| /Linux-v6.6/net/dsa/ |
| D | tag_brcm.c | 208 .needed_headroom = BRCM_TAG_LEN,
290 .needed_headroom = BRCM_LEG_TAG_LEN,
317 .needed_headroom = BRCM_TAG_LEN,
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| D | tag_ocelot.c | 194 .needed_headroom = OCELOT_TOTAL_TAG_LEN,
206 .needed_headroom = OCELOT_TOTAL_TAG_LEN,
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| D | tag_dsa.c | 349 .needed_headroom = DSA_HLEN,
391 .needed_headroom = EDSA_HLEN,
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| D | tag_ar9331.c | 89 .needed_headroom = AR9331_HDR_LEN,
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| D | tag_gswip.c | 107 .needed_headroom = GSWIP_RX_HEADER_LEN,
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| D | tag_mtk.c | 102 .needed_headroom = MTK_HDR_LEN,
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| D | tag_lan9303.c | 119 .needed_headroom = LAN9303_TAG_LEN,
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| D | tag_rzn1_a5psw.c | 110 .needed_headroom = A5PSW_TAG_LEN,
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| D | tag_rtl4_a.c | 121 .needed_headroom = RTL4_A_HDR_LEN,
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| D | tag_qca.c | 118 .needed_headroom = QCA_HDR_LEN,
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| D | tag_ocelot_8021q.c | 132 .needed_headroom = VLAN_HLEN,
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| D | tag_rtl8_4.c | 235 .needed_headroom = RTL8_4_TAG_LEN,
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| D | tag.h | 29 return ops->needed_headroom + ops->needed_tailroom; in dsa_tag_protocol_overhead()
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| D | slave.c | 918 int needed_headroom = dev->needed_headroom; in dsa_realloc_skb() local
929 needed_headroom = max_t(int, needed_headroom - skb_headroom(skb), 0); in dsa_realloc_skb()
932 if (likely(!needed_headroom && !needed_tailroom && !skb_cloned(skb))) in dsa_realloc_skb()
936 return pskb_expand_head(skb, needed_headroom, needed_tailroom, in dsa_realloc_skb()
2542 slave->needed_headroom = cpu_dp->tag_ops->needed_headroom; in dsa_slave_setup_tagger()
2548 slave->needed_headroom += master->needed_headroom; in dsa_slave_setup_tagger()
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| /Linux-v6.6/net/batman-adv/ |
| D | hard-interface.c | 543 unsigned short needed_headroom; in batadv_hardif_recalc_extra_skbroom() local
557 hard_iface->net_dev->needed_headroom); in batadv_hardif_recalc_extra_skbroom()
564 needed_headroom = lower_headroom + (lower_header_len - ETH_HLEN); in batadv_hardif_recalc_extra_skbroom()
565 needed_headroom += batadv_max_header_len(); in batadv_hardif_recalc_extra_skbroom()
568 needed_headroom += sizeof(struct batadv_frag_packet); in batadv_hardif_recalc_extra_skbroom()
570 soft_iface->needed_headroom = needed_headroom; in batadv_hardif_recalc_extra_skbroom()
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| /Linux-v6.6/net/ieee802154/6lowpan/ |
| D | tx.c | 108 frag = alloc_skb(wdev->needed_headroom + wdev->needed_tailroom + size, in lowpan_alloc_frag()
114 skb_reserve(frag, wdev->needed_headroom); in lowpan_alloc_frag()
263 if (unlikely(skb_headroom(skb) < ldev->needed_headroom || in lowpan_xmit()
267 nskb = skb_copy_expand(skb, ldev->needed_headroom, in lowpan_xmit()
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| D | core.c | 168 ldev->needed_headroom = LOWPAN_IPHC_MAX_HEADER_LEN + in lowpan_newlink()
169 wdev->needed_headroom; in lowpan_newlink()
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| /Linux-v6.6/net/ipv4/ |
| D | ip_tunnel.c | 315 hlen = tdev->hard_header_len + tdev->needed_headroom; in ip_tunnel_bind_dev()
319 dev->needed_headroom = t_hlen + hlen; in ip_tunnel_bind_dev()
635 if (headroom > READ_ONCE(dev->needed_headroom)) in ip_md_tunnel_xmit()
636 WRITE_ONCE(dev->needed_headroom, headroom); in ip_md_tunnel_xmit()
638 if (skb_cow_head(skb, READ_ONCE(dev->needed_headroom))) { in ip_md_tunnel_xmit()
821 if (max_headroom > READ_ONCE(dev->needed_headroom)) in ip_tunnel_xmit()
822 WRITE_ONCE(dev->needed_headroom, max_headroom); in ip_tunnel_xmit()
824 if (skb_cow_head(skb, READ_ONCE(dev->needed_headroom))) { in ip_tunnel_xmit()
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| D | ip_gre.c | 494 if (skb_cow_head(skb, dev->needed_headroom)) in gre_fb_xmit()
544 if (skb_cow_head(skb, dev->needed_headroom)) in erspan_fb_xmit()
653 if (skb_cow_head(skb, dev->needed_headroom)) in ipgre_xmit()
689 if (skb_cow_head(skb, dev->needed_headroom)) in erspan_xmit()
742 if (skb_cow_head(skb, dev->needed_headroom)) in gre_tap_xmit()
768 dev->needed_headroom += len; in ipgre_link_update()
962 dev->needed_headroom = tunnel->hlen + sizeof(tunnel->parms.iph); in __gre_tunnel_init()
1003 dev->needed_headroom = 0; in ipgre_tunnel_init()
1009 dev->needed_headroom = 0; in ipgre_tunnel_init()
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| /Linux-v6.6/net/l2tp/ |
| D | l2tp_eth.c | 215 dev->needed_headroom += sizeof(struct udphdr); in l2tp_eth_adjust_mtu()
241 dev->needed_headroom += session->hdr_len; in l2tp_eth_adjust_mtu()
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| /Linux-v6.6/drivers/net/ethernet/mscc/ |
| D | ocelot_fdma.c | 643 int needed_headroom = max_t(int, OCELOT_TAG_LEN - skb_headroom(skb), 0); in ocelot_fdma_prepare_skb() local
648 if (unlikely(needed_headroom || needed_tailroom || in ocelot_fdma_prepare_skb()
650 err = pskb_expand_head(skb, needed_headroom, needed_tailroom, in ocelot_fdma_prepare_skb()
794 dev->needed_headroom = OCELOT_TAG_LEN; in ocelot_fdma_netdev_init()
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| /Linux-v6.6/net/bridge/ |
| D | br_if.c | 321 br->dev->needed_headroom = new_hr; in update_headroom()
352 if (netdev_get_fwd_headroom(dev) == br->dev->needed_headroom) in del_nbp()
657 br_hr = br->dev->needed_headroom; in br_add_if()
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| /Linux-v6.6/drivers/net/wan/ |
| D | lapbether.c | 401 ndev->needed_headroom = -1 + 3 + 2 + dev->hard_header_len in lapbeth_new_device()
402 + dev->needed_headroom; in lapbeth_new_device()
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| /Linux-v6.6/drivers/net/ethernet/microchip/lan966x/ |
| D | lan966x_fdma.c | 806 int needed_headroom; in lan966x_fdma_xmit() local
825 needed_headroom = max_t(int, IFH_LEN_BYTES - skb_headroom(skb), 0); in lan966x_fdma_xmit()
827 if (needed_headroom || needed_tailroom || skb_header_cloned(skb)) { in lan966x_fdma_xmit()
828 err = pskb_expand_head(skb, needed_headroom, needed_tailroom, in lan966x_fdma_xmit()
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| /Linux-v6.6/drivers/net/wwan/ |
| D | mhi_wwan_mbim.c | 576 ndev->needed_headroom = sizeof(struct mbim_tx_hdr); in mhi_mbim_setup()
583 ndev->max_mtu = MHI_MAX_BUF_SZ - ndev->needed_headroom; in mhi_mbim_setup()
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