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

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On Fri, Feb 19, 2021 at 12:14:53PM +0100, Arnaud Pouliquen wrote:
> Implement the sendto ops to support the future rpmsg_char update for the
> vitio backend support.

Add a new line, otherwise it is very easy to read.

> The use of sendto in rpmsg_char is needed as a destination address is
> requested at least by the virtio backend.

Same here and throughout the patchset.

> The glink implementation does not need a destination address so ignores it.
> 
> Signed-off-by: Arnaud Pouliquen <arnaud.pouliquen@xxxxxxxxxxx>
> ---
>  drivers/rpmsg/qcom_glink_native.c | 16 ++++++++++++++++
>  1 file changed, 16 insertions(+)
> 
> diff --git a/drivers/rpmsg/qcom_glink_native.c b/drivers/rpmsg/qcom_glink_native.c
> index d4e4dd482614..ae2c03b59c55 100644
> --- a/drivers/rpmsg/qcom_glink_native.c
> +++ b/drivers/rpmsg/qcom_glink_native.c
> @@ -1332,6 +1332,20 @@ static int qcom_glink_trysend(struct rpmsg_endpoint *ept, void *data, int len)
>  	return __qcom_glink_send(channel, data, len, false);
>  }
>  
> +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.  The same goes for the next patch.  I would fold patch 08
and 09 into 10 to help get the big picture. 

> +
>  /*
>   * 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
> 



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