Re: [PATCH v1 1/2] wireless: ray_cs: Utilize strnlen() in parse_addr()

[Joe Perches]

On Fri, 2022-06-03 at 19:44 +0300, Andy Shevchenko wrote:
> Instead of doing simple operations and using an additional variable on stack,
> utilize strnlen() and reuse len variable.
[]
> diff --git a/drivers/net/wireless/ray_cs.c b/drivers/net/wireless/ray_cs.c
[]
> +	while (len > 0) {
> +		if ((k = hex_to_bin(in_str[len--])) != -1)
>  			out[i] = k;
>  		else
>  			return 0;

could be reversed and unindented

>  
> -		if (j == 0)
> +		if (len == 0)
>  			break;
> -		if ((k = hex_to_bin(in_str[j--])) != -1)
> +		if ((k = hex_to_bin(in_str[len--])) != -1)
>  			out[i] += k << 4;
>  		else
>  			return 0;

and here