From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from smtp.nokia.com ([192.100.122.233]:46859 "EHLO mgw-mx06.nokia.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752735AbZHLOw3 (ORCPT ); Wed, 12 Aug 2009 10:52:29 -0400 From: Kalle Valo Subject: [PATCH 1/3] mac80211: refactor dynamic power save check To: linville@tuxdriver.com Cc: johannes@sipsolutions.net, linux-wireless@vger.kernel.org Date: Wed, 12 Aug 2009 17:52:01 +0300 Message-ID: <20090812145200.23691.17281.stgit@tikku> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Sender: linux-wireless-owner@vger.kernel.org List-ID: From: Kalle Valo Refactor dynamic power save checks to a function of it's own for better readibility. No functional changes. Signed-off-by: Kalle Valo --- net/mac80211/tx.c | 24 +++++++++++++++++++++--- 1 files changed, 21 insertions(+), 3 deletions(-) diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c index 10a1099..03005f9 100644 --- a/net/mac80211/tx.c +++ b/net/mac80211/tx.c @@ -1384,6 +1384,26 @@ static int ieee80211_skb_resize(struct ieee80211_local *local, return 0; } +static bool is_dynamic_ps_enabled(struct ieee80211_local *local) +{ + if (!(local->hw.flags & IEEE80211_HW_PS_NULLFUNC_STACK)) + /* driver doesn't support power save */ + return false; + + if (local->hw.conf.dynamic_ps_timeout <= 0) + /* dynamic power save disabled */ + return false; + + if (local->scanning) + /* we are scanning, don't enable power save */ + return false; + + if (!local->ps_sdata) + return false; + + return true; +} + static void ieee80211_xmit(struct ieee80211_sub_if_data *sdata, struct sk_buff *skb) { @@ -1396,9 +1416,7 @@ static void ieee80211_xmit(struct ieee80211_sub_if_data *sdata, dev_hold(sdata->dev); - if ((local->hw.flags & IEEE80211_HW_PS_NULLFUNC_STACK) && - local->hw.conf.dynamic_ps_timeout > 0 && - !(local->scanning) && local->ps_sdata) { + if (is_dynamic_ps_enabled(local)) { if (local->hw.conf.flags & IEEE80211_CONF_PS) { ieee80211_stop_queues_by_reason(&local->hw, IEEE80211_QUEUE_STOP_REASON_PS);