[PATCH net-next 1/2] net: adopt skb_network_offset() and similar helpers
From: Eric Dumazet <edumazet@google.com>
Date: 2024-02-29 09:39:14
Subsystem:
bpf [general] (safe dynamic programs and tools), broadcom bnx2x 10 gigabit ethernet driver, hisilicon network subsystem 3 driver (hns3), hisilicon network subsystem driver, intel ethernet drivers, networking drivers, networking [general], networking [ipsec], networking [ipv4/ipv6], qlogic ql4xxx ethernet driver, qlogic qlcnic (1/10)gb ethernet driver, sfc network driver, the rest, wangxun ethernet driver, wireguard secure network tunnel · Maintainers:
Alexei Starovoitov, Daniel Borkmann, Andrii Nakryiko, Eduard Zingerman, Kumar Kartikeya Dwivedi, Sudarsana Kalluru, Manish Chopra, Jian Shen, Jijie Shao, Tony Nguyen, Przemek Kitszel, Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Steffen Klassert, Herbert Xu, David Ahern, Ido Schimmel, Shahed Shaikh, Edward Cree, Linus Torvalds, Jiawen Wu, Mengyuan Lou, Jason A. Donenfeld
This is a cleanup patch, making code a bit more concise.
1) Use skb_network_offset(skb) in place of
(skb_network_header(skb) - skb->data)
2) Use -skb_network_offset(skb) in place of
(skb->data - skb_network_header(skb))
3) Use skb_transport_offset(skb) in place of
(skb_transport_header(skb) - skb->data)
4) Use skb_inner_transport_offset(skb) in place of
(skb_inner_transport_header(skb) - skb->data)
Signed-off-by: Eric Dumazet <edumazet@google.com>
---
drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c | 11 +++++------
drivers/net/ethernet/hisilicon/hns3/hns3_enet.c | 4 ++--
drivers/net/ethernet/intel/i40e/i40e_main.c | 2 +-
drivers/net/ethernet/intel/iavf/iavf_main.c | 2 +-
drivers/net/ethernet/intel/igb/igb_main.c | 2 +-
drivers/net/ethernet/intel/igbvf/netdev.c | 2 +-
drivers/net/ethernet/intel/igc/igc_main.c | 2 +-
drivers/net/ethernet/intel/ixgbe/ixgbe_main.c | 2 +-
drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c | 2 +-
drivers/net/ethernet/qlogic/qede/qede_fp.c | 2 +-
drivers/net/ethernet/qlogic/qlcnic/qlcnic_io.c | 3 +--
drivers/net/ethernet/sfc/siena/tx_common.c | 5 ++---
drivers/net/ethernet/sfc/tx_common.c | 5 ++---
drivers/net/ethernet/sfc/tx_tso.c | 4 ++--
drivers/net/ethernet/sun/sunvnet_common.c | 4 ++--
drivers/net/ethernet/wangxun/libwx/wx_lib.c | 2 +-
drivers/net/wireguard/receive.c | 2 +-
kernel/bpf/cgroup.c | 2 +-
net/ipv4/raw.c | 2 +-
net/ipv4/xfrm4_input.c | 2 +-
net/ipv6/exthdrs.c | 4 ++--
net/ipv6/netfilter/nf_conntrack_reasm.c | 4 ++--
net/ipv6/reassembly.c | 4 ++--
net/ipv6/xfrm6_input.c | 2 +-
24 files changed, 36 insertions(+), 40 deletions(-)
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
index 528441b28c4efe73eae5aa366c66b5ef8cc35ef2..adcee8d9d6d9ad23397cf939abab1577c8929df1 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c@@ -3538,7 +3538,7 @@ static u8 bnx2x_set_pbd_csum_enc(struct bnx2x *bp, struct sk_buff *skb, u32 *parsing_data, u32 xmit_type) { *parsing_data |= - ((((u8 *)skb_inner_transport_header(skb) - skb->data) >> 1) << + ((skb_inner_transport_offset(skb) >> 1) << ETH_TX_PARSE_BD_E2_L4_HDR_START_OFFSET_W_SHIFT) & ETH_TX_PARSE_BD_E2_L4_HDR_START_OFFSET_W;
@@ -3570,7 +3570,7 @@ static u8 bnx2x_set_pbd_csum_e2(struct bnx2x *bp, struct sk_buff *skb, u32 *parsing_data, u32 xmit_type) { *parsing_data |= - ((((u8 *)skb_transport_header(skb) - skb->data) >> 1) << + ((skb_transport_offset(skb) >> 1) << ETH_TX_PARSE_BD_E2_L4_HDR_START_OFFSET_W_SHIFT) & ETH_TX_PARSE_BD_E2_L4_HDR_START_OFFSET_W;
@@ -3613,7 +3613,7 @@ static u8 bnx2x_set_pbd_csum(struct bnx2x *bp, struct sk_buff *skb, struct eth_tx_parse_bd_e1x *pbd, u32 xmit_type) { - u8 hlen = (skb_network_header(skb) - skb->data) >> 1; + u8 hlen = skb_network_offset(skb) >> 1; /* for now NS flag is not used in Linux */ pbd->global_data =
@@ -3667,8 +3667,7 @@ static void bnx2x_update_pbds_gso_enc(struct sk_buff *skb, u8 outerip_off, outerip_len = 0; /* from outer IP to transport */ - hlen_w = (skb_inner_transport_header(skb) - - skb_network_header(skb)) >> 1; + hlen_w = skb_inner_transport_offset(skb) >> 1; /* transport len */ hlen_w += inner_tcp_hdrlen(skb) >> 1;
@@ -3714,7 +3713,7 @@ static void bnx2x_update_pbds_gso_enc(struct sk_buff *skb, 0, IPPROTO_TCP, 0)); } - outerip_off = (skb_network_header(skb) - skb->data) >> 1; + outerip_off = (skb_network_offset(skb)) >> 1; *global_data |= outerip_off |
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
index f1695c889d3a07feaa8d2de9e782aa1ba847d0be..19668a8d22f76ac06259b18c27177bc2f1c7405e 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c@@ -2473,9 +2473,9 @@ static netdev_features_t hns3_features_check(struct sk_buff *skb, return features; if (skb->encapsulation) - len = skb_inner_transport_header(skb) - skb->data; + len = skb_inner_transport_offset(skb); else - len = skb_transport_header(skb) - skb->data; + len = skb_transport_offset(skb); /* Assume L4 is 60 byte as TCP is the only protocol with a * a flexible value, and it's max len is 60 bytes.
diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c
index f12092cdb1f0a5b22895b1aad2e79ed6b4833a0a..a67b13869016b8cb2eeac8a3e8e1d958497d8c89 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c@@ -13208,7 +13208,7 @@ static netdev_features_t i40e_features_check(struct sk_buff *skb, features &= ~NETIF_F_GSO_MASK; /* MACLEN can support at most 63 words */ - len = skb_network_header(skb) - skb->data; + len = skb_network_offset(skb); if (len & ~(63 * 2)) goto out_err;
diff --git a/drivers/net/ethernet/intel/iavf/iavf_main.c b/drivers/net/ethernet/intel/iavf/iavf_main.c
index 335fd13e86f717136763a2ad8334d247d0e3edb4..245c458e38aee3530badf3689547196043ae4ff7 100644
--- a/drivers/net/ethernet/intel/iavf/iavf_main.c
+++ b/drivers/net/ethernet/intel/iavf/iavf_main.c@@ -4423,7 +4423,7 @@ static netdev_features_t iavf_features_check(struct sk_buff *skb, features &= ~NETIF_F_GSO_MASK; /* MACLEN can support at most 63 words */ - len = skb_network_header(skb) - skb->data; + len = skb_network_offset(skb); if (len & ~(63 * 2)) goto out_err;
diff --git a/drivers/net/ethernet/intel/igb/igb_main.c b/drivers/net/ethernet/intel/igb/igb_main.c
index cebb44f51d5f5bbd1177b0caeb1e08f7a2fc30db..b3555655050341a069b6e0cca77e2275f90f87f4 100644
--- a/drivers/net/ethernet/intel/igb/igb_main.c
+++ b/drivers/net/ethernet/intel/igb/igb_main.c@@ -2538,7 +2538,7 @@ igb_features_check(struct sk_buff *skb, struct net_device *dev, unsigned int network_hdr_len, mac_hdr_len; /* Make certain the headers can be described by a context descriptor */ - mac_hdr_len = skb_network_header(skb) - skb->data; + mac_hdr_len = skb_network_offset(skb); if (unlikely(mac_hdr_len > IGB_MAX_MAC_HDR_LEN)) return features & ~(NETIF_F_HW_CSUM | NETIF_F_SCTP_CRC |
diff --git a/drivers/net/ethernet/intel/igbvf/netdev.c b/drivers/net/ethernet/intel/igbvf/netdev.c
index a4d4f00e6a8761673857feb019de7ebaf34900ef..b0cf310e6f7bd5c6b6c2ba1ae40072fd183d546d 100644
--- a/drivers/net/ethernet/intel/igbvf/netdev.c
+++ b/drivers/net/ethernet/intel/igbvf/netdev.c@@ -2655,7 +2655,7 @@ igbvf_features_check(struct sk_buff *skb, struct net_device *dev, unsigned int network_hdr_len, mac_hdr_len; /* Make certain the headers can be described by a context descriptor */ - mac_hdr_len = skb_network_header(skb) - skb->data; + mac_hdr_len = skb_network_offset(skb); if (unlikely(mac_hdr_len > IGBVF_MAX_MAC_HDR_LEN)) return features & ~(NETIF_F_HW_CSUM | NETIF_F_SCTP_CRC |
diff --git a/drivers/net/ethernet/intel/igc/igc_main.c b/drivers/net/ethernet/intel/igc/igc_main.c
index 3af52d238f3bf497f79d1f96f190a1afb6a3c654..34820f6a78b92f011f0ec5c220ca1622bdbd5c81 100644
--- a/drivers/net/ethernet/intel/igc/igc_main.c
+++ b/drivers/net/ethernet/intel/igc/igc_main.c@@ -5277,7 +5277,7 @@ igc_features_check(struct sk_buff *skb, struct net_device *dev, unsigned int network_hdr_len, mac_hdr_len; /* Make certain the headers can be described by a context descriptor */ - mac_hdr_len = skb_network_header(skb) - skb->data; + mac_hdr_len = skb_network_offset(skb); if (unlikely(mac_hdr_len > IGC_MAX_MAC_HDR_LEN)) return features & ~(NETIF_F_HW_CSUM | NETIF_F_SCTP_CRC |
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
index e23c3614fb104f021b85adf73903bde1af6f69c8..1e93edc967ed85612fe6053f3c4cf3172de009ee 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c@@ -10205,7 +10205,7 @@ ixgbe_features_check(struct sk_buff *skb, struct net_device *dev, unsigned int network_hdr_len, mac_hdr_len; /* Make certain the headers can be described by a context descriptor */ - mac_hdr_len = skb_network_header(skb) - skb->data; + mac_hdr_len = skb_network_offset(skb); if (unlikely(mac_hdr_len > IXGBE_MAX_MAC_HDR_LEN)) return features & ~(NETIF_F_HW_CSUM | NETIF_F_SCTP_CRC |
diff --git a/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c b/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
index a44e4bd561421a5ee398f29464ec591af32c8857..9c960017a6de508a1c6db292ff153fcd3472f422 100644
--- a/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
+++ b/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c@@ -4413,7 +4413,7 @@ ixgbevf_features_check(struct sk_buff *skb, struct net_device *dev, unsigned int network_hdr_len, mac_hdr_len; /* Make certain the headers can be described by a context descriptor */ - mac_hdr_len = skb_network_header(skb) - skb->data; + mac_hdr_len = skb_network_offset(skb); if (unlikely(mac_hdr_len > IXGBEVF_MAX_MAC_HDR_LEN)) return features & ~(NETIF_F_HW_CSUM | NETIF_F_SCTP_CRC |
diff --git a/drivers/net/ethernet/qlogic/qede/qede_fp.c b/drivers/net/ethernet/qlogic/qede/qede_fp.c
index cb1746bc0e0c5d65f8fb546cf1236b9b4d16e0e4..847fa62c80df822addd58374a66b794bf8314aae 100644
--- a/drivers/net/ethernet/qlogic/qede/qede_fp.c
+++ b/drivers/net/ethernet/qlogic/qede/qede_fp.c@@ -215,7 +215,7 @@ static void qede_set_params_for_ipv6_ext(struct sk_buff *skb, bd2_bits1 |= (1 << ETH_TX_DATA_2ND_BD_IPV6_EXT_SHIFT); - bd2_bits2 |= ((((u8 *)skb_transport_header(skb) - skb->data) >> 1) & + bd2_bits2 |= ((skb_transport_offset(skb) >> 1) & ETH_TX_DATA_2ND_BD_L4_HDR_START_OFFSET_W_MASK) << ETH_TX_DATA_2ND_BD_L4_HDR_START_OFFSET_W_SHIFT;
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_io.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_io.c
index 41894d154013bfd02ced02d465838efa26a5b3aa..b9dc0071c5de46deaad545e00abe336497d334c3 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_io.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_io.c@@ -446,8 +446,7 @@ static int qlcnic_tx_encap_pkt(struct qlcnic_adapter *adapter, encap_descr |= skb_network_offset(skb) << 10; first_desc->encap_descr = cpu_to_le16(encap_descr); - first_desc->tcp_hdr_offset = skb_inner_transport_header(skb) - - skb->data; + first_desc->tcp_hdr_offset = skb_inner_transport_offset(skb); first_desc->ip_hdr_offset = skb_inner_network_offset(skb); qlcnic_set_tx_flags_opcode(first_desc, flags, opcode);
diff --git a/drivers/net/ethernet/sfc/siena/tx_common.c b/drivers/net/ethernet/sfc/siena/tx_common.c
index a7a9ab304e13686dbddbb8718d1af4df664c44e5..71f9b5ec5ae4657d38c7457ac397421ec5cccced 100644
--- a/drivers/net/ethernet/sfc/siena/tx_common.c
+++ b/drivers/net/ethernet/sfc/siena/tx_common.c@@ -317,11 +317,10 @@ static int efx_tx_tso_header_length(struct sk_buff *skb) size_t header_len; if (skb->encapsulation) - header_len = skb_inner_transport_header(skb) - - skb->data + + header_len = skb_inner_transport_offset(skb) + (inner_tcp_hdr(skb)->doff << 2u); else - header_len = skb_transport_header(skb) - skb->data + + header_len = skb_transport_offset(skb) + (tcp_hdr(skb)->doff << 2u); return header_len; }
diff --git a/drivers/net/ethernet/sfc/tx_common.c b/drivers/net/ethernet/sfc/tx_common.c
index 9f2393d343715d96fc2fbb3a19e3a5c2fde601ff..2adb132b2f7e46951dbe65c4394741a072e63baf 100644
--- a/drivers/net/ethernet/sfc/tx_common.c
+++ b/drivers/net/ethernet/sfc/tx_common.c@@ -336,11 +336,10 @@ int efx_tx_tso_header_length(struct sk_buff *skb) size_t header_len; if (skb->encapsulation) - header_len = skb_inner_transport_header(skb) - - skb->data + + header_len = skb_inner_transport_offset(skb) + (inner_tcp_hdr(skb)->doff << 2u); else - header_len = skb_transport_header(skb) - skb->data + + header_len = skb_transport_offset(skb) + (tcp_hdr(skb)->doff << 2u); return header_len; }
diff --git a/drivers/net/ethernet/sfc/tx_tso.c b/drivers/net/ethernet/sfc/tx_tso.c
index 64a6768f75ea17fb1c8a8bd83764679f13afc9f8..ddf149db81801d520f7f0e3da07f197686c39813 100644
--- a/drivers/net/ethernet/sfc/tx_tso.c
+++ b/drivers/net/ethernet/sfc/tx_tso.c@@ -174,8 +174,8 @@ static int tso_start(struct tso_state *st, struct efx_nic *efx, unsigned int header_len, in_len; dma_addr_t dma_addr; - st->ip_off = skb_network_header(skb) - skb->data; - st->tcp_off = skb_transport_header(skb) - skb->data; + st->ip_off = skb_network_offset(skb); + st->tcp_off = skb_transport_offset(skb); header_len = st->tcp_off + (tcp_hdr(skb)->doff << 2u); in_len = skb_headlen(skb) - header_len; st->header_len = header_len;
diff --git a/drivers/net/ethernet/sun/sunvnet_common.c b/drivers/net/ethernet/sun/sunvnet_common.c
index 3525d5c0d694ca30fea4ddc12b1286a40bda359a..351609f4f011d71b5bd07923e78cadab9b2015c4 100644
--- a/drivers/net/ethernet/sun/sunvnet_common.c
+++ b/drivers/net/ethernet/sun/sunvnet_common.c@@ -1144,9 +1144,9 @@ static inline struct sk_buff *vnet_skb_shape(struct sk_buff *skb, int ncookies) nskb->protocol = skb->protocol; offset = skb_mac_header(skb) - skb->data; skb_set_mac_header(nskb, offset); - offset = skb_network_header(skb) - skb->data; + offset = skb_network_offset(skb); skb_set_network_header(nskb, offset); - offset = skb_transport_header(skb) - skb->data; + offset = skb_transport_offset(skb); skb_set_transport_header(nskb, offset); offset = 0;
diff --git a/drivers/net/ethernet/wangxun/libwx/wx_lib.c b/drivers/net/ethernet/wangxun/libwx/wx_lib.c
index 7cf02ab6de68bd87e4b2602936c8e198a4d5a0cb..6dff2c85682d8bcdd97ca614447e205919d5decd 100644
--- a/drivers/net/ethernet/wangxun/libwx/wx_lib.c
+++ b/drivers/net/ethernet/wangxun/libwx/wx_lib.c@@ -1257,7 +1257,7 @@ static int wx_tso(struct wx_ring *tx_ring, struct wx_tx_buffer *first, /* compute header lengths */ l4len = enc ? inner_tcp_hdrlen(skb) : tcp_hdrlen(skb); - *hdr_len = enc ? (skb_inner_transport_header(skb) - skb->data) : + *hdr_len = enc ? skb_inner_transport_offset(skb) : skb_transport_offset(skb); *hdr_len += l4len;
diff --git a/drivers/net/wireguard/receive.c b/drivers/net/wireguard/receive.c
index a176653c88616b1bc871fe52fcea778b5e189f69..df275b4fccb6d01a3bc22bc5bcc418b569a728e5 100644
--- a/drivers/net/wireguard/receive.c
+++ b/drivers/net/wireguard/receive.c@@ -263,7 +263,7 @@ static bool decrypt_packet(struct sk_buff *skb, struct noise_keypair *keypair) * call skb_cow_data, so that there's no chance that data is removed * from the skb, so that later we can extract the original endpoint. */ - offset = skb->data - skb_network_header(skb); + offset = -skb_network_offset(skb); skb_push(skb, offset); num_frags = skb_cow_data(skb, 0, &trailer); offset += sizeof(struct message_data);
diff --git a/kernel/bpf/cgroup.c b/kernel/bpf/cgroup.c
index 98e0e3835b28b615d447d4b5ff08b10831d858e9..6887417acf16551c2338e62ece3a847203040279 100644
--- a/kernel/bpf/cgroup.c
+++ b/kernel/bpf/cgroup.c@@ -1358,7 +1358,7 @@ int __cgroup_bpf_run_filter_skb(struct sock *sk, struct sk_buff *skb, enum cgroup_bpf_attach_type atype) { - unsigned int offset = skb->data - skb_network_header(skb); + unsigned int offset = -skb_network_offset(skb); struct sock *save_sk; void *saved_data_end; struct cgroup *cgrp;
diff --git a/net/ipv4/raw.c b/net/ipv4/raw.c
index aea89326c69793f94bb8489cdf0c93b7524ba3fc..25d2b7cc12a51fc8de2fd4de4b676ac5526a23a4 100644
--- a/net/ipv4/raw.c
+++ b/net/ipv4/raw.c@@ -310,7 +310,7 @@ int raw_rcv(struct sock *sk, struct sk_buff *skb) } nf_reset_ct(skb); - skb_push(skb, skb->data - skb_network_header(skb)); + skb_push(skb, -skb_network_offset(skb)); raw_rcv_skb(sk, skb); return 0;
diff --git a/net/ipv4/xfrm4_input.c b/net/ipv4/xfrm4_input.c
index c54676998eb60b7a47ee9defe8d97aec643dd1e1..dae35101d18959b73e60904f2225e59d1423455a 100644
--- a/net/ipv4/xfrm4_input.c
+++ b/net/ipv4/xfrm4_input.c@@ -58,7 +58,7 @@ int xfrm4_transport_finish(struct sk_buff *skb, int async) return -iph->protocol; #endif - __skb_push(skb, skb->data - skb_network_header(skb)); + __skb_push(skb, -skb_network_offset(skb)); iph->tot_len = htons(skb->len); ip_send_check(iph);
diff --git a/net/ipv6/exthdrs.c b/net/ipv6/exthdrs.c
index 727792907d6cb2132d965da4c7cb8447f07b2a68..5a5ac8f036509c0f0bd8d1f3bffbd9d44b2444fd 100644
--- a/net/ipv6/exthdrs.c
+++ b/net/ipv6/exthdrs.c@@ -802,7 +802,7 @@ static int ipv6_rthdr_rcv(struct sk_buff *skb) ip6_route_input(skb); if (skb_dst(skb)->error) { - skb_push(skb, skb->data - skb_network_header(skb)); + skb_push(skb, -skb_network_offset(skb)); dst_input(skb); return -1; }
@@ -819,7 +819,7 @@ static int ipv6_rthdr_rcv(struct sk_buff *skb) goto looped_back; } - skb_push(skb, skb->data - skb_network_header(skb)); + skb_push(skb, -skb_network_offset(skb)); dst_input(skb); return -1;
diff --git a/net/ipv6/netfilter/nf_conntrack_reasm.c b/net/ipv6/netfilter/nf_conntrack_reasm.c
index b2dd48911c8d62e65cdbb645cc341e12ebc1c3d7..1a51a44571c372184fb4dabc967dedb44cde976b 100644
--- a/net/ipv6/netfilter/nf_conntrack_reasm.c
+++ b/net/ipv6/netfilter/nf_conntrack_reasm.c@@ -327,9 +327,9 @@ static int nf_ct_frag6_reasm(struct frag_queue *fq, struct sk_buff *skb, if (!reasm_data) goto err; - payload_len = ((skb->data - skb_network_header(skb)) - + payload_len = -skb_network_offset(skb) - sizeof(struct ipv6hdr) + fq->q.len - - sizeof(struct frag_hdr)); + sizeof(struct frag_hdr); if (payload_len > IPV6_MAXPLEN) { net_dbg_ratelimited("nf_ct_frag6_reasm: payload len = %d\n", payload_len);
diff --git a/net/ipv6/reassembly.c b/net/ipv6/reassembly.c
index 5ebc47da1000c2e5fe3a6cfbfda74fe1c6f6db6d..acb4f119e11f0a5a5c0fcd0208436c34b9e4b9e8 100644
--- a/net/ipv6/reassembly.c
+++ b/net/ipv6/reassembly.c@@ -272,9 +272,9 @@ static int ip6_frag_reasm(struct frag_queue *fq, struct sk_buff *skb, if (!reasm_data) goto out_oom; - payload_len = ((skb->data - skb_network_header(skb)) - + payload_len = -skb_network_offset(skb) - sizeof(struct ipv6hdr) + fq->q.len - - sizeof(struct frag_hdr)); + sizeof(struct frag_hdr); if (payload_len > IPV6_MAXPLEN) goto out_oversize;
diff --git a/net/ipv6/xfrm6_input.c b/net/ipv6/xfrm6_input.c
index 6e36e5047fbab6bd2a4236006bab5efa546d6850..a17d783dc7c0d7de6695e1ccec3a7b3a87f31e88 100644
--- a/net/ipv6/xfrm6_input.c
+++ b/net/ipv6/xfrm6_input.c@@ -43,7 +43,7 @@ static int xfrm6_transport_finish2(struct net *net, struct sock *sk, int xfrm6_transport_finish(struct sk_buff *skb, int async) { struct xfrm_offload *xo = xfrm_offload(skb); - int nhlen = skb->data - skb_network_header(skb); + int nhlen = -skb_network_offset(skb); skb_network_header(skb)[IP6CB(skb)->nhoff] = XFRM_MODE_SKB_CB(skb)->protocol;
--
2.44.0.278.ge034bb2e1d-goog