Implement the get_mtu ops to return the maximum size of the message that can be sent. Signed-off-by: Arnaud Pouliquen <arnaud.pouliquen@xxxxxx> --- drivers/rpmsg/qcom_smd.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/drivers/rpmsg/qcom_smd.c b/drivers/rpmsg/qcom_smd.c index 4abbeea782fa..f233f8d85062 100644 --- a/drivers/rpmsg/qcom_smd.c +++ b/drivers/rpmsg/qcom_smd.c @@ -989,6 +989,13 @@ static __poll_t qcom_smd_poll(struct rpmsg_endpoint *ept, return mask; } +static ssize_t qcom_smd_get_mtu(struct rpmsg_endpoint *ept) +{ + struct qcom_smd_endpoint *qsept = to_smd_endpoint(ept); + + return qcom_smd_get_tx_avail(qsept->qsch); +} + /* * Finds the device_node for the smd child interested in this channel. */ @@ -1040,6 +1047,7 @@ static const struct rpmsg_endpoint_ops qcom_smd_endpoint_ops = { .send = qcom_smd_send, .trysend = qcom_smd_trysend, .poll = qcom_smd_poll, + .get_mtu = qcom_smd_get_mtu, }; static void qcom_smd_release_device(struct device *dev) -- 2.7.4