diff options
author | Jakub Kicinski <kuba@kernel.org> | 2021-12-23 16:09:58 -0800 |
---|---|---|
committer | Jakub Kicinski <kuba@kernel.org> | 2021-12-23 16:09:58 -0800 |
commit | 8b3f91332291fa280a56215f5189baca185998f5 (patch) | |
tree | b89f58972c80ffacf57c4c9cedb5b4b03473c5be /drivers/net | |
parent | f2b551fad8d8f2ac5e1f810ad595298381e0b0c5 (diff) | |
parent | 391e5975c0208ce3739587b33eba08be3e473d79 (diff) | |
download | linux-stable-8b3f91332291fa280a56215f5189baca185998f5.tar.gz linux-stable-8b3f91332291fa280a56215f5189baca185998f5.tar.bz2 linux-stable-8b3f91332291fa280a56215f5189baca185998f5.zip |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
include/net/sock.h
commit 8f905c0e7354 ("inet: fully convert sk->sk_rx_dst to RCU rules")
commit 43f51df41729 ("net: move early demux fields close to sk_refcnt")
https://lore.kernel.org/all/20211222141641.0caa0ab3@canb.auug.org.au/
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'drivers/net')
23 files changed, 268 insertions, 147 deletions
diff --git a/drivers/net/bonding/bond_options.c b/drivers/net/bonding/bond_options.c index 0f48921c4f15..2e8484a91a0e 100644 --- a/drivers/net/bonding/bond_options.c +++ b/drivers/net/bonding/bond_options.c @@ -1554,7 +1554,7 @@ static int bond_option_ad_actor_system_set(struct bonding *bond, mac = (u8 *)&newval->value; } - if (!is_valid_ether_addr(mac)) + if (is_multicast_ether_addr(mac)) goto err; netdev_dbg(bond->dev, "Setting ad_actor_system to %pM\n", mac); diff --git a/drivers/net/ethernet/intel/ice/ice_base.c b/drivers/net/ethernet/intel/ice/ice_base.c index 44bdd0ed1629..1a5ece3bce79 100644 --- a/drivers/net/ethernet/intel/ice/ice_base.c +++ b/drivers/net/ethernet/intel/ice/ice_base.c @@ -6,6 +6,18 @@ #include "ice_lib.h" #include "ice_dcb_lib.h" +static bool ice_alloc_rx_buf_zc(struct ice_rx_ring *rx_ring) +{ + rx_ring->xdp_buf = kcalloc(rx_ring->count, sizeof(*rx_ring->xdp_buf), GFP_KERNEL); + return !!rx_ring->xdp_buf; +} + +static bool ice_alloc_rx_buf(struct ice_rx_ring *rx_ring) +{ + rx_ring->rx_buf = kcalloc(rx_ring->count, sizeof(*rx_ring->rx_buf), GFP_KERNEL); + return !!rx_ring->rx_buf; +} + /** * __ice_vsi_get_qs_contig - Assign a contiguous chunk of queues to VSI * @qs_cfg: gathered variables needed for PF->VSI queues assignment @@ -492,8 +504,11 @@ int ice_vsi_cfg_rxq(struct ice_rx_ring *ring) xdp_rxq_info_reg(&ring->xdp_rxq, ring->netdev, ring->q_index, ring->q_vector->napi.napi_id); + kfree(ring->rx_buf); ring->xsk_pool = ice_xsk_pool(ring); if (ring->xsk_pool) { + if (!ice_alloc_rx_buf_zc(ring)) + return -ENOMEM; xdp_rxq_info_unreg_mem_model(&ring->xdp_rxq); ring->rx_buf_len = @@ -508,6 +523,8 @@ int ice_vsi_cfg_rxq(struct ice_rx_ring *ring) dev_info(dev, "Registered XDP mem model MEM_TYPE_XSK_BUFF_POOL on Rx ring %d\n", ring->q_index); } else { + if (!ice_alloc_rx_buf(ring)) + return -ENOMEM; if (!xdp_rxq_info_is_reg(&ring->xdp_rxq)) /* coverity[check_return] */ xdp_rxq_info_reg(&ring->xdp_rxq, diff --git a/drivers/net/ethernet/intel/ice/ice_txrx.c b/drivers/net/ethernet/intel/ice/ice_txrx.c index 3987a0dd0e11..47057010b172 100644 --- a/drivers/net/ethernet/intel/ice/ice_txrx.c +++ b/drivers/net/ethernet/intel/ice/ice_txrx.c @@ -427,7 +427,10 @@ void ice_clean_rx_ring(struct ice_rx_ring *rx_ring) } rx_skip_free: - memset(rx_ring->rx_buf, 0, sizeof(*rx_ring->rx_buf) * rx_ring->count); + if (rx_ring->xsk_pool) + memset(rx_ring->xdp_buf, 0, array_size(rx_ring->count, sizeof(*rx_ring->xdp_buf))); + else + memset(rx_ring->rx_buf, 0, array_size(rx_ring->count, sizeof(*rx_ring->rx_buf))); /* Zero out the descriptor ring */ size = ALIGN(rx_ring->count * sizeof(union ice_32byte_rx_desc), @@ -454,8 +457,13 @@ void ice_free_rx_ring(struct ice_rx_ring *rx_ring) if (xdp_rxq_info_is_reg(&rx_ring->xdp_rxq)) xdp_rxq_info_unreg(&rx_ring->xdp_rxq); rx_ring->xdp_prog = NULL; - devm_kfree(rx_ring->dev, rx_ring->rx_buf); - rx_ring->rx_buf = NULL; + if (rx_ring->xsk_pool) { + kfree(rx_ring->xdp_buf); + rx_ring->xdp_buf = NULL; + } else { + kfree(rx_ring->rx_buf); + rx_ring->rx_buf = NULL; + } if (rx_ring->desc) { size = ALIGN(rx_ring->count * sizeof(union ice_32byte_rx_desc), @@ -483,8 +491,7 @@ int ice_setup_rx_ring(struct ice_rx_ring *rx_ring) /* warn if we are about to overwrite the pointer */ WARN_ON(rx_ring->rx_buf); rx_ring->rx_buf = - devm_kcalloc(dev, sizeof(*rx_ring->rx_buf), rx_ring->count, - GFP_KERNEL); + kcalloc(rx_ring->count, sizeof(*rx_ring->rx_buf), GFP_KERNEL); if (!rx_ring->rx_buf) return -ENOMEM; @@ -513,7 +520,7 @@ int ice_setup_rx_ring(struct ice_rx_ring *rx_ring) return 0; err: - devm_kfree(dev, rx_ring->rx_buf); + kfree(rx_ring->rx_buf); rx_ring->rx_buf = NULL; return -ENOMEM; } diff --git a/drivers/net/ethernet/intel/ice/ice_txrx.h b/drivers/net/ethernet/intel/ice/ice_txrx.h index c56dd1749903..b7b3bd4816f0 100644 --- a/drivers/net/ethernet/intel/ice/ice_txrx.h +++ b/drivers/net/ethernet/intel/ice/ice_txrx.h @@ -24,7 +24,6 @@ #define ICE_MAX_DATA_PER_TXD_ALIGNED \ (~(ICE_MAX_READ_REQ_SIZE - 1) & ICE_MAX_DATA_PER_TXD) -#define ICE_RX_BUF_WRITE 16 /* Must be power of 2 */ #define ICE_MAX_TXQ_PER_TXQG 128 /* Attempt to maximize the headroom available for incoming frames. We use a 2K diff --git a/drivers/net/ethernet/intel/ice/ice_xsk.c b/drivers/net/ethernet/intel/ice/ice_xsk.c index bb9a80847298..c895351b25e0 100644 --- a/drivers/net/ethernet/intel/ice/ice_xsk.c +++ b/drivers/net/ethernet/intel/ice/ice_xsk.c @@ -12,6 +12,11 @@ #include "ice_txrx_lib.h" #include "ice_lib.h" +static struct xdp_buff **ice_xdp_buf(struct ice_rx_ring *rx_ring, u32 idx) +{ + return &rx_ring->xdp_buf[idx]; +} + /** * ice_qp_reset_stats - Resets all stats for rings of given index * @vsi: VSI that contains rings of interest @@ -372,7 +377,7 @@ bool ice_alloc_rx_bufs_zc(struct ice_rx_ring *rx_ring, u16 count) dma_addr_t dma; rx_desc = ICE_RX_DESC(rx_ring, ntu); - xdp = &rx_ring->xdp_buf[ntu]; + xdp = ice_xdp_buf(rx_ring, ntu); nb_buffs = min_t(u16, count, rx_ring->count - ntu); nb_buffs = xsk_buff_alloc_batch(rx_ring->xsk_pool, xdp, nb_buffs); @@ -390,14 +395,9 @@ bool ice_alloc_rx_bufs_zc(struct ice_rx_ring *rx_ring, u16 count) } ntu += nb_buffs; - if (ntu == rx_ring->count) { - rx_desc = ICE_RX_DESC(rx_ring, 0); - xdp = rx_ring->xdp_buf; + if (ntu == rx_ring->count) ntu = 0; - } - /* clear the status bits for the next_to_use descriptor */ - rx_desc->wb.status_error0 = 0; ice_release_rx_desc(rx_ring, ntu); return count == nb_buffs; @@ -419,19 +419,18 @@ static void ice_bump_ntc(struct ice_rx_ring *rx_ring) /** * ice_construct_skb_zc - Create an sk_buff from zero-copy buffer * @rx_ring: Rx ring - * @xdp_arr: Pointer to the SW ring of xdp_buff pointers + * @xdp: Pointer to XDP buffer * * This function allocates a new skb from a zero-copy Rx buffer. * * Returns the skb on success, NULL on failure. */ static struct sk_buff * -ice_construct_skb_zc(struct ice_rx_ring *rx_ring, struct xdp_buff **xdp_arr) +ice_construct_skb_zc(struct ice_rx_ring *rx_ring, struct xdp_buff *xdp) { - struct xdp_buff *xdp = *xdp_arr; + unsigned int datasize_hard = xdp->data_end - xdp->data_hard_start; unsigned int metasize = xdp->data - xdp->data_meta; unsigned int datasize = xdp->data_end - xdp->data; - unsigned int datasize_hard = xdp->data_end - xdp->data_hard_start; struct sk_buff *skb; skb = __napi_alloc_skb(&rx_ring->q_vector->napi, datasize_hard, @@ -445,7 +444,6 @@ ice_construct_skb_zc(struct ice_rx_ring *rx_ring, struct xdp_buff **xdp_arr) skb_metadata_set(skb, metasize); xsk_buff_free(xdp); - *xdp_arr = NULL; return skb; } @@ -507,7 +505,6 @@ out_failure: int ice_clean_rx_irq_zc(struct ice_rx_ring *rx_ring, int budget) { unsigned int total_rx_bytes = 0, total_rx_packets = 0; - u16 cleaned_count = ICE_DESC_UNUSED(rx_ring); struct ice_tx_ring *xdp_ring; unsigned int xdp_xmit = 0; struct bpf_prog *xdp_prog; @@ -522,7 +519,7 @@ int ice_clean_rx_irq_zc(struct ice_rx_ring *rx_ring, int budget) while (likely(total_rx_packets < (unsigned int)budget)) { union ice_32b_rx_flex_desc *rx_desc; unsigned int size, xdp_res = 0; - struct xdp_buff **xdp; + struct xdp_buff *xdp; struct sk_buff *skb; u16 stat_err_bits; u16 vlan_tag = 0; @@ -540,31 +537,35 @@ int ice_clean_rx_irq_zc(struct ice_rx_ring *rx_ring, int budget) */ dma_rmb(); + xdp = *ice_xdp_buf(rx_ring, rx_ring->next_to_clean); + size = le16_to_cpu(rx_desc->wb.pkt_len) & ICE_RX_FLX_DESC_PKT_LEN_M; - if (!size) - break; + if (!size) { + xdp->data = NULL; + xdp->data_end = NULL; + xdp->data_hard_start = NULL; + xdp->data_meta = NULL; + goto construct_skb; + } - xdp = &rx_ring->xdp_buf[rx_ring->next_to_clean]; - xsk_buff_set_size(*xdp, size); - xsk_buff_dma_sync_for_cpu(*xdp, rx_ring->xsk_pool); + xsk_buff_set_size(xdp, size); + xsk_buff_dma_sync_for_cpu(xdp, rx_ring->xsk_pool); - xdp_res = ice_run_xdp_zc(rx_ring, *xdp, xdp_prog, xdp_ring); + xdp_res = ice_run_xdp_zc(rx_ring, xdp, xdp_prog, xdp_ring); if (xdp_res) { if (xdp_res & (ICE_XDP_TX | ICE_XDP_REDIR)) xdp_xmit |= xdp_res; else - xsk_buff_free(*xdp); + xsk_buff_free(xdp); - *xdp = NULL; total_rx_bytes += size; total_rx_packets++; - cleaned_count++; ice_bump_ntc(rx_ring); continue; } - +construct_skb: /* XDP_PASS path */ skb = ice_construct_skb_zc(rx_ring, xdp); if (!skb) { @@ -572,7 +573,6 @@ int ice_clean_rx_irq_zc(struct ice_rx_ring *rx_ring, int budget) break; } - cleaned_count++; ice_bump_ntc(rx_ring); if (eth_skb_pad(skb)) { @@ -594,8 +594,7 @@ int ice_clean_rx_irq_zc(struct ice_rx_ring *rx_ring, int budget) ice_receive_skb(rx_ring, skb, vlan_tag); } - if (cleaned_count >= ICE_RX_BUF_WRITE) - failure = !ice_alloc_rx_bufs_zc(rx_ring, cleaned_count); + failure = !ice_alloc_rx_bufs_zc(rx_ring, ICE_DESC_UNUSED(rx_ring)); ice_finalize_xdp_rx(xdp_ring, xdp_xmit); ice_update_rx_ring_stats(rx_ring, total_rx_packets, total_rx_bytes); @@ -811,15 +810,14 @@ bool ice_xsk_any_rx_ring_ena(struct ice_vsi *vsi) */ void ice_xsk_clean_rx_ring(struct ice_rx_ring *rx_ring) { - u16 i; - - for (i = 0; i < rx_ring->count; i++) { - struct xdp_buff **xdp = &rx_ring->xdp_buf[i]; + u16 count_mask = rx_ring->count - 1; + u16 ntc = rx_ring->next_to_clean; + u16 ntu = rx_ring->next_to_use; - if (!xdp) - continue; + for ( ; ntc != ntu; ntc = (ntc + 1) & count_mask) { + struct xdp_buff *xdp = *ice_xdp_buf(rx_ring, ntc); - *xdp = NULL; + xsk_buff_free(xdp); } } diff --git a/drivers/net/ethernet/intel/igb/igb_main.c b/drivers/net/ethernet/intel/igb/igb_main.c index 219aac3e62f5..ffe457e395a1 100644 --- a/drivers/net/ethernet/intel/igb/igb_main.c +++ b/drivers/net/ethernet/intel/igb/igb_main.c @@ -9254,7 +9254,7 @@ static int __maybe_unused igb_suspend(struct device *dev) return __igb_shutdown(to_pci_dev(dev), NULL, 0); } -static int __maybe_unused igb_resume(struct device *dev) +static int __maybe_unused __igb_resume(struct device *dev, bool rpm) { struct pci_dev *pdev = to_pci_dev(dev); struct net_device *netdev = pci_get_drvdata(pdev); @@ -9297,17 +9297,24 @@ static int __maybe_unused igb_resume(struct device *dev) wr32(E1000_WUS, ~0); - rtnl_lock(); + if (!rpm) + rtnl_lock(); if (!err && netif_running(netdev)) err = __igb_open(netdev, true); if (!err) netif_device_attach(netdev); - rtnl_unlock(); + if (!rpm) + rtnl_unlock(); return err; } +static int __maybe_unused igb_resume(struct device *dev) +{ + return __igb_resume(dev, false); +} + static int __maybe_unused igb_runtime_idle(struct device *dev) { struct net_device *netdev = dev_get_drvdata(dev); @@ -9326,7 +9333,7 @@ static int __maybe_unused igb_runtime_suspend(struct device *dev) static int __maybe_unused igb_runtime_resume(struct device *dev) { - return igb_resume(dev); + return __igb_resume(dev, true); } static void igb_shutdown(struct pci_dev *pdev) @@ -9442,7 +9449,7 @@ static pci_ers_result_t igb_io_error_detected(struct pci_dev *pdev, * @pdev: Pointer to PCI device * * Restart the card from scratch, as if from a cold-boot. Implementation - * resembles the first-half of the igb_resume routine. + * resembles the first-half of the __igb_resume routine. **/ static pci_ers_result_t igb_io_slot_reset(struct pci_dev *pdev) { @@ -9482,7 +9489,7 @@ static pci_ers_result_t igb_io_slot_reset(struct pci_dev *pdev) * * This callback is called when the error recovery driver tells us that * its OK to resume normal operation. Implementation resembles the - * second-half of the igb_resume routine. + * second-half of the __igb_resume routine. */ static void igb_io_resume(struct pci_dev *pdev) { diff --git a/drivers/net/ethernet/lantiq_xrx200.c b/drivers/net/ethernet/lantiq_xrx200.c index 0da09ea81980..96bd6f2b21ed 100644 --- a/drivers/net/ethernet/lantiq_xrx200.c +++ b/drivers/net/ethernet/lantiq_xrx200.c @@ -71,6 +71,8 @@ struct xrx200_priv { struct xrx200_chan chan_tx; struct xrx200_chan chan_rx; + u16 rx_buf_size; + struct net_device *net_dev; struct device *dev; @@ -97,6 +99,16 @@ static void xrx200_pmac_mask(struct xrx200_priv *priv, u32 clear, u32 set, xrx200_pmac_w32(priv, val, offset); } +static int xrx200_max_frame_len(int mtu) +{ + return VLAN_ETH_HLEN + mtu; +} + +static int xrx200_buffer_size(int mtu) +{ + return round_up(xrx200_max_frame_len(mtu), 4 * XRX200_DMA_BURST_LEN); +} + /* drop all the packets from the DMA ring */ static void xrx200_flush_dma(struct xrx200_chan *ch) { @@ -109,8 +121,7 @@ static void xrx200_flush_dma(struct xrx200_chan *ch) break; desc->ctl = LTQ_DMA_OWN | LTQ_DMA_RX_OFFSET(NET_IP_ALIGN) | - (ch->priv->net_dev->mtu + VLAN_ETH_HLEN + - ETH_FCS_LEN); + ch->priv->rx_buf_size; ch->dma.desc++; ch->dma.desc %= LTQ_DESC_NUM; } @@ -158,21 +169,21 @@ static int xrx200_close(struct net_device *net_dev) static int xrx200_alloc_skb(struct xrx200_chan *ch) { - int len = ch->priv->net_dev->mtu + VLAN_ETH_HLEN + ETH_FCS_LEN; struct sk_buff *skb = ch->skb[ch->dma.desc]; + struct xrx200_priv *priv = ch->priv; dma_addr_t mapping; int ret = 0; - ch->skb[ch->dma.desc] = netdev_alloc_skb_ip_align(ch->priv->net_dev, - len); + ch->skb[ch->dma.desc] = netdev_alloc_skb_ip_align(priv->net_dev, + priv->rx_buf_size); if (!ch->skb[ch->dma.desc]) { ret = -ENOMEM; goto skip; } - mapping = dma_map_single(ch->priv->dev, ch->skb[ch->dma.desc]->data, - len, DMA_FROM_DEVICE); - if (unlikely(dma_mapping_error(ch->priv->dev, mapping))) { + mapping = dma_map_single(priv->dev, ch->skb[ch->dma.desc]->data, + priv->rx_buf_size, DMA_FROM_DEVICE); + if (unlikely(dma_mapping_error(priv->dev, mapping))) { dev_kfree_skb_any(ch->skb[ch->dma.desc]); ch->skb[ch->dma.desc] = skb; ret = -ENOMEM; @@ -184,7 +195,7 @@ static int xrx200_alloc_skb(struct xrx200_chan *ch) wmb(); skip: ch->dma.desc_base[ch->dma.desc].ctl = - LTQ_DMA_OWN | LTQ_DMA_RX_OFFSET(NET_IP_ALIGN) | len; + LTQ_DMA_OWN | LTQ_DMA_RX_OFFSET(NET_IP_ALIGN) | priv->rx_buf_size; return ret; } @@ -356,6 +367,7 @@ xrx200_change_mtu(struct net_device *net_dev, int new_mtu) int ret = 0; net_dev->mtu = new_mtu; + priv->rx_buf_size = xrx200_buffer_size(new_mtu); if (new_mtu <= old_mtu) return ret; @@ -375,6 +387,7 @@ xrx200_change_mtu(struct net_device *net_dev, int new_mtu) ret = xrx200_alloc_skb(ch_rx); if (ret) { net_dev->mtu = old_mtu; + priv->rx_buf_size = xrx200_buffer_size(old_mtu); break; } dev_kfree_skb_any(skb); @@ -505,7 +518,8 @@ static int xrx200_probe(struct platform_device *pdev) net_dev->netdev_ops = &xrx200_netdev_ops; SET_NETDEV_DEV(net_dev, dev); net_dev->min_mtu = ETH_ZLEN; - net_dev->max_mtu = XRX200_DMA_DATA_LEN - VLAN_ETH_HLEN - ETH_FCS_LEN; + net_dev->max_mtu = XRX200_DMA_DATA_LEN - xrx200_max_frame_len(0); + priv->rx_buf_size = xrx200_buffer_size(ETH_DATA_LEN); /* load the memory ranges */ priv->pmac_reg = devm_platform_get_and_ioremap_resource(pdev, 0, NULL); diff --git a/drivers/net/ethernet/marvell/prestera/prestera_main.c b/drivers/net/ethernet/marvell/prestera/prestera_main.c index a0dbad5cb88d..69bac75d1a07 100644 --- a/drivers/net/ethernet/marvell/prestera/prestera_main.c +++ b/drivers/net/ethernet/marvell/prestera/prestera_main.c @@ -55,12 +55,14 @@ int prestera_port_pvid_set(struct prestera_port *port, u16 vid) struct prestera_port *prestera_port_find_by_hwid(struct prestera_switch *sw, u32 dev_id, u32 hw_id) { - struct prestera_port *port = NULL; + struct prestera_port *port = NULL, *tmp; read_lock(&sw->port_list_lock); - list_for_each_entry(port, &sw->port_list, list) { - if (port->dev_id == dev_id && port->hw_id == hw_id) + list_for_each_entry(tmp, &sw->port_list, list) { + if (tmp->dev_id == dev_id && tmp->hw_id == hw_id) { + port = tmp; break; + } } read_unlock(&sw->port_list_lock); @@ -69,12 +71,14 @@ struct prestera_port *prestera_port_find_by_hwid(struct prestera_switch *sw, struct prestera_port *prestera_find_port(struct prestera_switch *sw, u32 id) { - struct prestera_port *port = NULL; + struct prestera_port *port = NULL, *tmp; read_lock(&sw->port_list_lock); - list_for_each_entry(port, &sw->port_list, list) { - if (port->id == id) + list_for_each_entry(tmp, &sw->port_list, list) { + if (tmp->id == id) { + port = tmp; break; + } } read_unlock(&sw->port_list_lock); @@ -765,23 +769,27 @@ static int prestera_netdev_port_event(struct net_device *lower, struct net_device *dev, unsigned long event, void *ptr) { - struct netdev_notifier_changeupper_info *info = ptr; + struct netdev_notifier_info *info = ptr; + struct netdev_notifier_changeupper_info *cu_info; struct prestera_port *port = netdev_priv(dev); struct netlink_ext_ack *extack; struct net_device *upper; - extack = netdev_notifier_info_to_extack(&info->info); - upper = info->upper_dev; + extack = netdev_notifier_info_to_extack(info); + cu_info = container_of(info, + struct netdev_notifier_changeupper_info, + info); switch (event) { case NETDEV_PRECHANGEUPPER: + upper = cu_info->upper_dev; if (!netif_is_bridge_master(upper) && !netif_is_lag_master(upper)) { NL_SET_ERR_MSG_MOD(extack, "Unknown upper device type"); return -EINVAL; } - if (!info->linking) + if (!cu_info->linking) break; if (netdev_has_any_upper_dev(upper)) { @@ -790,7 +798,7 @@ static int prestera_netdev_port_event(struct net_device *lower, } if (netif_is_lag_master(upper) && - !prestera_lag_master_check(upper, info->upper_info, extack)) + !prestera_lag_master_check(upper, cu_info->upper_info, extack)) return -EOPNOTSUPP; if (netif_is_lag_master(upper) && vlan_uses_dev(dev)) { NL_SET_ERR_MSG_MOD(extack, @@ -806,14 +814,15 @@ static int prestera_netdev_port_event(struct net_device *lower, break; case NETDEV_CHANGEUPPER: + upper = cu_info->upper_dev; if (netif_is_bridge_master(upper)) { - if (info->linking) + if (cu_info->linking) return prestera_bridge_port_join(upper, port, extack); else prestera_bridge_port_leave(upper, port); } else if (netif_is_lag_master(upper)) { - if (info->linking) + if (cu_info->linking) return prestera_lag_port_add(port, upper); else prestera_lag_port_del(port); diff --git a/drivers/net/ethernet/micrel/ks8851_par.c b/drivers/net/ethernet/micrel/ks8851_par.c index 2e25798c610e..7f49042484bd 100644 --- a/drivers/net/ethernet/micrel/ks8851_par.c +++ b/drivers/net/ethernet/micrel/ks8851_par.c @@ -321,6 +321,8 @@ static int ks8851_probe_par(struct platform_device *pdev) return ret; netdev->irq = platform_get_irq(pdev, 0); + if (netdev->irq < 0) + return netdev->irq; return ks8851_probe_common(netdev, dev, msg_enable); } diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov.h b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov.h index 7160b42f51dd..d0111cb3b40e 100644 --- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov.h +++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov.h @@ -201,7 +201,7 @@ int qlcnic_sriov_get_vf_vport_info(struct qlcnic_adapter *, struct qlcnic_info *, u16); int qlcnic_sriov_cfg_vf_guest_vlan(struct qlcnic_adapter *, u16, u8); void qlcnic_sriov_free_vlans(struct qlcnic_adapter *); -void qlcnic_sriov_alloc_vlans(struct qlcnic_adapter *); +int qlcnic_sriov_alloc_vlans(struct qlcnic_adapter *); bool qlcnic_sriov_check_any_vlan(struct qlcnic_vf_info *); void qlcnic_sriov_del_vlan_id(struct qlcnic_sriov *, struct qlcnic_vf_info *, u16); diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov_common.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov_common.c index dd03be3fc82a..42a44c97572a 100644 --- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov_common.c +++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov_common.c @@ -432,7 +432,7 @@ static int qlcnic_sriov_set_guest_vlan_mode(struct qlcnic_adapter *adapter, struct qlcnic_cmd_args *cmd) { struct qlcnic_sriov *sriov = adapter->ahw->sriov; - int i, num_vlans; + int i, num_vlans, ret; u16 *vlans; if (sriov->allowed_vlans) @@ -443,7 +443,9 @@ static int qlcnic_sriov_set_guest_vlan_mode(struct qlcnic_adapter *adapter, dev_info(&adapter->pdev->dev, "Number of allowed Guest VLANs = %d\n", sriov->num_allowed_vlans); - qlcnic_sriov_alloc_vlans(adapter); + ret = qlcnic_sriov_alloc_vlans(adapter); + if (ret) + return ret; if (!sriov->any_vlan) return 0; @@ -2154,7 +2156,7 @@ static int qlcnic_sriov_vf_resume(struct qlcnic_adapter *adapter) return err; } -void qlcnic_sriov_alloc_vlans(struct qlcnic_adapter *adapter) +int qlcnic_sriov_alloc_vlans(struct qlcnic_adapter *adapter) { struct qlcnic_sriov *sriov = adapter->ahw->sriov; struct qlcnic_vf_info *vf; @@ -2164,7 +2166,11 @@ void qlcnic_sriov_alloc_vlans(struct qlcnic_adapter *adapter) vf = &sriov->vf_info[i]; vf->sriov_vlans = kcalloc(sriov->num_allowed_vlans, sizeof(*vf->sriov_vlans), GFP_KERNEL); + if (!vf->sriov_vlans) + return -ENOMEM; } + + return 0; } void qlcnic_sriov_free_vlans(struct qlcnic_adapter *adapter) diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov_pf.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov_pf.c index 447720b93e5a..e90fa97c0ae6 100644 --- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov_pf.c +++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov_pf.c @@ -597,7 +597,9 @@ static int __qlcnic_pci_sriov_enable(struct qlcnic_adapter *adapter, if (err) goto del_flr_queue; - qlcnic_sriov_alloc_vlans(adapter); + err = qlcnic_sriov_alloc_vlans(adapter); + if (err) + goto del_flr_queue; return err; diff --git a/drivers/net/ethernet/sfc/falcon/rx.c b/drivers/net/ethernet/sfc/falcon/rx.c index 966f13e7475d..11a6aee852e9 100644 --- a/drivers/net/ethernet/sfc/falcon/rx.c +++ b/drivers/net/ethernet/sfc/falcon/rx.c @@ -728,7 +728,10 @@ static void ef4_init_rx_recycle_ring(struct ef4_nic *efx, efx->rx_bufs_per_page); rx_queue->page_ring = kcalloc(page_ring_size, sizeof(*rx_queue->page_ring), GFP_KERNEL); - rx_queue->page_ptr_mask = page_ring_size - 1; + if (!rx_queue->page_ring) + rx_queue->page_ptr_mask = 0; + else + rx_queue->page_ptr_mask = page_ring_size - 1; } void ef4_init_rx_queue(struct ef4_rx_queue *rx_queue) diff --git a/drivers/net/ethernet/sfc/rx_common.c b/drivers/net/ethernet/sfc/rx_common.c index 68fc7d317693..0983abc0cc5f 100644 --- a/drivers/net/ethernet/sfc/rx_common.c +++ b/drivers/net/ethernet/sfc/rx_common.c @@ -150,7 +150,10 @@ static void efx_init_rx_recycle_ring(struct efx_rx_queue *rx_queue) efx->rx_bufs_per_page); rx_queue->page_ring = kcalloc(page_ring_size, sizeof(*rx_queue->page_ring), GFP_KERNEL); - rx_queue->page_ptr_mask = page_ring_size - 1; + if (!rx_queue->page_ring) + rx_queue->page_ptr_mask = 0; + else + rx_queue->page_ptr_mask = page_ring_size - 1; } static void efx_fini_rx_recycle_ring(struct efx_rx_queue *rx_queue) diff --git a/drivers/net/ethernet/smsc/smc911x.c b/drivers/net/ethernet/smsc/smc911x.c index 89381f796985..dd6f69ced4ee 100644 --- a/drivers/net/ethernet/smsc/smc911x.c +++ b/drivers/net/ethernet/smsc/smc911x.c @@ -2072,6 +2072,11 @@ static int smc911x_drv_probe(struct platform_device *pdev) ndev->dma = (unsigned char)-1; ndev->irq = platform_get_irq(pdev, 0); + if (ndev->irq < 0) { + ret = ndev->irq; + goto release_both; + } + lp = netdev_priv(ndev); lp->netdev = ndev; #ifdef SMC_DYNAMIC_BUS_CONFIG diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-visconti.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-visconti.c index 66fc8be34bb7..e2e0f977875d 100644 --- a/drivers/net/ethernet/stmicro/stmmac/dwmac-visconti.c +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-visconti.c @@ -26,7 +26,7 @@ #define ETHER_CLK_SEL_FREQ_SEL_125M (BIT(9) | BIT(8)) #define ETHER_CLK_SEL_FREQ_SEL_50M BIT(9) #define ETHER_CLK_SEL_FREQ_SEL_25M BIT(8) -#define ETHER_CLK_SEL_FREQ_SEL_2P5M BIT(0) +#define ETHER_CLK_SEL_FREQ_SEL_2P5M 0 #define ETHER_CLK_SEL_TX_CLK_EXT_SEL_IN BIT(0) #define ETHER_CLK_SEL_TX_CLK_EXT_SEL_TXC BIT(10) #define ETHER_CLK_SEL_TX_CLK_EXT_SEL_DIV BIT(11) diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_ptp.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_ptp.c index e14c97c04317..0d24ebd37873 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_ptp.c +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_ptp.c @@ -102,7 +102,7 @@ static int stmmac_adjust_time(struct ptp_clock_info *ptp, s64 delta) time.tv_nsec = priv->plat->est->btr_reserve[0]; time.tv_sec = priv->plat->est->btr_reserve[1]; basetime = timespec64_to_ktime(time); - cycle_time = priv->plat->est->ctr[1] * NSEC_PER_SEC + + cycle_time = (u64)priv->plat->est->ctr[1] * NSEC_PER_SEC + priv->plat->est->ctr[0]; time = stmmac_calc_tas_basetime(basetime, current_time_ns, diff --git a/drivers/net/fjes/fjes_main.c b/drivers/net/fjes/fjes_main.c index b06c17ac8d4e..ebd287039a54 100644 --- a/drivers/net/fjes/fjes_main.c +++ b/drivers/net/fjes/fjes_main.c @@ -1262,6 +1262,11 @@ static int fjes_probe(struct platform_device *plat_dev) hw->hw_res.start = res->start; hw->hw_res.size = resource_size(res); hw->hw_res.irq = platform_get_irq(plat_dev, 0); + if (hw->hw_res.irq < 0) { + err = hw->hw_res.irq; + goto err_free_control_wq; + } + err = fjes_hw_init(&adapter->hw); if (err) goto err_free_control_wq; diff --git a/drivers/net/hamradio/mkiss.c b/drivers/net/hamradio/mkiss.c index 7da2bb8a443c..edde9c3ae12b 100644 --- a/drivers/net/hamradio/mkiss.c +++ b/drivers/net/hamradio/mkiss.c @@ -794,14 +794,14 @@ static void mkiss_close(struct tty_struct *tty) */ netif_stop_queue(ax->dev); - ax->tty = NULL; - unregister_netdev(ax->dev); /* Free all AX25 frame buffers after unreg. */ kfree(ax->rbuff); kfree(ax->xbuff); + ax->tty = NULL; + free_netdev(ax->dev); } diff --git a/drivers/net/tun.c b/drivers/net/tun.c index 1572878c3403..45a67e72a02c 100644 --- a/drivers/net/tun.c +++ b/drivers/net/tun.c @@ -209,6 +209,9 @@ struct tun_struct { struct tun_prog __rcu *steering_prog; struct tun_prog __rcu *filter_prog; struct ethtool_link_ksettings link_ksettings; + /* init args */ + struct file *file; + struct ifreq *ifr; }; struct veth { @@ -216,6 +219,9 @@ struct veth { __be16 h_vlan_TCI; }; +static void tun_flow_init(struct tun_struct *tun); +static void tun_flow_uninit(struct tun_struct *tun); + static int tun_napi_receive(struct napi_struct *napi, int budget) { struct tun_file *tfile = container_of(napi, struct tun_file, napi); @@ -953,6 +959,49 @@ static int check_filter(struct tap_filter *filter, const struct sk_buff *skb) static const struct ethtool_ops tun_ethtool_ops; +static int tun_net_init(struct net_device *dev) +{ + struct tun_struct *tun = netdev_priv(dev); + struct ifreq *ifr = tun->ifr; + int err; + + dev->tstats = netdev_alloc_pcpu_stats(struct pcpu_sw_netstats); + if (!dev->tstats) + return -ENOMEM; + + spin_lock_init(&tun->lock); + + err = security_tun_dev_alloc_security(&tun->security); + if (err < 0) { + free_percpu(dev->tstats); + return err; + } + + tun_flow_init(tun); + + dev->hw_features = NETIF_F_SG | NETIF_F_FRAGLIST | + TUN_USER_FEATURES | NETIF_F_HW_VLAN_CTAG_TX | + NETIF_F_HW_VLAN_STAG_TX; + dev->features = dev->hw_features | NETIF_F_LLTX; + dev->vlan_features = dev->features & + ~(NETIF_F_HW_VLAN_CTAG_TX | + NETIF_F_HW_VLAN_STAG_TX); + + tun->flags = (tun->flags & ~TUN_FEATURES) | + (ifr->ifr_flags & TUN_FEATURES); + + INIT_LIST_HEAD(&tun->disabled); + err = tun_attach(tun, tun->file, false, ifr->ifr_flags & IFF_NAPI, + ifr->ifr_flags & IFF_NAPI_FRAGS, false); + if (err < 0) { + tun_flow_uninit(tun); + security_tun_dev_free_security(tun->security); + free_percpu(dev->tstats); + return err; + } + return 0; +} + /* Net device detach from fd. */ static void tun_net_uninit(struct net_device *dev) { @@ -1169,6 +1218,7 @@ static int tun_net_change_carrier(struct net_device *dev, bool new_carrier) } static const struct net_device_ops tun_netdev_ops = { + .ndo_init = tun_net_init, .ndo_uninit = tun_net_uninit, .ndo_open = tun_net_open, .ndo_stop = tun_net_close, @@ -1252,6 +1302,7 @@ static int tun_xdp_tx(struct net_device *dev, struct xdp_buff *xdp) } static const struct net_device_ops tap_netdev_ops = { + .ndo_init = tun_net_init, .ndo_uninit = tun_net_uninit, .ndo_open = tun_net_open, .ndo_stop = tun_net_close, @@ -1292,7 +1343,7 @@ static void tun_flow_uninit(struct tun_struct *tun) #define MAX_MTU 65535 /* Initialize net device. */ -static void tun_net_init(struct net_device *dev) +static void tun_net_initialize(struct net_device *dev) { struct tun_struct *tun = netdev_priv(dev); @@ -2206,11 +2257,6 @@ static void tun_free_netdev(struct net_device *dev) BUG_ON(!(list_empty(&tun->disabled))); free_percpu(dev->tstats); - /* We clear tstats so that tun_set_iff() can tell if - * tun_free_netdev() has been called from register_netdevice(). - */ - dev->tstats = NULL; - tun_flow_uninit(tun); security_tun_dev_free_security(tun->security); __tun_set_ebpf(tun, &tun->steering_prog, NULL); @@ -2716,41 +2762,16 @@ static int tun_set_iff(struct net *net, struct file *file, struct ifreq *ifr) tun->rx_batched = 0; RCU_INIT_POINTER(tun->steering_prog, NULL); - dev->tstats = netdev_alloc_pcpu_stats(struct pcpu_sw_netstats); - if (!dev->tstats) { - err = -ENOMEM; - goto err_free_dev; - } - - spin_lock_init(&tun->lock); - - err = security_tun_dev_alloc_security(&tun->security); - if (err < 0) - goto err_free_stat; - - tun_net_init(dev); - tun_flow_init(tun); + tun->ifr = ifr; + tun->file = file; - dev->hw_features = NETIF_F_SG | NETIF_F_FRAGLIST | - TUN_USER_FEATURES | NETIF_F_HW_VLAN_CTAG_TX | - NETIF_F_HW_VLAN_STAG_TX; - dev->features = dev->hw_features | NETIF_F_LLTX; - dev->vlan_features = dev->features & - ~(NETIF_F_HW_VLAN_CTAG_TX | - NETIF_F_HW_VLAN_STAG_TX); - - tun->flags = (tun->flags & ~TUN_FEATURES) | - (ifr->ifr_flags & TUN_FEATURES); - - INIT_LIST_HEAD(&tun->disabled); - err = tun_attach(tun, file, false, ifr->ifr_flags & IFF_NAPI, - ifr->ifr_flags & IFF_NAPI_FRAGS, false); - if (err < 0) - goto err_free_flow; + tun_net_initialize(dev); err = register_netdevice(tun->dev); - if (err < 0) - goto err_detach; + if (err < 0) { + free_netdev(dev); + return err; + } /* free_netdev() won't check refcnt, to avoid race * with dev_put() we need publish tun after registration. */ @@ -2767,24 +2788,6 @@ static int tun_set_iff(struct net *net, struct file *file, struct ifreq *ifr) strcpy(ifr->ifr_name, tun->dev->name); return 0; - -err_detach: - tun_detach_all(dev); - /* We are here because register_netdevice() has failed. - * If register_netdevice() already called tun_free_netdev() - * while dealing with the error, dev->stats has been cleared. - */ - if (!dev->tstats) - goto err_free_dev; - -err_free_flow: - tun_flow_uninit(tun); - security_tun_dev_free_security(tun->security); -err_free_stat: - free_percpu(dev->tstats); -err_free_dev: - free_netdev(dev); - return err; } static void tun_get_iff(struct tun_struct *tun, struct ifreq *ifr) diff --git a/drivers/net/usb/asix_common.c b/drivers/net/usb/asix_common.c index 42ba4af68090..71682970be58 100644 --- a/drivers/net/usb/asix_common.c +++ b/drivers/net/usb/asix_common.c @@ -9,6 +9,8 @@ #include "asix.h" +#define AX_HOST_EN_RETRIES 30 + int asix_read_cmd(struct usbnet *dev, u8 cmd, u16 value, u16 index, u16 size, void *data, int in_pm) { @@ -68,7 +70,7 @@ static int asix_check_host_enable(struct usbnet *dev, int in_pm) int i, ret; u8 smsr; - for (i = 0; i < 30; ++i) { + for (i = 0; i < AX_HOST_EN_RETRIES; ++i) { ret = asix_set_sw_mii(dev, in_pm); if (ret == -ENODEV || ret == -ETIMEDOUT) break; @@ -77,13 +79,13 @@ static int asix_check_host_enable(struct usbnet *dev, int in_pm) 0, 0, 1, &smsr, in_pm); if (ret == -ENODEV) break; - else if (ret < 0) + else if (ret < sizeof(smsr)) continue; else if (smsr & AX_HOST_EN) break; } - return ret; + return i >= AX_HOST_EN_RETRIES ? -ETIMEDOUT : ret; } static void reset_asix_rx_fixup_info(struct asix_rx_fixup_info *rx) diff --git a/drivers/net/usb/r8152.c b/drivers/net/usb/r8152.c index b88f07c77a6b..947371226c22 100644 --- a/drivers/net/usb/r8152.c +++ b/drivers/net/usb/r8152.c @@ -32,7 +32,7 @@ #define NETNEXT_VERSION "12" /* Information for net */ -#define NET_VERSION "11" +#define NET_VERSION "12" #define DRIVER_VERSION "v1." NETNEXT_VERSION "." NET_VERSION #define DRIVER_AUTHOR "Realtek linux nic maintainers <nic_swsd@realtek.com>" @@ -4016,6 +4016,11 @@ static void rtl_clear_bp(struct r8152 *tp, u16 type) ocp_write_word(tp, type, PLA_BP_BA, 0); } +static inline void rtl_reset_ocp_base(struct r8152 *tp) +{ + tp->ocp_base = -1; +} + static int rtl_phy_patch_request(struct r8152 *tp, bool request, bool wait) { u16 data, check; @@ -4087,8 +4092,6 @@ static int rtl_post_ram_code(struct r8152 *tp, u16 key_addr, bool wait) rtl_phy_patch_request(tp, false, wait); - ocp_write_word(tp, MCU_TYPE_PLA, PLA_OCP_GPHY_BASE, tp->ocp_base); - return 0; } @@ -4800,6 +4803,8 @@ static void rtl_ram_code_speed_up(struct r8152 *tp, struct fw_phy_speed_up *phy, u32 len; u8 *data; + rtl_reset_ocp_base(tp); + if (sram_read(tp, SRAM_GPHY_FW_VER) >= __le16_to_cpu(phy->version)) { dev_dbg(&tp->intf->dev, "PHY firmware has been the newest\n"); return; @@ -4845,7 +4850,8 @@ static void rtl_ram_code_speed_up(struct r8152 *tp, struct fw_phy_speed_up *phy, } } - ocp_write_word(tp, MCU_TYPE_PLA, PLA_OCP_GPHY_BASE, tp->ocp_base); + rtl_reset_ocp_base(tp); + rtl_phy_patch_request(tp, false, wait); if (sram_read(tp, SRAM_GPHY_FW_VER) == __le16_to_cpu(phy->version)) @@ -4861,6 +4867,8 @@ static int rtl8152_fw_phy_ver(struct r8152 *tp, struct fw_phy_ver *phy_ver) ver_addr = __le16_to_cpu(phy_ver->ver.addr); ver = __le16_to_cpu(phy_ver->ver.data); + rtl_reset_ocp_base(tp); + if (sram_read(tp, ver_addr) >= ver) { dev_dbg(&tp->intf->dev, "PHY firmware has been the newest\n"); return 0; @@ -4877,6 +4885,8 @@ static void rtl8152_fw_phy_fixup(struct r8152 *tp, struct fw_phy_fixup *fix) { u16 addr, data; + rtl_reset_ocp_base(tp); + addr = __le16_to_cpu(fix->setting.addr); data = ocp_reg_read(tp, addr); @@ -4908,6 +4918,8 @@ static void rtl8152_fw_phy_union_apply(struct r8152 *tp, struct fw_phy_union *ph u32 length; int i, num; + rtl_reset_ocp_base(tp); + num = phy->pre_num; for (i = 0; i < num; i++) sram_write(tp, __le16_to_cpu(phy->pre_set[i].addr), @@ -4938,6 +4950,8 @@ static void rtl8152_fw_phy_nc_apply(struct r8152 *tp, struct fw_phy_nc *phy) u32 length, i, num; __le16 *data; + rtl_reset_ocp_base(tp); + mode_reg = __le16_to_cpu(phy->mode_reg); sram_write(tp, mode_reg, __le16_to_cpu(phy->mode_pre)); sram_write(tp, __le16_to_cpu(phy->ba_reg), @@ -5107,6 +5121,7 @@ post_fw: if (rtl_fw->post_fw) rtl_fw->post_fw(tp); + rtl_reset_ocp_base(tp); strscpy(rtl_fw->version, fw_hdr->version, RTL_VER_SIZE); dev_info(&tp->intf->dev, "load %s successfully\n", rtl_fw->version); } @@ -6584,6 +6599,21 @@ static bool rtl8153_in_nway(struct r8152 *tp) return true; } +static void r8156_mdio_force_mode(struct r8152 *tp) +{ + u16 data; + + /* Select force mode through 0xa5b4 bit 15 + * 0: MDIO force mode + * 1: MMD force mode + */ + data = ocp_reg_read(tp, 0xa5b4); + if (data & BIT(15)) { + data &= ~BIT(15); + ocp_reg_write(tp, 0xa5b4, data); + } +} + static void set_carrier(struct r8152 *tp) { struct net_device *netdev = tp->netdev; @@ -8016,6 +8046,7 @@ static void r8156_init(struct r8152 *tp) ocp_data |= ACT_ODMA; ocp_write_byte(tp, MCU_TYPE_USB, USB_BMU_CONFIG, ocp_data); + r8156_mdio_force_mode(tp); rtl_tally_reset(tp); tp->coalesce = 15000; /* 15 us */ @@ -8145,6 +8176,7 @@ static void r8156b_init(struct r8152 *tp) ocp_data &= ~(RX_AGG_DISABLE | RX_ZERO_EN); ocp_write_word(tp, MCU_TYPE_USB, USB_USB_CTRL, ocp_data); + r8156_mdio_force_mode(tp); rtl_tally_reset(tp); tp->coalesce = 15000; /* 15 us */ @@ -8467,6 +8499,8 @@ static int rtl8152_resume(struct usb_interface *intf) mutex_lock(&tp->control); + rtl_reset_ocp_base(tp); + if (test_bit(SELECTIVE_SUSPEND, &tp->flags)) ret = rtl8152_runtime_resume(tp); else @@ -8482,6 +8516,7 @@ static int rtl8152_reset_resume(struct usb_interface *intf) struct r8152 *tp = usb_get_intfdata(intf); clear_bit(SELECTIVE_SUSPEND, &tp->flags); + rtl_reset_ocp_base(tp); tp->rtl_ops.init(tp); queue_delayed_work(system_long_wq, &tp->hw_phy_work, 0); set_ethernet_addr(tp, true); diff --git a/drivers/net/veth.c b/drivers/net/veth.c index 38f6da24f460..a4be530b3a1b 100644 --- a/drivers/net/veth.c +++ b/drivers/net/veth.c @@ -872,8 +872,12 @@ static int veth_xdp_rcv(struct veth_rq *rq, int budget, stats->xdp_bytes += skb->len; skb = veth_xdp_rcv_skb(rq, skb, bq, stats); - if (skb) - napi_gro_receive(&rq->xdp_napi, skb); + if (skb) { + if (skb_shared(skb) || skb_unclone(skb, GFP_ATOMIC)) + netif_receive_skb(skb); + else + napi_gro_receive(&rq->xdp_napi, skb); + } } done++; } |