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| author | Sebastian Andrzej Siewior <bigeasy@linutronix.de> | 2016-11-03 15:50:04 +0100 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2016-11-09 23:45:28 +0100 |
| commit | f0bf90def3528cebed45ebd81d9b5d0fa17d7422 (patch) | |
| tree | 88169b4d9b748055249150799a581e75c80c5990 /net | |
| parent | 517bbed90635a17cf27450fb385af0e502413bea (diff) | |
| download | linux-f0bf90def3528cebed45ebd81d9b5d0fa17d7422.tar.gz linux-f0bf90def3528cebed45ebd81d9b5d0fa17d7422.tar.bz2 linux-f0bf90def3528cebed45ebd81d9b5d0fa17d7422.zip | |
net/dev: Convert to hotplug state machine
Install the callbacks via the state machine.
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Thomas 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: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'net')
| -rw-r--r-- | net/core/dev.c | 16 |
1 files changed, 6 insertions, 10 deletions
diff --git a/net/core/dev.c b/net/core/dev.c index 820bac239738..8e909b2a5f2f 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -7953,18 +7953,13 @@ out: } 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: |