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 the private struct by converting it into a pointer. Then use the leverage the new alloc_netdev_dummy() helper to allocate and initialize dummy devices. [1] https://lore.kernel.org/all/20240229225910.79e224cf@xxxxxxxxxx/ Signed-off-by: Breno Leitao <leitao@xxxxxxxxxx> --- drivers/net/wireless/realtek/rtw89/core.c | 11 ++++++++--- drivers/net/wireless/realtek/rtw89/core.h | 4 ++-- drivers/net/wireless/realtek/rtw89/pci.c | 6 +++++- 3 files changed, 15 insertions(+), 6 deletions(-) PS: This is compile-tested only due to lack of hardware. diff --git a/drivers/net/wireless/realtek/rtw89/core.c b/drivers/net/wireless/realtek/rtw89/core.c index d474b8d5df3d..ade3e2a953a1 100644 --- a/drivers/net/wireless/realtek/rtw89/core.c +++ b/drivers/net/wireless/realtek/rtw89/core.c @@ -2485,11 +2485,15 @@ void rtw89_core_napi_stop(struct rtw89_dev *rtwdev) } EXPORT_SYMBOL(rtw89_core_napi_stop); -void rtw89_core_napi_init(struct rtw89_dev *rtwdev) +int rtw89_core_napi_init(struct rtw89_dev *rtwdev) { - init_dummy_netdev(&rtwdev->netdev); - netif_napi_add(&rtwdev->netdev, &rtwdev->napi, + rtwdev->netdev = alloc_netdev_dummy(0); + if (!rtwdev->netdev) + return -ENOMEM; + + netif_napi_add(rtwdev->netdev, &rtwdev->napi, rtwdev->hci.ops->napi_poll); + return 0; } EXPORT_SYMBOL(rtw89_core_napi_init); @@ -2497,6 +2501,7 @@ void rtw89_core_napi_deinit(struct rtw89_dev *rtwdev) { rtw89_core_napi_stop(rtwdev); netif_napi_del(&rtwdev->napi); + free_netdev(rtwdev->netdev); } EXPORT_SYMBOL(rtw89_core_napi_deinit); diff --git a/drivers/net/wireless/realtek/rtw89/core.h b/drivers/net/wireless/realtek/rtw89/core.h index fc1ed8612cf1..e206a2186747 100644 --- a/drivers/net/wireless/realtek/rtw89/core.h +++ b/drivers/net/wireless/realtek/rtw89/core.h @@ -5239,7 +5239,7 @@ struct rtw89_dev { struct rtw89_wow_param wow; /* napi structure */ - struct net_device netdev; + struct net_device *netdev; struct napi_struct napi; int napi_budget_countdown; @@ -6211,7 +6211,7 @@ void rtw89_core_query_rxdesc_v2(struct rtw89_dev *rtwdev, u8 *data, u32 data_offset); void rtw89_core_napi_start(struct rtw89_dev *rtwdev); void rtw89_core_napi_stop(struct rtw89_dev *rtwdev); -void rtw89_core_napi_init(struct rtw89_dev *rtwdev); +int rtw89_core_napi_init(struct rtw89_dev *rtwdev); void rtw89_core_napi_deinit(struct rtw89_dev *rtwdev); int rtw89_core_sta_add(struct rtw89_dev *rtwdev, struct ieee80211_vif *vif, diff --git a/drivers/net/wireless/realtek/rtw89/pci.c b/drivers/net/wireless/realtek/rtw89/pci.c index 19001130ad94..ef41c3a83b4a 100644 --- a/drivers/net/wireless/realtek/rtw89/pci.c +++ b/drivers/net/wireless/realtek/rtw89/pci.c @@ -4201,7 +4201,11 @@ int rtw89_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id) rtw89_pci_link_cfg(rtwdev); rtw89_pci_l1ss_cfg(rtwdev); - rtw89_core_napi_init(rtwdev); + ret = rtw89_core_napi_init(rtwdev); + if (ret) { + rtw89_err(rtwdev, "failed to init napi\n"); + goto err_clear_resource; + } ret = rtw89_pci_request_irq(rtwdev, pdev); if (ret) { -- 2.43.0
