Commit 4762315d authored by Randy Dunlap's avatar Randy Dunlap Committed by Joerg Roedel
Browse files

iommu/of: mark an unused function as __maybe_unused 



When CONFIG_OF_ADDRESS is not set, there is a build warning/error
about an unused function.
Annotate the function to quieten the warning/error.

../drivers/iommu/of_iommu.c:176:29: warning: 'iommu_resv_region_get_type' defined but not used [-Wunused-function]
  176 | static enum iommu_resv_type iommu_resv_region_get_type(struct device *dev, struct resource *phys,
      |                             ^~~~~~~~~~~~~~~~~~~~~~~~~~

Fixes: a5bf3cfc ("iommu: Implement of_iommu_get_resv_regions()")
Signed-off-by: default avatarRandy Dunlap <rdunlap@infradead.org>
Cc: Thierry Reding <treding@nvidia.com>
Cc: Joerg Roedel <jroedel@suse.de>
Cc: Will Deacon <will@kernel.org>
Cc: iommu@lists.linux.dev
Reviewed-by: default avatarThierry Reding <treding@nvidia.com>
Link: https://lore.kernel.org/r/20230209010359.23831-1-rdunlap@infradead.org


[joro: Improve code formatting]
Signed-off-by: default avatarJoerg Roedel <jroedel@suse.de>
parent 189d496b

drivers/iommu/of_iommu.c

+4 −2
Original line number Diff line number Diff line
@@ -173,7 +173,9 @@ const struct iommu_ops *of_iommu_configure(struct device *dev, 
	return ops;

}



static enum iommu_resv_type iommu_resv_region_get_type(struct device *dev, struct resource *phys,

static enum iommu_resv_type __maybe_unused

iommu_resv_region_get_type(struct device *dev,

			   struct resource *phys,

			   phys_addr_t start, size_t length)

{

	phys_addr_t end = start + length - 1;