diff mbox series

[v7,01/11] tee: tee_device_alloc(): copy dma_mask from parent device

Message ID 20250404143215.2281034-2-jens.wiklander@linaro.org (mailing list archive)
State New
Headers show
Series TEE subsystem for protected dma-buf allocations | expand

Commit Message

Jens Wiklander April 4, 2025, 2:31 p.m. UTC 
If a parent device is supplied to tee_device_alloc(), copy the dma_mask
field into the new device. This avoids future warnings when mapping a
DMA-buf for the device.

Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
Reviewed-by: Sumit Garg <sumit.garg@kernel.org>
---
 drivers/tee/tee_core.c | 2 ++
 1 file changed, 2 insertions(+)
diff mbox series

Patch

diff --git a/drivers/tee/tee_core.c b/drivers/tee/tee_core.c
index d113679b1e2d..685afcaa3ea1 100644
--- a/drivers/tee/tee_core.c
+++ b/drivers/tee/tee_core.c
@@ -922,6 +922,8 @@  struct tee_device *tee_device_alloc(const struct tee_desc *teedesc,
 	teedev->dev.class = &tee_class;
 	teedev->dev.release = tee_release_device;
 	teedev->dev.parent = dev;
+	if (dev)
+		teedev->dev.dma_mask = dev->dma_mask;
 
 	teedev->dev.devt = MKDEV(MAJOR(tee_devt), teedev->id);