diff mbox series

[v6,4/6] tee: export teedev_open() and teedev_close_context()

Message ID 20211006071546.2540920-5-jens.wiklander@linaro.org
State Superseded
Headers show
Series Asynchronous notifications from secure world | expand

Commit Message

Jens Wiklander Oct. 6, 2021, 7:15 a.m. UTC 
Exports the two functions teedev_open() and teedev_close_context() in
order to make it easier to create a driver internal struct tee_context.

Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>

---
 drivers/tee/tee_core.c  |  6 ++++--
 include/linux/tee_drv.h | 14 ++++++++++++++
 2 files changed, 18 insertions(+), 2 deletions(-)

-- 
2.31.1
diff mbox series

Patch

diff --git a/drivers/tee/tee_core.c b/drivers/tee/tee_core.c
index 85102d12d716..3fc426dad2df 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 3ebfea0781f1..26f42c4cd7a1 100644
--- a/include/linux/tee_drv.h
+++ b/include/linux/tee_drv.h
@@ -582,4 +582,18 @@  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*/