From: Oliver Hartkopp <oliver@hartkopp.net>
Date: Tue, 15 Sep 2009 08:31:34 +0000 (-0700)
Subject: can: fix NOHZ local_softirq_pending 08 warning
X-Git-Tag: v2.6.32-rc1~657^2~32
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=481a8199142c050b72bff8a1956a49fd0a75bbe0;p=pandora-kernel.git

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 <oliver@hartkopp.net>
Signed-off-by: Urs Thuermann <urs@isnogud.escape.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

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