From 42bf4152d8a79f89f5456dee63a1f364fbce2dd6 Mon Sep 17 00:00:00 2001 From: Sumit Garg Date: Tue, 29 Jan 2019 11:19:36 +0530 Subject: tee: add supp_nowait flag in tee_context struct This flag indicates that requests in this context should not wait for tee-supplicant daemon to be started if not present and just return with an error code. It is needed for requests which should be non-blocking in nature like ones arising from TEE based kernel drivers or any in kernel api that uses TEE internal client interface. Signed-off-by: Sumit Garg Reviewed-by: Daniel Thompson Signed-off-by: Jens Wiklander --- include/linux/tee_drv.h | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'include/linux/tee_drv.h') diff --git a/include/linux/tee_drv.h b/include/linux/tee_drv.h index 6cfe05893a76..5076502c07d7 100644 --- a/include/linux/tee_drv.h +++ b/include/linux/tee_drv.h @@ -47,6 +47,11 @@ struct tee_shm_pool; * @releasing: flag that indicates if context is being released right now. * It is needed to break circular dependency on context during * shared memory release. + * @supp_nowait: flag that indicates that requests in this context should not + * wait for tee-supplicant daemon to be started if not present + * and just return with an error code. It is needed for requests + * that arises from TEE based kernel drivers that should be + * non-blocking in nature. */ struct tee_context { struct tee_device *teedev; @@ -54,6 +59,7 @@ struct tee_context { void *data; struct kref refcount; bool releasing; + bool supp_nowait; }; struct tee_param_memref { -- cgit