Commit 3d7c821c authored by Andy Shevchenko's avatar Andy Shevchenko Committed by Rafael J. Wysocki
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ACPI: scan: Constify acpi_dma_supported() helper function 



Constify arguments to acpi_dma_supported(). The function doesn't need
to change the content of the passed argument and when it's const it
allows to supply the result of other functions that may return a pointer
to a constant object.

Signed-off-by: default avatarAndy Shevchenko <andriy.shevchenko@linux.intel.com>
[ rjw: Subject edit ]
Signed-off-by: default avatarRafael J. Wysocki <rafael.j.wysocki@intel.com>
parent 5c1a72a0

drivers/acpi/scan.c

+1 −1
Original line number Diff line number Diff line
@@ -1404,7 +1404,7 @@ void acpi_free_pnp_ids(struct acpi_device_pnp *pnp) 
 *

 * Return false if DMA is not supported. Otherwise, return true

 */

bool acpi_dma_supported(struct acpi_device *adev)

bool acpi_dma_supported(const struct acpi_device *adev)

{

	if (!adev)

		return false;

include/acpi/acpi_bus.h

+1 −1
Original line number Diff line number Diff line
@@ -586,7 +586,7 @@ struct acpi_pci_root { 


/* helper */



bool acpi_dma_supported(struct acpi_device *adev);

bool acpi_dma_supported(const struct acpi_device *adev);

enum dev_dma_attr acpi_get_dma_attr(struct acpi_device *adev);

int acpi_dma_get_range(struct device *dev, u64 *dma_addr, u64 *offset,

		       u64 *size);

include/linux/acpi.h

+1 −1
Original line number Diff line number Diff line
@@ -911,7 +911,7 @@ acpi_create_platform_device(struct acpi_device *adev, 
	return NULL;

}



static inline bool acpi_dma_supported(struct acpi_device *adev)

static inline bool acpi_dma_supported(const struct acpi_device *adev)

{

	return false;

}