linux-kernel - Re: [PATCH v7 2/2] tty: add rpmsg driver

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Date:   Wed, 25 Mar 2020 09:10:24 +0100
From:   Jiri Slaby <jslaby@...e.com>
To:     Randy Dunlap <rdunlap@...radead.org>,
        Arnaud Pouliquen <arnaud.pouliquen@...com>,
        Ohad Ben-Cohen <ohad@...ery.com>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        linux-kernel@...r.kernel.org, linux-remoteproc@...r.kernel.org,
        Mathieu Poirier <mathieu.poirier@...aro.org>
Cc:     Suman Anna <s-anna@...com>,
        Fabien DESSENNE <fabien.dessenne@...com>,
        linux-stm32@...md-mailman.stormreply.com,
        Alan Cox <gnomes@...rguk.ukuu.org.uk>,
        xiang xiao <xiaoxiang781216@...il.com>
Subject: Re: [PATCH v7 2/2] tty: add rpmsg driver

Hi,

On 24. 03. 20, 18:44, Randy Dunlap wrote:
>> +  could be lost.
>> +- It can pause/resume reception by sending a control message (rely on CTS state).
>> +
>> +Control message structure:
>> +struct rpmsg_tty_ctrl {
>> +	u8 cts;			/* remote reception status */
>> +	u16 d_ept_addr;		/* data endpoint address */
>> +};
> 
> Is that struct packed or padded?

As it seems, this documentation is in contradiction with code, anyway:

+struct rpmsg_tty_ctrl {
+	u16 d_ept_addr;		/* data endpoint address */
+	u8 cts;			/* remote reception status */
+} __packed;

thanks,
-- 
js
suse labs