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Commit 845f3351 authored by Shaibal Dutta's avatar Shaibal Dutta Committed by Johannes Berg
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net: wireless: move regulatory timeout work to power efficient workqueue 



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: "John W. Linville" <linville@tuxdriver.com>
Cc: "David S. Miller" <davem@davemloft.net>
Signed-off-by: default avatarShaibal Dutta <shaibal.dutta@broadcom.com>
[zoran.markovic@linaro.org: Rebased to latest kernel. Added commit message.]
Signed-off-by: default avatarZoran Markovic <zoran.markovic@linaro.org>
Signed-off-by: default avatarJohannes Berg <johannes.berg@intel.com>
parent b4ba544c

net/wireless/reg.c

+6 −3
Original line number Diff line number Diff line
@@ -1701,7 +1701,8 @@ static void reg_process_hint(struct regulatory_request *reg_request) 
		if (treatment == REG_REQ_OK ||

		    treatment == REG_REQ_ALREADY_SET)

			return;

		schedule_delayed_work(&reg_timeout, msecs_to_jiffies(3142));

		queue_delayed_work(system_power_efficient_wq,

				   &reg_timeout, msecs_to_jiffies(3142));

		return;

	case NL80211_REGDOM_SET_BY_DRIVER:

		if (!wiphy)
@@ -2301,7 +2302,8 @@ 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(&reg_timeout, 0);

		queue_delayed_work(system_power_efficient_wq,

				   &reg_timeout, 0);

		return -ENODEV;

	}
@@ -2361,7 +2363,8 @@ 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(&reg_timeout, 0);

		queue_delayed_work(system_power_efficient_wq,

				   &reg_timeout, 0);

		return -ENODEV;

	}