Re: [PATCH v6 01/10] tee: tee_device_alloc(): copy dma_mask from parent device
From: Sumit Garg <sumit.garg@kernel.org>
Date: 2025-03-10 08:56:36
Also in:
dri-devel, linux-media, lkml, op-tee
On Wed, Mar 05, 2025 at 02:04:07PM +0100, Jens Wiklander wrote:
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 <redacted> --- drivers/tee/tee_core.c | 2 ++ 1 file changed, 2 insertions(+)
Reviewed-by: Sumit Garg <sumit.garg@kernel.org> -Sumit
quoted hunk ↗ jump to hunk
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);-- 2.43.0