diff options
| author | Per Forlin <per.forlin@axis.com> | 2020-02-13 15:37:09 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-02-24 08:34:34 +0100 |
| commit | d1e0f10e92bae5dd05d5e970d584d510e5973bb2 (patch) | |
| tree | a8be0fffe112b74766e30a78e23afeea7e2901e1 /net/dsa | |
| parent | 421ab4119eb5d9cd1bf4d59069c7e15752c7c417 (diff) | |
net: dsa: tag_qca: Make sure there is headroom for tag
[ Upstream commit 04fb91243a853dbde216d829c79d9632e52aa8d9 ]
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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'net/dsa')
| -rw-r--r-- | net/dsa/tag_qca.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/net/dsa/tag_qca.c b/net/dsa/tag_qca.c index 66a952118dfd..9c0dd31d4445 100644 --- a/net/dsa/tag_qca.c +++ b/net/dsa/tag_qca.c @@ -41,7 +41,7 @@ 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); |