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Message-Id: <20110331110135.1594713909@rere.qmqm.pl>
Date: Thu, 31 Mar 2011 13:01:35 +0200 (CEST)
From: Michał Mirosław <mirq-linux@...e.qmqm.pl>
To: netdev@...r.kernel.org
Cc: Stephen Hemminger <shemminger@...ux-foundation.org>,
"David S. Miller" <davem@...emloft.net>,
Herbert Xu <herbert@...dor.apana.org.au>,
Eric Dumazet <eric.dumazet@...il.com>,
bridge@...ts.linux-foundation.org
Subject: [RFC PATCH] bridge: convert br_features_recompute() to ndo_fix_features
This is a minimal change. br_features_recompute() might be just merged
to br_fix_features() since it should not be used explicitly anymore.
Signed-off-by: Michał Mirosław <mirq-linux@...e.qmqm.pl>
---
net/bridge/br_device.c | 57 +++++------------------------------------------
net/bridge/br_if.c | 16 +++++-------
net/bridge/br_notify.c | 2 +-
net/bridge/br_private.h | 3 +-
4 files changed, 15 insertions(+), 63 deletions(-)
diff --git a/net/bridge/br_device.c b/net/bridge/br_device.c
index 21e5901..d6ede61 100644
--- a/net/bridge/br_device.c
+++ b/net/bridge/br_device.c
@@ -79,8 +79,7 @@ static int br_dev_open(struct net_device *dev)
struct net_bridge *br = netdev_priv(dev);
netif_carrier_off(dev);
-
- br_features_recompute(br);
+ netdev_update_features(dev);
netif_start_queue(dev);
br_stp_enable_bridge(br);
br_multicast_open(br);
@@ -177,48 +176,11 @@ static void br_getinfo(struct net_device *dev, struct ethtool_drvinfo *info)
strcpy(info->bus_info, "N/A");
}
-static int br_set_sg(struct net_device *dev, u32 data)
+static u32 br_fix_features(struct net_device *dev, u32 features)
{
struct net_bridge *br = netdev_priv(dev);
- if (data)
- br->feature_mask |= NETIF_F_SG;
- else
- br->feature_mask &= ~NETIF_F_SG;
-
- br_features_recompute(br);
- return 0;
-}
-
-static int br_set_tso(struct net_device *dev, u32 data)
-{
- struct net_bridge *br = netdev_priv(dev);
-
- if (data)
- br->feature_mask |= NETIF_F_TSO;
- else
- br->feature_mask &= ~NETIF_F_TSO;
-
- br_features_recompute(br);
- return 0;
-}
-
-static int br_set_tx_csum(struct net_device *dev, u32 data)
-{
- struct net_bridge *br = netdev_priv(dev);
-
- if (data)
- br->feature_mask |= NETIF_F_NO_CSUM;
- else
- br->feature_mask &= ~NETIF_F_ALL_CSUM;
-
- br_features_recompute(br);
- return 0;
-}
-
-static int br_set_flags(struct net_device *netdev, u32 data)
-{
- return ethtool_op_set_flags(netdev, data, ETH_FLAG_TXVLAN);
+ return br_features_recompute(br, features);
}
#ifdef CONFIG_NET_POLL_CONTROLLER
@@ -319,16 +281,6 @@ static int br_del_slave(struct net_device *dev, struct net_device *slave_dev)
static const struct ethtool_ops br_ethtool_ops = {
.get_drvinfo = br_getinfo,
.get_link = ethtool_op_get_link,
- .get_tx_csum = ethtool_op_get_tx_csum,
- .set_tx_csum = br_set_tx_csum,
- .get_sg = ethtool_op_get_sg,
- .set_sg = br_set_sg,
- .get_tso = ethtool_op_get_tso,
- .set_tso = br_set_tso,
- .get_ufo = ethtool_op_get_ufo,
- .set_ufo = ethtool_op_set_ufo,
- .get_flags = ethtool_op_get_flags,
- .set_flags = br_set_flags,
};
static const struct net_device_ops br_netdev_ops = {
@@ -347,6 +299,7 @@ static const struct net_device_ops br_netdev_ops = {
#endif
.ndo_add_slave = br_add_slave,
.ndo_del_slave = br_del_slave,
+ .ndo_fix_features = br_fix_features,
};
static void br_dev_free(struct net_device *dev)
@@ -371,4 +324,6 @@ void br_dev_setup(struct net_device *dev)
dev->features = NETIF_F_SG | NETIF_F_FRAGLIST | NETIF_F_HIGHDMA |
NETIF_F_GSO_MASK | NETIF_F_NO_CSUM | NETIF_F_LLTX |
NETIF_F_NETNS_LOCAL | NETIF_F_GSO | NETIF_F_HW_VLAN_TX;
+ dev->hw_features = NETIF_F_NO_CSUM | NETIF_F_SG | NETIF_F_GSO_MASK |
+ NETIF_F_HW_VLAN_TX;
}
diff --git a/net/bridge/br_if.c b/net/bridge/br_if.c
index 718b603..3622052 100644
--- a/net/bridge/br_if.c
+++ b/net/bridge/br_if.c
@@ -205,7 +205,6 @@ static struct net_device *new_bridge_dev(struct net *net, const char *name)
memcpy(br->group_addr, br_group_address, ETH_ALEN);
- br->feature_mask = dev->features;
br->stp_enabled = BR_NO_STP;
br->designated_root = br->bridge_id;
br->root_path_cost = 0;
@@ -364,15 +363,15 @@ int br_min_mtu(const struct net_bridge *br)
/*
* Recomputes features using slave's features
*/
-void br_features_recompute(struct net_bridge *br)
+u32 br_features_recompute(struct net_bridge *br, u32 features)
{
struct net_bridge_port *p;
- u32 features, mask;
+ u32 mask;
- features = mask = br->feature_mask;
if (list_empty(&br->port_list))
- goto done;
+ return features;
+ mask = features;
features &= ~NETIF_F_ONE_FOR_ALL;
list_for_each_entry(p, &br->port_list, list) {
@@ -380,8 +379,7 @@ void br_features_recompute(struct net_bridge *br)
p->dev->features, mask);
}
-done:
- br->dev->features = netdev_fix_features(br->dev, features);
+ return features;
}
/* called with RTNL */
@@ -448,7 +446,7 @@ int br_add_if(struct net_bridge *br, struct net_device *dev)
spin_lock_bh(&br->lock);
changed_addr = br_stp_recalculate_bridge_id(br);
- br_features_recompute(br);
+ netdev_update_features(br->dev);
if ((dev->flags & IFF_UP) && netif_carrier_ok(dev) &&
(br->dev->flags & IFF_UP))
@@ -496,7 +494,7 @@ int br_del_if(struct net_bridge *br, struct net_device *dev)
spin_lock_bh(&br->lock);
br_stp_recalculate_bridge_id(br);
- br_features_recompute(br);
+ netdev_update_features(br->dev);
spin_unlock_bh(&br->lock);
return 0;
diff --git a/net/bridge/br_notify.c b/net/bridge/br_notify.c
index 7d337c9..274ef4a 100644
--- a/net/bridge/br_notify.c
+++ b/net/bridge/br_notify.c
@@ -62,7 +62,7 @@ static int br_device_event(struct notifier_block *unused, unsigned long event, v
case NETDEV_FEAT_CHANGE:
spin_lock_bh(&br->lock);
if (netif_running(br->dev))
- br_features_recompute(br);
+ netdev_update_features(br->dev);
spin_unlock_bh(&br->lock);
break;
diff --git a/net/bridge/br_private.h b/net/bridge/br_private.h
index 387013d..077c351 100644
--- a/net/bridge/br_private.h
+++ b/net/bridge/br_private.h
@@ -182,7 +182,6 @@ struct net_bridge
struct br_cpu_netstats __percpu *stats;
spinlock_t hash_lock;
struct hlist_head hash[BR_HASH_SIZE];
- u32 feature_mask;
#ifdef CONFIG_BRIDGE_NETFILTER
struct rtable fake_rtable;
bool nf_call_iptables;
@@ -375,7 +374,7 @@ extern int br_add_if(struct net_bridge *br,
extern int br_del_if(struct net_bridge *br,
struct net_device *dev);
extern int br_min_mtu(const struct net_bridge *br);
-extern void br_features_recompute(struct net_bridge *br);
+extern u32 br_features_recompute(struct net_bridge *br, u32 features);
/* br_input.c */
extern int br_handle_frame_finish(struct sk_buff *skb);
--
1.7.2.5
--
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