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authorOliver Hartkopp <oliver@hartkopp.net>2010-01-12 11:00:46 +0100
committerDavid S. Miller <davem@davemloft.net>2010-01-12 11:00:46 +0100
commit3ccd4c6167d3b39d52631767ebbf8b5677c5855d (patch)
treebfcb801edebd00e8b30e897038bad7fee39625cc /drivers/net/can/mcp251x.c
parenttcp: Generalized TTL Security Mechanism (diff)
downloadlinux-3ccd4c6167d3b39d52631767ebbf8b5677c5855d.tar.xz
linux-3ccd4c6167d3b39d52631767ebbf8b5677c5855d.zip
can: Unify droping of invalid tx skbs and netdev stats
To prevent the CAN drivers to operate on invalid socketbuffers the skbs are now checked and silently dropped at the xmit-function consistently. Also the netdev stats are consistently using the CAN data length code (dlc) for [rx|tx]_bytes now. Signed-off-by: Oliver Hartkopp <oliver@hartkopp.net> Acked-by: Wolfgang Grandegger <wg@grandegger.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/can/mcp251x.c')
-rw-r--r--drivers/net/can/mcp251x.c6
1 files changed, 1 insertions, 5 deletions
diff --git a/drivers/net/can/mcp251x.c b/drivers/net/can/mcp251x.c
index 1a72ca066a17..afa2fa45fed9 100644
--- a/drivers/net/can/mcp251x.c
+++ b/drivers/net/can/mcp251x.c
@@ -494,12 +494,8 @@ static netdev_tx_t mcp251x_hard_start_xmit(struct sk_buff *skb,
return NETDEV_TX_BUSY;
}
- if (skb->len != sizeof(struct can_frame)) {
- dev_err(&spi->dev, "dropping packet - bad length\n");
- dev_kfree_skb(skb);
- net->stats.tx_dropped++;
+ if (can_dropped_invalid_skb(net, skb))
return NETDEV_TX_OK;
- }
netif_stop_queue(net);
priv->tx_skb = skb;