On Wed, May 15, 2013 at 04:46:44PM +0800, Huang Shijie wrote:
> Add a new sys node to show the ecc step size.
> The application then can uses this node to get the ecc step
> size.
>
> Signed-off-by: Huang Shijie <b32...@freescale.com>
> ---
> drivers/mtd/mtdcore.c | 11 +++++++++++
> 1 files changed, 11 insertions(+), 0 deletions(-)
>
> diff --git a/drivers/mtd/mtdcore.c b/drivers/mtd/mtdcore.c
> index c400c57..63903b9 100644
> --- a/drivers/mtd/mtdcore.c
> +++ b/drivers/mtd/mtdcore.c
> @@ -285,6 +285,16 @@ static DEVICE_ATTR(bitflip_threshold, S_IRUGO | S_IWUSR,
> mtd_bitflip_threshold_show,
> mtd_bitflip_threshold_store);
>
> +static ssize_t mtd_ecc_step_show(struct device *dev,
> + struct device_attribute *attr, char *buf)
> +{
> + struct mtd_info *mtd = dev_get_drvdata(dev);
> +
> + return snprintf(buf, PAGE_SIZE, "%lu\n", (unsigned long)mtd->ecc_step);
ecc_step is an unsigned int, so why cast to unsigned long? Just use:
return snprintf(buf, PAGE_SIZE, "%u\n", mtd->ecc_step);
> +
> +}
> +static DEVICE_ATTR(ecc_step, S_IRUGO, mtd_ecc_step_show, NULL);
> +
> static struct attribute *mtd_attrs[] = {
> &dev_attr_type.attr,
> &dev_attr_flags.attr,
...
Brian
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