Make sure we don't try to enqueue XDP_REDIRECT frames to an
inexistent FQ.

While it is guaranteed not to have more than one queue per core,
having fewer queues than CPUs on an interface is a valid
configuration.

Fixes: d678be1dc1ec ("dpaa2-eth: add XDP_REDIRECT support")
Reported-by: Jesper Dangaard Brouer <bro...@redhat.com>
Signed-off-by: Ioana Radulescu <ruxandra.radule...@nxp.com>
---
 drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c 
b/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c
index 2ba49e9..1a68052 100644
--- a/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c
+++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c
@@ -1817,7 +1817,7 @@ static int dpaa2_eth_xdp_xmit_frame(struct net_device 
*net_dev,
        dpaa2_fd_set_format(&fd, dpaa2_fd_single);
        dpaa2_fd_set_ctrl(&fd, FD_CTRL_PTA);
 
-       fq = &priv->fq[smp_processor_id()];
+       fq = &priv->fq[smp_processor_id() % dpaa2_eth_queue_count(priv)];
        for (i = 0; i < DPAA2_ETH_ENQUEUE_RETRIES; i++) {
                err = priv->enqueue(priv, fq, &fd, 0);
                if (err != -EBUSY)
-- 
2.7.4

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