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authorJohannes Berg <johannes@sipsolutions.net>2007-12-19 01:31:26 +0100
committerDavid S. Miller <davem@davemloft.net>2008-01-28 15:09:36 -0800
commit32bfd35d4b63bd63de4bb0d791ef049c3c868726 (patch)
treec1c213a35a00bcbe71a2ecc6521e19dec66cf6eb /net/mac80211/ieee80211_iface.c
parentf653211197f3841f383fa9757ef8ce182c6cf627 (diff)
downloadop-kernel-dev-32bfd35d4b63bd63de4bb0d791ef049c3c868726.zip
op-kernel-dev-32bfd35d4b63bd63de4bb0d791ef049c3c868726.tar.gz
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 <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'net/mac80211/ieee80211_iface.c')
-rw-r--r--net/mac80211/ieee80211_iface.c2
1 files changed, 1 insertions, 1 deletions
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;
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