Embedding net_device into structures prohibits the usage of flexible arrays in the net_device structure. For more details, see the discussion at [1]. Un-embed the net_device from struct qtnf_bus by converting it into a pointer. Then use the leverage alloc_netdev() to allocate the net_device object at qtnf_pcie_probe(). The free of the device occurs at qtnf_pcie_remove(). [1] https://lore.kernel.org/all/20240229225910.79e224cf@xxxxxxxxxx/ Signed-off-by: Breno Leitao <leitao@xxxxxxxxxx> --- drivers/net/wireless/quantenna/qtnfmac/bus.h | 2 +- drivers/net/wireless/quantenna/qtnfmac/pcie/pcie.c | 13 +++++++++++-- .../wireless/quantenna/qtnfmac/pcie/pearl_pcie.c | 6 +++--- .../wireless/quantenna/qtnfmac/pcie/topaz_pcie.c | 6 +++--- 4 files changed, 18 insertions(+), 9 deletions(-) diff --git a/drivers/net/wireless/quantenna/qtnfmac/bus.h b/drivers/net/wireless/quantenna/qtnfmac/bus.h index 3334c45aac13..7f8646e77ee0 100644 --- a/drivers/net/wireless/quantenna/qtnfmac/bus.h +++ b/drivers/net/wireless/quantenna/qtnfmac/bus.h @@ -59,7 +59,7 @@ struct qtnf_bus { struct qtnf_qlink_transport trans; struct qtnf_hw_info hw_info; struct napi_struct mux_napi; - struct net_device mux_dev; + struct net_device *mux_dev; struct workqueue_struct *workqueue; struct workqueue_struct *hprio_workqueue; struct work_struct fw_work; diff --git a/drivers/net/wireless/quantenna/qtnfmac/pcie/pcie.c b/drivers/net/wireless/quantenna/qtnfmac/pcie/pcie.c index 9ad4c120fa28..f8f55db2f454 100644 --- a/drivers/net/wireless/quantenna/qtnfmac/pcie/pcie.c +++ b/drivers/net/wireless/quantenna/qtnfmac/pcie/pcie.c @@ -372,7 +372,13 @@ static int qtnf_pcie_probe(struct pci_dev *pdev, const struct pci_device_id *id) goto error; } - init_dummy_netdev(&bus->mux_dev); + bus->mux_dev = alloc_netdev(0, "dummy", NET_NAME_UNKNOWN, + init_dummy_netdev); + if (!bus->mux_dev) { + ret = -ENOMEM; + goto error; + } + qtnf_pcie_init_irq(pcie_priv, use_msi); pcie_priv->sysctl_bar = sysctl_bar; pcie_priv->dmareg_bar = dmareg_bar; @@ -381,11 +387,13 @@ static int qtnf_pcie_probe(struct pci_dev *pdev, const struct pci_device_id *id) ret = pcie_priv->probe_cb(bus, tx_bd_size_param, rx_bd_size_param); if (ret) - goto error; + goto error_free; qtnf_pcie_bringup_fw_async(bus); return 0; +error_free: + free_netdev(bus->mux_dev); error: destroy_workqueue(pcie_priv->workqueue); pci_set_drvdata(pdev, NULL); @@ -417,6 +425,7 @@ static void qtnf_pcie_remove(struct pci_dev *dev) netif_napi_del(&bus->mux_napi); destroy_workqueue(priv->workqueue); tasklet_kill(&priv->reclaim_tq); + free_netdev(bus->mux_dev); qtnf_pcie_free_shm_ipc(priv); qtnf_debugfs_remove(bus); diff --git a/drivers/net/wireless/quantenna/qtnfmac/pcie/pearl_pcie.c b/drivers/net/wireless/quantenna/qtnfmac/pcie/pearl_pcie.c index 8c23a77d1671..c1a53e1ba3be 100644 --- a/drivers/net/wireless/quantenna/qtnfmac/pcie/pearl_pcie.c +++ b/drivers/net/wireless/quantenna/qtnfmac/pcie/pearl_pcie.c @@ -761,12 +761,12 @@ static int qtnf_pcie_pearl_rx_poll(struct napi_struct *napi, int budget) napi_gro_receive(napi, skb); } else { pr_debug("drop untagged skb\n"); - bus->mux_dev.stats.rx_dropped++; + bus->mux_dev->stats.rx_dropped++; dev_kfree_skb_any(skb); } } else { if (skb) { - bus->mux_dev.stats.rx_dropped++; + bus->mux_dev->stats.rx_dropped++; dev_kfree_skb_any(skb); } } @@ -1146,7 +1146,7 @@ static int qtnf_pcie_pearl_probe(struct qtnf_bus *bus, unsigned int tx_bd_size, } tasklet_setup(&ps->base.reclaim_tq, qtnf_pearl_reclaim_tasklet_fn); - netif_napi_add_weight(&bus->mux_dev, &bus->mux_napi, + netif_napi_add_weight(bus->mux_dev, &bus->mux_napi, qtnf_pcie_pearl_rx_poll, 10); ipc_int.fn = qtnf_pcie_pearl_ipc_gen_ep_int; diff --git a/drivers/net/wireless/quantenna/qtnfmac/pcie/topaz_pcie.c b/drivers/net/wireless/quantenna/qtnfmac/pcie/topaz_pcie.c index d83362578374..ef5c069542d4 100644 --- a/drivers/net/wireless/quantenna/qtnfmac/pcie/topaz_pcie.c +++ b/drivers/net/wireless/quantenna/qtnfmac/pcie/topaz_pcie.c @@ -667,12 +667,12 @@ static int qtnf_topaz_rx_poll(struct napi_struct *napi, int budget) netif_receive_skb(skb); } else { pr_debug("drop untagged skb\n"); - bus->mux_dev.stats.rx_dropped++; + bus->mux_dev->stats.rx_dropped++; dev_kfree_skb_any(skb); } } else { if (skb) { - bus->mux_dev.stats.rx_dropped++; + bus->mux_dev->stats.rx_dropped++; dev_kfree_skb_any(skb); } } @@ -1159,7 +1159,7 @@ static int qtnf_pcie_topaz_probe(struct qtnf_bus *bus, } tasklet_setup(&ts->base.reclaim_tq, qtnf_reclaim_tasklet_fn); - netif_napi_add_weight(&bus->mux_dev, &bus->mux_napi, + netif_napi_add_weight(bus->mux_dev, &bus->mux_napi, qtnf_topaz_rx_poll, 10); ipc_int.fn = qtnf_topaz_ipc_gen_ep_int; -- 2.43.0
