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[ Upstream commit68dd9d89ea] Commit6ee1b77ba3("iommu/vt-d: Add svm/sva invalidate function") introduced intel_iommu_sva_invalidate() when CONFIG_INTEL_IOMMU_SVM. This function uses the dedicated static variable inv_type_granu_table and functions to_vtd_granularity() and to_vtd_size(). These parts are unused when !CONFIG_INTEL_IOMMU_SVM, and hence, make CC=clang W=1 warns with an -Wunused-function warning. Include these parts conditionally on CONFIG_INTEL_IOMMU_SVM. Fixes:6ee1b77ba3("iommu/vt-d: Add svm/sva invalidate function") Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com> Acked-by: Lu Baolu <baolu.lu@linux.intel.com> Link: https://lore.kernel.org/r/20201115205951.20698-1-lukas.bulwahn@gmail.com Signed-off-by: Will Deacon <will@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>