diff options
| -rw-r--r-- | net/wireless/reg.c | 51 |
1 files changed, 9 insertions, 42 deletions
diff --git a/net/wireless/reg.c b/net/wireless/reg.c index 2d1d183ae6f..f386981734a 100644 --- a/net/wireless/reg.c +++ b/net/wireless/reg.c @@ -1762,6 +1762,10 @@ static bool reg_same_country_ie_hint(struct wiphy *wiphy, return false; } +/* + * We hold wdev_lock() here so we cannot hold cfg80211_mutex() and + * therefore cannot iterate over the rdev list here. + */ void regulatory_hint_11d(struct wiphy *wiphy, u8 *country_ie, u8 country_ie_len) @@ -1804,51 +1808,14 @@ void regulatory_hint_11d(struct wiphy *wiphy, * We will run this for *every* beacon processed for the BSSID, so * we optimize an early check to exit out early if we don't have to * do anything + * + * We leave conflict resolution to the workqueue, where can hold + * cfg80211_mutex. */ if (likely(last_request->initiator == NL80211_REGDOM_SET_BY_COUNTRY_IE && - wiphy_idx_valid(last_request->wiphy_idx))) { - struct cfg80211_registered_device *rdev_last_ie; - - rdev_last_ie = - cfg80211_rdev_by_wiphy_idx(last_request->wiphy_idx); - - /* - * Lets keep this simple -- we trust the first AP - * after we intersect with CRDA - */ - if (likely(&rdev_last_ie->wiphy == wiphy)) { - /* - * Ignore IEs coming in on this wiphy with - * the same alpha2 and environment cap - */ - if (likely(alpha2_equal(rdev_last_ie->country_ie_alpha2, - alpha2) && - env == rdev_last_ie->env)) { - goto out; - } - /* - * the wiphy moved on to another BSSID or the AP - * was reconfigured. XXX: We need to deal with the - * case where the user suspends and goes to goes - * to another country, and then gets IEs from an - * AP with different settings - */ - goto out; - } else { - /* - * Ignore IEs coming in on two separate wiphys with - * the same alpha2 and environment cap - */ - if (likely(alpha2_equal(rdev_last_ie->country_ie_alpha2, - alpha2) && - env == rdev_last_ie->env)) { - goto out; - } - /* We could potentially intersect though */ - goto out; - } - } + wiphy_idx_valid(last_request->wiphy_idx))) + goto out; rd = country_ie_2_rd(country_ie, country_ie_len, &checksum); if (!rd) |