Return-path: Received: from nbd.name ([46.4.11.11]:42521 "EHLO nbd.name" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756701Ab2JQL4c (ORCPT ); Wed, 17 Oct 2012 07:56:32 -0400 From: Felix Fietkau To: linux-wireless@vger.kernel.org Cc: linville@tuxdriver.com, johannes@sipsolutions.net, mcgrof@qca.qualcomm.com Subject: [PATCH v3 3.7 1/2] cfg80211: fix antenna gain handling Date: Wed, 17 Oct 2012 13:56:19 +0200 Message-Id: <1350474980-59623-1-git-send-email-nbd@openwrt.org> (sfid-20121017_135640_599562_9A719EDD) Sender: linux-wireless-owner@vger.kernel.org List-ID: No driver initializes chan->max_antenna_gain to something sensible, and the only place where it is being used right now is inside ath9k. This leads to ath9k potentially using less tx power than it can use, which can decrease performance/range in some rare cases. Rather than going through every single driver, this patch initializes chan->orig_mag in wiphy_register(), ignoring whatever value the driver left in there. If a driver for some reason wishes to limit it independent from regulatory rulesets, it can do so internally. Signed-off-by: Felix Fietkau Cc: stable@vger.kernel.org --- net/wireless/core.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/net/wireless/core.c b/net/wireless/core.c index 443d4d7..3f72530 100644 --- a/net/wireless/core.c +++ b/net/wireless/core.c @@ -526,8 +526,7 @@ int wiphy_register(struct wiphy *wiphy) for (i = 0; i < sband->n_channels; i++) { sband->channels[i].orig_flags = sband->channels[i].flags; - sband->channels[i].orig_mag = - sband->channels[i].max_antenna_gain; + sband->channels[i].orig_mag = INT_MAX; sband->channels[i].orig_mpwr = sband->channels[i].max_power; sband->channels[i].band = band; -- 1.7.12.2