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dpaa_eth: fix SG frame cleanup

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[ Upstream commit 17170e6570 ]

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>
This commit is contained in:
Laurentiu Tudor
2019-05-03 16:03:11 +03:00
committed by Greg Kroah-Hartman
parent 100b03e871
commit 7dcee3606e
1 changed files with 1 additions and 1 deletions
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2
drivers/net/ethernet/freescale/dpaa/dpaa_eth.c
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@@ -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]),