From 5ce543d148bf7590294e76bc30f4c4d6777fe094 Mon Sep 17 00:00:00 2001 From: Rajkumar Manoharan Date: Wed, 7 Dec 2011 21:50:08 +0530 Subject: [PATCH] cfg80211: Restore orig channel values upon disconnect When we restore regulatory settings the world regulatory domain is properly reset on cfg80211 (or user prefered regulatory domain) but we were never setting back channel values for drivers that use WIPHY_FLAG_CUSTOM_REGULATORY. Set these values up again by using the orig_ channel parameters. This fixes restoring custom regulatory settings upon disconnect events. Cc: compat@orbit-lab.org Cc: Paul Stewart Cc: Rajkumar Manoharan Cc: Senthilkumar Balasubramanian Signed-off-by: Rajkumar Manoharan Signed-off-by: Luis R. Rodriguez Signed-off-by: John W. Linville --- net/wireless/reg.c | 26 ++++++++++++++++++++++++++ 1 file changed, 26 insertions(+) diff --git a/net/wireless/reg.c b/net/wireless/reg.c index 481caafc6ba5..c45c8b772ddd 100644 --- a/net/wireless/reg.c +++ b/net/wireless/reg.c @@ -1792,6 +1792,26 @@ static void restore_alpha2(char *alpha2, bool reset_user) REG_DBG_PRINT("Restoring regulatory settings\n"); } +static void restore_custom_reg_settings(struct wiphy *wiphy) +{ + struct ieee80211_supported_band *sband; + enum ieee80211_band band; + struct ieee80211_channel *chan; + int i; + + for (band = 0; band < IEEE80211_NUM_BANDS; band++) { + sband = wiphy->bands[band]; + if (!sband) + continue; + for (i = 0; i < sband->n_channels; i++) { + chan = &sband->channels[i]; + chan->flags = chan->orig_flags; + chan->max_antenna_gain = chan->orig_mag; + chan->max_power = chan->orig_mpwr; + } + } +} + /* * Restoring regulatory settings involves ingoring any * possibly stale country IE information and user regulatory @@ -1813,6 +1833,7 @@ static void restore_regulatory_settings(bool reset_user) struct reg_beacon *reg_beacon, *btmp; struct regulatory_request *reg_request, *tmp; LIST_HEAD(tmp_reg_req_list); + struct cfg80211_registered_device *rdev; mutex_lock(&cfg80211_mutex); mutex_lock(®_mutex); @@ -1861,6 +1882,11 @@ static void restore_regulatory_settings(bool reset_user) /* First restore to the basic regulatory settings */ cfg80211_regdomain = cfg80211_world_regdom; + list_for_each_entry(rdev, &cfg80211_rdev_list, list) { + if (rdev->wiphy.flags & WIPHY_FLAG_CUSTOM_REGULATORY) + restore_custom_reg_settings(&rdev->wiphy); + } + mutex_unlock(®_mutex); mutex_unlock(&cfg80211_mutex); -- 2.39.5