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authorFlorian Fainelli <f.fainelli@gmail.com>2017-04-08 18:55:22 +0300
committerDavid S. Miller <davem@davemloft.net>2017-04-08 23:49:36 +0300
commit16c5dcb13a371feae0e680e6518775b5335b37d8 (patch)
tree2dd0fe414dc67bcef0da6c4e2a19178650145fe3 /net/dsa/dsa.c
parent9d7f9c4f78e95dd9d17199a53d903262530be62e (diff)
downloadlinux-16c5dcb13a371feae0e680e6518775b5335b37d8.tar.xz
net: dsa: Move skb_unshare() to dsa_switch_rcv()
All DSA tag receive functions need to unshare the skb before mangling it, move this to the generic dsa_switch_rcv() function which will allow us to make the tag receive function return their mangled skb without caring about freeing a NULL skb. Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/dsa/dsa.c')
-rw-r--r--net/dsa/dsa.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/net/dsa/dsa.c b/net/dsa/dsa.c
index 6cad15da5892..d370c8bfa372 100644
--- a/net/dsa/dsa.c
+++ b/net/dsa/dsa.c
@@ -906,6 +906,10 @@ static int dsa_switch_rcv(struct sk_buff *skb, struct net_device *dev,
return 0;
}
+ skb = skb_unshare(skb, GFP_ATOMIC);
+ if (!skb)
+ return 0;
+
return dst->rcv(skb, dev, pt, orig_dev);
}