From: Andreas Herrmann Date: Thu, 16 Oct 2008 14:27:36 +0000 (+0200) Subject: amd_iommu: fix nasty bug that caused ILLEGAL_DEVICE_TABLE_ENTRY errors X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=f609891f428e1c20e270e7c350daf8c93cc459d7;p=openwrt%2Fstaging%2Fblogic.git amd_iommu: fix nasty bug that caused ILLEGAL_DEVICE_TABLE_ENTRY errors We are on 64-bit so better use u64 instead of u32 to deal with addresses: static void __init iommu_set_device_table(struct amd_iommu *iommu) { u64 entry; ... entry = virt_to_phys(amd_iommu_dev_table); ... (I am wondering why gcc 4.2.x did not warn about the assignment between u32 and unsigned long.) Cc: iommu@lists.linux-foundation.org Cc: stable@kernel.org Signed-off-by: Andreas Herrmann Signed-off-by: Joerg Roedel Signed-off-by: David Woodhouse --- diff --git a/arch/x86/kernel/amd_iommu_init.c b/arch/x86/kernel/amd_iommu_init.c index 4cd8083c58be..0cdcda35a05f 100644 --- a/arch/x86/kernel/amd_iommu_init.c +++ b/arch/x86/kernel/amd_iommu_init.c @@ -212,7 +212,7 @@ static void __init iommu_set_exclusion_range(struct amd_iommu *iommu) /* Programs the physical address of the device table into the IOMMU hardware */ static void __init iommu_set_device_table(struct amd_iommu *iommu) { - u32 entry; + u64 entry; BUG_ON(iommu->mmio_base == NULL);