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iommu/iova: Fix module config properly
[ Upstream commit4f58330fcc
] IOMMU_IOVA is intended to be an optional library for users to select as and when they desire. Since it can be a module now, this means that built-in code which has chosen not to select it should not fail to link if it happens to have selected as a module by someone else. Replace IS_ENABLED() with IS_REACHABLE() to do the right thing. CC: Thierry Reding <thierry.reding@gmail.com> Reported-by: John Garry <john.garry@huawei.com> Fixes:15bbdec393
("iommu: Make the iova library a module") Signed-off-by: Robin Murphy <robin.murphy@arm.com> Reviewed-by: Thierry Reding <treding@nvidia.com> Link: https://lore.kernel.org/r/548c2f683ca379aface59639a8f0cccc3a1ac050.1663069227.git.robin.murphy@arm.com Signed-off-by: Joerg Roedel <jroedel@suse.de> Signed-off-by: Sasha Levin <sashal@kernel.org>
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@ -133,7 +133,7 @@ static inline unsigned long iova_pfn(struct iova_domain *iovad, dma_addr_t iova)
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return iova >> iova_shift(iovad);
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}
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#if IS_ENABLED(CONFIG_IOMMU_IOVA)
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#if IS_REACHABLE(CONFIG_IOMMU_IOVA)
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int iova_cache_get(void);
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void iova_cache_put(void);
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