[PATCH] usb: fastboot: increase max answer size to 256

Marco Felsch m.felsch at pengutronix.de
Mon Jan 26 05:53:36 PST 2026


Hi Sascha,

On 26-01-26, Sascha Hauer wrote:

..
> While at it use a define for the maximum answer length to avoid
> repeating the hardcoded number. Also allow the answer to be exactly
> the maximum length. Previous implementation used a 64 byte string
> which included the '\0' string end and limited the usable size to
> 63 bytes. Now we can use the full 256 bytes.

...

> +#define FASTBOOT_MAX_RESPONSE_SIZE 256
> +
>  int fastboot_tx_print(struct fastboot *fb, enum fastboot_msg_type type,
>  		      const char *fmt, ...)
>  {
>  	struct va_format vaf;
> -	char buf[64];
> +	char buf[FASTBOOT_MAX_RESPONSE_SIZE + 1];

So the new size of 256 bytes don't include the '\0' at the end?

In that case feel free to add my:

Reviewed-by: Marco Felsch <m.felsch at pengutronix.de>

Regards,
  Marco




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