On Wed, Nov 16, 2016 at 05:20:24PM +0200, Heikki Krogerus wrote:
> Hi Greg,
>
> On Mon, Nov 14, 2016 at 10:51:48AM +0100, Greg KH wrote:
> > > +static int sysfs_strmatch(const char * const *array, size_t n, const char *str)
> > > +{
> > > + const char *item;
> > > + int index;
> > > +
> > > + for (index = 0; index < n; index++) {
> > > + item = array[index];
> > > + if (!item)
> > > + break;
> > > + if (sysfs_streq(item, str))
> > > + return index;
> > > + }
> > > +
> > > + return -EINVAL;
> > > +}
> >
> > should we make this a core sysfs function?
>
> Last question before I send v11. Is the following (the helper) OK?
>
>
> diff --git a/include/linux/string.h b/include/linux/string.h
> index 26b6f6a..5606810 100644
> --- a/include/linux/string.h
> +++ b/include/linux/string.h
> @@ -135,6 +135,16 @@ static inline int strtobool(const char *s, bool *res)
> }
>
> int match_string(const char * const *array, size_t n, const char *string);
> +int __sysfs_strmatch(const char * const *array, size_t n, const char *string);
> +
> +/**
> + * sysfs_strmatch - matches given string in an array
> + * @a: array of strings
> + * @s: string to match with
> + *
> + * Helper for __sysfs_strmatch(). Calculates the size of @a automatically.
> + */
> +#define sysfs_strmatch(a, s) __sysfs_strmatch(a, ARRAY_SIZE(a), s)
People will bikeshed the name. Why not just use sysfs_match_string() as
this does the same as match_string, but calls sysfs_string instead of
strcmp().
thanks,
greg k-h
--
To unsubscribe from this list: send the line "unsubscribe linux-usb" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
