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net: hsr: remove synchronize_rcu() from hsr_add_port()

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A synchronize_rcu() was added by mistake in commit
c5a7591172 ("net/hsr: Use list_head (and rcu) instead
of array for slave devices.")

RCU does not mandate to observe a grace period after
list_add_tail_rcu().

Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20250107144701.503884-1-edumazet@google.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
This commit is contained in:
Eric Dumazet 2025-01-07 14:47:01 +00:00 committed by Paolo Abeni
parent 2170a1f091
commit a3b3d2dc38
1 changed files with 0 additions and 1 deletions
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net/hsr/hsr_slave.c
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@ -204,7 +204,6 @@ int hsr_add_port(struct hsr_priv *hsr, struct net_device *dev,
}
list_add_tail_rcu(&port->port_list, &hsr->ports);
synchronize_rcu();
master = hsr_port_get_hsr(hsr, HSR_PT_MASTER);
netdev_update_features(master->dev);