Re: [PATCH net] net: dsa: hold rtnl_lock in dsa_switch_setup_tag_protocol

Hello:

This patch was applied to netdev/net.git (master)
by David S. Miller [off-list ref]:

On Sat,  9 Oct 2021 15:26:07 +0300 you wrote:

It was a documented fact that ds->ops->change_tag_protocol() offered
rtnetlink mutex protection to the switch driver, since there was an
ASSERT_RTNL right before the call in dsa_switch_change_tag_proto()
(initiated from sysfs).

The blamed commit introduced another call path for
ds->ops->change_tag_protocol() which does not hold the rtnl_mutex.
This is:

[...]

Here is the summary with links:
  - [net] net: dsa: hold rtnl_lock in dsa_switch_setup_tag_protocol
    https://git.kernel.org/netdev/net/c/1951b3f19cfe

You are awesome, thank you!
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