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authorDavid S. Miller <davem@davemloft.net>2020-07-25 17:49:04 -0700
committerDavid S. Miller <davem@davemloft.net>2020-07-25 17:49:04 -0700
commita57066b1a01977a646145f4ce8dfb4538b08368a (patch)
tree57c2b4fa2fc48e687a1820b9bf4ef4f4363be0f9 /drivers/net/ethernet/renesas/ravb_main.c
parentdfecd3e00cd32b2a6d1cfdb30b513dd42575ada3 (diff)
parent04300d66f0a06d572d9f2ad6768c38cabde22179 (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
The UDP reuseport conflict was a little bit tricky. The net-next code, via bpf-next, extracted the reuseport handling into a helper so that the BPF sk lookup code could invoke it. At the same time, the logic for reuseport handling of unconnected sockets changed via commit efc6b6f6c3113e8b203b9debfb72d81e0f3dcace which changed the logic to carry on the reuseport result into the rest of the lookup loop if we do not return immediately. This requires moving the reuseport_has_conns() logic into the callers. While we are here, get rid of inline directives as they do not belong in foo.c files. The other changes were cases of more straightforward overlapping modifications. Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/renesas/ravb_main.c')
-rw-r--r--drivers/net/ethernet/renesas/ravb_main.c26
1 files changed, 24 insertions, 2 deletions
diff --git a/drivers/net/ethernet/renesas/ravb_main.c b/drivers/net/ethernet/renesas/ravb_main.c
index a442bcf64b9c..99f7aae102ce 100644
--- a/drivers/net/ethernet/renesas/ravb_main.c
+++ b/drivers/net/ethernet/renesas/ravb_main.c
@@ -1450,6 +1450,7 @@ static void ravb_tx_timeout_work(struct work_struct *work)
struct ravb_private *priv = container_of(work, struct ravb_private,
work);
struct net_device *ndev = priv->ndev;
+ int error;
netif_tx_stop_all_queues(ndev);
@@ -1458,15 +1459,36 @@ static void ravb_tx_timeout_work(struct work_struct *work)
ravb_ptp_stop(ndev);
/* Wait for DMA stopping */
- ravb_stop_dma(ndev);
+ if (ravb_stop_dma(ndev)) {
+ /* If ravb_stop_dma() fails, the hardware is still operating
+ * for TX and/or RX. So, this should not call the following
+ * functions because ravb_dmac_init() is possible to fail too.
+ * Also, this should not retry ravb_stop_dma() again and again
+ * here because it's possible to wait forever. So, this just
+ * re-enables the TX and RX and skip the following
+ * re-initialization procedure.
+ */
+ ravb_rcv_snd_enable(ndev);
+ goto out;
+ }
ravb_ring_free(ndev, RAVB_BE);
ravb_ring_free(ndev, RAVB_NC);
/* Device init */
- ravb_dmac_init(ndev);
+ error = ravb_dmac_init(ndev);
+ if (error) {
+ /* If ravb_dmac_init() fails, descriptors are freed. So, this
+ * should return here to avoid re-enabling the TX and RX in
+ * ravb_emac_init().
+ */
+ netdev_err(ndev, "%s: ravb_dmac_init() failed, error %d\n",
+ __func__, error);
+ return;
+ }
ravb_emac_init(ndev);
+out:
/* Initialise PTP Clock driver */
if (priv->chip_id == RCAR_GEN2)
ravb_ptp_init(ndev, priv->pdev);