update kernel to 5.10.198

hc

2024-01-03 2f7c68cb55ecb7331f2381deb497c27155f32faf

 kernel/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c
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@@ -162,6 +162,18 @@
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 	q->cons = Q_OVF(q->cons) | Q_WRP(q, cons) | Q_IDX(q, cons);
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 }
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+static void queue_sync_cons_ovf(struct arm_smmu_queue *q)
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+{
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+	struct arm_smmu_ll_queue *llq = &q->llq;
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+
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+	if (likely(Q_OVF(llq->prod) == Q_OVF(llq->cons)))
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+		return;
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+
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+	llq->cons = Q_OVF(llq->prod) | Q_WRP(llq, llq->cons) |
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+		      Q_IDX(llq, llq->cons);
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+	queue_sync_cons_out(q);
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+}
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+
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 static int queue_sync_prod_in(struct arm_smmu_queue *q)
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 {
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 	u32 prod;
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@@ -1380,8 +1392,7 @@
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 	} while (!queue_empty(llq));
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 	/* Sync our overflow flag, as we believe we're up to speed */
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-	llq->cons = Q_OVF(llq->prod) | Q_WRP(llq, llq->cons) |
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-		    Q_IDX(llq, llq->cons);
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+	queue_sync_cons_ovf(q);
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 	return IRQ_HANDLED;
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 }
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@@ -1439,9 +1450,7 @@
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 	} while (!queue_empty(llq));
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 	/* Sync our overflow flag, as we believe we're up to speed */
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-	llq->cons = Q_OVF(llq->prod) | Q_WRP(llq, llq->cons) |
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-		      Q_IDX(llq, llq->cons);
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-	queue_sync_cons_out(q);
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+	queue_sync_cons_ovf(q);
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 	return IRQ_HANDLED;
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 }
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