iommu/io-pgtable-arm: Avoid warning with 32-bit phys_addr_t
It's not entirely unreasonable for io-pgtable-arm to be built for configurations with 32-bit phys_addr_t, where the compiler rightly raises a warning about the 36-bit shift. That particular code path should never actually *run* on those systems, but we still want it to compile cleanly, which is easily done by using an unambiguous u64 as the intermediate type instead. Signed-off-by: Robin Murphy <robin.murphy@arm.com> Signed-off-by: Joerg Roedel <jroedel@suse.de>
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@ -211,7 +211,7 @@ static arm_lpae_iopte paddr_to_iopte(phys_addr_t paddr,
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static phys_addr_t iopte_to_paddr(arm_lpae_iopte pte,
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static phys_addr_t iopte_to_paddr(arm_lpae_iopte pte,
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struct arm_lpae_io_pgtable *data)
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struct arm_lpae_io_pgtable *data)
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{
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{
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phys_addr_t paddr = pte & ARM_LPAE_PTE_ADDR_MASK;
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u64 paddr = pte & ARM_LPAE_PTE_ADDR_MASK;
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if (data->pg_shift < 16)
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if (data->pg_shift < 16)
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return paddr;
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return paddr;
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