diff options
Diffstat (limited to 'net/dsa/tag_dsa.c')
| -rw-r--r-- | net/dsa/tag_dsa.c | 23 |
1 files changed, 8 insertions, 15 deletions
diff --git a/net/dsa/tag_dsa.c b/net/dsa/tag_dsa.c index 1c6633f0de01..12867a4b458f 100644 --- a/net/dsa/tag_dsa.c +++ b/net/dsa/tag_dsa.c @@ -11,7 +11,7 @@ #include <linux/etherdevice.h> #include <linux/list.h> #include <linux/slab.h> -#include <net/dsa.h> + #include "dsa_priv.h" #define DSA_HLEN 4 @@ -28,7 +28,7 @@ static struct sk_buff *dsa_xmit(struct sk_buff *skb, struct net_device *dev) */ if (skb->protocol == htons(ETH_P_8021Q)) { if (skb_cow_head(skb, 0) < 0) - goto out_free; + return NULL; /* * Construct tagged FROM_CPU DSA tag from 802.1q tag. @@ -46,7 +46,7 @@ static struct sk_buff *dsa_xmit(struct sk_buff *skb, struct net_device *dev) } } else { if (skb_cow_head(skb, DSA_HLEN) < 0) - goto out_free; + return NULL; skb_push(skb, DSA_HLEN); memmove(skb->data, skb->data + DSA_HLEN, 2 * ETH_ALEN); @@ -62,10 +62,6 @@ static struct sk_buff *dsa_xmit(struct sk_buff *skb, struct net_device *dev) } return skb; - -out_free: - kfree_skb(skb); - return NULL; } static struct sk_buff *dsa_rcv(struct sk_buff *skb, struct net_device *dev, @@ -79,7 +75,7 @@ static struct sk_buff *dsa_rcv(struct sk_buff *skb, struct net_device *dev, int source_port; if (unlikely(!pskb_may_pull(skb, DSA_HLEN))) - goto out_drop; + return NULL; /* * The ethertype field is part of the DSA header. @@ -90,7 +86,7 @@ static struct sk_buff *dsa_rcv(struct sk_buff *skb, struct net_device *dev, * Check that frame type is either TO_CPU or FORWARD. */ if ((dsa_header[0] & 0xc0) != 0x00 && (dsa_header[0] & 0xc0) != 0xc0) - goto out_drop; + return NULL; /* * Determine source device and port. @@ -103,14 +99,14 @@ static struct sk_buff *dsa_rcv(struct sk_buff *skb, struct net_device *dev, * port is a registered DSA port. */ if (source_device >= DSA_MAX_SWITCHES) - goto out_drop; + return NULL; ds = dst->ds[source_device]; if (!ds) - goto out_drop; + return NULL; if (source_port >= ds->num_ports || !ds->ports[source_port].netdev) - goto out_drop; + return NULL; /* * Convert the DSA header to an 802.1q header if the 'tagged' @@ -161,9 +157,6 @@ static struct sk_buff *dsa_rcv(struct sk_buff *skb, struct net_device *dev, skb->dev = ds->ports[source_port].netdev; return skb; - -out_drop: - return NULL; } const struct dsa_device_ops dsa_netdev_ops = { |