[PATCH 5.16 087/227] tee: export teedev_open() and teedev_close_context()

[Greg Kroah-Hartman]

From: Jens Wiklander <jens.wiklander@xxxxxxxxxx>

[ Upstream commit 1e2c3ef0496e72ba9001da5fd1b7ed56ccb30597 ]

Exports the two functions teedev_open() and teedev_close_context() in
order to make it easier to create a driver internal struct tee_context.

Reviewed-by: Sumit Garg <sumit.garg@xxxxxxxxxx>
Signed-off-by: Jens Wiklander <jens.wiklander@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 drivers/tee/tee_core.c  |  6 ++++--
 include/linux/tee_drv.h | 14 ++++++++++++++
 2 files changed, 18 insertions(+), 2 deletions(-)

diff --git a/drivers/tee/tee_core.c b/drivers/tee/tee_core.c
index 85102d12d7169..3fc426dad2df3 100644
--- a/drivers/tee/tee_core.c
+++ b/drivers/tee/tee_core.c
@@ -43,7 +43,7 @@ static DEFINE_SPINLOCK(driver_lock);
 static struct class *tee_class;
 static dev_t tee_devt;
 
-static struct tee_context *teedev_open(struct tee_device *teedev)
+struct tee_context *teedev_open(struct tee_device *teedev)
 {
 	int rc;
 	struct tee_context *ctx;
@@ -70,6 +70,7 @@ static struct tee_context *teedev_open(struct tee_device *teedev)
 	return ERR_PTR(rc);
 
 }
+EXPORT_SYMBOL_GPL(teedev_open);
 
 void teedev_ctx_get(struct tee_context *ctx)
 {
@@ -96,13 +97,14 @@ void teedev_ctx_put(struct tee_context *ctx)
 	kref_put(&ctx->refcount, teedev_ctx_release);
 }
 
-static void teedev_close_context(struct tee_context *ctx)
+void teedev_close_context(struct tee_context *ctx)
 {
 	struct tee_device *teedev = ctx->teedev;
 
 	teedev_ctx_put(ctx);
 	tee_device_put(teedev);
 }
+EXPORT_SYMBOL_GPL(teedev_close_context);
 
 static int tee_open(struct inode *inode, struct file *filp)
 {
diff --git a/include/linux/tee_drv.h b/include/linux/tee_drv.h
index cf5999626e28d..5e1533ee3785b 100644
--- a/include/linux/tee_drv.h
+++ b/include/linux/tee_drv.h
@@ -587,4 +587,18 @@ struct tee_client_driver {
 #define to_tee_client_driver(d) \
 		container_of(d, struct tee_client_driver, driver)
 
+/**
+ * teedev_open() - Open a struct tee_device
+ * @teedev:	Device to open
+ *
+ * @return a pointer to struct tee_context on success or an ERR_PTR on failure.
+ */
+struct tee_context *teedev_open(struct tee_device *teedev);
+
+/**
+ * teedev_close_context() - closes a struct tee_context
+ * @ctx:	The struct tee_context to close
+ */
+void teedev_close_context(struct tee_context *ctx);
+
 #endif /*__TEE_DRV_H*/
-- 
2.34.1