Return-path: Received: from mga09.intel.com ([134.134.136.24]:24176 "EHLO mga09.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756675AbaDWHUr (ORCPT ); Wed, 23 Apr 2014 03:20:47 -0400 From: Ilan Peer To: linux-wireless@vger.kernel.org Cc: mcgrof@do-not-panic.com, Ilan Peer Subject: [PATCH] cfg80211: Fix GO Concurrent relaxation on UNII-3 Date: Wed, 23 Apr 2014 09:22:58 +0300 Message-Id: <1398234178-24685-1-git-send-email-ilan.peer@intel.com> (sfid-20140423_092926_556077_B4B8B67A) Sender: linux-wireless-owner@vger.kernel.org List-ID: At some locations, channels 149-165 are considered a single bundle, while at some other locations, e.g., Indonesia, channels 149-161 are considered a single bundle, while channel 165 belongs to a different bundle. This means that: 1. A station interface connection to an AP on channel 165 allows the instantiation of a P2P GO on channels 149-165. 2. A station interface connection to an AP on channels 149-161 does NOT allow the instantiation of a P2P GO on channel 165. Fix this. Signed-off-by: Ilan Peer --- Applied on top of mac80211-next/master. net/wireless/chan.c | 18 +++++++++++++++++- 1 file changed, 17 insertions(+), 1 deletion(-) diff --git a/net/wireless/chan.c b/net/wireless/chan.c index c61bcdd..fb8f6a3 100644 --- a/net/wireless/chan.c +++ b/net/wireless/chan.c @@ -750,8 +750,24 @@ static bool cfg80211_go_permissive_chan(struct cfg80211_registered_device *rdev, r1 = cfg80211_get_unii(chan->center_freq); r2 = cfg80211_get_unii(other_chan->center_freq); - if (r1 != -EINVAL && r1 == r2) + if (r1 != -EINVAL && r1 == r2) { + /* + * At some locations channels 149-165 are considered a + * bundle, but at other locations, e.g., Indonesia, + * channels 149-161 are considered a bundle while + * channel 165 is left out and considered to be in a + * different bundle. Thus, in case that there is a + * station interface connected to an AP on channel 165, + * it is assumed that channels 149-161 are allowed for + * GO operations. However, having a station interface + * connected to an AP on channels 149-161, does not + * allow GO operation on channel 165. + */ + if (chan->center_freq == 5825 && + other_chan->center_freq != 5825) + continue; return true; + } } return false; -- 1.7.10.4