On Thu, May 04, 2017 at 12:21:51PM +0300, Andy Shevchenko wrote:
> diff --git a/drivers/iommu/dmar.c b/drivers/iommu/dmar.c
> index cbf7763d8091..420d51b286ad 100644
> --- a/drivers/iommu/dmar.c
> +++ b/drivers/iommu/dmar.c
> @@ -1808,10 +1808,9 @@ IOMMU_INIT_POST(detect_intel_iommu);
> * for Directed-IO Architecture Specifiction, Rev 2.2, Section 8.8
> * "Remapping Hardware Unit Hot Plug".
> */
> -static u8 dmar_hp_uuid[] = {
> - /* 0000 */ 0xA6, 0xA3, 0xC1, 0xD8, 0x9B, 0xBE, 0x9B, 0x4C,
> - /* 0008 */ 0x91, 0xBF, 0xC3, 0xCB, 0x81, 0xFC, 0x5D, 0xAF
> -};
> +static uuid_le dmar_hp_uuid =
> + UUID_LE(0xD8C1A3A6, 0xBE9B, 0x4C9B,
> + 0x91, 0xBF, 0xC3, 0xCB, 0x81, 0xFC, 0x5D, 0xAF);
>
> /*
> * Currently there's only one revision and BIOS will not check the revision id,
> @@ -1824,7 +1823,7 @@ static u8 dmar_hp_uuid[] = {
>
> static inline bool dmar_detect_dsm(acpi_handle handle, int func)
> {
> - return acpi_check_dsm(handle, dmar_hp_uuid, DMAR_DSM_REV_ID, 1 << func);
> + return acpi_check_dsm(handle, &dmar_hp_uuid, DMAR_DSM_REV_ID, 1 << func);
> }
>
> static int dmar_walk_dsm_resource(acpi_handle handle, int func,
> @@ -1843,7 +1842,7 @@ static int dmar_walk_dsm_resource(acpi_handle handle, int func,
> if (!dmar_detect_dsm(handle, func))
> return 0;
>
> - obj = acpi_evaluate_dsm_typed(handle, dmar_hp_uuid, DMAR_DSM_REV_ID,
> + obj = acpi_evaluate_dsm_typed(handle, &dmar_hp_uuid, DMAR_DSM_REV_ID,
> func, NULL, ACPI_TYPE_BUFFER);
> if (!obj)
> return -ENODEV;
DMAR part is
Acked-by: Joerg Roedel <jroedel@xxxxxxx>
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