Commit f0bf90de authored by Sebastian Andrzej Siewior's avatar Sebastian Andrzej Siewior Committed by Thomas Gleixner
Browse files

net/dev: Convert to hotplug state machine



Install the callbacks via the state machine.
Signed-off-by: default avatarSebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
Cc: netdev@vger.kernel.org
Cc: "David S. Miller" <davem@davemloft.net>
Cc: rt@linutronix.de
Link: http://lkml.kernel.org/r/20161103145021.28528-9-bigeasy@linutronix.de

Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
parent 517bbed9
......@@ -36,6 +36,7 @@ enum cpuhp_state {
CPUHP_PERCPU_CNT_DEAD,
CPUHP_RADIX_DEAD,
CPUHP_PAGE_ALLOC_DEAD,
CPUHP_NET_DEV_DEAD,
CPUHP_WORKQUEUE_PREP,
CPUHP_POWER_NUMA_PREPARE,
CPUHP_HRTIMERS_PREPARE,
......
......@@ -7953,18 +7953,13 @@ int dev_change_net_namespace(struct net_device *dev, struct net *net, const char
}
EXPORT_SYMBOL_GPL(dev_change_net_namespace);
static int dev_cpu_callback(struct notifier_block *nfb,
unsigned long action,
void *ocpu)
static int dev_cpu_dead(unsigned int oldcpu)
{
struct sk_buff **list_skb;
struct sk_buff *skb;
unsigned int cpu, oldcpu = (unsigned long)ocpu;
unsigned int cpu;
struct softnet_data *sd, *oldsd;
if (action != CPU_DEAD && action != CPU_DEAD_FROZEN)
return NOTIFY_OK;
local_irq_disable();
cpu = smp_processor_id();
sd = &per_cpu(softnet_data, cpu);
......@@ -8014,10 +8009,9 @@ static int dev_cpu_callback(struct notifier_block *nfb,
input_queue_head_incr(oldsd);
}
return NOTIFY_OK;
return 0;
}
/**
* netdev_increment_features - increment feature set by one
* @all: current feature set
......@@ -8351,7 +8345,9 @@ static int __init net_dev_init(void)
open_softirq(NET_TX_SOFTIRQ, net_tx_action);
open_softirq(NET_RX_SOFTIRQ, net_rx_action);
hotcpu_notifier(dev_cpu_callback, 0);
rc = cpuhp_setup_state_nocalls(CPUHP_NET_DEV_DEAD, "net/dev:dead",
NULL, dev_cpu_dead);
WARN_ON(rc < 0);
dst_subsys_init();
rc = 0;
out:
......
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