diff options
| author | Arik Nemtsov <arik@wizery.com> | 2014-12-15 19:26:02 +0200 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2014-12-17 11:49:55 +0100 |
| commit | db8dfee57d37d2cd14a750477babbae52b69a494 (patch) | |
| tree | 6d52011ec10a6891b45886df8e00983d75a773cd | |
| parent | 1bdd716cbccabc8127fbbaaa663c3090302ef78b (diff) | |
| download | linux-db8dfee57d37d2cd14a750477babbae52b69a494.tar.bz2 | |
cfg80211: avoid intersection when applying self-managed reg
The custom-reg handling function can currently only add flags to a given
channel. This results in stale flags being left applied. In some cases
a channel was disabled and even the orig_flags were changed to reflect
this.
Previously the API was designed for a single invocation before wiphy
registration, so this didn't matter. The previous approach doesn't scale
well to self-managed regulatory devices, particularly when a more
permissive regdom is applied after a restrictive one.
Signed-off-by: Arik Nemtsov <arikx.nemtsov@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
| -rw-r--r-- | net/wireless/reg.c | 16 |
1 files changed, 13 insertions, 3 deletions
diff --git a/net/wireless/reg.c b/net/wireless/reg.c index c040f8a0f1ed..9a5411cdf5e8 100644 --- a/net/wireless/reg.c +++ b/net/wireless/reg.c @@ -1680,8 +1680,12 @@ static void handle_channel_custom(struct wiphy *wiphy, if (IS_ERR(reg_rule)) { REG_DBG_PRINT("Disabling freq %d MHz as custom regd has no rule that fits it\n", chan->center_freq); - chan->orig_flags |= IEEE80211_CHAN_DISABLED; - chan->flags = chan->orig_flags; + if (wiphy->regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED) { + chan->flags |= IEEE80211_CHAN_DISABLED; + } else { + chan->orig_flags |= IEEE80211_CHAN_DISABLED; + chan->flags = chan->orig_flags; + } return; } @@ -1706,7 +1710,13 @@ static void handle_channel_custom(struct wiphy *wiphy, chan->dfs_state = NL80211_DFS_USABLE; chan->beacon_found = false; - chan->flags |= map_regdom_flags(reg_rule->flags) | bw_flags; + + if (wiphy->regulatory_flags & REGULATORY_WIPHY_SELF_MANAGED) + chan->flags = chan->orig_flags | bw_flags | + map_regdom_flags(reg_rule->flags); + else + chan->flags |= map_regdom_flags(reg_rule->flags) | bw_flags; + chan->max_antenna_gain = (int) MBI_TO_DBI(power_rule->max_antenna_gain); chan->max_reg_power = chan->max_power = (int) MBM_TO_DBM(power_rule->max_eirp); |