Merge: iommu/tegra241-cmdqv: Fix alignment failure at max_n_shift

MR: https://gitlab.com/redhat/centos-stream/src/kernel/centos-stream-10/-/merge_requests/66

JIRA: https://issues.redhat.com/browse/RHEL-67995
Upstream Status: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git

This is a small change to fix an issue in the tegra virtual command queue support that was added to kernel-5.14.0-523.el9.

Signed-off-by: Jerry Snitselaar <jsnitsel@redhat.com>

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Approved-by: Myron Stowe <mstowe@redhat.com>
Approved-by: Donald Dutile <ddutile@redhat.com>
Approved-by: CKI KWF Bot <cki-ci-bot+kwf-gitlab-com@redhat.com>

Merged-by: Jan Stancek <jstancek@redhat.com>

Author: jstancek

drivers/iommu/arm/arm-smmu-v3/tegra241-cmdqv.c

@@ -509,7 +509,8 @@ static int tegra241_vcmdq_alloc_smmu_cmdq(struct tegra241_vcmdq *vcmdq)
 
 	snprintf(name, 16, "vcmdq%u", vcmdq->idx);
 
-	q->llq.max_n_shift = VCMDQ_LOG2SIZE_MAX;
+	/* Queue size, capped to ensure natural alignment */
+	q->llq.max_n_shift = min_t(u32, CMDQ_MAX_SZ_SHIFT, VCMDQ_LOG2SIZE_MAX);
 
 	/* Use the common helper to init the VCMDQ, and then... */
 	ret = arm_smmu_init_one_queue(smmu, q, vcmdq->page0,