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Commit 0e526f53 authored by Jens Wiklander's avatar Jens Wiklander Committed by Greg Kroah-Hartman
Browse files

tee: export teedev_open() and teedev_close_context() 



commit 1e2c3ef0496e72ba9001da5fd1b7ed56ccb30597 upstream.

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: default avatarSumit Garg <sumit.garg@linaro.org>
Signed-off-by: default avatarJens Wiklander <jens.wiklander@linaro.org>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 64e0b589

drivers/tee/tee_core.c

+4 −2
Original line number Diff line number Diff line
@@ -28,7 +28,7 @@ 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;
@@ -56,6 +56,7 @@ 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)

{
@@ -82,13 +83,14 @@ 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)

{

include/linux/tee_drv.h

+14 −0
Original line number Diff line number Diff line
@@ -579,4 +579,18 @@ 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*/