[PATCH batadv v2 0/7] batman-adv: replace non-atomic fields with (READ|WRITE)_ONCE

Many fields in the batman-adv datastructures are only accessed as plain
loads/stores and do not require full atomic_t semantics. Convert these
fields to native integer types and replace their users with
READ_ONCE()/WRITE_ONCE() to avoid load/store tearing.

This was noticed while searching for other atomic_t code which
(incorrectly) does things like:

    if (atomic_read(foo)) {
        do_important_mutual_exlusive_thing();
        atomic_set(foo, x);
    }

Signed-off-by: Sven Eckelmann <[email protected]>
---
Changes in v2:
- rebase
- Link to v1: https://patch.msgid.link/[email protected]

---
Sven Eckelmann (7):
      batman-adv: replace non-atomic meshif config fields with (READ|WRITE)_ONCE
      batman-adv: replace non-atomic hardif config fields with (READ|WRITE)_ONCE
      batman-adv: replace non-atomic vlan config fields with (READ|WRITE)_ONCE
      batman-adv: replace non-atomic mesh state with (READ|WRITE)_ONCE
      batman-adv: replace non-atomic packet_size_max with (READ|WRITE)_ONCE
      batman-adv: replace non-atomic last_ttvn with (READ|WRITE)_ONCE
      batman-adv: replace non-atomic last_acked with (READ|WRITE)_ONCE

 net/batman-adv/bat_iv_ogm.c            | 28 +++++++------
 net/batman-adv/bat_v.c                 | 10 ++---
 net/batman-adv/bat_v_elp.c             |  9 ++--
 net/batman-adv/bat_v_ogm.c             | 13 +++---
 net/batman-adv/bridge_loop_avoidance.c | 14 +++----
 net/batman-adv/distributed-arp-table.c | 16 +++----
 net/batman-adv/gateway_client.c        |  6 +--
 net/batman-adv/gateway_common.c        | 14 +++----
 net/batman-adv/hard-interface.c        | 15 ++++---
 net/batman-adv/log.h                   |  2 +-
 net/batman-adv/main.c                  | 22 +++++-----
 net/batman-adv/mesh-interface.c        | 38 ++++++++---------
 net/batman-adv/multicast.c             |  4 +-
 net/batman-adv/netlink.c               | 77 +++++++++++++++++-----------------
 net/batman-adv/originator.c            |  3 +-
 net/batman-adv/routing.c               |  6 +--
 net/batman-adv/send.c                  |  6 +--
 net/batman-adv/tp_meter.c              | 28 ++++++-------
 net/batman-adv/translation-table.c     | 24 +++++------
 net/batman-adv/types.h                 | 68 +++++++++++++++---------------
 20 files changed, 204 insertions(+), 199 deletions(-)
---
base-commit: ff182fc0c666754e3f35f7b63c9ccf0dff239e52
change-id: 20260512-atomic-to-write-once-9801e8d6b58e

Best regards,
--  
Sven Eckelmann <[email protected]>