On Wed, May 16, 2018 at 12:15 PM, Yisheng Xie <xieyishe...@huawei.com> wrote:
> The helper returns index of the matching string in an array,
> use it to simpler the code.
IIRC I sent the patch with the same semantics week or so ago against this file.
>
> Signed-off-by: Yisheng Xie <xieyishe...@huawei.com>
> ---
> drivers/hwtracing/intel_th/pti.c | 11 ++++-------
> 1 file changed, 4 insertions(+), 7 deletions(-)
>
> diff --git a/drivers/hwtracing/intel_th/pti.c
> b/drivers/hwtracing/intel_th/pti.c
> index 5669433..75cb368 100644
> --- a/drivers/hwtracing/intel_th/pti.c
> +++ b/drivers/hwtracing/intel_th/pti.c
> @@ -272,15 +272,12 @@ static ssize_t lpp_dest_store(struct device *dev,
> struct device_attribute *attr,
> const char *buf, size_t size)
> {
> struct pti_device *pti = dev_get_drvdata(dev);
> - ssize_t ret = -EINVAL;
> - int i;
> + ssize_t ret;
>
> - for (i = 0; i < ARRAY_SIZE(lpp_dest_str); i++)
> - if (sysfs_streq(buf, lpp_dest_str[i]))
> - break;
> + ret = sysfs_match_string(lpp_dest_str, buf);
>
> - if (i < ARRAY_SIZE(lpp_dest_str) && pti->lpp_dest_mask & BIT(i)) {
> - pti->lpp_dest = i;
> + if (ret >= 0 && pti->lpp_dest_mask & BIT(ret)) {
> + pti->lpp_dest = ret;
> ret = size;
> }
>
> --
> 1.7.12.4
>
--
With Best Regards,
Andy Shevchenko
