diff options
| author | Johannes Berg <johannes@sipsolutions.net> | 2007-12-19 01:31:26 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2008-01-28 15:09:36 -0800 |
| commit | 32bfd35d4b63bd63de4bb0d791ef049c3c868726 (patch) | |
| tree | c1c213a35a00bcbe71a2ecc6521e19dec66cf6eb /net/mac80211/ieee80211_i.h | |
| parent | f653211197f3841f383fa9757ef8ce182c6cf627 (diff) | |
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_i.h')
| -rw-r--r-- | net/mac80211/ieee80211_i.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h index b898b316bda1..c551a7f379e0 100644 --- a/net/mac80211/ieee80211_i.h +++ b/net/mac80211/ieee80211_i.h @@ -387,8 +387,16 @@ struct ieee80211_sub_if_data { struct dentry *default_key; } debugfs; #endif + /* must be last, dynamically sized area in this! */ + struct ieee80211_vif vif; }; +static inline +struct ieee80211_sub_if_data *vif_to_sdata(struct ieee80211_vif *p) +{ + return container_of(p, struct ieee80211_sub_if_data, vif); +} + #define IEEE80211_DEV_TO_SUB_IF(dev) netdev_priv(dev) enum { |