These changes are the raw update to linux-4.4.6-rt14. Kernel sources

[kvmfornfv.git] / kernel / drivers / acpi / acpi_platform.c

diff --git a/kernel/drivers/acpi/acpi_platform.c b/kernel/drivers/acpi/acpi_platform.c
index 4bf7559..296b7a1 100644 (file)
--- a/kernel/drivers/acpi/acpi_platform.c
+++ b/kernel/drivers/acpi/acpi_platform.c
@@ -103,7 +103,12 @@ struct platform_device *acpi_create_platform_device(struct acpi_device *adev)
        pdevinfo.res = resources;
        pdevinfo.num_res = count;
        pdevinfo.fwnode = acpi_fwnode_handle(adev);
-       pdevinfo.dma_mask = DMA_BIT_MASK(32);
+
+       if (acpi_dma_supported(adev))
+               pdevinfo.dma_mask = DMA_BIT_MASK(32);
+       else
+               pdevinfo.dma_mask = 0;
+
        pdev = platform_device_register_full(&pdevinfo);
        if (IS_ERR(pdev))
                dev_err(&adev->dev, "platform device creation failed: %ld\n",