From 32bfd35d4b63bd63de4bb0d791ef049c3c868726 Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Wed, 19 Dec 2007 01:31:26 +0100 Subject: mac80211: dont use interface indices in drivers This patch gets rid of the if_id stuff where possible in favour of a new per-virtual-interface structure "struct ieee80211_vif". This structure is located at the end of the per-interface structure and contains a variable length driver-use data area. This has two advantages: * removes the need to look up interfaces by if_id, this is better for working with network namespaces and performance * allows drivers to store and retrieve per-interface data without having to allocate own lists/hash tables Signed-off-by: Johannes Berg Signed-off-by: John W. Linville --- net/mac80211/ieee80211_iface.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'net/mac80211/ieee80211_iface.c') diff --git a/net/mac80211/ieee80211_iface.c b/net/mac80211/ieee80211_iface.c index 7cfd866..b720663 100644 --- a/net/mac80211/ieee80211_iface.c +++ b/net/mac80211/ieee80211_iface.c @@ -47,7 +47,7 @@ int ieee80211_if_add(struct net_device *dev, const char *name, int ret; ASSERT_RTNL(); - ndev = alloc_netdev(sizeof(struct ieee80211_sub_if_data), + ndev = alloc_netdev(sizeof(*sdata) + local->hw.vif_data_size, name, ieee80211_if_setup); if (!ndev) return -ENOMEM; -- cgit v1.1