xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

mac80211: add pre_channel_switch driver operation

Browse Source 
Some drivers may need to prepare for a channel switch also when it is
initiated from the remote side (eg. station, P2P client).  To make
this possible, add a generic callback that can be called for all
interface types.

Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Luciano Coelho
2014-10-08 09:48:37 +03:00
committed by Johannes Berg
parent e9a21949b7
commit 6d027bcc8a
5 changed files with 86 additions and 8 deletions
Download Patch File Download Diff File Expand all files Collapse all files

11
net/mac80211/cfg.c
View File

@@ -3104,6 +3104,7 @@ __ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
{
struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
struct ieee80211_local *local = sdata->local;
struct ieee80211_channel_switch ch_switch;
struct ieee80211_chanctx_conf *conf;
struct ieee80211_chanctx *chanctx;
int err, changed = 0;
@@ -3139,6 +3140,10 @@ __ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
goto out;
}
err = drv_pre_channel_switch(sdata, &ch_switch);
if (err)
goto out;
err = ieee80211_vif_reserve_chanctx(sdata, &params->chandef,
chanctx->mode,
params->radar_required);
@@ -3152,6 +3157,12 @@ __ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
goto out;
}
ch_switch.timestamp = 0;
ch_switch.device_timestamp = 0;
ch_switch.block_tx = params->block_tx;
ch_switch.chandef = params->chandef;
ch_switch.count = params->count;
err = ieee80211_set_csa_beacon(sdata, params, &changed);
if (err) {
ieee80211_vif_unreserve_chanctx(sdata);