Commit 3b264578 authored Apr 03, 2017 by Patrick Daly

iommu: arm-smmu: Fix shift of integer by more than 32



UBSAN detected an issue where an integer can be shifted by more than 32.
Use the correct type for this operation.

Change-Id: I3aad0d73374c23930049cd6a9de337268d659e0f
Signed-off-by: Patrick Daly <pdaly@codeaurora.org>

parent 190f44f1

drivers/iommu/io-pgtable-arm.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -78,7 +78,7 @@

		/* Calculate the block/page mapping size at level l for pagetable in d. */
		#define ARM_LPAE_BLOCK_SIZE(l,d) \
		(1 << (ilog2(sizeof(arm_lpae_iopte)) + \
		(1ULL << (ilog2(sizeof(arm_lpae_iopte)) + \
		((ARM_LPAE_MAX_LEVELS - (l)) * (d)->bits_per_level)))

		/* Page table bits */