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cfg80211/mac80211: move interface counting for combination check to mac80211

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Move the counting part of the interface combination check from
cfg80211 to mac80211.

This is needed to simplify locking when the driver has to perform a
combination check by itself (eg. with channel-switch).

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
2014-02-13 11:31:59 +02:00
committed by Johannes Berg
parent 2beb6dab2d
commit 73de86a389
11 changed files with 110 additions and 80 deletions
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29
net/wireless/nl80211.c
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@@ -3155,7 +3155,6 @@ static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
struct wireless_dev *wdev = dev->ieee80211_ptr;
struct cfg80211_ap_settings params;
int err;
u8 radar_detect_width = 0;
if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
@@ -3275,24 +3274,6 @@ static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
wdev->iftype))
return -EINVAL;
err = cfg80211_chandef_dfs_required(wdev->wiphy,
&params.chandef,
NL80211_IFTYPE_AP);
if (err < 0)
return err;
if (err > 0) {
params.radar_required = true;
radar_detect_width = BIT(params.chandef.width);
}
err = cfg80211_can_use_iftype_chan(rdev, wdev, wdev->iftype,
params.chandef.chan,
CHAN_MODE_SHARED,
radar_detect_width);
if (err)
return err;
if (info->attrs[NL80211_ATTR_ACL_POLICY]) {
params.acl = parse_acl_data(&rdev->wiphy, info);
if (IS_ERR(params.acl))
@@ -5823,12 +5804,6 @@ static int nl80211_start_radar_detection(struct sk_buff *skb,
if (!rdev->ops->start_radar_detection)
return -EOPNOTSUPP;
err = cfg80211_can_use_iftype_chan(rdev, wdev, wdev->iftype,
chandef.chan, CHAN_MODE_SHARED,
BIT(chandef.width));
if (err)
return err;
cac_time_ms = cfg80211_chandef_dfs_cac_time(&rdev->wiphy, &chandef);
if (WARN_ON(!cac_time_ms))
cac_time_ms = IEEE80211_DFS_MIN_CAC_TIME_MS;
@@ -5957,6 +5932,10 @@ skip_beacons:
params.radar_required = true;
}
/* TODO: I left this here for now. With channel switch, the
* verification is a bit more complicated, because we only do
* it later when the channel switch really happens.
*/
err = cfg80211_can_use_iftype_chan(rdev, wdev, wdev->iftype,
params.chandef.chan,
CHAN_MODE_SHARED,