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Date: Fri, 4 Jul 2014 23:36:40 +0200
From: Arvid Brodin <arvid.brodin@...en.se>
To: "David S. Miller" <davem@...emloft.net>
CC: "netdev@...r.kernel.org" <netdev@...r.kernel.org>
Subject: [PATCH net-next 04/10] net/hsr: Operstate handling cleanup.
Signed-off-by: Arvid Brodin <arvid.brodin@...en.se>
---
net/hsr/hsr_device.c | 37 ++++++++++++++++++++++++++++---------
net/hsr/hsr_device.h | 6 +-----
net/hsr/hsr_main.c | 9 +--------
3 files changed, 30 insertions(+), 22 deletions(-)
diff --git a/net/hsr/hsr_device.c b/net/hsr/hsr_device.c
index f224067..8936b3c 100644
--- a/net/hsr/hsr_device.c
+++ b/net/hsr/hsr_device.c
@@ -46,31 +46,36 @@ static void __hsr_set_operstate(struct net_device *dev, int transition)
}
}
-void hsr_set_operstate(struct net_device *hsr_dev, struct net_device *slave1,
- struct net_device *slave2)
+static void hsr_set_operstate(struct net_device *hsr_dev, bool has_carrier)
{
if (!is_admin_up(hsr_dev)) {
__hsr_set_operstate(hsr_dev, IF_OPER_DOWN);
return;
}
- if (is_slave_up(slave1) || is_slave_up(slave2))
+ if (has_carrier)
__hsr_set_operstate(hsr_dev, IF_OPER_UP);
else
__hsr_set_operstate(hsr_dev, IF_OPER_LOWERLAYERDOWN);
}
-void hsr_set_carrier(struct net_device *hsr_dev, struct net_device *slave1,
- struct net_device *slave2)
+static bool hsr_check_carrier(struct hsr_priv *hsr)
{
- if (is_slave_up(slave1) || is_slave_up(slave2))
- netif_carrier_on(hsr_dev);
+ bool has_carrier;
+
+ has_carrier = (is_slave_up(hsr->slave[0]) || is_slave_up(hsr->slave[1]));
+
+ if (has_carrier)
+ netif_carrier_on(hsr->dev);
else
- netif_carrier_off(hsr_dev);
+ netif_carrier_off(hsr->dev);
+
+ return has_carrier;
}
-void hsr_check_announce(struct net_device *hsr_dev, int old_operstate)
+static void hsr_check_announce(struct net_device *hsr_dev,
+ unsigned char old_operstate)
{
struct hsr_priv *hsr;
@@ -89,6 +94,20 @@ void hsr_check_announce(struct net_device *hsr_dev, int old_operstate)
del_timer(&hsr->announce_timer);
}
+void hsr_check_carrier_and_operstate(struct hsr_priv *hsr)
+{
+ unsigned char old_operstate;
+ bool has_carrier;
+
+ /* netif_stacked_transfer_operstate() cannot be used here since
+ * it doesn't set IF_OPER_LOWERLAYERDOWN (?)
+ */
+ old_operstate = hsr->dev->operstate;
+ has_carrier = hsr_check_carrier(hsr);
+ hsr_set_operstate(hsr->dev, has_carrier);
+ hsr_check_announce(hsr->dev, old_operstate);
+}
+
int hsr_get_max_mtu(struct hsr_priv *hsr)
{
diff --git a/net/hsr/hsr_device.h b/net/hsr/hsr_device.h
index feb744f..108a5d5 100644
--- a/net/hsr/hsr_device.h
+++ b/net/hsr/hsr_device.h
@@ -18,11 +18,7 @@
void hsr_dev_setup(struct net_device *dev);
int hsr_dev_finalize(struct net_device *hsr_dev, struct net_device *slave[2],
unsigned char multicast_spec);
-void hsr_set_operstate(struct net_device *hsr_dev, struct net_device *slave1,
- struct net_device *slave2);
-void hsr_set_carrier(struct net_device *hsr_dev, struct net_device *slave1,
- struct net_device *slave2);
-void hsr_check_announce(struct net_device *hsr_dev, int old_operstate);
+void hsr_check_carrier_and_operstate(struct hsr_priv *hsr);
bool is_hsr_master(struct net_device *dev);
int hsr_get_max_mtu(struct hsr_priv *hsr);
diff --git a/net/hsr/hsr_main.c b/net/hsr/hsr_main.c
index 5f9cd7f..431b528 100644
--- a/net/hsr/hsr_main.c
+++ b/net/hsr/hsr_main.c
@@ -91,7 +91,6 @@ static int hsr_netdev_notify(struct notifier_block *nb, unsigned long event,
{
struct net_device *slave, *other_slave;
struct hsr_priv *hsr;
- int old_operstate;
int mtu_max;
int res;
struct net_device *dev;
@@ -115,13 +114,7 @@ static int hsr_netdev_notify(struct notifier_block *nb, unsigned long event,
case NETDEV_UP: /* Administrative state DOWN */
case NETDEV_DOWN: /* Administrative state UP */
case NETDEV_CHANGE: /* Link (carrier) state changes */
- old_operstate = hsr->dev->operstate;
- hsr_set_carrier(hsr->dev, slave, other_slave);
- /* netif_stacked_transfer_operstate() cannot be used here since
- * it doesn't set IF_OPER_LOWERLAYERDOWN (?)
- */
- hsr_set_operstate(hsr->dev, slave, other_slave);
- hsr_check_announce(hsr->dev, old_operstate);
+ hsr_check_carrier_and_operstate(hsr);
break;
case NETDEV_CHANGEADDR:
--
1.8.3.2
--
Arvid Brodin | Consultant (Linux)
ALTEN | Knarrarnäsgatan 7 | SE-164 40 Kista | Sweden
arvid.brodin@...en.se | www.alten.se/en/
--
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