From 481a8199142c050b72bff8a1956a49fd0a75bbe0 Mon Sep 17 00:00:00 2001 From: Oliver Hartkopp Date: Tue, 15 Sep 2009 01:31:34 -0700 Subject: can: fix NOHZ local_softirq_pending 08 warning When using nanosleep() in an userspace application we get a ratelimit warning NOHZ: local_softirq_pending 08 for 10 times. The echo of CAN frames is done from process context and softirq context only. Therefore the usage of netif_rx() was wrong (for years). This patch replaces netif_rx() with netif_rx_ni() which has to be used from process/softirq context. It also adds a missing comment that can_send() must no be used from hardirq context. Signed-off-by: Oliver Hartkopp Signed-off-by: Urs Thuermann Signed-off-by: David S. Miller --- drivers/net/can/vcan.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/net/can/vcan.c') diff --git a/drivers/net/can/vcan.c b/drivers/net/can/vcan.c index 6971f6cd37f..80ac5631398 100644 --- a/drivers/net/can/vcan.c +++ b/drivers/net/can/vcan.c @@ -80,7 +80,7 @@ static void vcan_rx(struct sk_buff *skb, struct net_device *dev) skb->dev = dev; skb->ip_summed = CHECKSUM_UNNECESSARY; - netif_rx(skb); + netif_rx_ni(skb); } static netdev_tx_t vcan_tx(struct sk_buff *skb, struct net_device *dev) -- cgit v1.2.3