A-Team_Digital_Solutions/android_kernel_motorola_sm6375
Watch
2
0
Fork
You've already forked android_kernel_motorola_sm6375
 0
mirror of https://github.com/BobTheBlinker/android_kernel_motorola_sm6375.git synced 2026-10-28 02:32:09 -04:00
Code Issues Projects Releases Packages Wiki Activity

can: fix NOHZ local_softirq_pending 08 warning

Browse source 
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 <[email protected]>
Signed-off-by: Urs Thuermann <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
This commit is contained in:
Oliver Hartkopp 2009-09-15 01:31:34 -07:00 • committed by David S. Miller
commit 481a819914
2 changed files with 4 additions and 2 deletions
Download patch file Download diff file Expand all files Collapse all files

2
drivers/net/can/vcan.c
View file

@ -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)