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[PATCH] memory: atmel-ebi: mark PM ops as __maybe_unused

Started byArnd Bergmann <arnd@arndb.de>
First post2017-04-19 19:50 +0200
Last post2017-04-19 20:00 +0200
Articles 2 — 2 participants

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  [PATCH] memory: atmel-ebi: mark PM ops as __maybe_unused Arnd Bergmann <arnd@arndb.de> - 2017-04-19 19:50 +0200
    Re: [PATCH] memory: atmel-ebi: mark PM ops as __maybe_unused Alexandre Belloni <alexandre.belloni@free-electrons.com> - 2017-04-19 20:00 +0200

#1626642 — [PATCH] memory: atmel-ebi: mark PM ops as __maybe_unused

FromArnd Bergmann <arnd@arndb.de>
Date2017-04-19 19:50 +0200
Subject[PATCH] memory: atmel-ebi: mark PM ops as __maybe_unused
Message-ID<ty1TP-6kT-5@gated-at.bofh.it>
We get a harmless warning without CONFIG_PM:

drivers/memory/atmel-ebi.c:584:12: error: 'atmel_ebi_resume' defined but not used [-Werror=unused-function]

Marking the function as __maybe_unused does the right thing here
and drops it silently when unused.

Fixes: a483fb10e5ea ("memory: atmel-ebi: Add PM ops")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
 drivers/memory/atmel-ebi.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/memory/atmel-ebi.c b/drivers/memory/atmel-ebi.c
index 35910f945bfa..99e644cda4d1 100644
--- a/drivers/memory/atmel-ebi.c
+++ b/drivers/memory/atmel-ebi.c
@@ -581,7 +581,7 @@ static int atmel_ebi_probe(struct platform_device *pdev)
 	return of_platform_populate(np, NULL, NULL, dev);
 }
 
-static int atmel_ebi_resume(struct device *dev)
+static __maybe_unused int atmel_ebi_resume(struct device *dev)
 {
 	struct atmel_ebi *ebi = dev_get_drvdata(dev);
 	struct atmel_ebi_dev *ebid;
-- 
2.9.0

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#1626664

FromAlexandre Belloni <alexandre.belloni@free-electrons.com>
Date2017-04-19 20:00 +0200
Message-ID<ty23w-6o6-29@gated-at.bofh.it>
In reply to#1626642
On 19/04/2017 at 19:48:07 +0200, Arnd Bergmann wrote:
> We get a harmless warning without CONFIG_PM:
> 
> drivers/memory/atmel-ebi.c:584:12: error: 'atmel_ebi_resume' defined but not used [-Werror=unused-function]
> 
> Marking the function as __maybe_unused does the right thing here
> and drops it silently when unused.
> 
> Fixes: a483fb10e5ea ("memory: atmel-ebi: Add PM ops")
> Signed-off-by: Arnd Bergmann <arnd@arndb.de>

Sure,

Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>

I think you can safely take it through arm-soc directly.

> ---
>  drivers/memory/atmel-ebi.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/memory/atmel-ebi.c b/drivers/memory/atmel-ebi.c
> index 35910f945bfa..99e644cda4d1 100644
> --- a/drivers/memory/atmel-ebi.c
> +++ b/drivers/memory/atmel-ebi.c
> @@ -581,7 +581,7 @@ static int atmel_ebi_probe(struct platform_device *pdev)
>  	return of_platform_populate(np, NULL, NULL, dev);
>  }
>  
> -static int atmel_ebi_resume(struct device *dev)
> +static __maybe_unused int atmel_ebi_resume(struct device *dev)
>  {
>  	struct atmel_ebi *ebi = dev_get_drvdata(dev);
>  	struct atmel_ebi_dev *ebid;
> -- 
> 2.9.0
> 

-- 
Alexandre Belloni, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com

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