Return-path: Received: from mail-pb0-f48.google.com ([209.85.160.48]:63372 "EHLO mail-pb0-f48.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753819AbaA3XJs (ORCPT ); Thu, 30 Jan 2014 18:09:48 -0500 Received: by mail-pb0-f48.google.com with SMTP id rr13so3728041pbb.35 for ; Thu, 30 Jan 2014 15:09:48 -0800 (PST) From: Zoran Markovic To: linux-kernel@vger.kernel.org Cc: linux-wireless@vger.kernel.org, netdev@vger.kernel.org, Shaibal Dutta , Johannes Berg , "John W. Linville" , "David S. Miller" , Zoran Markovic Subject: [RFC PATCH] net: wireless: move regulatory timeout work to power efficient workqueue Date: Thu, 30 Jan 2014 15:08:30 -0800 Message-Id: <1391123310-6425-1-git-send-email-zoran.markovic@linaro.org> (sfid-20140131_001003_737717_F111CDCF) Sender: linux-wireless-owner@vger.kernel.org List-ID: From: Shaibal Dutta For better use of CPU idle time, allow the scheduler to select the CPU on which the timeout work of regulatory settings would be executed. This extends CPU idle residency time and saves power. This functionality is enabled when CONFIG_WQ_POWER_EFFICIENT is selected. Cc: Johannes Berg Cc: "John W. Linville" Cc: "David S. Miller" Signed-off-by: Shaibal Dutta [zoran.markovic@linaro.org: Rebased to latest kernel. Added commit message.] Signed-off-by: Zoran Markovic --- net/wireless/reg.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/net/wireless/reg.c b/net/wireless/reg.c index 9b897fc..6e21011 100644 --- a/net/wireless/reg.c +++ b/net/wireless/reg.c @@ -1703,7 +1703,8 @@ static void reg_process_hint(struct regulatory_request *reg_request) if (treatment == REG_REQ_OK || treatment == REG_REQ_ALREADY_SET) return; - schedule_delayed_work(®_timeout, msecs_to_jiffies(3142)); + queue_delayed_work(system_power_efficient_wq, + ®_timeout, msecs_to_jiffies(3142)); return; case NL80211_REGDOM_SET_BY_DRIVER: treatment = reg_process_hint_driver(wiphy, reg_request); @@ -2294,7 +2295,8 @@ static int reg_set_rd_driver(const struct ieee80211_regdomain *rd, request_wiphy = wiphy_idx_to_wiphy(driver_request->wiphy_idx); if (!request_wiphy) { - schedule_delayed_work(®_timeout, 0); + queue_delayed_work(system_power_efficient_wq, + ®_timeout, 0); return -ENODEV; } @@ -2354,7 +2356,8 @@ static int reg_set_rd_country_ie(const struct ieee80211_regdomain *rd, request_wiphy = wiphy_idx_to_wiphy(country_ie_request->wiphy_idx); if (!request_wiphy) { - schedule_delayed_work(®_timeout, 0); + queue_delayed_work(system_power_efficient_wq, + ®_timeout, 0); return -ENODEV; } -- 1.7.9.5