Minki/linux
1
0
Fork 1
mirror of https://github.com/torvalds/linux.git synced 2024-12-30 06:41:43 +00:00
Code Issues Packages Projects Releases Wiki Activity

[PATCH] ieee80211: Add helpers for IBSS DFS handling

Browse Source 
To support IEEE 802.11h in IBSS, an ibss_dfs field is added to struct
ieee80211_network. In IBSS, if one STA sends a beacon with DFS info
(for radar detection), all the other STAs should receive and store
this DFS.  All STAs should send the DFS as one of the information
element in the beacon they are scheduled to send (if possible) in
the future.

Since the ibss_dfs has variable length, it must be allocated
dynamically. ieee80211_network_reset() is added to clear the ibss_dfs
field. ieee80211_network_free() is also updated to free the ibss_dfs
field if it is not NULL.

Signed-off-by: Zhu Yi <yi.zhu@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Zhu Yi 2006-01-19 16:21:35 +08:00 committed by John W. Linville
parent b79e20b609
commit 15f385982e
1 changed files with 18 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

18
net/ieee80211/ieee80211_module.c
View File

@ -82,10 +82,28 @@ static int ieee80211_networks_allocate(struct ieee80211_device *ieee)
return 0;
}
void ieee80211_network_reset(struct ieee80211_network *network)
{
if (!network)
return;
if (network->ibss_dfs) {
kfree(network->ibss_dfs);
network->ibss_dfs = NULL;
}
}
static inline void ieee80211_networks_free(struct ieee80211_device *ieee)
{
int i;
if (!ieee->networks)
return;
for (i = 0; i < MAX_NETWORK_COUNT; i++)
if (ieee->networks[i].ibss_dfs)
kfree(ieee->networks[i].ibss_dfs);
kfree(ieee->networks);
ieee->networks = NULL;
}