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Commit c7b5e55b authored by Laurentiu Tudor's avatar Laurentiu Tudor Committed by Greg Kroah-Hartman
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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: default avatarLaurentiu Tudor <laurentiu.tudor@nxp.com>
Acked-by: default avatarMadalin Bucur <madalin.bucur@nxp.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent a79feef3

drivers/net/ethernet/freescale/dpaa/dpaa_eth.c

+1 −1
Original line number Diff line number Diff line
@@ -1648,7 +1648,7 @@ 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]),