From f1f28aa3510ddb84c966bac65611bb866c77a092 Mon Sep 17 00:00:00 2001 From: "David S. Miller" <davem@davemloft.net> Date: Tue, 15 Jul 2008 00:08:33 -0700 Subject: [PATCH] netdev: Add addr_list_lock to struct net_device. This will be used to protect the per-device unicast and multicast address lists, as well as the callbacks into the drivers which configure such state such as ->set_rx_mode() and ->set_multicast_list(). Signed-off-by: David S. Miller <davem@davemloft.net> --- include/linux/netdevice.h | 1 + net/core/dev.c | 1 + 2 files changed, 2 insertions(+) diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index ba5c4639ea91a..fd0365219181c 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -609,6 +609,7 @@ struct net_device unsigned char addr_len; /* hardware address length */ unsigned short dev_id; /* for shared network cards */ + spinlock_t addr_list_lock; struct dev_addr_list *uc_list; /* Secondary unicast mac addresses */ int uc_count; /* Number of installed ucasts */ int uc_promisc; diff --git a/net/core/dev.c b/net/core/dev.c index feaab4898a5b9..d933d1bfa6fa0 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -3836,6 +3836,7 @@ int register_netdevice(struct net_device *dev) BUG_ON(!dev_net(dev)); net = dev_net(dev); + spin_lock_init(&dev->addr_list_lock); netdev_init_queue_locks(dev); dev->iflink = -1; -- GitLab