[PATCH net-next 04/10] net/hsr: Operstate handling cleanup.
From: Arvid Brodin <hidden>
Date: 2014-07-04 21:45:54
Subsystem:
hsr network protocol, networking [general], the rest · Maintainers:
"David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
Signed-off-by: Arvid Brodin <redacted> --- 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@alten.se | www.alten.se/en/