lk/linux-kernel-test
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

mac80211: dont use interface indices in drivers

Browse Source 
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>
This commit is contained in:
Johannes Berg
2007-12-19 01:31:26 +01:00
committed by David S. Miller
parent f653211197
commit 32bfd35d4b
29 changed files with 205 additions and 174 deletions
Download Patch File Download Diff File Expand all files Collapse all files

8
net/mac80211/ieee80211_i.h
View File

@@ -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 {