linux-kernel - Re: [PATCH v5 08/16] rpmsg: glink: add sendto and trysendto ops

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Date:   Fri, 5 Mar 2021 09:55:10 -0700
From:   Mathieu Poirier <mathieu.poirier@...aro.org>
To:     Arnaud POULIQUEN <arnaud.pouliquen@...s.st.com>
Cc:     Bjorn Andersson <bjorn.andersson@...aro.org>,
        Ohad Ben-Cohen <ohad@...ery.com>,
        Andy Gross <agross@...nel.org>,
        linux-remoteproc@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-stm32@...md-mailman.stormreply.com,
        linux-arm-msm@...r.kernel.org
Subject: Re: [PATCH v5 08/16] rpmsg: glink: add sendto and trysendto ops

[...]

> >>  }
> >>  
> >> +static int qcom_glink_sendto(struct rpmsg_endpoint *ept, void *data, int len, u32 dst)
> >> +{
> >> +	struct glink_channel *channel = to_glink_channel(ept);
> >> +
> >> +	return __qcom_glink_send(channel, data, len, true);
> >> +}
> >> +
> >> +static int qcom_glink_trysendto(struct rpmsg_endpoint *ept, void *data, int len, u32 dst)
> >> +{
> >> +	struct glink_channel *channel = to_glink_channel(ept);
> >> +
> >> +	return __qcom_glink_send(channel, data, len, false);
> >> +}
> > 
> > Just rename send() to sendto() and trysend() to trysendto() and ignore the
> > destination address.  
> 

Apologies for not being clear.

> Function prototypes have to match with rpmsg_endpoint_ops structure defined
> below. So seems to me not possible to just rename the functions.
> Please could you clarify if i missed something?

I don't think rproc_ops::send() and rproc_ops::trysend() are used anywhere else.
So replace them with rproc_ops::sendto() and rproc_ops::trysendto() where the
destination address would be ingnored.

> 
> > The same goes for the next patch.  I would fold patch 08
> > and 09 into 10 to help get the big picture.
> 
> I'm going to squash all in one.

Perfect

> 
> Thanks,
> Arnaud
> 
> > 
> >> +
> >>  /*
> >>   * Finds the device_node for the glink child interested in this channel.
> >>   */
> >> @@ -1364,7 +1378,9 @@ static const struct rpmsg_device_ops glink_device_ops = {
> >>  static const struct rpmsg_endpoint_ops glink_endpoint_ops = {
> >>  	.destroy_ept = qcom_glink_destroy_ept,
> >>  	.send = qcom_glink_send,
> >> +	.sendto = qcom_glink_sendto,
> >>  	.trysend = qcom_glink_trysend,
> >> +	.trysendto = qcom_glink_trysendto,
> >>  };
> >>  
> >>  static void qcom_glink_rpdev_release(struct device *dev)
> >> -- 
> >> 2.17.1
> >>