2015-02-07 00:17:50

by Paul Walmsley

[permalink] [raw]
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 <[email protected]>
Cc: Eduardo Valentin <[email protected]>
Cc: Zhang Rui <[email protected]>
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
---

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


2015-02-09 15:00:36

by Nishanth Menon

[permalink] [raw]
Subject: Re: [PATCH] thermal: ti-soc-thermal: fix compilation warnings when !CONFIG_PM_SLEEP

On 00:17-20150207, Paul Walmsley wrote:
>
> 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 <[email protected]>
> Cc: Eduardo Valentin <[email protected]>
> Cc: Zhang Rui <[email protected]>
> Cc: [email protected]
> Cc: [email protected]
> Cc: [email protected]
> ---
>
> 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


I am a little confused:
https://patchwork.kernel.org/patch/5792411/ was already posted. would
you suggest improvements?

--
Regards,
Nishanth Menon

2015-02-09 15:53:25

by Paul Walmsley

[permalink] [raw]
Subject: Re: [PATCH] thermal: ti-soc-thermal: fix compilation warnings when !CONFIG_PM_SLEEP

On Mon, 9 Feb 2015, Nishanth Menon wrote:

> On 00:17-20150207, Paul Walmsley wrote:
> >
> > 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 <[email protected]>
> > Cc: Eduardo Valentin <[email protected]>
> > Cc: Zhang Rui <[email protected]>
> > Cc: [email protected]
> > Cc: [email protected]
> > Cc: [email protected]
> > ---
> >
> > 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
>
>
> I am a little confused:
> https://patchwork.kernel.org/patch/5792411/ was already posted. would
> you suggest improvements?

Oh, nothing to be confused by, I just missed the earlier patch. I
withdraw mine.


- Paul