linux-kernel - [PATCH 1/5] ata: suspend/resume callbacks should be conditionally compiled on CONFIG_PM

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Date:	Tue, 16 Oct 2012 22:59:01 +0800
From:	Yuanhan Liu <yuanhan.liu@...ux.intel.com>
To:	linux-kernel@...r.kernel.org
Cc:	Yuanhan Liu <yuanhan.liu@...ux.intel.com>,
	Jeff Garzik <jgarzik@...ox.com>,
	Viresh Kumar <viresh.linux@...il.com>,
	linux-ide@...r.kernel.org, Fengguang Wu <fengguang.wu@...el.com>
Subject: [PATCH 1/5] ata: suspend/resume callbacks should be conditionally compiled on CONFIG_PM_SLEEP

This will fix warnings like following when CONFIG_PM_SLEEP is not set:

        warning: 'xxx_suspend' defined but not used [-Wunused-function]
        warning: 'xxx_resume' defined but not used [-Wunused-function]

Because
	SET_SYSTEM_SLEEP_PM_OPS(suspend_fn, resume_fn)

Only references the callbacks on CONFIG_PM_SLEEP (instead of CONFIG_PM).

Cc: Jeff Garzik <jgarzik@...ox.com>
Cc: Viresh Kumar <viresh.linux@...il.com>
Cc: linux-ide@...r.kernel.org
Signed-off-by: Yuanhan Liu <yuanhan.liu@...ux.intel.com>
Signed-off-by: Fengguang Wu <fengguang.wu@...el.com>
---
 drivers/ata/ahci_platform.c  |    2 +-
 drivers/ata/pata_arasan_cf.c |    2 +-
 drivers/ata/sata_highbank.c  |    2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/ata/ahci_platform.c b/drivers/ata/ahci_platform.c
index b1ae480..b7078af 100644
--- a/drivers/ata/ahci_platform.c
+++ b/drivers/ata/ahci_platform.c
@@ -238,7 +238,7 @@ static int __devexit ahci_remove(struct platform_device *pdev)
 	return 0;
 }
 
-#ifdef CONFIG_PM
+#ifdef CONFIG_PM_SLEEP
 static int ahci_suspend(struct device *dev)
 {
 	struct ahci_platform_data *pdata = dev_get_platdata(dev);
diff --git a/drivers/ata/pata_arasan_cf.c b/drivers/ata/pata_arasan_cf.c
index 26201eb..3fe2f66 100644
--- a/drivers/ata/pata_arasan_cf.c
+++ b/drivers/ata/pata_arasan_cf.c
@@ -908,7 +908,7 @@ static int __devexit arasan_cf_remove(struct platform_device *pdev)
 	return 0;
 }
 
-#ifdef CONFIG_PM
+#ifdef CONFIG_PM_SLEEP
 static int arasan_cf_suspend(struct device *dev)
 {
 	struct ata_host *host = dev_get_drvdata(dev);
diff --git a/drivers/ata/sata_highbank.c b/drivers/ata/sata_highbank.c
index 0d7c4c2..b045b19 100644
--- a/drivers/ata/sata_highbank.c
+++ b/drivers/ata/sata_highbank.c
@@ -378,7 +378,7 @@ static int __devexit ahci_highbank_remove(struct platform_device *pdev)
 	return 0;
 }
 
-#ifdef CONFIG_PM
+#ifdef CONFIG_PM_SLEEP
 static int ahci_highbank_suspend(struct device *dev)
 {
 	struct ata_host *host = dev_get_drvdata(dev);
-- 
1.7.7.6

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