From 7dcee3606e2044ab7f092cc2f2cf1e61269128a2 Mon Sep 17 00:00:00 2001
From: Laurentiu Tudor <laurentiu.tudor@nxp.com>
Date: Fri, 3 May 2019 16:03:11 +0300
Subject: [PATCH] dpaa_eth: fix SG frame cleanup
[ Upstream commit 17170e6570c082717c142733d9a638bcd20551f8 ]
Fix issue with the entry indexing in the sg frame cleanup code being
off-by-1. This problem showed up when doing some basic iperf tests and
manifested in traffic coming to a halt.
Signed-off-by: Laurentiu Tudor <laurentiu.tudor@nxp.com>
Acked-by: Madalin Bucur <madalin.bucur@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/net/ethernet/freescale/dpaa/dpaa_eth.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/freescale/dpaa/dpaa_eth.c b/drivers/net/ethernet/freescale/dpaa/dpaa_eth.c
index a202c50d6fc7..d5f8bf87519a 100644
--- a/drivers/net/ethernet/freescale/dpaa/dpaa_eth.c
+++ b/drivers/net/ethernet/freescale/dpaa/dpaa_eth.c
@@ -1639,7 +1639,7 @@ static struct sk_buff *dpaa_cleanup_tx_fd(const struct dpaa_priv *priv,
qm_sg_entry_get_len(&sgt[0]), dma_dir);
/* remaining pages were mapped with skb_frag_dma_map() */
- for (i = 1; i < nr_frags; i++) {
+ for (i = 1; i <= nr_frags; i++) {
WARN_ON(qm_sg_entry_is_ext(&sgt[i]));
dma_unmap_page(dev, qm_sg_addr(&sgt[i]),
--
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