Commit 495b637f authored by Thierry Reding's avatar Thierry Reding Committed by Ulf Hansson
Browse files

iommu: Add note about struct iommu_fwspec usage 



This structure is to be considered private to the IOMMU API. Except for
very few exceptions, IOMMU consumer drivers should treat this as opaque
data.

Acked-by: default avatarJoerg Roedel <jroedel@suse.de>
Signed-off-by: default avatarThierry Reding <treding@nvidia.com>
Link: https://lore.kernel.org/r/20221206165945.3551774-2-thierry.reding@gmail.com


Signed-off-by: default avatarUlf Hansson <ulf.hansson@linaro.org>
parent a234442c

include/linux/iommu.h

+4 −0
Original line number Diff line number Diff line
@@ -605,6 +605,10 @@ struct iommu_group *fsl_mc_device_group(struct device *dev); 
 * @flags: IOMMU_FWSPEC_* flags

 * @num_ids: number of associated device IDs

 * @ids: IDs which this device may present to the IOMMU

 *

 * Note that the IDs (and any other information, really) stored in this structure should be

 * considered private to the IOMMU device driver and are not to be used directly by IOMMU

 * consumers.

 */

struct iommu_fwspec {

	const struct iommu_ops	*ops;