Re: [PATCH] mmc: core: Fix build warning with !CONFIG_SUSPEND

From: Chris Ball
Date: Sat May 26 2012 - 22:53:43 EST


Hi,

On Sat, May 19 2012, Santosh Shilimkar wrote:
> With !CONFIG_SUSPEND, mmc core layer throws below build warnings.
>
> drivers/mmc/core/bus.c:125: warning: 'mmc_bus_suspend' defined but not used
> drivers/mmc/core/bus.c:136: warning: 'mmc_bus_resume' defined but not used
> drivers/mmc/core/sdio_bus.c:197: warning: 'pm_no_operation' defined but not used
>
> Fix is by wrapping suspend hooks under CONFIG_SUSPEND
>
> Signed-off-by: Santosh Shilimkar <santosh.shilimkar@xxxxxx>
> Cc: Chris Ball <cjb@xxxxxxxxxx>
> ---
> drivers/mmc/core/bus.c | 2 ++
> drivers/mmc/core/sdio_bus.c | 2 +-
> 2 files changed, 3 insertions(+), 1 deletions(-)
>
> diff --git a/drivers/mmc/core/bus.c b/drivers/mmc/core/bus.c
> index c60cee9..ca8925d 100644
> --- a/drivers/mmc/core/bus.c
> +++ b/drivers/mmc/core/bus.c
> @@ -122,6 +122,7 @@ static int mmc_bus_remove(struct device *dev)
> return 0;
> }
>
> +#ifdef CONFIG_SUSPEND
> static int mmc_bus_suspend(struct device *dev)
> {
> struct mmc_driver *drv = to_mmc_driver(dev->driver);
> @@ -143,6 +144,7 @@ static int mmc_bus_resume(struct device *dev)
> ret = drv->resume(card);
> return ret;
> }
> +#endif
>
> #ifdef CONFIG_PM_RUNTIME
>
> diff --git a/drivers/mmc/core/sdio_bus.c b/drivers/mmc/core/sdio_bus.c
> index 236842e..87d1b7e 100644
> --- a/drivers/mmc/core/sdio_bus.c
> +++ b/drivers/mmc/core/sdio_bus.c
> @@ -192,7 +192,7 @@ static int sdio_bus_remove(struct device *dev)
> return ret;
> }
>
> -#ifdef CONFIG_PM
> +#ifdef CONFIG_SUSPEND
>
> static int pm_no_operation(struct device *dev)
> {

This patch doesn't apply against mmc-next, and I think this has already
been fixed upstream -- please could you retest against Linus HEAD?

Thanks,

- Chris.
--
Chris Ball <cjb@xxxxxxxxxx> <http://printf.net/>
One Laptop Per Child
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