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-rw-r--r--include/linux/rpmsg.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/rpmsg.h b/include/linux/rpmsg.h
index a8e50e44203c..195f373590b8 100644
--- a/include/linux/rpmsg.h
+++ b/include/linux/rpmsg.h
@@ -38,6 +38,7 @@
#include <linux/types.h>
#include <linux/device.h>
#include <linux/mod_devicetable.h>
+#include <linux/kref.h>
/* The feature bitmap for virtio rpmsg */
#define VIRTIO_RPMSG_F_NS 0 /* RP supports name service notifications */
@@ -120,6 +121,7 @@ typedef void (*rpmsg_rx_cb_t)(struct rpmsg_channel *, void *, int, void *, u32);
/**
* struct rpmsg_endpoint - binds a local rpmsg address to its user
* @rpdev: rpmsg channel device
+ * @refcount: when this drops to zero, the ept is deallocated
* @cb: rx callback handler
* @addr: local rpmsg address
* @priv: private data for the driver's use
@@ -140,6 +142,7 @@ typedef void (*rpmsg_rx_cb_t)(struct rpmsg_channel *, void *, int, void *, u32);
*/
struct rpmsg_endpoint {
struct rpmsg_channel *rpdev;
+ struct kref refcount;
rpmsg_rx_cb_t cb;
u32 addr;
void *priv;