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authorMark Brown <broonie@kernel.org>2015-09-04 17:16:39 +0100
committerMark Brown <broonie@kernel.org>2015-09-04 17:16:39 +0100
commit04782ca20a8ebb5acf0c35756a38964ae5ea7321 (patch)
treeebf475793bb17444d3a1e21974617f27e8ff3a4b /net/can/af_can.c
parentd5b98eb12420ce856caaf57dc5256eedc56a3747 (diff)
parent17649c90ff4c5246bb4babf6260029968a6d119d (diff)
Merge branch 'topic/smbus-block' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap into regmap-core
Diffstat (limited to 'net/can/af_can.c')
-rw-r--r--net/can/af_can.c12
1 files changed, 7 insertions, 5 deletions
diff --git a/net/can/af_can.c b/net/can/af_can.c
index 7933e62a7318..166d436196c1 100644
--- a/net/can/af_can.c
+++ b/net/can/af_can.c
@@ -89,6 +89,8 @@ struct timer_list can_stattimer; /* timer for statistics update */
struct s_stats can_stats; /* packet statistics */
struct s_pstats can_pstats; /* receive list statistics */
+static atomic_t skbcounter = ATOMIC_INIT(0);
+
/*
* af_can socket functions
*/
@@ -310,12 +312,8 @@ int can_send(struct sk_buff *skb, int loop)
return err;
}
- if (newskb) {
- if (!(newskb->tstamp.tv64))
- __net_timestamp(newskb);
-
+ if (newskb)
netif_rx_ni(newskb);
- }
/* update statistics */
can_stats.tx_frames++;
@@ -683,6 +681,10 @@ static void can_receive(struct sk_buff *skb, struct net_device *dev)
can_stats.rx_frames++;
can_stats.rx_frames_delta++;
+ /* create non-zero unique skb identifier together with *skb */
+ while (!(can_skb_prv(skb)->skbcnt))
+ can_skb_prv(skb)->skbcnt = atomic_inc_return(&skbcounter);
+
rcu_read_lock();
/* deliver the packet to sockets listening on all devices */