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linux/net/core
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Jakub Kicinski 97f51bf91b net: ethtool: make dev->hwprov ops-protected 
dev->hwprov tracks the active hwtstamp provider for the device.
Make it ops protected (instance lock if the netdev driver opts
into holding instance lock around callbacks, otherwise rtnl_lock).

hwprov is written and read in:
 - drivers/net/phy/phy_device.c
    phydev and ops protection don't currently mix, add a comment
 - net/ethtool/
    as of now holds both rtnl lock and ops lock, this one will
    soon only hold one lock or the other

read in:
 - net/core/dev_ioctl.c
    holds both rtnl lock and ops lock
 - net/core/timestamping.c
    RCU reader

The new netdev_ops_lock_dereference() helper does not have
"compat" in the name. The name would be quite long and I think
in this case it should be obvious that we need _a_ lock.
netdev_lock_dereference() already exists and means dev->lock
is always expected.

Reviewed-by: Eric Dumazet <edumazet@google.com>
Acked-by: Stanislav Fomichev <sdf@fomichev.me>
Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Link: https://patch.msgid.link/20260605002912.3456868-4-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-06-09 10:13:04 -07:00
..
bpf_sk_storage.c bpf: Fix sk_local_storage diag dumping uninitialized special fields 2026-04-24 11:21:34 -07:00
datagram.c net: datagram: introduce datagram_poll_queue for custom receive queues 2025-10-23 15:46:04 +02:00
dev_addr_lists_test.c net: cache snapshot entries for ndo_set_rx_mode_async 2026-04-21 12:50:13 +02:00
dev_addr_lists.c net: rename netdev_ops_assert_locked() 2026-06-04 14:04:55 -07:00
dev_api.c net: introduce ndo_set_rx_mode_async and netdev_rx_mode_work 2026-04-21 12:50:03 +02:00
dev_ioctl.c net: ethtool: make dev->hwprov ops-protected 2026-06-09 10:13:04 -07:00
dev.c net: rename netdev_ops_assert_locked() 2026-06-04 14:04:55 -07:00
dev.h rtnetlink: use dev_isalive() in rtnl_getlink() 2026-06-04 18:16:14 -07:00
devmem.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2026-05-21 15:09:02 -07:00
devmem.h net: devmem: support TX over NETMEM_TX_NO_DMA devices 2026-05-18 18:49:06 -07:00
drop_monitor.c net: constify sk_skb_reason_drop() sock parameter 2026-05-12 18:31:11 -07:00
dst_cache.c net: dst: annotate data-races around dst->obsolete 2025-07-02 14:32:29 -07:00
dst.c treewide: Replace kmalloc with kmalloc_obj for non-scalar types 2026-02-21 01:02:28 -08:00
failover.c net: net_failover: Fix the deadlock in slave register 2026-05-13 19:01:03 -07:00
fib_notifier.c net: Add SPDX ids to some source files 2026-03-09 18:32:45 -07:00
fib_rules.c
filter.c bpf: sockmap: fix tail fragment offset in bpf_msg_push_data 2026-05-29 12:38:35 -07:00
flow_dissector.c flow_dissector: do not dissect PPPoE PFC frames 2026-04-20 11:35:16 -07:00
flow_offload.c Convert more 'alloc_obj' cases to default GFP_KERNEL arguments 2026-02-21 20:03:00 -08:00
gen_estimator.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
gen_stats.c net/sched: add const qualifiers to gnet_stats helpers 2026-05-11 18:28:08 -07:00
gro_cells.c treewide: Replace kmalloc with kmalloc_obj for non-scalar types 2026-02-21 01:02:28 -08:00
gro.c net: gro: don't merge zcopy skbs 2026-05-21 08:21:33 -07:00
gso.c
hotdata.c net: remove EXPORT_IPV6_MOD() and EXPORT_IPV6_MOD_GPL() macros 2026-03-29 11:21:22 -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: rename netdev_ops_assert_locked() 2026-06-04 14:04:55 -07:00
lock_debug.c net: document NETDEV_CHANGENAME as ops locked 2026-06-04 14:04:55 -07:00
lwt_bpf.c bpf: remove ipv6_bpf_stub completely and use direct function calls 2026-03-29 11:21:24 -07:00
lwtunnel.c inet: Remove rtnl_is_held arg of lwtunnel_valid_encap_type(_attr)?(). 2025-05-20 19:18:24 -07:00
Makefile net: get rid of net/core/request_sock.c 2026-02-05 09:23:05 -08:00
mp_dmabuf_devmem.h
neighbour.c neighbour: remove obsolete EXPORT_SYMBOL() 2026-06-08 15:59:17 -07:00
net_namespace.c Networking changes for 7.1. 2026-04-14 18:36:10 -07:00
net_test.c
net-procfs.c net: add proper RCU protection to /proc/net/ptype 2026-02-03 19:20:30 -08:00
net-sysfs.c rtnetlink: use dev_isalive() in rtnl_getlink() 2026-06-04 18:16:14 -07:00
net-sysfs.h net: add skb_defer_disable_key static key 2026-03-12 19:25:33 -07:00
net-traces.c
netclassid_cgroup.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
netdev_config.c net: add queue config validation callback 2026-01-23 11:49:02 -08:00
netdev_queues.c net: rename netdev_ops_assert_locked() 2026-06-04 14:04:55 -07:00
netdev_rx_queue.c net: Rename ifq_idx to rxq_idx in netif_mp_* helpers 2026-04-12 09:12:07 -07:00
netdev-genl-gen.c net: devmem: allow bind-rx from non-init user namespaces 2026-06-05 18:10:31 -07:00
netdev-genl-gen.h net: Add queue-create operation 2026-04-09 18:21:45 -07:00
netdev-genl.c net: devmem: support TX over NETMEM_TX_NO_DMA devices 2026-05-18 18:49:06 -07:00
netevent.c
netmem_priv.h Revert "mm: introduce a new page type for page pool in page type" 2026-05-21 19:06:13 -07:00
netpoll.c netconsole: do not dequeue pooled skbs that cannot satisfy len 2026-06-09 12:42:20 +02:00
netprio_cgroup.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
of_net.c
page_pool_priv.h
page_pool_user.c net: make page_pool_get_stats() void 2026-05-28 18:10:03 -07:00
page_pool.c net: make page_pool_get_stats() void 2026-05-28 18:10:03 -07:00
pktgen.c kernel.h: drop hex.h and update all hex.h users 2026-01-20 19:44:19 -08:00
ptp_classifier.c
rtnetlink.c rtnetlink: use dev_isalive() in rtnl_getlink() 2026-06-04 18:16:14 -07:00
scm.c net: use ktime_t in struct scm_timestamping_internal 2026-03-04 17:53:34 -08:00
secure_seq.c tcp: secure_seq: add back ports to TS offset 2026-03-04 17:44:35 -08:00
selftests.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00
skb_fault_injection.c
skbuff.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2026-06-01 13:42:12 +02:00
skmsg.c bpf, skmsg: fix verdict sk_data_ready racing with ktls rx 2026-05-20 17:21:21 -07:00
sock_diag.c net: Add SPDX ids to some source files 2026-03-09 18:32:45 -07:00
sock_map.c sockmap: Fix sk_psock_drop() race vs sock_map_{unhash,close,destroy}(). 2026-04-23 18:24:02 -07:00
sock_reuseport.c treewide: Replace kmalloc with kmalloc_obj for non-scalar types 2026-02-21 01:02:28 -08:00
sock.c net: ensure SCM_TXTIME delivery time is no older than system boot 2026-06-08 16:00:05 -07:00
stream.c net: stream: add description for sk_stream_write_space() 2025-07-18 16:57:21 -07:00
sysctl_net_core.c net: add skb_defer_disable_key static key 2026-03-12 19:25:33 -07:00
timestamping.c
tso.c net: tso: Introduce tso_dma_map and helpers 2026-04-12 10:54:31 -07:00
utils.c kernel.h: drop hex.h and update all hex.h users 2026-01-20 19:44:19 -08:00
xdp.c Convert 'alloc_obj' family to use the new default GFP_KERNEL argument 2026-02-21 17:09:51 -08:00