From 102a0743326a03cd1a1202ceda21e175b7d3575c Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Tue, 20 Feb 2024 01:20:52 +0000
Subject: [PATCH] add new system file

---
 kernel/drivers/rpmsg/rpmsg_internal.h |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)

diff --git a/kernel/drivers/rpmsg/rpmsg_internal.h b/kernel/drivers/rpmsg/rpmsg_internal.h
index 03356e8..70f5667 100644
--- a/kernel/drivers/rpmsg/rpmsg_internal.h
+++ b/kernel/drivers/rpmsg/rpmsg_internal.h
@@ -50,6 +50,7 @@
  * @poll:		see @rpmsg_poll(), optional
  * @get_signals:	see @rpmsg_get_signals(), optional
  * @set_signals:	see @rpmsg_set_signals(), optional
+ * @get_mtu:		see @rpmsg_get_mtu(), optional
  *
  * Indirection table for the operations that a rpmsg backend should implement.
  * In addition to @destroy_ept, the backend must at least implement @send and
@@ -71,6 +72,9 @@
 			     poll_table *wait);
 	int (*get_signals)(struct rpmsg_endpoint *ept);
 	int (*set_signals)(struct rpmsg_endpoint *ept, u32 set, u32 clear);
+#ifdef CONFIG_NO_GKI
+	ssize_t (*get_mtu)(struct rpmsg_endpoint *ept);
+#endif
 };
 
 int rpmsg_register_device(struct rpmsg_device *rpdev);

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