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

cfg80211: reduce monitor interface tracking

Browse Source 
Revert commit b78e8ceac2
("cfg80211: track monitor channel") and remove the
set_monitor_enabled() callback.

Due to the tracking happening in NETDEV_PRE_UP, it had
introduced bugs because the monitor interface callback
would be called before the device was started. It looks
like there's no way to fix this, and using NETDEV_PRE_UP
is broken anyway (since there's no NETDEV_UP_FAIL), so
remove all that code, track interfaces in NETDEV_UP and
also stop tracking the monitor channel in cfg80211.

This mostly reverts to before the tracking, except that
we keep the interface count tracking so that setting the
monitor channel can be rejected properly.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Johannes Berg
2012-07-12 22:19:48 +02:00
parent 5b7ccaf3fc
commit 4290cb4bf2
4 changed files with 2 additions and 62 deletions
Download Patch File Download Diff File Expand all files Collapse all files

9
net/wireless/chan.c
View File

@@ -82,7 +82,6 @@ int cfg80211_set_monitor_channel(struct cfg80211_registered_device *rdev,
int freq, enum nl80211_channel_type chantype)
{
struct ieee80211_channel *chan;
int err;
if (!rdev->ops->set_monitor_channel)
return -EOPNOTSUPP;
@@ -93,13 +92,7 @@ int cfg80211_set_monitor_channel(struct cfg80211_registered_device *rdev,
if (!chan)
return -EINVAL;
err = rdev->ops->set_monitor_channel(&rdev->wiphy, chan, chantype);
if (!err) {
rdev->monitor_channel = chan;
rdev->monitor_channel_type = chantype;
}
return err;
return rdev->ops->set_monitor_channel(&rdev->wiphy, chan, chantype);
}
void