tee: remove redundant teedev in struct tee_shm
The ctx element in struct tee_shm is always valid. So remove the now
redundant teedev element.
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
diff --git a/drivers/tee/tee_shm.c b/drivers/tee/tee_shm.c
index 02210f1..b01d2b7 100644
--- a/drivers/tee/tee_shm.c
+++ b/drivers/tee/tee_shm.c
@@ -13,7 +13,7 @@
static void tee_shm_release(struct tee_shm *shm)
{
- struct tee_device *teedev = shm->teedev;
+ struct tee_device *teedev = shm->ctx->teedev;
if (shm->flags & TEE_SHM_DMA_BUF) {
mutex_lock(&teedev->mutex);
@@ -44,8 +44,7 @@ static void tee_shm_release(struct tee_shm *shm)
kfree(shm->pages);
}
- if (shm->ctx)
- teedev_ctx_put(shm->ctx);
+ teedev_ctx_put(shm->ctx);
kfree(shm);
@@ -126,7 +125,6 @@ struct tee_shm *tee_shm_alloc(struct tee_context *ctx, size_t size, u32 flags)
}
shm->flags = flags | TEE_SHM_POOL;
- shm->teedev = teedev;
shm->ctx = ctx;
if (flags & TEE_SHM_DMA_BUF)
poolm = teedev->pool->dma_buf_mgr;
@@ -215,7 +213,6 @@ struct tee_shm *tee_shm_register(struct tee_context *ctx, unsigned long addr,
}
shm->flags = flags | TEE_SHM_REGISTER;
- shm->teedev = teedev;
shm->ctx = ctx;
shm->id = -1;
addr = untagged_addr(addr);
diff --git a/include/linux/tee_drv.h b/include/linux/tee_drv.h
index 42687f6..1412e9c 100644
--- a/include/linux/tee_drv.h
+++ b/include/linux/tee_drv.h
@@ -167,8 +167,7 @@ void tee_device_unregister(struct tee_device *teedev);
/**
* struct tee_shm - shared memory object
- * @teedev: device used to allocate the object
- * @ctx: context using the object, if NULL the context is gone
+ * @ctx: context using the object
* @paddr: physical address of the shared memory
* @kaddr: virtual address of the shared memory
* @size: size of shared memory
@@ -183,7 +182,6 @@ void tee_device_unregister(struct tee_device *teedev);
* subsystem and from drivers that implements their own shm pool manager.
*/
struct tee_shm {
- struct tee_device *teedev;
struct tee_context *ctx;
phys_addr_t paddr;
void *kaddr;