netdev - [PATCH v4 net 0/2] ipvlan: addrs

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Message-ID: <20251230140333.2088391-1-skorodumov.dmitry@huawei.com>
Date: Tue, 30 Dec 2025 17:03:22 +0300
From: Dmitry Skorodumov <dskr99@...il.com>
To: netdev@...r.kernel.org
Cc: Dmitry Skorodumov <skorodumov.dmitry@...wei.com>
Subject: [PATCH v4 net 0/2] ipvlan: addrs_lock made per port

First patch fixes a rather minor issues that sometimes
ipvlan-addrs are modified without lock (because
for IPv6 addr can be sometimes added without RTNL)

diff from v3:
Main patch is not changed
Patch 2 (selftest) changed:
  - Remove unneeded modprobe
  - Number of threads is 8, if KSFT_MACHINE_SLOW==yes.
    It is needed, since on debug-build test may take more than 15 minutes.
  - Now veth is created in own namespace
  - Added comment about why test adds/removes random ip

diff from v2:
- Added a small self-test
- added early return in ipvlan_find_addr()
- the iterations over ipvlans in ipvlan_addr_busy()
must be protected by RCU
- Added simple self-test. I haven't invented anything
more sophisticated that this.

Dmitry Skorodumov (2):
  ipvlan: Make the addrs_lock be per port
  selftests: net: simple selftest for ipvtap

 drivers/net/ipvlan/ipvlan.h                |   2 +-
 drivers/net/ipvlan/ipvlan_core.c           |  16 +-
 drivers/net/ipvlan/ipvlan_main.c           |  49 +++---
 tools/testing/selftests/net/Makefile       |   1 +
 tools/testing/selftests/net/config         |   2 +
 tools/testing/selftests/net/ipvtap_test.sh | 167 +++++++++++++++++++++
 6 files changed, 207 insertions(+), 30 deletions(-)
 create mode 100755 tools/testing/selftests/net/ipvtap_test.sh

-- 
2.43.0