From: Shaibal Dutta <[email protected]> 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 <[email protected]> Cc: "John W. Linville" <[email protected]> Cc: "David S. Miller" <[email protected]> Signed-off-by: Shaibal Dutta <[email protected]> [[email protected]: Rebased to latest kernel. Added commit message.] Signed-off-by: Zoran Markovic <[email protected]> --- 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 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
