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authorJohannes Berg <johannes.berg@intel.com>2012-07-12 21:45:08 +0400
committerJohannes Berg <johannes.berg@intel.com>2012-07-13 18:16:11 +0400
commit5b7ccaf3fc7446e42b83a77fd7aa7ad92850acdd (patch)
treee87b3f28cdfe513de4f3527fabaaacca63eedc24 /net/wireless
parent075e08477d51709ae1998a05c35aadf59ef823b9 (diff)
downloadlinux-5b7ccaf3fc7446e42b83a77fd7aa7ad92850acdd.tar.xz
cfg80211/mac80211: re-add get_channel operation
This essentially reverts commit 2e165b818456 but introduces the get_channel operation with a new wireless_dev argument so that you can retrieve the channel per interface. This is necessary as even though we can track all interface channels (except monitor) we can't track the channel type used. Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/wireless')
-rw-r--r--net/wireless/nl80211.c16
-rw-r--r--net/wireless/wext-compat.c9
2 files changed, 18 insertions, 7 deletions
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 079fc49e3975..6b001e445718 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -1759,11 +1759,17 @@ static int nl80211_send_iface(struct sk_buff *msg, u32 pid, u32 seq, int flags,
(cfg80211_rdev_list_generation << 2)))
goto nla_put_failure;
- if (rdev->monitor_channel) {
- if (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ,
- rdev->monitor_channel->center_freq) ||
- nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
- rdev->monitor_channel_type))
+ if (rdev->ops->get_channel) {
+ struct ieee80211_channel *chan;
+ enum nl80211_channel_type channel_type;
+
+ chan = rdev->ops->get_channel(&rdev->wiphy, wdev,
+ &channel_type);
+ if (chan &&
+ (nla_put_u32(msg, NL80211_ATTR_WIPHY_FREQ,
+ chan->center_freq) ||
+ nla_put_u32(msg, NL80211_ATTR_WIPHY_CHANNEL_TYPE,
+ channel_type)))
goto nla_put_failure;
}
diff --git a/net/wireless/wext-compat.c b/net/wireless/wext-compat.c
index 7df42f541873..494379eb464f 100644
--- a/net/wireless/wext-compat.c
+++ b/net/wireless/wext-compat.c
@@ -827,6 +827,8 @@ static int cfg80211_wext_giwfreq(struct net_device *dev,
{
struct wireless_dev *wdev = dev->ieee80211_ptr;
struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
+ struct ieee80211_channel *chan;
+ enum nl80211_channel_type channel_type;
switch (wdev->iftype) {
case NL80211_IFTYPE_STATION:
@@ -834,10 +836,13 @@ static int cfg80211_wext_giwfreq(struct net_device *dev,
case NL80211_IFTYPE_ADHOC:
return cfg80211_ibss_wext_giwfreq(dev, info, freq, extra);
case NL80211_IFTYPE_MONITOR:
- if (!rdev->monitor_channel)
+ if (!rdev->ops->get_channel)
return -EINVAL;
- freq->m = rdev->monitor_channel->center_freq;
+ chan = rdev->ops->get_channel(wdev->wiphy, wdev, &channel_type);
+ if (!chan)
+ return -EINVAL;
+ freq->m = chan->center_freq;
freq->e = 6;
return 0;
default: