Make sure SKBTX_HW_TSTAMP (i.e. SOF_TIMESTAMPING_TX_HARDWARE) has been enabled
for this skb
This is a concept for discussion, more testing is needed.
It does fix the issue where normal socks that aren't expecting a timestamp will
not wake
up on select.
---
drivers/net/ethernet/cadence/macb_main.c | 12 +++++++-----
1 file changed, 7 insertions(+), 5 deletions(-)
diff --git a/drivers/net/ethernet/cadence/macb_main.c
b/drivers/net/ethernet/cadence/macb_main.c
index ad099fd01b45..b2f184fc1370 100644
--- a/drivers/net/ethernet/cadence/macb_main.c
+++ b/drivers/net/ethernet/cadence/macb_main.c
@@ -898,11 +898,13 @@ static void macb_tx_interrupt(struct macb_queue *queue)
/* First, update TX stats if needed */
if (skb) {
- if (gem_ptp_do_txstamp(queue, skb, desc) == 0) {
- /* skb now belongs to timestamp buffer
- * and will be removed later
- */
- tx_skb->skb = NULL;
+ if(unlikely(skb_shinfo(skb)->tx_flags &
SKBTX_HW_TSTAMP)) {
+ if (gem_ptp_do_txstamp(queue, skb,
desc) == 0) {
+ /* skb now belongs to timestamp
buffer
+ * and will be removed later
+ */
+ tx_skb->skb = NULL;
+ }
}
netdev_vdbg(bp->dev, "skb %u (data %p) TX
complete\n",
macb_tx_ring_wrap(bp, tail),
--
2.17.1
