linux-kernel - [PATCH] cpuidle: Move cpuidle driver forward before acpi driver in Makefile

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Message-Id: <20220713082426.850911-1-dapeng1.mi@intel.com>
Date:   Wed, 13 Jul 2022 16:24:26 +0800
From:   Dapeng Mi <dapeng1.mi@...el.com>
To:     rafael@...nel.org, mst@...hat.com, arnd@...db.de,
        bvanassche@....org
Cc:     linux-kernel@...r.kernel.org, linux-pm@...r.kernel.org,
        Dapeng Mi <dapeng1.mi@...el.com>
Subject: [PATCH] cpuidle: Move cpuidle driver forward before acpi driver in Makefile

As long as Kconfig ACPI_PROCESSOR is enabled, ACPI_PROCESSOR would
select ACPI_PROCESSOR_IDLE and acpi_idle driver is enabled. But
in current driver loading order acpi_idle driver is always loaded
before cpuidle_haltpoll driver. This leads to cpuidle_hatpoll driver
has no chance to be loaded when it's enabled.

Thus, move cpuidle driver forward before acpi driver and make
cpuidle-hatpoll driver has a chance to be run when it's enabled.

Signed-off-by: Dapeng Mi <dapeng1.mi@...el.com>
---
 drivers/Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/Makefile b/drivers/Makefile
index 9a30842b22c5..921ed481b520 100644
--- a/drivers/Makefile
+++ b/drivers/Makefile
@@ -26,6 +26,7 @@ obj-y				+= idle/
 # IPMI must come before ACPI in order to provide IPMI opregion support
 obj-y				+= char/ipmi/
 
+obj-$(CONFIG_CPU_IDLE)		+= cpuidle/
 obj-$(CONFIG_ACPI)		+= acpi/
 
 # PnP must come after ACPI since it will eventually need to check if acpi
@@ -126,7 +127,6 @@ obj-$(CONFIG_EDAC)		+= edac/
 obj-$(CONFIG_EISA)		+= eisa/
 obj-$(CONFIG_PM_OPP)		+= opp/
 obj-$(CONFIG_CPU_FREQ)		+= cpufreq/
-obj-$(CONFIG_CPU_IDLE)		+= cpuidle/
 obj-y				+= mmc/
 obj-y				+= ufs/
 obj-$(CONFIG_MEMSTICK)		+= memstick/
-- 
2.30.2