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| author | Oliver Hartkopp <oliver@hartkopp.net> | 2010-01-12 02:00:46 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2010-01-12 02:00:46 -0800 |
| commit | 3ccd4c6167d3b39d52631767ebbf8b5677c5855d (patch) | |
| tree | bfcb801edebd00e8b30e897038bad7fee39625cc /drivers/net/can/ti_hecc.c | |
| parent | d218d11133d888f9745802146a50255a4781d37a (diff) | |
| download | linux-3ccd4c6167d3b39d52631767ebbf8b5677c5855d.tar.gz linux-3ccd4c6167d3b39d52631767ebbf8b5677c5855d.tar.bz2 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/ti_hecc.c')
| -rw-r--r-- | drivers/net/can/ti_hecc.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/net/can/ti_hecc.c b/drivers/net/can/ti_hecc.c index 5c993c2da528..7d370e32a7a8 100644 --- a/drivers/net/can/ti_hecc.c +++ b/drivers/net/can/ti_hecc.c @@ -477,6 +477,9 @@ static netdev_tx_t ti_hecc_xmit(struct sk_buff *skb, struct net_device *ndev) u32 mbxno, mbx_mask, data; unsigned long flags; + if (can_dropped_invalid_skb(ndev, skb)) + return NETDEV_TX_OK; + mbxno = get_tx_head_mb(priv); mbx_mask = BIT(mbxno); spin_lock_irqsave(&priv->mbx_lock, flags); @@ -491,7 +494,6 @@ static netdev_tx_t ti_hecc_xmit(struct sk_buff *skb, struct net_device *ndev) spin_unlock_irqrestore(&priv->mbx_lock, flags); /* Prepare mailbox for transmission */ - data = min_t(u8, cf->can_dlc, 8); if (cf->can_id & CAN_RTR_FLAG) /* Remote transmission request */ data |= HECC_CANMCF_RTR; data |= get_tx_head_prio(priv) << 8; |