *xs = NULL; struct ipv6hdr *ip6 = NULL; struct iphdr *ip4 = NULL; + struct sec_path *sp; void *daddr; __be32 spi; u8 *c_hdr; @@ -587,12 +588,12 @@ void ixgbevf_ipsec_rx(struct ixgbevf_ring *rx_ring, if (unlikely(!xs)) return; - skb->sp = secpath_dup(skb->sp); - if (unlikely(!skb->sp)) + sp = secpath_set(skb); + if (unlikely(!sp)) return; - skb->sp->xvec[skb->sp->len++] = xs; - skb->sp->olen++; + sp->xvec[sp->len++] = xs; + sp->olen++; xo = xfrm_offload(skb); xo->flags = CRYPTO_DONE; xo->status = CRYPTO_SUCCESS; diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec_rxtx.c b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec_rxtx.c index f6717c287ff4..53608afd39b6 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec_rxtx.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec_rxtx.c @@ -307,10 +307,11 @@ mlx5e_ipsec_build_sp(struct net_device *netdev, struct sk_buff *skb, struct mlx5e_priv *priv = netdev_priv(netdev); struct xfrm_offload *xo; struct xfrm_state *xs; + struct sec_path *sp; u32 sa_handle; - skb->sp = secpath_dup(skb->sp); - if (unlikely(!skb->sp)) { + sp = secpath_set(skb); + if (unlikely(!sp)) { atomic64_inc(&priv->ipsec->sw_stats.ipsec_rx_drop_sp_alloc); return NULL; } @@ -322,8 +323,9 @@ mlx5e_ipsec_build_sp(struct net_device *netdev, struct sk_buff *skb, return NULL; } - skb->sp->xvec[skb->sp->len++] = xs; - skb->sp->olen++; + sp = skb_sec_path(skb); + sp->xvec[sp->len++] = xs; + sp->olen++; xo = xfrm_offload(skb); xo->flags = CRYPTO_DONE; |