From 177e6b0fd6a96e7bc6d0db89cfc600c7fe96025e Mon Sep 17 00:00:00 2001
From: none <none>
Date: Mon, 1 Mar 2021 12:57:45 +0100
Subject: [PATCH] check if memory is aligned to 4K

---
 ddbridge/ddbridge-core.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/ddbridge/ddbridge-core.c b/ddbridge/ddbridge-core.c
index 4105c81..e29ecc4 100644
--- a/ddbridge/ddbridge-core.c
+++ b/ddbridge/ddbridge-core.c
@@ -305,6 +305,8 @@ static int dma_alloc(struct pci_dev *pdev, struct ddb_dma *dma, int dir)
 			if (!dma->vbuf[i])
 				return -ENOMEM;
 		}
+		if (((u64)dma->vbuf[i] & 0xfff))
+			dev_err(&pdev->dev, "DMA memory at %px not aligned!\n", dma->vbuf[i]);
 	}
 	return 0;
 }