From: Laurentiu Tudor laurentiu.tudor@nxp.com
[ 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(-)
--- a/drivers/net/ethernet/freescale/dpaa/dpaa_eth.c +++ b/drivers/net/ethernet/freescale/dpaa/dpaa_eth.c @@ -1648,7 +1648,7 @@ static struct sk_buff *dpaa_cleanup_tx_f 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]),