netdev - [PATCH] slip: fix NOHZ local_softirq

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Message-ID: <CAKh5naYrNPG3UO02VzG13QUP-SOP8-Td+O0G5LAr-+npduP49A@mail.gmail.com>
Date:	Fri, 5 Aug 2011 23:23:51 +0400
From:	Matvejchikov Ilya <matvejchikov@...il.com>
To:	netdev@...r.kernel.org
Subject: [PATCH] slip: fix NOHZ local_softirq_pending 08 warning

When using nanosleep() in an userspace application we get a ratelimit warning:

	NOHZ: local_softirq_pending 08

According to 481a8199142c050b72bff8a1956a49fd0a75bbe0 the problem is caused by
netif_rx() function. This patch replaces netif_rx() with netif_rx_ni() which
has to be used from process/softirq context.

Signed-off-by: Matvejchikov Ilya <matvejchikov@...il.com>
---
 drivers/net/slip.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/drivers/net/slip.c b/drivers/net/slip.c
index f11b3f3..4c61753 100644
--- a/drivers/net/slip.c
+++ b/drivers/net/slip.c
@@ -367,7 +367,7 @@ static void sl_bump(struct slip *sl)
 	memcpy(skb_put(skb, count), sl->rbuff, count);
 	skb_reset_mac_header(skb);
 	skb->protocol = htons(ETH_P_IP);
-	netif_rx(skb);
+	netif_rx_ni(skb);
 	dev->stats.rx_packets++;
 }

-- 
1.7.4.1
--
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