net: make netdev netlink ops hold netdev_lock()

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In prep for dropping rtnl_lock, start locking netdev->lock in netlink
genl ops. We need to be using netdev->up instead of flags & IFF_UP.

We can remove the RCU lock protection for the NAPI since NAPI list
is protected by netdev->lock already.

Reviewed-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Link: https://patch.msgid.link/20250115035319.559603-8-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

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This commit is contained in:

Jakub Kicinski 2025-01-14 19:53:15 -08:00

parent 413f0271f3

commit eeeec1d4c6

3 changed files with 27 additions and 23 deletions

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3

net/core/dev.c

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1

net/core/dev.h

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46

net/core/netdev-genl.c

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