iommu/arm-smmu: fix incorrect comment regarding TLB invalidation
Commit 1463fe44fd0f ("iommu/arm-smmu: Don't use VMIDs for stage-1
translations") moved our TLB invalidation from context creation time to
context destruction time, but forgot to update an associated comment.
This patch fixes the broken comment.
Signed-off-by: Will Deacon <will.deacon@arm.com>
diff --git a/drivers/iommu/arm-smmu.c b/drivers/iommu/arm-smmu.c
index 1da5b41..8b89e33 100644
--- a/drivers/iommu/arm-smmu.c
+++ b/drivers/iommu/arm-smmu.c
@@ -1026,9 +1026,8 @@
/*
* Recursively free the page tables for this domain. We don't
- * care about speculative TLB filling, because the TLB will be
- * nuked next time this context bank is re-allocated and no devices
- * currently map to these tables.
+ * care about speculative TLB filling because the tables should
+ * not be active in any context bank at this point (SCTLR.M is 0).
*/
pgd = pgd_base;
for (i = 0; i < PTRS_PER_PGD; ++i) {