linux-kernel - [patch] forcedeth: fix the NAPI poll function, take #2

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Message-ID: <20071017101823.GA4573@elte.hu>
Date:	Wed, 17 Oct 2007 12:18:23 +0200
From:	Ingo Molnar <mingo@...e.hu>
To:	Jeff Garzik <jgarzik@...ox.com>
Cc:	David Miller <davem@...emloft.net>, linux-kernel@...r.kernel.org,
	torvalds@...ux-foundation.org, shemminger@...ux-foundation.org
Subject: [patch] forcedeth: fix the NAPI poll function, take #2


> I'll send upstream today unless people scream...

albeit you forgot to merge half of my patch :-/ The (tested) patch below 
fixes that.

	Ingo

---------------->
Subject: forcedeth: fix rx-work condition in nv_rx_process_optimized() too
From: Ingo Molnar <mingo@...e.hu>

the merge of my previous fix to forcedeth.c lots an important hunk.

this patch fixes that.

Signed-off-by: Ingo Molnar <mingo@...e.hu>
---
 drivers/net/forcedeth.c |    8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

Index: linux/drivers/net/forcedeth.c
===================================================================
--- linux.orig/drivers/net/forcedeth.c
+++ linux/drivers/net/forcedeth.c
@@ -2408,13 +2408,13 @@ static int nv_rx_process_optimized(struc
 	struct fe_priv *np = netdev_priv(dev);
 	u32 flags;
 	u32 vlanflags = 0;
-	u32 rx_processed_cnt = 0;
+	int rx_work = 0;
 	struct sk_buff *skb;
 	int len;
 
 	while((np->get_rx.ex != np->put_rx.ex) &&
 	      !((flags = le32_to_cpu(np->get_rx.ex->flaglen)) & NV_RX2_AVAIL) &&
-	      (rx_processed_cnt++ < limit)) {
+	      (rx_work < limit)) {
 
 		dprintk(KERN_DEBUG "%s: nv_rx_process_optimized: flags 0x%x.\n",
 					dev->name, flags);
@@ -2517,9 +2517,11 @@ next_pkt:
 			np->get_rx.ex = np->first_rx.ex;
 		if (unlikely(np->get_rx_ctx++ == np->last_rx_ctx))
 			np->get_rx_ctx = np->first_rx_ctx;
+
+		rx_work++;
 	}
 
-	return rx_processed_cnt;
+	return rx_work;
 }
 
 static void set_bufsize(struct net_device *dev)
-
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