linux

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Arnd Bergmann 4578f989ed iommu/vt-d: Fix constant-out-of-range warning

On 32-bit builds, the vt-d driver causes a warning with clang:

drivers/iommu/intel/nested.c:112:13: error: result of comparison of constant 18446744073709551615 with expression of type 'unsigned long' is always false [-Werror,-Wtautological-constant-out-of-range-compare]
  112 |         if (npages == U64_MAX)
      |             ~~~~~~ ^  ~~~~~~~

Make the variable a 64-bit type, which matches both the caller and the
use anyway.

Fixes: f6f3721244a8 ("iommu/vt-d: Add iotlb flush for nested domain")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20240213095832.455245-1-arnd@kernel.org
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>

2024-02-21 10:28:48 +01:00

cap_audit.c

iommu/vt-d: Remove virtual command interface

2023-03-31 10:03:21 +02:00

cap_audit.h

iommu/vt-d: Check FL and SL capability sanity in scalable mode

2021-10-18 12:31:48 +02:00

debugfs.c

iommu/vt-d: Remove unused vcmd interfaces

2023-12-19 14:32:28 +01:00

dmar.c

iommu/vt-d: Omit devTLB invalidation requests when TES=0