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authorChun-Yeow Yeoh <yeohchunyeow@gmail.com>2013-12-02 16:05:49 +0800
committerJohannes Berg <johannes.berg@intel.com>2013-12-04 09:12:10 +0100
commit33dde2bfe8ca97bdd8253bc0496482b048fa0b32 (patch)
treebe7aa2dca5822741d0e81b796f500c5e21cde96b /net/wireless/mesh.c
parentad7e718c9b4f717823fd920a0103f7b0fb06183f (diff)
downloadlinux-33dde2bfe8ca97bdd8253bc0496482b048fa0b32.tar.bz2
nl80211: allow the use of DFS channel in mesh
This permits the use of DFS channel once the CAC is conducted and no radar is detected. Signed-off-by: Chun-Yeow Yeoh <yeohchunyeow@gmail.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/wireless/mesh.c')
-rw-r--r--net/wireless/mesh.c13
1 files changed, 11 insertions, 2 deletions
diff --git a/net/wireless/mesh.c b/net/wireless/mesh.c
index b0e1869de7de..9c7a11ae7936 100644
--- a/net/wireless/mesh.c
+++ b/net/wireless/mesh.c
@@ -99,6 +99,7 @@ int __cfg80211_join_mesh(struct cfg80211_registered_device *rdev,
const struct mesh_config *conf)
{
struct wireless_dev *wdev = dev->ieee80211_ptr;
+ u8 radar_detect_width = 0;
int err;
BUILD_BUG_ON(IEEE80211_MAX_SSID_LEN != IEEE80211_MAX_MESH_ID_LEN);
@@ -177,8 +178,16 @@ int __cfg80211_join_mesh(struct cfg80211_registered_device *rdev,
if (!cfg80211_reg_can_beacon(&rdev->wiphy, &setup->chandef))
return -EINVAL;
- err = cfg80211_can_use_chan(rdev, wdev, setup->chandef.chan,
- CHAN_MODE_SHARED);
+ err = cfg80211_chandef_dfs_required(wdev->wiphy, &setup->chandef);
+ if (err < 0)
+ return err;
+ if (err)
+ radar_detect_width = BIT(setup->chandef.width);
+
+ err = cfg80211_can_use_iftype_chan(rdev, wdev, wdev->iftype,
+ setup->chandef.chan,
+ CHAN_MODE_SHARED,
+ radar_detect_width);
if (err)
return err;