[PATCH v5 3/5] can: do not copy the payload of RTR frames

[Yasushi SHOJI]

Hi Vincent,

On Tue, Dec 7, 2021 at 9:16 PM Vincent Mailhol
<mailhol.vincent at wanadoo.fr> wrote:
>
> The actual payload length of the CAN Remote Transmission Request (RTR)
> frames is always 0, i.e. nothing is transmitted on the wire. However,
> those RTR frames still use the DLC to indicate the length of the
> requested frame.
>
> For this reason, it is incorrect to copy the payload of RTR frames
> (the payload buffer would only contain garbage data). This patch
> encapsulates the payload copy in a check toward the RTR flag.
>
> CC: Yasushi SHOJI <yashi at spacecubics.com>
> Signed-off-by: Vincent Mailhol <mailhol.vincent at wanadoo.fr>

It works and LGTM.

Tested-by: Yasushi SHOJI <yashi at spacecubics.com>
-- 
              yashi