linux-kernel - Re: [PATCH v6] can, tty: can327 CAN/ldisc driver for ELM327 based OBD-II adapters

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Message-ID: <CAMZ6RqKjGJyOPCQvS95ZUc6UrgaFzjunRhU=10biAAWYT_V_ZQ@mail.gmail.com>
Date:   Fri, 13 May 2022 15:31:20 +0900
From:   Vincent Mailhol <vincent.mailhol@...il.com>
To:     Max Staudt <max@...as.org>
Cc:     Wolfgang Grandegger <wg@...ndegger.com>,
        Marc Kleine-Budde <mkl@...gutronix.de>,
        linux-can@...r.kernel.org,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Oliver Neukum <oneukum@...e.com>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v6] can, tty: can327 CAN/ldisc driver for ELM327 based
 OBD-II adapters

On Fri. 13 May 2022 at 11:38, Vincent Mailhol <vincent.mailhol@...il.com> wrote:
[...]
> > +       case ELM327_STATE_RECEIVING:
> > +               /* Find <CR> delimiting feedback lines. */
> > +               for (len = 0;
> > +                    (len < elm->rxfill) && (elm->rxbuf[len] != '\r');
> > +                    len++) {
> > +                       /* empty loop */
>
> Question of taste but would prefer a while look with the len++ in the
> body (if you prefer to do as above, no need to argue, just keep it
> like it is).

Actually, what about this?

len = strnchr(elm->rxbuf, elm->rxfill, '\r');