linux-kernel - [PATCH] thermal: ti-soc-thermal: fix compilation warnings when !CONFIG_PM

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Date:	Sat, 7 Feb 2015 00:17:47 +0000 (UTC)
From:	Paul Walmsley <paul@...an.com>
To:	Eduardo Valentin <edubezval@...il.com>,
	Zhang Rui <rui.zhang@...el.com>
cc:	linux-pm@...r.kernel.org, linux-omap@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH] thermal: ti-soc-thermal: fix compilation warnings when
 !CONFIG_PM_SLEEP


When CONFIG_PM_SLEEP=n, the following compilation warnings appear:

drivers/thermal/ti-soc-thermal/ti-bandgap.c:1478:12: warning: ‘ti_bandgap_suspend’ defined but not used [-Wunused-function]
 static int ti_bandgap_suspend(struct device *dev)
            ^
drivers/thermal/ti-soc-thermal/ti-bandgap.c:1492:12: warning: ‘ti_bandgap_resume’ defined but not used [-Wunused-function]
 static int ti_bandgap_resume(struct device *dev)

A few years ago, suspend/resume-related code was protected by CONFIG_PM.  
But that was changed and now it's protected by CONFIG_PM_SLEEP.  Fix the 
warnings by converting the preprocessor test in the TI bandgap thermal 
sensor driver from testing CONFIG_PM to testing CONFIG_PM_SLEEP.

Signed-off-by: Paul Walmsley <paul@...an.com>
Cc: Eduardo Valentin <edubezval@...il.com>
Cc: Zhang Rui <rui.zhang@...el.com>
Cc: linux-pm@...r.kernel.org
Cc: linux-omap@...r.kernel.org
Cc: linux-kernel@...r.kernel.org
---

Non-critical.  Targeted for either v3.20-rc1 or v3.21-rc1.

Basic test reports for a series that includes this patch (and a few other 
unrelated warning cleanups) is available here:

http://www.pwsan.com/omap/testlogs/fix-omap-warnings-v3.21/20150206154619/

Compare to:

http://www.pwsan.com/omap/testlogs/test_v3.19-rc7/20150204213018/

 drivers/thermal/ti-soc-thermal/ti-bandgap.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/thermal/ti-soc-thermal/ti-bandgap.c b/drivers/thermal/ti-soc-thermal/ti-bandgap.c
index 634b6ce0e63a..62a5d449c388 100644
--- a/drivers/thermal/ti-soc-thermal/ti-bandgap.c
+++ b/drivers/thermal/ti-soc-thermal/ti-bandgap.c
@@ -1402,7 +1402,7 @@ int ti_bandgap_remove(struct platform_device *pdev)
 	return 0;
 }
 
-#ifdef CONFIG_PM
+#ifdef CONFIG_PM_SLEEP
 static int ti_bandgap_save_ctxt(struct ti_bandgap *bgp)
 {
 	int i;
-- 
2.1.4