* [PATCH 02/11 net-next v5] net: remove EXPORT_IPV6_MOD() and EXPORT_IPV6_MOD_GPL() macros
[not found] <20260325120928.15848-1-fmancera@suse.de>
@ 2026-03-25 12:08 ` Fernando Fernandez Mancera
2026-03-25 12:08 ` [PATCH 03/11 net-next v5] ipv6: replace IS_BUILTIN(CONFIG_IPV6) with IS_ENABLED(CONFIG_IPV6) Fernando Fernandez Mancera
2026-03-25 12:08 ` [PATCH 09/11 net-next v5] bpf: remove ipv6_bpf_stub completely and use direct function calls Fernando Fernandez Mancera
2 siblings, 0 replies; 10+ messages in thread
From: Fernando Fernandez Mancera @ 2026-03-25 12:08 UTC (permalink / raw)
To: netdev
Cc: Fernando Fernandez Mancera, David S. Miller, David Ahern,
Eric Dumazet, Jakub Kicinski, Paolo Abeni, Simon Horman,
Neal Cardwell, Kuniyuki Iwashima, Willem de Bruijn, Daniel Zahka,
Stanislav Fomichev, Samiullah Khawaja, Hangbin Liu,
Toke Høiland-Jørgensen, Ido Schimmel, Petr Machata,
Breno Leitao, Kees Cook, linux-kernel, bpf
As IPv6 is built-in only, the macro is always evaluating to an empty
one. Remove it completely from the code.
Signed-off-by: Fernando Fernandez Mancera <fmancera@suse.de>
---
include/net/ip.h | 8 --------
net/core/dev.c | 3 ---
net/core/hotdata.c | 1 -
net/core/neighbour.c | 1 -
net/ipv4/inet_connection_sock.c | 2 --
net/ipv4/inet_hashtables.c | 5 -----
net/ipv4/inetpeer.c | 4 ----
net/ipv4/metrics.c | 1 -
net/ipv4/ping.c | 16 ----------------
net/ipv4/syncookies.c | 4 ----
net/ipv4/tcp.c | 23 -----------------------
net/ipv4/tcp_fastopen.c | 1 -
net/ipv4/tcp_input.c | 7 -------
net/ipv4/tcp_ipv4.c | 21 ---------------------
net/ipv4/tcp_minisocks.c | 4 ----
net/ipv4/tcp_output.c | 6 ------
net/ipv4/tcp_timer.c | 1 -
net/ipv4/udp.c | 29 -----------------------------
net/psp/psp_sock.c | 1 -
19 files changed, 138 deletions(-)
diff --git a/include/net/ip.h b/include/net/ip.h
index f39a3787fedd..7f2fe1a8401b 100644
--- a/include/net/ip.h
+++ b/include/net/ip.h
@@ -692,14 +692,6 @@ static __inline__ void inet_reset_saddr(struct sock *sk)
#endif
-#if IS_MODULE(CONFIG_IPV6)
-#define EXPORT_IPV6_MOD(X) EXPORT_SYMBOL(X)
-#define EXPORT_IPV6_MOD_GPL(X) EXPORT_SYMBOL_GPL(X)
-#else
-#define EXPORT_IPV6_MOD(X)
-#define EXPORT_IPV6_MOD_GPL(X)
-#endif
-
static inline unsigned int ipv4_addr_hash(__be32 ip)
{
return (__force unsigned int) ip;
diff --git a/net/core/dev.c b/net/core/dev.c
index 200d44883fc1..f2c1c7007c6b 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -1182,7 +1182,6 @@ void netdev_copy_name(struct net_device *dev, char *name)
strscpy(name, dev->name, IFNAMSIZ);
} while (read_seqretry(&netdev_rename_lock, seq));
}
-EXPORT_IPV6_MOD_GPL(netdev_copy_name);
/**
* netdev_get_name - get a netdevice name, knowing its ifindex.
@@ -1312,7 +1311,6 @@ struct net_device *netdev_get_by_flags_rcu(struct net *net, netdevice_tracker *t
return NULL;
}
-EXPORT_IPV6_MOD(netdev_get_by_flags_rcu);
/**
* dev_valid_name - check if name is okay for network device
@@ -1838,7 +1836,6 @@ void netif_disable_lro(struct net_device *dev)
netdev_unlock_ops(lower_dev);
}
}
-EXPORT_IPV6_MOD(netif_disable_lro);
/**
* dev_disable_gro_hw - disable HW Generic Receive Offload on a device
diff --git a/net/core/hotdata.c b/net/core/hotdata.c
index a6db36580817..b0f51a726a3d 100644
--- a/net/core/hotdata.c
+++ b/net/core/hotdata.c
@@ -27,4 +27,3 @@ struct net_hotdata net_hotdata __cacheline_aligned = {
EXPORT_SYMBOL(net_hotdata);
struct net_aligned_data net_aligned_data;
-EXPORT_IPV6_MOD(net_aligned_data);
diff --git a/net/core/neighbour.c b/net/core/neighbour.c
index c56a4e7bf790..9e12524b67fa 100644
--- a/net/core/neighbour.c
+++ b/net/core/neighbour.c
@@ -778,7 +778,6 @@ struct pneigh_entry *pneigh_lookup(struct neigh_table *tbl,
return NULL;
}
-EXPORT_IPV6_MOD(pneigh_lookup);
int pneigh_create(struct neigh_table *tbl, struct net *net,
const void *pkey, struct net_device *dev,
diff --git a/net/ipv4/inet_connection_sock.c b/net/ipv4/inet_connection_sock.c
index 26e2e792916c..308df5bb4479 100644
--- a/net/ipv4/inet_connection_sock.c
+++ b/net/ipv4/inet_connection_sock.c
@@ -723,7 +723,6 @@ struct sock *inet_csk_accept(struct sock *sk, struct proto_accept_arg *arg)
arg->err = error;
return NULL;
}
-EXPORT_IPV6_MOD(inet_csk_accept);
/*
* Using different timers for retransmit, delayed acks and probes
@@ -1035,7 +1034,6 @@ void inet_csk_reqsk_queue_drop_and_put(struct sock *sk, struct request_sock *req
inet_csk_reqsk_queue_drop(sk, req);
reqsk_put(req);
}
-EXPORT_IPV6_MOD(inet_csk_reqsk_queue_drop_and_put);
static void reqsk_timer_handler(struct timer_list *t)
{
diff --git a/net/ipv4/inet_hashtables.c b/net/ipv4/inet_hashtables.c
index 13310c72b0bf..3e795547b40c 100644
--- a/net/ipv4/inet_hashtables.c
+++ b/net/ipv4/inet_hashtables.c
@@ -758,7 +758,6 @@ bool inet_ehash_nolisten(struct sock *sk, struct sock *osk, bool *found_dup_sk)
}
return ok;
}
-EXPORT_IPV6_MOD(inet_ehash_nolisten);
static int inet_reuseport_add_sock(struct sock *sk,
struct inet_listen_hashbucket *ilb)
@@ -826,7 +825,6 @@ int inet_hash(struct sock *sk)
return err;
}
-EXPORT_IPV6_MOD(inet_hash);
void inet_unhash(struct sock *sk)
{
@@ -859,7 +857,6 @@ void inet_unhash(struct sock *sk)
spin_unlock_bh(lock);
}
}
-EXPORT_IPV6_MOD(inet_unhash);
static bool inet_bind2_bucket_match(const struct inet_bind2_bucket *tb,
const struct net *net, unsigned short port,
@@ -1022,14 +1019,12 @@ int inet_bhash2_update_saddr(struct sock *sk, void *saddr, int family)
{
return __inet_bhash2_update_saddr(sk, saddr, family, false);
}
-EXPORT_IPV6_MOD(inet_bhash2_update_saddr);
void inet_bhash2_reset_saddr(struct sock *sk)
{
if (!(sk->sk_userlocks & SOCK_BINDADDR_LOCK))
__inet_bhash2_update_saddr(sk, NULL, 0, true);
}
-EXPORT_IPV6_MOD(inet_bhash2_reset_saddr);
/* RFC 6056 3.3.4. Algorithm 4: Double-Hash Port Selection Algorithm
* Note that we use 32bit integers (vs RFC 'short integers')
diff --git a/net/ipv4/inetpeer.c b/net/ipv4/inetpeer.c
index 9fa396d5f09f..d8083b9033c2 100644
--- a/net/ipv4/inetpeer.c
+++ b/net/ipv4/inetpeer.c
@@ -59,7 +59,6 @@ void inet_peer_base_init(struct inet_peer_base *bp)
seqlock_init(&bp->lock);
bp->total = 0;
}
-EXPORT_IPV6_MOD_GPL(inet_peer_base_init);
#define PEER_MAX_GC 32
@@ -217,7 +216,6 @@ struct inet_peer *inet_getpeer(struct inet_peer_base *base,
return p;
}
-EXPORT_IPV6_MOD_GPL(inet_getpeer);
void inet_putpeer(struct inet_peer *p)
{
@@ -268,7 +266,6 @@ bool inet_peer_xrlim_allow(struct inet_peer *peer, int timeout)
WRITE_ONCE(peer->rate_tokens, token);
return rc;
}
-EXPORT_IPV6_MOD(inet_peer_xrlim_allow);
void inetpeer_invalidate_tree(struct inet_peer_base *base)
{
@@ -285,4 +282,3 @@ void inetpeer_invalidate_tree(struct inet_peer_base *base)
base->total = 0;
}
-EXPORT_IPV6_MOD(inetpeer_invalidate_tree);
diff --git a/net/ipv4/metrics.c b/net/ipv4/metrics.c
index c1463add48c4..ad40762a8b38 100644
--- a/net/ipv4/metrics.c
+++ b/net/ipv4/metrics.c
@@ -88,4 +88,3 @@ struct dst_metrics *ip_fib_metrics_init(struct nlattr *fc_mx,
return fib_metrics;
}
-EXPORT_IPV6_MOD_GPL(ip_fib_metrics_init);
diff --git a/net/ipv4/ping.c b/net/ipv4/ping.c
index 92ab0e0f6f71..bda245c80893 100644
--- a/net/ipv4/ping.c
+++ b/net/ipv4/ping.c
@@ -56,7 +56,6 @@ struct ping_table {
static struct ping_table ping_table;
struct pingv6_ops pingv6_ops;
-EXPORT_IPV6_MOD_GPL(pingv6_ops);
static inline u32 ping_hashfn(const struct net *net, u32 num, u32 mask)
{
@@ -139,7 +138,6 @@ int ping_get_port(struct sock *sk, unsigned short ident)
spin_unlock(&ping_table.lock);
return -EADDRINUSE;
}
-EXPORT_IPV6_MOD_GPL(ping_get_port);
void ping_unhash(struct sock *sk)
{
@@ -154,7 +152,6 @@ void ping_unhash(struct sock *sk)
}
spin_unlock(&ping_table.lock);
}
-EXPORT_IPV6_MOD_GPL(ping_unhash);
/* Called under rcu_read_lock() */
static struct sock *ping_lookup(struct net *net, struct sk_buff *skb, u16 ident)
@@ -278,7 +275,6 @@ int ping_init_sock(struct sock *sk)
put_group_info(group_info);
return ret;
}
-EXPORT_IPV6_MOD_GPL(ping_init_sock);
void ping_close(struct sock *sk, long timeout)
{
@@ -288,7 +284,6 @@ void ping_close(struct sock *sk, long timeout)
sk_common_release(sk);
}
-EXPORT_IPV6_MOD_GPL(ping_close);
static int ping_pre_connect(struct sock *sk, struct sockaddr_unsized *uaddr,
int addr_len)
@@ -468,7 +463,6 @@ int ping_bind(struct sock *sk, struct sockaddr_unsized *uaddr, int addr_len)
pr_debug("ping_v4_bind -> %d\n", err);
return err;
}
-EXPORT_IPV6_MOD_GPL(ping_bind);
/*
* Is this a supported type of ICMP message?
@@ -601,7 +595,6 @@ void ping_err(struct sk_buff *skb, int offset, u32 info)
out:
return;
}
-EXPORT_IPV6_MOD_GPL(ping_err);
/*
* Copy and checksum an ICMP Echo packet from user space into a buffer
@@ -631,7 +624,6 @@ int ping_getfrag(void *from, char *to,
return 0;
}
-EXPORT_IPV6_MOD_GPL(ping_getfrag);
static int ping_v4_push_pending_frames(struct sock *sk, struct pingfakehdr *pfh,
struct flowi4 *fl4)
@@ -692,7 +684,6 @@ int ping_common_sendmsg(int family, struct msghdr *msg, size_t len,
return 0;
}
-EXPORT_IPV6_MOD_GPL(ping_common_sendmsg);
static int ping_v4_sendmsg(struct sock *sk, struct msghdr *msg, size_t len)
{
@@ -936,7 +927,6 @@ int ping_recvmsg(struct sock *sk, struct msghdr *msg, size_t len, int flags)
pr_debug("ping_recvmsg -> %d\n", err);
return err;
}
-EXPORT_IPV6_MOD_GPL(ping_recvmsg);
static enum skb_drop_reason __ping_queue_rcv_skb(struct sock *sk,
struct sk_buff *skb)
@@ -957,7 +947,6 @@ int ping_queue_rcv_skb(struct sock *sk, struct sk_buff *skb)
{
return __ping_queue_rcv_skb(sk, skb) ? -1 : 0;
}
-EXPORT_IPV6_MOD_GPL(ping_queue_rcv_skb);
/*
@@ -985,7 +974,6 @@ enum skb_drop_reason ping_rcv(struct sk_buff *skb)
kfree_skb_reason(skb, SKB_DROP_REASON_NO_SOCKET);
return SKB_DROP_REASON_NO_SOCKET;
}
-EXPORT_IPV6_MOD_GPL(ping_rcv);
struct proto ping_prot = {
.name = "PING",
@@ -1007,7 +995,6 @@ struct proto ping_prot = {
.put_port = ping_unhash,
.obj_size = sizeof(struct inet_sock),
};
-EXPORT_IPV6_MOD(ping_prot);
#ifdef CONFIG_PROC_FS
@@ -1072,7 +1059,6 @@ void *ping_seq_start(struct seq_file *seq, loff_t *pos, sa_family_t family)
return *pos ? ping_get_idx(seq, *pos-1) : SEQ_START_TOKEN;
}
-EXPORT_IPV6_MOD_GPL(ping_seq_start);
static void *ping_v4_seq_start(struct seq_file *seq, loff_t *pos)
{
@@ -1091,14 +1077,12 @@ void *ping_seq_next(struct seq_file *seq, void *v, loff_t *pos)
++*pos;
return sk;
}
-EXPORT_IPV6_MOD_GPL(ping_seq_next);
void ping_seq_stop(struct seq_file *seq, void *v)
__releases(ping_table.lock)
{
spin_unlock(&ping_table.lock);
}
-EXPORT_IPV6_MOD_GPL(ping_seq_stop);
static void ping_v4_format_sock(struct sock *sp, struct seq_file *f,
int bucket)
diff --git a/net/ipv4/syncookies.c b/net/ipv4/syncookies.c
index fc3affd9c801..f1474598d2c8 100644
--- a/net/ipv4/syncookies.c
+++ b/net/ipv4/syncookies.c
@@ -223,7 +223,6 @@ struct sock *tcp_get_cookie_sock(struct sock *sk, struct sk_buff *skb,
return NULL;
}
-EXPORT_IPV6_MOD(tcp_get_cookie_sock);
/*
* when syncookies are in effect and tcp timestamps are enabled we stored
@@ -260,7 +259,6 @@ bool cookie_timestamp_decode(const struct net *net,
return READ_ONCE(net->ipv4.sysctl_tcp_window_scaling) != 0;
}
-EXPORT_IPV6_MOD(cookie_timestamp_decode);
static int cookie_tcp_reqsk_init(struct sock *sk, struct sk_buff *skb,
struct request_sock *req)
@@ -312,7 +310,6 @@ struct request_sock *cookie_bpf_check(struct sock *sk, struct sk_buff *skb)
return req;
}
-EXPORT_IPV6_MOD_GPL(cookie_bpf_check);
#endif
struct request_sock *cookie_tcp_reqsk_alloc(const struct request_sock_ops *ops,
@@ -353,7 +350,6 @@ struct request_sock *cookie_tcp_reqsk_alloc(const struct request_sock_ops *ops,
return req;
}
-EXPORT_IPV6_MOD_GPL(cookie_tcp_reqsk_alloc);
static struct request_sock *cookie_tcp_check(struct net *net, struct sock *sk,
struct sk_buff *skb)
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index 516087c622ad..bd2c3c4587e1 100644
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -303,7 +303,6 @@ DEFINE_PER_CPU(u32, tcp_tw_isn);
EXPORT_PER_CPU_SYMBOL_GPL(tcp_tw_isn);
long sysctl_tcp_mem[3] __read_mostly;
-EXPORT_IPV6_MOD(sysctl_tcp_mem);
DEFINE_PER_CPU(int, tcp_memory_per_cpu_fw_alloc);
EXPORT_PER_CPU_SYMBOL_GPL(tcp_memory_per_cpu_fw_alloc);
@@ -317,7 +316,6 @@ EXPORT_SYMBOL(tcp_have_smc);
* Current number of TCP sockets.
*/
struct percpu_counter tcp_sockets_allocated ____cacheline_aligned_in_smp;
-EXPORT_IPV6_MOD(tcp_sockets_allocated);
/*
* Pressure flag: try to collapse.
@@ -341,7 +339,6 @@ void tcp_enter_memory_pressure(struct sock *sk)
if (!cmpxchg(&tcp_memory_pressure, 0, val))
NET_INC_STATS(sock_net(sk), LINUX_MIB_TCPMEMORYPRESSURES);
}
-EXPORT_IPV6_MOD_GPL(tcp_enter_memory_pressure);
void tcp_leave_memory_pressure(struct sock *sk)
{
@@ -354,7 +351,6 @@ void tcp_leave_memory_pressure(struct sock *sk)
NET_ADD_STATS(sock_net(sk), LINUX_MIB_TCPMEMORYPRESSURESCHRONO,
jiffies_to_msecs(jiffies - val));
}
-EXPORT_IPV6_MOD_GPL(tcp_leave_memory_pressure);
/* Convert seconds to retransmits based on initial and max timeout */
static u8 secs_to_retrans(int seconds, int timeout, int rto_max)
@@ -418,7 +414,6 @@ void tcp_md5_destruct_sock(struct sock *sk)
static_branch_slow_dec_deferred(&tcp_md5_needed);
}
}
-EXPORT_IPV6_MOD_GPL(tcp_md5_destruct_sock);
#endif
/* Address-family independent initialization for a tcp_sock.
@@ -486,7 +481,6 @@ void tcp_init_sock(struct sock *sk)
sk_sockets_allocated_inc(sk);
xa_init_flags(&sk->sk_user_frags, XA_FLAGS_ALLOC1);
}
-EXPORT_IPV6_MOD(tcp_init_sock);
static void tcp_tx_timestamp(struct sock *sk, struct sockcm_cookie *sockc)
{
@@ -691,7 +685,6 @@ int tcp_ioctl(struct sock *sk, int cmd, int *karg)
*karg = answ;
return 0;
}
-EXPORT_IPV6_MOD(tcp_ioctl);
void tcp_mark_push(struct tcp_sock *tp, struct sk_buff *skb)
{
@@ -908,7 +901,6 @@ ssize_t tcp_splice_read(struct socket *sock, loff_t *ppos,
return ret;
}
-EXPORT_IPV6_MOD(tcp_splice_read);
/* We allow to exceed memory limits for FIN packets to expedite
* connection tear down and (memory) recovery.
@@ -1483,7 +1475,6 @@ void tcp_splice_eof(struct socket *sock)
tcp_push(sk, 0, mss_now, tp->nonagle, size_goal);
release_sock(sk);
}
-EXPORT_IPV6_MOD_GPL(tcp_splice_eof);
/*
* Handle reading urgent data. BSD has very simple semantics for
@@ -1795,7 +1786,6 @@ int tcp_read_skb(struct sock *sk, skb_read_actor_t recv_actor)
}
return copied;
}
-EXPORT_IPV6_MOD(tcp_read_skb);
void tcp_read_done(struct sock *sk, size_t len)
{
@@ -1840,7 +1830,6 @@ int tcp_peek_len(struct socket *sock)
{
return tcp_inq(sock->sk);
}
-EXPORT_IPV6_MOD(tcp_peek_len);
/* Make sure sk_rcvbuf is big enough to satisfy SO_RCVLOWAT hint */
int tcp_set_rcvlowat(struct sock *sk, int val)
@@ -1870,7 +1859,6 @@ int tcp_set_rcvlowat(struct sock *sk, int val)
}
return 0;
}
-EXPORT_IPV6_MOD(tcp_set_rcvlowat);
#ifdef CONFIG_MMU
static const struct vm_operations_struct tcp_vm_ops = {
@@ -1889,7 +1877,6 @@ int tcp_mmap(struct file *file, struct socket *sock,
vma->vm_ops = &tcp_vm_ops;
return 0;
}
-EXPORT_IPV6_MOD(tcp_mmap);
static skb_frag_t *skb_advance_to_frag(struct sk_buff *skb, u32 offset_skb,
u32 *offset_frag)
@@ -2974,7 +2961,6 @@ int tcp_recvmsg(struct sock *sk, struct msghdr *msg, size_t len, int flags)
}
return ret;
}
-EXPORT_IPV6_MOD(tcp_recvmsg);
void tcp_set_state(struct sock *sk, int state)
{
@@ -3104,7 +3090,6 @@ void tcp_shutdown(struct sock *sk, int how)
tcp_send_fin(sk);
}
}
-EXPORT_IPV6_MOD(tcp_shutdown);
int tcp_orphan_count_sum(void)
{
@@ -3617,7 +3602,6 @@ static int tcp_repair_options_est(struct sock *sk, sockptr_t optbuf,
}
DEFINE_STATIC_KEY_FALSE(tcp_tx_delay_enabled);
-EXPORT_IPV6_MOD(tcp_tx_delay_enabled);
static void tcp_enable_tx_delay(struct sock *sk, int val)
{
@@ -4202,7 +4186,6 @@ int tcp_setsockopt(struct sock *sk, int level, int optname, sockptr_t optval,
optval, optlen);
return do_tcp_setsockopt(sk, level, optname, optval, optlen);
}
-EXPORT_IPV6_MOD(tcp_setsockopt);
static void tcp_get_info_chrono_stats(const struct tcp_sock *tp,
struct tcp_info *info)
@@ -4865,7 +4848,6 @@ bool tcp_bpf_bypass_getsockopt(int level, int optname)
return false;
}
-EXPORT_IPV6_MOD(tcp_bpf_bypass_getsockopt);
int tcp_getsockopt(struct sock *sk, int level, int optname, char __user *optval,
int __user *optlen)
@@ -4879,7 +4861,6 @@ int tcp_getsockopt(struct sock *sk, int level, int optname, char __user *optval,
return do_tcp_getsockopt(sk, level, optname, USER_SOCKPTR(optval),
USER_SOCKPTR(optlen));
}
-EXPORT_IPV6_MOD(tcp_getsockopt);
#ifdef CONFIG_TCP_MD5SIG
void tcp_md5_hash_skb_data(struct md5_ctx *ctx, const struct sk_buff *skb,
@@ -4910,7 +4891,6 @@ void tcp_md5_hash_skb_data(struct md5_ctx *ctx, const struct sk_buff *skb,
skb_walk_frags(skb, frag_iter)
tcp_md5_hash_skb_data(ctx, frag_iter, 0);
}
-EXPORT_IPV6_MOD(tcp_md5_hash_skb_data);
void tcp_md5_hash_key(struct md5_ctx *ctx,
const struct tcp_md5sig_key *key)
@@ -4922,7 +4902,6 @@ void tcp_md5_hash_key(struct md5_ctx *ctx,
*/
data_race(({ md5_update(ctx, key->key, keylen), 0; }));
}
-EXPORT_IPV6_MOD(tcp_md5_hash_key);
/* Called with rcu_read_lock() */
static enum skb_drop_reason
@@ -5023,7 +5002,6 @@ int tcp_do_parse_auth_options(const struct tcphdr *th,
}
return 0;
}
-EXPORT_IPV6_MOD(tcp_do_parse_auth_options);
#endif
/* Called with rcu_read_lock() */
@@ -5092,7 +5070,6 @@ tcp_inbound_hash(struct sock *sk, const struct request_sock *req,
return tcp_inbound_md5_hash(sk, skb, saddr, daddr, family,
l3index, md5_location);
}
-EXPORT_IPV6_MOD_GPL(tcp_inbound_hash);
void tcp_done(struct sock *sk)
{
diff --git a/net/ipv4/tcp_fastopen.c b/net/ipv4/tcp_fastopen.c
index 4e389d609f91..471c78be5513 100644
--- a/net/ipv4/tcp_fastopen.c
+++ b/net/ipv4/tcp_fastopen.c
@@ -559,7 +559,6 @@ bool tcp_fastopen_defer_connect(struct sock *sk, int *err)
}
return false;
}
-EXPORT_IPV6_MOD(tcp_fastopen_defer_connect);
/*
* The following code block is to deal with middle box issues with TFO:
diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index e6b2f4be7723..7171442c3ed7 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -814,7 +814,6 @@ void tcp_initialize_rcv_mss(struct sock *sk)
inet_csk(sk)->icsk_ack.rcv_mss = hint;
}
-EXPORT_IPV6_MOD(tcp_initialize_rcv_mss);
/* Receiver "autotuning" code.
*
@@ -3172,7 +3171,6 @@ void tcp_simple_retransmit(struct sock *sk)
*/
tcp_non_congestion_loss_retransmit(sk);
}
-EXPORT_IPV6_MOD(tcp_simple_retransmit);
void tcp_enter_recovery(struct sock *sk, bool ece_ack)
{
@@ -4843,7 +4841,6 @@ void tcp_done_with_error(struct sock *sk, int err)
if (!sock_flag(sk, SOCK_DEAD))
sk_error_report(sk);
}
-EXPORT_IPV6_MOD(tcp_done_with_error);
/* When we get a reset we do this. */
void tcp_reset(struct sock *sk, struct sk_buff *skb)
@@ -6665,7 +6662,6 @@ void tcp_rcv_established(struct sock *sk, struct sk_buff *skb)
discard:
tcp_drop_reason(sk, skb, reason);
}
-EXPORT_IPV6_MOD(tcp_rcv_established);
void tcp_init_transfer(struct sock *sk, int bpf_op, struct sk_buff *skb)
{
@@ -7384,7 +7380,6 @@ tcp_rcv_state_process(struct sock *sk, struct sk_buff *skb)
__kfree_skb(skb);
return 0;
}
-EXPORT_IPV6_MOD(tcp_rcv_state_process);
static inline void pr_drop_req(struct request_sock *req, __u16 port, int family)
{
@@ -7582,7 +7577,6 @@ u16 tcp_get_syncookie_mss(struct request_sock_ops *rsk_ops,
return mss;
}
-EXPORT_IPV6_MOD_GPL(tcp_get_syncookie_mss);
int tcp_conn_request(struct request_sock_ops *rsk_ops,
const struct tcp_request_sock_ops *af_ops,
@@ -7762,4 +7756,3 @@ int tcp_conn_request(struct request_sock_ops *rsk_ops,
tcp_listendrop(sk);
return 0;
}
-EXPORT_IPV6_MOD(tcp_conn_request);
diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c
index 2ea8253b737a..69ab236072e7 100644
--- a/net/ipv4/tcp_ipv4.c
+++ b/net/ipv4/tcp_ipv4.c
@@ -201,7 +201,6 @@ int tcp_twsk_unique(struct sock *sk, struct sock *sktw, void *twp)
return 0;
}
-EXPORT_IPV6_MOD_GPL(tcp_twsk_unique);
static int tcp_v4_pre_connect(struct sock *sk, struct sockaddr_unsized *uaddr,
int addr_len)
@@ -362,7 +361,6 @@ int tcp_v4_connect(struct sock *sk, struct sockaddr_unsized *uaddr, int addr_len
inet->inet_dport = 0;
return err;
}
-EXPORT_IPV6_MOD(tcp_v4_connect);
/*
* This routine reacts to ICMP_FRAG_NEEDED mtu indications as defined in RFC1191.
@@ -402,7 +400,6 @@ void tcp_v4_mtu_reduced(struct sock *sk)
tcp_simple_retransmit(sk);
} /* else let the usual retransmit timer handle it */
}
-EXPORT_IPV6_MOD(tcp_v4_mtu_reduced);
static void do_redirect(struct sk_buff *skb, struct sock *sk)
{
@@ -436,7 +433,6 @@ void tcp_req_err(struct sock *sk, u32 seq, bool abort)
}
reqsk_put(req);
}
-EXPORT_IPV6_MOD(tcp_req_err);
/* TCP-LD (RFC 6069) logic */
void tcp_ld_RTO_revert(struct sock *sk, u32 seq)
@@ -475,7 +471,6 @@ void tcp_ld_RTO_revert(struct sock *sk, u32 seq)
tcp_retransmit_timer(sk);
}
}
-EXPORT_IPV6_MOD(tcp_ld_RTO_revert);
/*
* This routine is called by the ICMP module when it gets some
@@ -1222,7 +1217,6 @@ static void tcp_v4_reqsk_destructor(struct request_sock *req)
*/
DEFINE_STATIC_KEY_DEFERRED_FALSE(tcp_md5_needed, HZ);
-EXPORT_IPV6_MOD(tcp_md5_needed);
static bool better_md5_match(struct tcp_md5sig_key *old, struct tcp_md5sig_key *new)
{
@@ -1281,7 +1275,6 @@ struct tcp_md5sig_key *__tcp_md5_do_lookup(const struct sock *sk, int l3index,
}
return best_match;
}
-EXPORT_IPV6_MOD(__tcp_md5_do_lookup);
static struct tcp_md5sig_key *tcp_md5_do_lookup_exact(const struct sock *sk,
const union tcp_md5_addr *addr,
@@ -1328,7 +1321,6 @@ struct tcp_md5sig_key *tcp_v4_md5_lookup(const struct sock *sk,
addr = (const union tcp_md5_addr *)&addr_sk->sk_daddr;
return tcp_md5_do_lookup(sk, l3index, addr, AF_INET);
}
-EXPORT_IPV6_MOD(tcp_v4_md5_lookup);
static int tcp_md5sig_info_add(struct sock *sk, gfp_t gfp)
{
@@ -1423,7 +1415,6 @@ int tcp_md5_do_add(struct sock *sk, const union tcp_md5_addr *addr,
return __tcp_md5_do_add(sk, addr, family, prefixlen, l3index, flags,
newkey, newkeylen, GFP_KERNEL);
}
-EXPORT_IPV6_MOD(tcp_md5_do_add);
int tcp_md5_key_copy(struct sock *sk, const union tcp_md5_addr *addr,
int family, u8 prefixlen, int l3index,
@@ -1451,7 +1442,6 @@ int tcp_md5_key_copy(struct sock *sk, const union tcp_md5_addr *addr,
key->flags, key->key, key->keylen,
sk_gfp_mask(sk, GFP_ATOMIC));
}
-EXPORT_IPV6_MOD(tcp_md5_key_copy);
int tcp_md5_do_del(struct sock *sk, const union tcp_md5_addr *addr, int family,
u8 prefixlen, int l3index, u8 flags)
@@ -1466,7 +1456,6 @@ int tcp_md5_do_del(struct sock *sk, const union tcp_md5_addr *addr, int family,
kfree_rcu(key, rcu);
return 0;
}
-EXPORT_IPV6_MOD(tcp_md5_do_del);
void tcp_clear_md5_list(struct sock *sk)
{
@@ -1604,7 +1593,6 @@ tcp_v4_md5_hash_skb(char *md5_hash, const struct tcp_md5sig_key *key,
tcp_md5_hash_key(&ctx, key);
md5_final(&ctx, md5_hash);
}
-EXPORT_IPV6_MOD(tcp_v4_md5_hash_skb);
#endif
@@ -1674,7 +1662,6 @@ int tcp_v4_conn_request(struct sock *sk, struct sk_buff *skb)
tcp_listendrop(sk);
return 0;
}
-EXPORT_IPV6_MOD(tcp_v4_conn_request);
/*
@@ -1800,7 +1787,6 @@ struct sock *tcp_v4_syn_recv_sock(const struct sock *sk, struct sk_buff *skb,
tcp_done(newsk);
goto exit;
}
-EXPORT_IPV6_MOD(tcp_v4_syn_recv_sock);
static struct sock *tcp_v4_cookie_check(struct sock *sk, struct sk_buff *skb)
{
@@ -2055,7 +2041,6 @@ bool tcp_add_backlog(struct sock *sk, struct sk_buff *skb,
}
return false;
}
-EXPORT_IPV6_MOD(tcp_add_backlog);
static void tcp_v4_restore_cb(struct sk_buff *skb)
{
@@ -2367,7 +2352,6 @@ void inet_sk_rx_dst_set(struct sock *sk, const struct sk_buff *skb)
sk->sk_rx_dst_ifindex = skb->skb_iif;
}
}
-EXPORT_IPV6_MOD(inet_sk_rx_dst_set);
const struct inet_connection_sock_af_ops ipv4_specific = {
.queue_xmit = ip_queue_xmit,
@@ -2380,7 +2364,6 @@ const struct inet_connection_sock_af_ops ipv4_specific = {
.getsockopt = ip_getsockopt,
.mtu_reduced = tcp_v4_mtu_reduced,
};
-EXPORT_IPV6_MOD(ipv4_specific);
#if defined(CONFIG_TCP_MD5SIG) || defined(CONFIG_TCP_AO)
static const struct tcp_sock_af_ops tcp_sock_ipv4_specific = {
@@ -2473,7 +2456,6 @@ void tcp_v4_destroy_sock(struct sock *sk)
sk_sockets_allocated_dec(sk);
}
-EXPORT_IPV6_MOD(tcp_v4_destroy_sock);
#ifdef CONFIG_PROC_FS
/* Proc filesystem TCP sock list dumping. */
@@ -2709,7 +2691,6 @@ void *tcp_seq_start(struct seq_file *seq, loff_t *pos)
st->last_pos = *pos;
return rc;
}
-EXPORT_IPV6_MOD(tcp_seq_start);
void *tcp_seq_next(struct seq_file *seq, void *v, loff_t *pos)
{
@@ -2740,7 +2721,6 @@ void *tcp_seq_next(struct seq_file *seq, void *v, loff_t *pos)
st->last_pos = *pos;
return rc;
}
-EXPORT_IPV6_MOD(tcp_seq_next);
void tcp_seq_stop(struct seq_file *seq, void *v)
{
@@ -2758,7 +2738,6 @@ void tcp_seq_stop(struct seq_file *seq, void *v)
break;
}
}
-EXPORT_IPV6_MOD(tcp_seq_stop);
static void get_openreq4(const struct request_sock *req,
struct seq_file *f, int i)
diff --git a/net/ipv4/tcp_minisocks.c b/net/ipv4/tcp_minisocks.c
index d350d794a959..199f0b579e89 100644
--- a/net/ipv4/tcp_minisocks.c
+++ b/net/ipv4/tcp_minisocks.c
@@ -287,7 +287,6 @@ tcp_timewait_state_process(struct inet_timewait_sock *tw, struct sk_buff *skb,
inet_twsk_put(tw);
return TCP_TW_SUCCESS;
}
-EXPORT_IPV6_MOD(tcp_timewait_state_process);
static void tcp_time_wait_init(struct sock *sk, struct tcp_timewait_sock *tcptw)
{
@@ -523,7 +522,6 @@ void tcp_ca_openreq_child(struct sock *sk, const struct dst_entry *dst)
tcp_set_ca_state(sk, TCP_CA_Open);
}
-EXPORT_IPV6_MOD_GPL(tcp_ca_openreq_child);
static void smc_check_reset_syn_req(const struct tcp_sock *oldtp,
struct request_sock *req,
@@ -976,7 +974,6 @@ struct sock *tcp_check_req(struct sock *sk, struct sk_buff *skb,
}
return NULL;
}
-EXPORT_IPV6_MOD(tcp_check_req);
/*
* Queue segment on the new socket if the new socket is active,
@@ -1018,4 +1015,3 @@ enum skb_drop_reason tcp_child_process(struct sock *parent, struct sock *child,
sock_put(child);
return reason;
}
-EXPORT_IPV6_MOD(tcp_child_process);
diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c
index 35c3b0ab5a0c..8e99687526a6 100644
--- a/net/ipv4/tcp_output.c
+++ b/net/ipv4/tcp_output.c
@@ -272,7 +272,6 @@ void tcp_select_initial_window(const struct sock *sk, int __space, __u32 mss,
WRITE_ONCE(*__window_clamp,
min_t(__u32, U16_MAX << (*rcv_wscale), window_clamp));
}
-EXPORT_IPV6_MOD(tcp_select_initial_window);
/* Chose a new window to advertise, update state in tcp_sock for the
* socket, and return result with RFC1323 scaling applied. The return
@@ -1361,7 +1360,6 @@ void tcp_release_cb(struct sock *sk)
if ((flags & TCPF_ACK_DEFERRED) && inet_csk_ack_scheduled(sk))
tcp_send_ack(sk);
}
-EXPORT_IPV6_MOD(tcp_release_cb);
void __init tcp_tsq_work_init(void)
{
@@ -2023,7 +2021,6 @@ int tcp_mtu_to_mss(struct sock *sk, int pmtu)
return __tcp_mtu_to_mss(sk, pmtu) -
(tcp_sk(sk)->tcp_header_len - sizeof(struct tcphdr));
}
-EXPORT_IPV6_MOD(tcp_mtu_to_mss);
/* Inverse of above */
int tcp_mss_to_mtu(struct sock *sk, int mss)
@@ -2096,7 +2093,6 @@ unsigned int tcp_sync_mss(struct sock *sk, u32 pmtu)
return mss_now;
}
-EXPORT_IPV6_MOD(tcp_sync_mss);
/* Compute the current effective MSS, taking SACKs and IP options,
* and even PMTU discovery events into account.
@@ -4077,7 +4073,6 @@ struct sk_buff *tcp_make_synack(const struct sock *sk, struct dst_entry *dst,
return skb;
}
-EXPORT_IPV6_MOD(tcp_make_synack);
static void tcp_ca_dst_init(struct sock *sk, const struct dst_entry *dst)
{
@@ -4658,4 +4653,3 @@ int tcp_rtx_synack(const struct sock *sk, struct request_sock *req)
}
return res;
}
-EXPORT_IPV6_MOD(tcp_rtx_synack);
diff --git a/net/ipv4/tcp_timer.c b/net/ipv4/tcp_timer.c
index 5a14a53a3c9e..ea99988795e7 100644
--- a/net/ipv4/tcp_timer.c
+++ b/net/ipv4/tcp_timer.c
@@ -774,7 +774,6 @@ void tcp_set_keepalive(struct sock *sk, int val)
else if (!val)
tcp_delete_keepalive_timer(sk);
}
-EXPORT_IPV6_MOD_GPL(tcp_set_keepalive);
static void tcp_keepalive_timer(struct timer_list *t)
{
diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c
index 7e3f9fd9de19..2cc6d059b692 100644
--- a/net/ipv4/udp.c
+++ b/net/ipv4/udp.c
@@ -126,7 +126,6 @@
struct udp_table udp_table __read_mostly;
long sysctl_udp_mem[3] __read_mostly;
-EXPORT_IPV6_MOD(sysctl_udp_mem);
DEFINE_PER_CPU(int, udp_memory_per_cpu_fw_alloc);
EXPORT_PER_CPU_SYMBOL_GPL(udp_memory_per_cpu_fw_alloc);
@@ -349,7 +348,6 @@ int udp_lib_get_port(struct sock *sk, unsigned short snum,
fail:
return error;
}
-EXPORT_IPV6_MOD(udp_lib_get_port);
static int udp_v4_get_port(struct sock *sk, unsigned short snum)
{
@@ -415,7 +413,6 @@ u32 udp_ehashfn(const struct net *net, const __be32 laddr, const __u16 lport,
return __inet_ehashfn(laddr, lport, faddr, fport,
udp_ehash_secret + net_hash_mix(net));
}
-EXPORT_IPV6_MOD(udp_ehashfn);
/**
* udp4_lib_lookup1() - Simplified lookup using primary hash (destination port)
@@ -650,7 +647,6 @@ void udp_lib_hash4(struct sock *sk, u16 hash)
spin_unlock_bh(&hslot->lock);
}
-EXPORT_IPV6_MOD(udp_lib_hash4);
/* call with sock lock */
void udp4_hash4(struct sock *sk)
@@ -666,7 +662,6 @@ void udp4_hash4(struct sock *sk)
udp_lib_hash4(sk, hash);
}
-EXPORT_IPV6_MOD(udp4_hash4);
#endif /* CONFIG_BASE_SMALL */
/* UDP is nearly always wildcards out the wazoo, it makes no sense to try
@@ -802,11 +797,9 @@ static inline bool __udp_is_mcast_sock(struct net *net, const struct sock *sk,
}
DEFINE_STATIC_KEY_FALSE(udp_encap_needed_key);
-EXPORT_IPV6_MOD(udp_encap_needed_key);
#if IS_ENABLED(CONFIG_IPV6)
DEFINE_STATIC_KEY_FALSE(udpv6_encap_needed_key);
-EXPORT_IPV6_MOD(udpv6_encap_needed_key);
#endif
void udp_encap_enable(void)
@@ -1026,7 +1019,6 @@ void udp_flush_pending_frames(struct sock *sk)
ip_flush_pending_frames(sk);
}
}
-EXPORT_IPV6_MOD(udp_flush_pending_frames);
/**
* udp4_hwcsum - handle outgoing HW checksumming
@@ -1204,7 +1196,6 @@ int udp_push_pending_frames(struct sock *sk)
WRITE_ONCE(up->pending, 0);
return err;
}
-EXPORT_IPV6_MOD(udp_push_pending_frames);
static int __udp_cmsg_send(struct cmsghdr *cmsg, u16 *gso_size)
{
@@ -1241,7 +1232,6 @@ int udp_cmsg_send(struct sock *sk, struct msghdr *msg, u16 *gso_size)
return need_ip;
}
-EXPORT_IPV6_MOD_GPL(udp_cmsg_send);
int udp_sendmsg(struct sock *sk, struct msghdr *msg, size_t len)
{
@@ -1532,7 +1522,6 @@ void udp_splice_eof(struct socket *sock)
udp_push_pending_frames(sk);
release_sock(sk);
}
-EXPORT_IPV6_MOD_GPL(udp_splice_eof);
#define UDP_SKB_IS_STATELESS 0x80000000
@@ -1647,7 +1636,6 @@ void udp_skb_destructor(struct sock *sk, struct sk_buff *skb)
prefetch(&skb->data);
udp_rmem_release(sk, udp_skb_truesize(skb), 1, false);
}
-EXPORT_IPV6_MOD(udp_skb_destructor);
/* as above, but the caller held the rx queue lock, too */
static void udp_skb_dtor_locked(struct sock *sk, struct sk_buff *skb)
@@ -1800,7 +1788,6 @@ int __udp_enqueue_schedule_skb(struct sock *sk, struct sk_buff *skb)
udp_drops_inc(sk);
return err;
}
-EXPORT_IPV6_MOD_GPL(__udp_enqueue_schedule_skb);
void udp_destruct_common(struct sock *sk)
{
@@ -1817,7 +1804,6 @@ void udp_destruct_common(struct sock *sk)
udp_rmem_release(sk, total, 0, true);
kfree(up->udp_prod_queue);
}
-EXPORT_IPV6_MOD_GPL(udp_destruct_common);
static void udp_destruct_sock(struct sock *sk)
{
@@ -1855,7 +1841,6 @@ void skb_consume_udp(struct sock *sk, struct sk_buff *skb, int len)
skb_release_head_state(skb);
__consume_stateless_skb(skb);
}
-EXPORT_IPV6_MOD_GPL(skb_consume_udp);
static struct sk_buff *__first_packet_length(struct sock *sk,
struct sk_buff_head *rcvq,
@@ -1937,7 +1922,6 @@ int udp_ioctl(struct sock *sk, int cmd, int *karg)
return 0;
}
-EXPORT_IPV6_MOD(udp_ioctl);
struct sk_buff *__skb_recv_udp(struct sock *sk, unsigned int flags,
int *off, int *err)
@@ -2032,7 +2016,6 @@ int udp_read_skb(struct sock *sk, skb_read_actor_t recv_actor)
WARN_ON_ONCE(!skb_set_owner_sk_safe(skb, sk));
return recv_actor(sk, skb);
}
-EXPORT_IPV6_MOD(udp_read_skb);
/*
* This should be easy, if there is something there we
@@ -2154,7 +2137,6 @@ int udp_pre_connect(struct sock *sk, struct sockaddr_unsized *uaddr,
return BPF_CGROUP_RUN_PROG_INET4_CONNECT_LOCK(sk, uaddr, &addr_len);
}
-EXPORT_IPV6_MOD(udp_pre_connect);
static int udp_connect(struct sock *sk, struct sockaddr_unsized *uaddr,
int addr_len)
@@ -2204,7 +2186,6 @@ int udp_disconnect(struct sock *sk, int flags)
release_sock(sk);
return 0;
}
-EXPORT_IPV6_MOD(udp_disconnect);
void udp_lib_unhash(struct sock *sk)
{
@@ -2236,7 +2217,6 @@ void udp_lib_unhash(struct sock *sk)
spin_unlock_bh(&hslot->lock);
}
}
-EXPORT_IPV6_MOD(udp_lib_unhash);
/*
* inet_rcv_saddr was changed, we must rehash secondary hash
@@ -2306,7 +2286,6 @@ void udp_lib_rehash(struct sock *sk, u16 newhash, u16 newhash4)
udp_sk(sk)->udp_portaddr_hash = newhash;
}
}
-EXPORT_IPV6_MOD(udp_lib_rehash);
static void udp_v4_rehash(struct sock *sk)
{
@@ -2470,7 +2449,6 @@ bool udp_sk_rx_dst_set(struct sock *sk, struct dst_entry *dst)
}
return false;
}
-EXPORT_IPV6_MOD(udp_sk_rx_dst_set);
/*
* Multicasts and broadcasts go to each listener.
@@ -2999,7 +2977,6 @@ int udp_lib_setsockopt(struct sock *sk, int level, int optname,
return err;
}
-EXPORT_IPV6_MOD(udp_lib_setsockopt);
static int udp_setsockopt(struct sock *sk, int level, int optname, sockptr_t optval,
unsigned int optlen)
@@ -3060,7 +3037,6 @@ int udp_lib_getsockopt(struct sock *sk, int level, int optname,
return -EFAULT;
return 0;
}
-EXPORT_IPV6_MOD(udp_lib_getsockopt);
static int udp_getsockopt(struct sock *sk, int level, int optname,
char __user *optval, int __user *optlen)
@@ -3102,7 +3078,6 @@ __poll_t udp_poll(struct file *file, struct socket *sock, poll_table *wait)
return mask;
}
-EXPORT_IPV6_MOD(udp_poll);
int udp_abort(struct sock *sk, int err)
{
@@ -3125,7 +3100,6 @@ int udp_abort(struct sock *sk, int err)
return 0;
}
-EXPORT_IPV6_MOD_GPL(udp_abort);
struct proto udp_prot = {
.name = "UDP",
@@ -3245,7 +3219,6 @@ void *udp_seq_start(struct seq_file *seq, loff_t *pos)
return *pos ? udp_get_idx(seq, *pos-1) : SEQ_START_TOKEN;
}
-EXPORT_IPV6_MOD(udp_seq_start);
void *udp_seq_next(struct seq_file *seq, void *v, loff_t *pos)
{
@@ -3259,7 +3232,6 @@ void *udp_seq_next(struct seq_file *seq, void *v, loff_t *pos)
++*pos;
return sk;
}
-EXPORT_IPV6_MOD(udp_seq_next);
void udp_seq_stop(struct seq_file *seq, void *v)
{
@@ -3271,7 +3243,6 @@ void udp_seq_stop(struct seq_file *seq, void *v)
if (state->bucket <= udptable->mask)
spin_unlock_bh(&udptable->hash[state->bucket].lock);
}
-EXPORT_IPV6_MOD(udp_seq_stop);
/* ------------------------------------------------------------------------ */
static void udp4_format_sock(struct sock *sp, struct seq_file *f,
diff --git a/net/psp/psp_sock.c b/net/psp/psp_sock.c
index a85b0ed88842..07dc4cf741f3 100644
--- a/net/psp/psp_sock.c
+++ b/net/psp/psp_sock.c
@@ -291,4 +291,3 @@ void psp_reply_set_decrypted(const struct sock *sk, struct sk_buff *skb)
skb->decrypted = 1;
rcu_read_unlock();
}
-EXPORT_IPV6_MOD_GPL(psp_reply_set_decrypted);
--
2.53.0
^ permalink raw reply related [flat|nested] 10+ messages in thread* [PATCH 09/11 net-next v5] bpf: remove ipv6_bpf_stub completely and use direct function calls
[not found] <20260325120928.15848-1-fmancera@suse.de>
2026-03-25 12:08 ` [PATCH 02/11 net-next v5] net: remove EXPORT_IPV6_MOD() and EXPORT_IPV6_MOD_GPL() macros Fernando Fernandez Mancera
2026-03-25 12:08 ` [PATCH 03/11 net-next v5] ipv6: replace IS_BUILTIN(CONFIG_IPV6) with IS_ENABLED(CONFIG_IPV6) Fernando Fernandez Mancera
@ 2026-03-25 12:08 ` Fernando Fernandez Mancera
2026-03-25 19:11 ` Martin KaFai Lau
2 siblings, 1 reply; 10+ messages in thread
From: Fernando Fernandez Mancera @ 2026-03-25 12:08 UTC (permalink / raw)
To: netdev
Cc: Fernando Fernandez Mancera, Ricardo B. Marlière,
Daniel Borkmann, David S. Miller, David Ahern, Eric Dumazet,
Jakub Kicinski, Paolo Abeni, Simon Horman, Alexei Starovoitov,
Andrii Nakryiko, Martin KaFai Lau, Eduard Zingerman, Song Liu,
Yonghong Song, John Fastabend, KP Singh, Stanislav Fomichev,
Hao Luo, Jiri Olsa, Ido Schimmel, Guillaume Nault, linux-kernel,
bpf
As IPv6 is built-in only, the ipv6_bpf_stub can be removed completely.
Convert all ipv6_bpf_stub usage to direct function calls instead. The
fallback functions introduced previously will prevent linkage errors
when CONFIG_IPV6 is disabled.
Signed-off-by: Fernando Fernandez Mancera <fmancera@suse.de>
Tested-by: Ricardo B. Marlière <rbm@suse.com>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
---
include/net/ipv6.h | 2 ++
include/net/ipv6_stubs.h | 21 ---------------
net/core/filter.c | 58 +++++++++++++++++-----------------------
net/core/lwt_bpf.c | 10 ++++---
net/ipv6/af_inet6.c | 13 ++-------
5 files changed, 35 insertions(+), 69 deletions(-)
diff --git a/include/net/ipv6.h b/include/net/ipv6.h
index f99f273341f0..d042afe7a245 100644
--- a/include/net/ipv6.h
+++ b/include/net/ipv6.h
@@ -1149,6 +1149,8 @@ void ipv6_local_rxpmtu(struct sock *sk, struct flowi6 *fl6, u32 mtu);
void inet6_cleanup_sock(struct sock *sk);
void inet6_sock_destruct(struct sock *sk);
int inet6_release(struct socket *sock);
+int __inet6_bind(struct sock *sk, struct sockaddr_unsized *uaddr, int addr_len,
+ u32 flags);
int inet6_bind(struct socket *sock, struct sockaddr_unsized *uaddr, int addr_len);
int inet6_bind_sk(struct sock *sk, struct sockaddr_unsized *uaddr, int addr_len);
int inet6_getname(struct socket *sock, struct sockaddr *uaddr,
diff --git a/include/net/ipv6_stubs.h b/include/net/ipv6_stubs.h
index 907681cecde8..dc708d9eca7a 100644
--- a/include/net/ipv6_stubs.h
+++ b/include/net/ipv6_stubs.h
@@ -77,25 +77,4 @@ struct ipv6_stub {
__u32 mark, struct ipv6_txoptions *opt, int tclass, u32 priority);
};
extern const struct ipv6_stub *ipv6_stub __read_mostly;
-
-/* A stub used by bpf helpers. Similarly ugly as ipv6_stub */
-struct ipv6_bpf_stub {
- int (*inet6_bind)(struct sock *sk, struct sockaddr_unsized *uaddr, int addr_len,
- u32 flags);
- struct sock *(*udp6_lib_lookup)(const struct net *net,
- const struct in6_addr *saddr, __be16 sport,
- const struct in6_addr *daddr, __be16 dport,
- int dif, int sdif, struct sk_buff *skb);
- int (*ipv6_setsockopt)(struct sock *sk, int level, int optname,
- sockptr_t optval, unsigned int optlen);
- int (*ipv6_getsockopt)(struct sock *sk, int level, int optname,
- sockptr_t optval, sockptr_t optlen);
- int (*ipv6_dev_get_saddr)(struct net *net,
- const struct net_device *dst_dev,
- const struct in6_addr *daddr,
- unsigned int prefs,
- struct in6_addr *saddr);
-};
-extern const struct ipv6_bpf_stub *ipv6_bpf_stub __read_mostly;
-
#endif
diff --git a/net/core/filter.c b/net/core/filter.c
index c56821afaa0f..d55525cc5540 100644
--- a/net/core/filter.c
+++ b/net/core/filter.c
@@ -73,7 +73,6 @@
#include <net/seg6.h>
#include <net/seg6_local.h>
#include <net/lwtunnel.h>
-#include <net/ipv6_stubs.h>
#include <net/bpf_sk_storage.h>
#include <net/transp_v6.h>
#include <linux/btf_ids.h>
@@ -2279,7 +2278,7 @@ static int __bpf_redirect_neigh_v6(struct sk_buff *skb, struct net_device *dev,
.saddr = ip6h->saddr,
};
- dst = ipv6_stub->ipv6_dst_lookup_flow(net, NULL, &fl6, NULL);
+ dst = ip6_dst_lookup_flow(net, NULL, &fl6, NULL);
if (IS_ERR(dst))
goto out_drop;
@@ -5577,12 +5576,12 @@ static int sol_ipv6_sockopt(struct sock *sk, int optname,
}
if (getopt)
- return ipv6_bpf_stub->ipv6_getsockopt(sk, SOL_IPV6, optname,
- KERNEL_SOCKPTR(optval),
- KERNEL_SOCKPTR(optlen));
+ return do_ipv6_getsockopt(sk, SOL_IPV6, optname,
+ KERNEL_SOCKPTR(optval),
+ KERNEL_SOCKPTR(optlen));
- return ipv6_bpf_stub->ipv6_setsockopt(sk, SOL_IPV6, optname,
- KERNEL_SOCKPTR(optval), *optlen);
+ return do_ipv6_setsockopt(sk, SOL_IPV6, optname,
+ KERNEL_SOCKPTR(optval), *optlen);
}
static int __bpf_setsockopt(struct sock *sk, int level, int optname,
@@ -5981,9 +5980,6 @@ static const struct bpf_func_proto bpf_sock_ops_cb_flags_set_proto = {
.arg2_type = ARG_ANYTHING,
};
-const struct ipv6_bpf_stub *ipv6_bpf_stub __read_mostly;
-EXPORT_SYMBOL_GPL(ipv6_bpf_stub);
-
BPF_CALL_3(bpf_bind, struct bpf_sock_addr_kern *, ctx, struct sockaddr *, addr,
int, addr_len)
{
@@ -6007,11 +6003,9 @@ BPF_CALL_3(bpf_bind, struct bpf_sock_addr_kern *, ctx, struct sockaddr *, addr,
return err;
if (((struct sockaddr_in6 *)addr)->sin6_port == htons(0))
flags |= BIND_FORCE_ADDRESS_NO_PORT;
- /* ipv6_bpf_stub cannot be NULL, since it's called from
- * bpf_cgroup_inet6_connect hook and ipv6 is already loaded
- */
- return ipv6_bpf_stub->inet6_bind(sk, (struct sockaddr_unsized *)addr,
- addr_len, flags);
+
+ return __inet6_bind(sk, (struct sockaddr_unsized *)addr,
+ addr_len, flags);
#endif /* CONFIG_IPV6 */
}
#endif /* CONFIG_INET */
@@ -6099,9 +6093,9 @@ static int bpf_fib_set_fwd_params(struct bpf_fib_lookup *params, u32 mtu)
static int bpf_ipv4_fib_lookup(struct net *net, struct bpf_fib_lookup *params,
u32 flags, bool check_mtu)
{
+ struct neighbour *neigh = NULL;
struct fib_nh_common *nhc;
struct in_device *in_dev;
- struct neighbour *neigh;
struct net_device *dev;
struct fib_result res;
struct flowi4 fl4;
@@ -6221,8 +6215,8 @@ static int bpf_ipv4_fib_lookup(struct net *net, struct bpf_fib_lookup *params,
if (likely(nhc->nhc_gw_family != AF_INET6))
neigh = __ipv4_neigh_lookup_noref(dev,
(__force u32)params->ipv4_dst);
- else
- neigh = __ipv6_neigh_lookup_noref_stub(dev, params->ipv6_dst);
+ else if (IS_ENABLED(CONFIG_IPV6))
+ neigh = __ipv6_neigh_lookup_noref(dev, params->ipv6_dst);
if (!neigh || !(READ_ONCE(neigh->nud_state) & NUD_VALID))
return BPF_FIB_LKUP_RET_NO_NEIGH;
@@ -6290,12 +6284,11 @@ static int bpf_ipv6_fib_lookup(struct net *net, struct bpf_fib_lookup *params,
params->tbid = 0;
}
- tb = ipv6_stub->fib6_get_table(net, tbid);
+ tb = fib6_get_table(net, tbid);
if (unlikely(!tb))
return BPF_FIB_LKUP_RET_NOT_FWDED;
- err = ipv6_stub->fib6_table_lookup(net, tb, oif, &fl6, &res,
- strict);
+ err = fib6_table_lookup(net, tb, oif, &fl6, &res, strict);
} else {
if (flags & BPF_FIB_LOOKUP_MARK)
fl6.flowi6_mark = params->mark;
@@ -6305,7 +6298,7 @@ static int bpf_ipv6_fib_lookup(struct net *net, struct bpf_fib_lookup *params,
fl6.flowi6_tun_key.tun_id = 0;
fl6.flowi6_uid = sock_net_uid(net, NULL);
- err = ipv6_stub->fib6_lookup(net, oif, &fl6, &res, strict);
+ err = fib6_lookup(net, oif, &fl6, &res, strict);
}
if (unlikely(err || IS_ERR_OR_NULL(res.f6i) ||
@@ -6326,11 +6319,11 @@ static int bpf_ipv6_fib_lookup(struct net *net, struct bpf_fib_lookup *params,
return BPF_FIB_LKUP_RET_NOT_FWDED;
}
- ipv6_stub->fib6_select_path(net, &res, &fl6, fl6.flowi6_oif,
- fl6.flowi6_oif != 0, NULL, strict);
+ fib6_select_path(net, &res, &fl6, fl6.flowi6_oif,
+ fl6.flowi6_oif != 0, NULL, strict);
if (check_mtu) {
- mtu = ipv6_stub->ip6_mtu_from_fib6(&res, dst, src);
+ mtu = ip6_mtu_from_fib6(&res, dst, src);
if (params->tot_len > mtu) {
params->mtu_result = mtu; /* union with tot_len */
return BPF_FIB_LKUP_RET_FRAG_NEEDED;
@@ -6351,9 +6344,7 @@ static int bpf_ipv6_fib_lookup(struct net *net, struct bpf_fib_lookup *params,
if (res.f6i->fib6_prefsrc.plen) {
*src = res.f6i->fib6_prefsrc.addr;
} else {
- err = ipv6_bpf_stub->ipv6_dev_get_saddr(net, dev,
- &fl6.daddr, 0,
- src);
+ err = ipv6_dev_get_saddr(net, dev, &fl6.daddr, 0, src);
if (err)
return BPF_FIB_LKUP_RET_NO_SRC_ADDR;
}
@@ -6365,7 +6356,7 @@ static int bpf_ipv6_fib_lookup(struct net *net, struct bpf_fib_lookup *params,
/* xdp and cls_bpf programs are run in RCU-bh so rcu_read_lock_bh is
* not needed here.
*/
- neigh = __ipv6_neigh_lookup_noref_stub(dev, dst);
+ neigh = __ipv6_neigh_lookup_noref(dev, dst);
if (!neigh || !(READ_ONCE(neigh->nud_state) & NUD_VALID))
return BPF_FIB_LKUP_RET_NO_NEIGH;
memcpy(params->dmac, neigh->ha, ETH_ALEN);
@@ -6900,11 +6891,10 @@ static struct sock *sk_lookup(struct net *net, struct bpf_sock_tuple *tuple,
src6, tuple->ipv6.sport,
dst6, ntohs(tuple->ipv6.dport),
dif, sdif, &refcounted);
- else if (likely(ipv6_bpf_stub))
- sk = ipv6_bpf_stub->udp6_lib_lookup(net,
- src6, tuple->ipv6.sport,
- dst6, tuple->ipv6.dport,
- dif, sdif, NULL);
+ else if (likely(ipv6_mod_enabled()))
+ sk = __udp6_lib_lookup(net, src6, tuple->ipv6.sport,
+ dst6, tuple->ipv6.dport,
+ dif, sdif, NULL);
#endif
}
diff --git a/net/core/lwt_bpf.c b/net/core/lwt_bpf.c
index 9f40be0c3e71..f71ef82a5f3d 100644
--- a/net/core/lwt_bpf.c
+++ b/net/core/lwt_bpf.c
@@ -13,7 +13,6 @@
#include <net/gre.h>
#include <net/ip.h>
#include <net/ip6_route.h>
-#include <net/ipv6_stubs.h>
struct bpf_lwt_prog {
struct bpf_prog *prog;
@@ -103,7 +102,12 @@ static int bpf_lwt_input_reroute(struct sk_buff *skb)
dev_put(dev);
} else if (skb->protocol == htons(ETH_P_IPV6)) {
skb_dst_drop(skb);
- err = ipv6_stub->ipv6_route_input(skb);
+ if (IS_ENABLED(CONFIG_IPV6)) {
+ ip6_route_input(skb);
+ err = skb_dst(skb)->error;
+ } else {
+ err = -EAFNOSUPPORT;
+ }
} else {
err = -EAFNOSUPPORT;
}
@@ -233,7 +237,7 @@ static int bpf_lwt_xmit_reroute(struct sk_buff *skb)
fl6.daddr = iph6->daddr;
fl6.saddr = iph6->saddr;
- dst = ipv6_stub->ipv6_dst_lookup_flow(net, skb->sk, &fl6, NULL);
+ dst = ip6_dst_lookup_flow(net, skb->sk, &fl6, NULL);
if (IS_ERR(dst)) {
err = PTR_ERR(dst);
goto err;
diff --git a/net/ipv6/af_inet6.c b/net/ipv6/af_inet6.c
index bb29b29fdcfb..07ae6ea7743a 100644
--- a/net/ipv6/af_inet6.c
+++ b/net/ipv6/af_inet6.c
@@ -264,8 +264,8 @@ static int inet6_create(struct net *net, struct socket *sock, int protocol,
goto out;
}
-static int __inet6_bind(struct sock *sk, struct sockaddr_unsized *uaddr, int addr_len,
- u32 flags)
+int __inet6_bind(struct sock *sk, struct sockaddr_unsized *uaddr, int addr_len,
+ u32 flags)
{
struct sockaddr_in6 *addr = (struct sockaddr_in6 *)uaddr;
struct inet_sock *inet = inet_sk(sk);
@@ -1032,14 +1032,6 @@ static const struct ipv6_stub ipv6_stub_impl = {
.ip6_xmit = ip6_xmit,
};
-static const struct ipv6_bpf_stub ipv6_bpf_stub_impl = {
- .inet6_bind = __inet6_bind,
- .udp6_lib_lookup = __udp6_lib_lookup,
- .ipv6_setsockopt = do_ipv6_setsockopt,
- .ipv6_getsockopt = do_ipv6_getsockopt,
- .ipv6_dev_get_saddr = ipv6_dev_get_saddr,
-};
-
static int __init inet6_init(void)
{
struct list_head *r;
@@ -1199,7 +1191,6 @@ static int __init inet6_init(void)
/* ensure that ipv6 stubs are visible only after ipv6 is ready */
wmb();
ipv6_stub = &ipv6_stub_impl;
- ipv6_bpf_stub = &ipv6_bpf_stub_impl;
out:
return err;
--
2.53.0
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