acpi-dma: fix sparse warning

This patch fixes sparse warning:
	drivers/dma/acpi-dma.c:76:21: sparse: cast to restricted __le32

Since everything in all ACPI tables is little-endian, by definition, the used
types in practice are uXX. Thus, we have to enforce __leXX if we want to
convert them to CPU order.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>

diff --git a/drivers/dma/acpi-dma.c b/drivers/dma/acpi-dma.c
index 5a18f82..ba7f932 100644 (file)
--- a/drivers/dma/acpi-dma.c
+++ b/drivers/dma/acpi-dma.c
@@ -73,7 +73,7 @@ static int acpi_dma_parse_resource_group(const struct acpi_csrt_group *grp,
        if (si->mmio_base_low != mem || si->gsi_interrupt != irq)
                return 0;
 
-       vendor_id = le32_to_cpu(grp->vendor_id);
+       vendor_id = le32_to_cpu((__force __le32)grp->vendor_id);
        dev_dbg(&adev->dev, "matches with %.4s%04X (rev %u)\n",
                (char *)&vendor_id, grp->device_id, grp->revision);