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authorFlorian Fainelli <f.fainelli@gmail.com>2017-06-13 13:27:19 -0700
committerDavid S. Miller <davem@davemloft.net>2017-06-13 16:35:02 -0400
commit6d3c8c0dd88a5ffc7e3695997641e4b6d4c11065 (patch)
tree847ec56e33c25db7042393473557a1cebfeb3788 /net/dsa/slave.c
parent38b6ec5008bb7019a705b576df345509f39d3f4b (diff)
net: dsa: Remove master_netdev and use dst->cpu_dp->netdev
In preparation for supporting multiple CPU ports, remove dst->master_netdev and ds->master_netdev and replace them with only one instance of the common object we have for a port: struct dsa_port::netdev. ds->master_netdev is currently write only and would be helpful in the case where we have two switches, both with CPU ports, and also connected within each other, which the multi-CPU port patch series would address. While at it, introduce a helper function used in net/dsa/slave.c to immediately get a reference on the master network device called dsa_master_netdev(). Reviewed-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com> Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/dsa/slave.c')
-rw-r--r--net/dsa/slave.c21
1 files changed, 9 insertions, 12 deletions
diff --git a/net/dsa/slave.c b/net/dsa/slave.c
index 5e45ae5c3f71..658bc67c5320 100644
--- a/net/dsa/slave.c
+++ b/net/dsa/slave.c
@@ -66,7 +66,7 @@ static int dsa_slave_get_iflink(const struct net_device *dev)
{
struct dsa_slave_priv *p = netdev_priv(dev);
- return p->dp->ds->dst->master_netdev->ifindex;
+ return dsa_master_netdev(p)->ifindex;
}
static int dsa_slave_open(struct net_device *dev)
@@ -74,7 +74,7 @@ static int dsa_slave_open(struct net_device *dev)
struct dsa_slave_priv *p = netdev_priv(dev);
struct dsa_port *dp = p->dp;
struct dsa_switch *ds = dp->ds;
- struct net_device *master = ds->dst->master_netdev;
+ struct net_device *master = dsa_master_netdev(p);
u8 stp_state = dp->bridge_dev ? BR_STATE_BLOCKING : BR_STATE_FORWARDING;
int err;
@@ -127,7 +127,7 @@ out:
static int dsa_slave_close(struct net_device *dev)
{
struct dsa_slave_priv *p = netdev_priv(dev);
- struct net_device *master = p->dp->ds->dst->master_netdev;
+ struct net_device *master = dsa_master_netdev(p);
struct dsa_switch *ds = p->dp->ds;
if (p->phy)
@@ -154,7 +154,7 @@ static int dsa_slave_close(struct net_device *dev)
static void dsa_slave_change_rx_flags(struct net_device *dev, int change)
{
struct dsa_slave_priv *p = netdev_priv(dev);
- struct net_device *master = p->dp->ds->dst->master_netdev;
+ struct net_device *master = dsa_master_netdev(p);
if (change & IFF_ALLMULTI)
dev_set_allmulti(master, dev->flags & IFF_ALLMULTI ? 1 : -1);
@@ -165,7 +165,7 @@ static void dsa_slave_change_rx_flags(struct net_device *dev, int change)
static void dsa_slave_set_rx_mode(struct net_device *dev)
{
struct dsa_slave_priv *p = netdev_priv(dev);
- struct net_device *master = p->dp->ds->dst->master_netdev;
+ struct net_device *master = dsa_master_netdev(p);
dev_mc_sync(master, dev);
dev_uc_sync(master, dev);
@@ -174,7 +174,7 @@ static void dsa_slave_set_rx_mode(struct net_device *dev)
static int dsa_slave_set_mac_address(struct net_device *dev, void *a)
{
struct dsa_slave_priv *p = netdev_priv(dev);
- struct net_device *master = p->dp->ds->dst->master_netdev;
+ struct net_device *master = dsa_master_netdev(p);
struct sockaddr *addr = a;
int err;
@@ -375,7 +375,7 @@ static netdev_tx_t dsa_slave_xmit(struct sk_buff *skb, struct net_device *dev)
/* Queue the SKB for transmission on the parent interface, but
* do not modify its EtherType
*/
- nskb->dev = p->dp->ds->dst->master_netdev;
+ nskb->dev = dsa_master_netdev(p);
dev_queue_xmit(nskb);
return NETDEV_TX_OK;
@@ -684,8 +684,7 @@ static int dsa_slave_netpoll_setup(struct net_device *dev,
struct netpoll_info *ni)
{
struct dsa_slave_priv *p = netdev_priv(dev);
- struct dsa_switch *ds = p->dp->ds;
- struct net_device *master = ds->dst->master_netdev;
+ struct net_device *master = dsa_master_netdev(p);
struct netpoll *netpoll;
int err = 0;
@@ -1143,9 +1142,7 @@ int dsa_slave_create(struct dsa_switch *ds, struct device *parent,
struct dsa_slave_priv *p;
int ret;
- master = ds->dst->master_netdev;
- if (ds->master_netdev)
- master = ds->master_netdev;
+ master = ds->dst->cpu_dp->netdev;
slave_dev = alloc_netdev(sizeof(struct dsa_slave_priv), name,
NET_NAME_UNKNOWN, ether_setup);