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authorPer Forlin <per.forlin@axis.com>2020-02-13 17:37:09 +0300
committerDavid S. Miller <davem@davemloft.net>2020-02-14 18:34:51 +0300
commit04fb91243a853dbde216d829c79d9632e52aa8d9 (patch)
tree227acdfe8a5014fa5633544ce20d97f99431f270 /net/dsa
parent5fdcce211b3a41c3fed229333027f59a94a2f265 (diff)
downloadlinux-04fb91243a853dbde216d829c79d9632e52aa8d9.tar.xz
net: dsa: tag_qca: Make sure there is headroom for tag
Passing tag size to skb_cow_head will make sure there is enough headroom for the tag data. This change does not introduce any overhead in case there is already available headroom for tag. Signed-off-by: Per Forlin <perfn@axis.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/dsa')
-rw-r--r--net/dsa/tag_qca.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/net/dsa/tag_qca.c b/net/dsa/tag_qca.c
index c8a128c9e5e0..70db7c909f74 100644
--- a/net/dsa/tag_qca.c
+++ b/net/dsa/tag_qca.c
@@ -33,7 +33,7 @@ static struct sk_buff *qca_tag_xmit(struct sk_buff *skb, struct net_device *dev)
struct dsa_port *dp = dsa_slave_to_port(dev);
u16 *phdr, hdr;
- if (skb_cow_head(skb, 0) < 0)
+ if (skb_cow_head(skb, QCA_HDR_LEN) < 0)
return NULL;
skb_push(skb, QCA_HDR_LEN);