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authorKirill A. Shutemov <kirill.shutemov@linux.intel.com>2023-03-15 12:31:32 +0100
committerAndrew Morton <akpm@linux-foundation.org>2023-04-06 04:42:46 +0200
commit61883d3c32418f16e35e030ca0cfd5d2de95a649 (patch)
tree6c53d37051e0158aba6a03e1f6a7fc8f1fa299a8 /mm/percpu-vm.c
parentmm/slub: fix MAX_ORDER usage in calculate_order() (diff)
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iommu: fix MAX_ORDER usage in __iommu_dma_alloc_pages()
MAX_ORDER is not inclusive: the maximum allocation order buddy allocator can deliver is MAX_ORDER-1. Fix MAX_ORDER usage in __iommu_dma_alloc_pages(). Also use GENMASK() instead of hard to read "(2U << order) - 1" magic. Link: https://lkml.kernel.org/r/20230315113133.11326-10-kirill.shutemov@linux.intel.com Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Acked-by: Robin Murphy <robin.murphy@arm.com> Reviewed-by: Jacob Pan <jacob.jun.pan@linux.intel.com> Acked-by: Joerg Roedel <jroedel@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'mm/percpu-vm.c')
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