linux-kernel - [PATCH net-next 0/2] net: bring back dev_addr

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Message-ID: <20250311084507.3978048-1-sdf@fomichev.me>
Date: Tue, 11 Mar 2025 01:45:05 -0700
From: Stanislav Fomichev <sdf@...ichev.me>
To: netdev@...r.kernel.org
Cc: davem@...emloft.net,
	edumazet@...gle.com,
	kuba@...nel.org,
	pabeni@...hat.com,
	linux-kernel@...r.kernel.org,
	willemdebruijn.kernel@...il.com,
	jasowang@...hat.com,
	andrew+netdev@...n.ch,
	horms@...nel.org,
	sdf@...ichev.me,
	jdamato@...tly.com,
	kory.maincent@...tlin.com,
	atenart@...nel.org,
	kuniyu@...zon.com
Subject: [PATCH net-next 0/2] net: bring back dev_addr_sem

Kohei reports an issue with dev_addr_sem conversion to netdev instance
lock in [0]. Based on the discussion, switching to netdev instance
lock to protect the address might not work for the devices that
are not using netdev ops lock.
Bring dev_addr_sem instance lock back but fix the ordering.

0: https://lore.kernel.org/netdev/20250308203835.60633-2-enjuk@amazon.com

Stanislav Fomichev (2):
  Revert "net: replace dev_addr_sem with netdev instance lock"
  net: reorder dev_addr_sem lock

 drivers/net/tap.c         |  2 +-
 drivers/net/tun.c         |  2 +-
 include/linux/netdevice.h |  4 +++-
 net/core/dev.c            | 41 +++++++++++++--------------------------
 net/core/dev.h            |  3 ++-
 net/core/dev_api.c        | 19 ++++++++++++++++--
 net/core/dev_ioctl.c      |  2 +-
 net/core/net-sysfs.c      |  7 +++++--
 net/core/rtnetlink.c      | 17 +++++++++++-----
 9 files changed, 56 insertions(+), 41 deletions(-)

-- 
2.48.1