Re: [PATCH v3 06/11] xprtrdma: Add ro_unmap_sync method for FRWR

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+static void
+__frwr_dma_unmap(struct rpcrdma_xprt *r_xprt, struct rpcrdma_mr_seg *seg,
+		 int rc)
+{
+	struct ib_device *device = r_xprt->rx_ia.ri_device;
+	struct rpcrdma_mw *mw = seg->rl_mw;
+	int nsegs = seg->mr_nsegs;
+
+	seg->rl_mw = NULL;
+
+	while (nsegs--)
+		rpcrdma_unmap_one(device, seg++);

Chuck, shouldn't this be replaced with ib_dma_unmap_sg?

Sorry for the late comment (Didn't find enough time to properly
review this...)
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