@@ -1390,9 +1390,6 @@ static void qeth_tx_complete_buf(struct qeth_qdio_out_buffer *buf, bool error,
struct qeth_qdio_out_q *queue = buf->q;
struct sk_buff *skb;
- if (atomic_read(&buf->state) == QETH_QDIO_BUF_PENDING)
- qeth_notify_skbs(queue, buf, TX_NOTIFY_GENERALERROR);
-
/* Empty buffer? */
if (buf->next_element_to_fill == 0)
return;
@@ -1465,6 +1462,9 @@ static void qeth_tx_complete_pending_bufs(struct qeth_card *card,
QETH_CARD_TEXT(card, 5, "fp");
QETH_CARD_TEXT_(card, 5, "%lx", (long) buf);
+ if (drain)
+ qeth_notify_skbs(queue, buf,
+ TX_NOTIFY_GENERALERROR);
qeth_tx_complete_buf(buf, drain, 0);
list_del(&buf->list_entry);
The cited commit reworked the state machine for pending TX buffers. In qeth_iqd_tx_complete() it turned PENDING into a transient state, and uses NEED_QAOB for buffers that get parked while waiting for their QAOB completion. But it missed to adjust the check in qeth_tx_complete_buf(). So if qeth_tx_complete_pending_bufs() is called during teardown to drain the parked TX buffers, we no longer raise a notification for af_iucv. Instead of updating the checked state, just move this code into qeth_tx_complete_pending_bufs() itself. This also gets rid of the special-case in the common TX completion path. Fixes: 8908f36d20d8 ("s390/qeth: fix af_iucv notification race") Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com> --- drivers/s390/net/qeth_core_main.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-)