netdev - [PATCH net-next-2.6 2/4] 8139too: use mc helpers to access multicast list

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Date:	Thu, 22 Oct 2009 15:53:08 +0200
From:	Jiri Pirko <jpirko@...hat.com>
To:	netdev@...r.kernel.org
Cc:	davem@...emloft.net, eric.dumazet@...il.com,
	jeffrey.t.kirsher@...el.com, jesse.brandeburg@...el.com,
	bruce.w.allan@...el.com, peter.p.waskiewicz.jr@...el.com,
	john.ronciak@...el.com, e1000-devel@...ts.sourceforge.net,
	mchehab@...radead.org, linux-media@...r.kernel.org
Subject: [PATCH net-next-2.6 2/4] 8139too: use mc helpers to access
	multicast list

Signed-off-by: Jiri Pirko <jpirko@...hat.com>
---
 drivers/net/8139too.c |   24 ++++++++++++++----------
 1 files changed, 14 insertions(+), 10 deletions(-)

diff --git a/drivers/net/8139too.c b/drivers/net/8139too.c
index 7e333f7..f0c3670 100644
--- a/drivers/net/8139too.c
+++ b/drivers/net/8139too.c
@@ -2501,6 +2501,15 @@ static struct net_device_stats *rtl8139_get_stats (struct net_device *dev)
 	return &dev->stats;
 }
 
+static void mc_walker(void *data, unsigned char *addr)
+{
+	u32 *mc_filter = data;
+	int bit_nr;
+
+	bit_nr = ether_crc(ETH_ALEN, addr) >> 26;
+	mc_filter[bit_nr >> 5] |= 1 << (bit_nr & 31);
+}
+
 /* Set or clear the multicast filter for this adaptor.
    This routine is not state sensitive and need not be SMP locked. */
 
@@ -2509,7 +2518,7 @@ static void __set_rx_mode (struct net_device *dev)
 	struct rtl8139_private *tp = netdev_priv(dev);
 	void __iomem *ioaddr = tp->mmio_addr;
 	u32 mc_filter[2];	/* Multicast hash filter */
-	int i, rx_mode;
+	int rx_mode;
 	u32 tmp;
 
 	pr_debug("%s:   rtl8139_set_rx_mode(%4.4x) done -- Rx config %8.8lx.\n",
@@ -2521,22 +2530,17 @@ static void __set_rx_mode (struct net_device *dev)
 		    AcceptBroadcast | AcceptMulticast | AcceptMyPhys |
 		    AcceptAllPhys;
 		mc_filter[1] = mc_filter[0] = 0xffffffff;
-	} else if ((dev->mc_count > multicast_filter_limit)
+	} else if ((netdev_mc_count(dev) > multicast_filter_limit)
 		   || (dev->flags & IFF_ALLMULTI)) {
 		/* Too many to filter perfectly -- accept all multicasts. */
 		rx_mode = AcceptBroadcast | AcceptMulticast | AcceptMyPhys;
 		mc_filter[1] = mc_filter[0] = 0xffffffff;
 	} else {
-		struct dev_mc_list *mclist;
 		rx_mode = AcceptBroadcast | AcceptMyPhys;
-		mc_filter[1] = mc_filter[0] = 0;
-		for (i = 0, mclist = dev->mc_list; mclist && i < dev->mc_count;
-		     i++, mclist = mclist->next) {
-			int bit_nr = ether_crc(ETH_ALEN, mclist->dmi_addr) >> 26;
-
-			mc_filter[bit_nr >> 5] |= 1 << (bit_nr & 31);
+		if (!netdev_mc_empty(dev))
 			rx_mode |= AcceptMulticast;
-		}
+		mc_filter[1] = mc_filter[0] = 0;
+		netdev_mc_walk(dev, mc_walker, mc_filter);
 	}
 
 	/* We can safely update without stopping the chip. */
-- 
1.6.2.5

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