Re: [PATCH v4] Input: gunze: replace deprecated APIs and fix warning style

[Dmitry Torokhov <dmitry.torokhov@gmail.com>]

On Sun, Jul 19, 2026 at 11:07:00PM +0530, Bivash Kumar Singh wrote:
> Replace two uses of simple_strtoul() with kstrtoul() as the former
> is deprecated. kstrtoul() requires a NUL-terminated string, so copy
> the packet data into a local buffer and NUL-terminate the X and Y
> fields before parsing. Initialize x and y to 0 so that if parsing
> fails the coordinates fall back to 0 rather than reporting garbage,
> and BTN_TOUCH is always updated regardless of parse result.

Please stop forcing use of kstrtoul() where it is not fit. If you want
to stop using simple_strtoul() then add '\0' when receive '\r' in
gunze_interrupt(), and use

	if (sscanf(gunze->data + 1, "%4u,%4u", &x, &y) != 2) {
		dev_warn_ratelimited(...);
		return;
	}

Thanks.

-- 
Dmitry