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net: dsa: Do not check for NULL dst in tag parsers
dsa_switch_rcv() already tests for dst == NULL, so there is no need to duplicate the same check within the tag receive functions. Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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7f564528a4
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@ -100,9 +100,6 @@ static int brcm_tag_rcv(struct sk_buff *skb, struct net_device *dev,
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int source_port;
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u8 *brcm_tag;
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if (unlikely(dst == NULL))
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goto out_drop;
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ds = dst->cpu_switch;
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skb = skb_unshare(skb, GFP_ATOMIC);
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@ -77,9 +77,6 @@ static int dsa_rcv(struct sk_buff *skb, struct net_device *dev,
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int source_device;
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int source_port;
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if (unlikely(dst == NULL))
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goto out_drop;
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skb = skb_unshare(skb, GFP_ATOMIC);
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if (skb == NULL)
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goto out;
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@ -90,9 +90,6 @@ static int edsa_rcv(struct sk_buff *skb, struct net_device *dev,
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int source_device;
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int source_port;
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if (unlikely(dst == NULL))
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goto out_drop;
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skb = skb_unshare(skb, GFP_ATOMIC);
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if (skb == NULL)
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goto out;
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@ -55,9 +55,6 @@ static int mtk_tag_rcv(struct sk_buff *skb, struct net_device *dev,
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int port;
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__be16 *phdr, hdr;
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if (unlikely(!dst))
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goto out_drop;
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skb = skb_unshare(skb, GFP_ATOMIC);
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if (!skb)
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goto out;
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@ -75,9 +75,6 @@ static int qca_tag_rcv(struct sk_buff *skb, struct net_device *dev,
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int port;
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__be16 *phdr, hdr;
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if (unlikely(!dst))
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goto out_drop;
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skb = skb_unshare(skb, GFP_ATOMIC);
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if (!skb)
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goto out;
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@ -66,8 +66,6 @@ static int trailer_rcv(struct sk_buff *skb, struct net_device *dev,
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u8 *trailer;
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int source_port;
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if (unlikely(dst == NULL))
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goto out_drop;
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ds = dst->cpu_switch;
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skb = skb_unshare(skb, GFP_ATOMIC);
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