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mirror of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git synced 2025-09-04 20:19:47 +08:00
linux/net/core
Eric Dumazet 88fe14253e net: dst: add four helpers to annotate data-races around dst->dev
dst->dev is read locklessly in many contexts,
and written in dst_dev_put().

Fixing all the races is going to need many changes.

We probably will have to add full RCU protection.

Add three helpers to ease this painful process.

static inline struct net_device *dst_dev(const struct dst_entry *dst)
{
       return READ_ONCE(dst->dev);
}

static inline struct net_device *skb_dst_dev(const struct sk_buff *skb)
{
       return dst_dev(skb_dst(skb));
}

static inline struct net *skb_dst_dev_net(const struct sk_buff *skb)
{
       return dev_net(skb_dst_dev(skb));
}

static inline struct net *skb_dst_dev_net_rcu(const struct sk_buff *skb)
{
       return dev_net_rcu(skb_dst_dev(skb));
}

Fixes: 4a6ce2b6f2 ("net: introduce a new function dst_dev_put()")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Kuniyuki Iwashima <kuniyu@google.com>
Link: https://patch.msgid.link/20250630121934.3399505-7-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-07-02 14:32:30 -07:00
..
bpf_sk_storage.c bpf: Remove unnecessary BTF lookups in bpf_sk_storage_tracing_allowed 2025-01-29 08:51:51 -08:00
datagram.c net: devmem: support single IOV with sendmsg 2025-05-26 10:00:48 +01:00
dev_addr_lists_test.c net: dev_addr_lists: move locking out of init/exit in kunit 2024-04-15 10:26:35 +01:00
dev_addr_lists.c net: ti: icssg-prueth: Add Multicast Filtering support for VLAN in MAC mode 2025-01-14 12:17:27 +01:00
dev_api.c net: core: Convert dev_set_mac_address_user() to use struct sockaddr_storage 2025-05-27 08:25:43 +02:00
dev_ioctl.c net: core: Convert dev_set_mac_address_user() to use struct sockaddr_storage 2025-05-27 08:25:43 +02:00
dev.c Merge branch 'ref_tracker-add-ability-to-register-a-debugfs-file-for-a-ref_tracker_dir' 2025-06-19 17:02:07 -07:00
dev.h netdev: add "ops compat locking" helpers 2025-04-09 17:01:51 -07:00
devmem.c net: devmem: move list_add to net_devmem_bind_dmabuf. 2025-05-27 19:19:35 -07:00
devmem.h net: Fix net_devmem_bind_dmabuf for non-devmem configs 2025-05-30 19:23:36 -07:00
drop_monitor.c treewide, timers: Rename from_timer() to timer_container_of() 2025-06-08 09:07:37 +02:00
dst_cache.c net: dst: annotate data-races around dst->obsolete 2025-07-02 14:32:29 -07:00
dst.c net: dst: add four helpers to annotate data-races around dst->dev 2025-07-02 14:32:30 -07:00
failover.c
fib_notifier.c net: do not acquire rtnl in fib_seq_sum() 2024-10-11 15:35:05 -07:00
fib_rules.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2025-04-17 12:26:50 -07:00
filter.c net: clear the dst when changing skb protocol 2025-06-11 17:02:29 -07:00
flow_dissector.c net: remove '__' from __skb_flow_get_ports() 2025-02-24 14:27:53 -08:00
flow_offload.c tc: flower: Enable offload support IPSEC SPI field. 2023-08-02 10:09:32 +01:00
gen_estimator.c treewide, timers: Rename from_timer() to timer_container_of() 2025-06-08 09:07:37 +02:00
gen_stats.c
gro_cells.c net: move netdev_max_backlog to net_hotdata 2024-03-07 21:12:42 -08:00
gro.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2025-02-27 10:20:58 -08:00
gso.c net: introduce struct net_hotdata 2024-03-07 21:12:41 -08:00
hotdata.c tcp: move tcp_memory_allocated into net_aligned_data 2025-07-02 14:22:02 -07:00
hwbm.c
ieee8021q_helpers.c net: ieee8021q: fix insufficient table-size assertion 2025-07-01 12:55:49 +02:00
link_watch.c net: hold instance lock during NETDEV_CHANGE 2025-04-07 11:13:39 -07:00
lock_debug.c netdev: fix the locking for netdev notifications 2025-04-17 18:55:14 -07:00
lwt_bpf.c bpf: lwtunnel: Prepare bpf_lwt_xmit_reroute() to future .flowi4_tos conversion. 2024-11-14 19:07:49 -08:00
lwtunnel.c inet: Remove rtnl_is_held arg of lwtunnel_valid_encap_type(_attr)?(). 2025-05-20 19:18:24 -07:00
Makefile net: rename rtnl_net_debug to lock_debug 2025-04-03 15:32:08 -07:00
mp_dmabuf_devmem.h memory-provider: dmabuf devmem memory provider 2024-09-11 20:44:31 -07:00
neighbour.c net: dst: annotate data-races around dst->obsolete 2025-07-02 14:32:29 -07:00
net_namespace.c net: move net_cookie into net_aligned_data 2025-07-02 14:22:02 -07:00
net_test.c pfcp: always set pfcp metadata 2024-04-01 10:49:28 +01:00
net-procfs.c net: add data-race annotations in softnet_seq_show() 2025-04-08 12:30:55 -07:00
net-sysfs.c net: sysfs: Implement is_visible for phys_(port_id, port_name, switch_id) 2025-06-14 11:26:59 -07:00
net-sysfs.h
net-traces.c move asm/unaligned.h to linux/unaligned.h 2024-10-02 17:23:23 -04:00
netclassid_cgroup.c net, bpf: Fix RCU usage in task_cls_state() for BPF programs 2025-06-11 21:30:29 +02:00
netdev_rx_queue.c net: Reoder rxq_idx check in __net_mp_open_rxq() 2025-06-25 16:53:51 -07:00
netdev-genl-gen.c net: devmem: TCP tx netlink api 2025-05-13 11:12:48 +02:00
netdev-genl-gen.h net: devmem: TCP tx netlink api 2025-05-13 11:12:48 +02:00
netdev-genl.c net: devmem: move list_add to net_devmem_bind_dmabuf. 2025-05-27 19:19:35 -07:00
netevent.c
netmem_priv.h page_pool: Track DMA-mapped pages and unmap them when destroying the pool 2025-04-14 16:30:29 -07:00
netpoll.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2025-06-26 10:40:50 -07:00
netprio_cgroup.c
of_net.c net: Explicitly include correct DT includes 2023-07-27 20:33:16 -07:00
page_pool_priv.h net: page_pool: don't try to stash the napi id 2025-01-27 14:37:41 -08:00
page_pool_user.c net: use napi_id_valid helper 2025-02-17 16:43:04 -08:00
page_pool.c page_pool: Fix use-after-free in page_pool_recycle_in_ring 2025-05-28 19:19:36 -07:00
pktgen.c net: pktgen: fix code style (WARNING: Prefer strscpy over strcpy) 2025-04-17 13:02:41 +02:00
ptp_classifier.c
request_sock.c tcp: make sure init the accept_queue's spinlocks once 2024-01-19 21:13:25 -08:00
rtnetlink.c net: dst: annotate data-races around dst->lastuse 2025-07-02 14:32:29 -07:00
scm.c af_unix: Move SOCK_PASS{CRED,PIDFD,SEC} to struct sock. 2025-05-23 10:24:18 +01:00
secure_seq.c net: Retire DCCP socket. 2025-04-11 18:58:10 -07:00
selftests.c net: selftests: fix TCP packet checksum 2025-06-26 10:50:49 +02:00
skb_fault_injection.c net: Implement fault injection forcing skb reallocation 2024-11-12 12:05:33 +01:00
skbuff.c net: netmem: fix skb_ensure_writable with unreadable skbs 2025-06-17 15:48:20 -07:00
skmsg.c bpf, sockmap: Fix psock incorrectly pointing to sk 2025-06-10 18:16:15 +02:00
sock_destructor.h
sock_diag.c net: Retire DCCP socket. 2025-04-11 18:58:10 -07:00
sock_map.c BPF fixes: 2025-02-20 15:37:17 -08:00
sock_reuseport.c net: core: annotate socks of struct sock_reuseport with __counted_by 2024-08-02 17:16:59 -07:00
sock.c net: dst: add four helpers to annotate data-races around dst->dev 2025-07-02 14:32:30 -07:00
stream.c net: Return error from sk_stream_wait_connect() if sk_wait_event() fails 2023-12-15 10:48:51 +00:00
sysctl_net_core.c net: rps: remove kfree_rcu_mightsleep() use 2025-04-08 12:30:55 -07:00
timestamping.c net: Add the possibility to support a selected hwtstamp in netdevice 2024-12-16 12:51:40 +00:00
tso.c move asm/unaligned.h to linux/unaligned.h 2024-10-02 17:23:23 -04:00
utils.c net: Fix checksum update for ILA adj-transport 2025-05-30 19:53:51 -07:00
xdp.c xsk: add missing virtual address conversion for page 2025-05-27 11:46:47 +02:00