diff options
| author |   Edward Cree <ecree.xilinx@gmail.com> | 2021-04-20 13:28:28 +0100 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2021-04-20 17:03:53 -0700 |
| commit | 83b09a1807415608b387c7bc748d329fefc5617e (patch) | |
| tree | ea7886227e8300fb082b871679f68f585ec00187 /drivers/net/ethernet/sfc | |
| parent | sfc: farch: fix TX queue lookup in TX flush done handling (diff) | |
| download | linux-dev-83b09a1807415608b387c7bc748d329fefc5617e.tar.xz linux-dev-83b09a1807415608b387c7bc748d329fefc5617e.zip | |
sfc: farch: fix TX queue lookup in TX event handling
We're starting from a TXQ label, not a TXQ type, so
efx_channel_get_tx_queue() is inappropriate (and could return NULL,
leading to panics).
Fixes: 12804793b17c ("sfc: decouple TXQ type from label")
Cc: stable@vger.kernel.org
Signed-off-by: Edward Cree <ecree.xilinx@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/sfc')
| -rw-r--r-- | drivers/net/ethernet/sfc/farch.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/net/ethernet/sfc/farch.c b/drivers/net/ethernet/sfc/farch.c index f89ebe0073dd..49df02ecee91 100644 --- a/drivers/net/ethernet/sfc/farch.c +++ b/drivers/net/ethernet/sfc/farch.c @@ -835,14 +835,14 @@ efx_farch_handle_tx_event(struct efx_channel *channel, efx_qword_t *event) /* Transmit completion */ tx_ev_desc_ptr = EFX_QWORD_FIELD(*event, FSF_AZ_TX_EV_DESC_PTR); tx_ev_q_label = EFX_QWORD_FIELD(*event, FSF_AZ_TX_EV_Q_LABEL); - tx_queue = efx_channel_get_tx_queue( - channel, tx_ev_q_label % EFX_MAX_TXQ_PER_CHANNEL); + tx_queue = channel->tx_queue + + (tx_ev_q_label % EFX_MAX_TXQ_PER_CHANNEL); efx_xmit_done(tx_queue, tx_ev_desc_ptr); } else if (EFX_QWORD_FIELD(*event, FSF_AZ_TX_EV_WQ_FF_FULL)) { /* Rewrite the FIFO write pointer */ tx_ev_q_label = EFX_QWORD_FIELD(*event, FSF_AZ_TX_EV_Q_LABEL); - tx_queue = efx_channel_get_tx_queue( - channel, tx_ev_q_label % EFX_MAX_TXQ_PER_CHANNEL); + tx_queue = channel->tx_queue + + (tx_ev_q_label % EFX_MAX_TXQ_PER_CHANNEL); netif_tx_lock(efx->net_dev); efx_farch_notify_tx_desc(tx_queue); |