Re: [PATCH v3 1/2] lib/string_helpers: Introduce tokenize_user_input()

From: Andy Shevchenko
Date: Thu Sep 01 2022 - 15:35:36 EST


On Thu, Sep 1, 2022 at 8:40 PM Cezary Rojewski
<cezary.rojewski@xxxxxxxxx> wrote:
>
> Add new helper function to allow for splitting specified user string
> into a sequence of integers. Internally it makes use of get_options() so
> the returned sequence contains the integers extracted plus an additional
> element that begins the sequence and specifies the integers count.

Thanks! In general it looks good to me, but a few minor comments below.

...

> +int tokenize_user_input(const char __user *from, size_t count, int **tkns);

Not sure how I can deduct from the name what function is actually
doing. Suggested new name: int_array_parse_user().

int int_array_parse_user(const char __user *from, size_t count, int **array);

(Note that we have _user suffix for many APIs in the kernel that does
interact with user space memory)

...

> + * @tkns: Returned pointer to sequence of integers

array

...

If you are okay with this, you may add my
Reviewed-by: Andy Shevchenko <andy.shevchenko@xxxxxxxxx>

--
With Best Regards,
Andy Shevchenko