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SubjectRe: [PATCH] intel_th: pti: Convert to use sysfs_match_string() helper
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Hi Andy,

On 2018/5/22 6:16, Andy Shevchenko wrote:
> On Wed, May 16, 2018 at 12:15 PM, Yisheng Xie <xieyisheng1@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.

Right, I get it. Sorry about that.

Thanks
Yisheng
>
>>
>> Signed-off-by: Yisheng Xie <xieyisheng1@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
>>
>
>
>

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