bonding: use rcu_dereference_rtnl when get bonding active slave

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bond_option_active_slave_get_rcu() should not be used in rtnl_mutex as it
use rcu_dereference(). Replace to rcu_dereference_rtnl() so we also can use
this function in rtnl protected context.

With this update, we can rmeove the rcu_read_lock/unlock in
bonding .ndo_eth_ioctl and .get_ts_info.

Reported-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Fixes: 94dd016ae5 ("bond: pass get_ts_info and SIOC[SG]HWTSTAMP ioctl to active device")
Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Hangbin Liu 2022-01-21 16:25:18 +08:00 • committed by David S. Miller

parent 2148927e6e

commit aa6034678e

2 changed files with 1 additions and 5 deletions

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4

drivers/net/bonding/bond_main.c

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2

include/net/bonding.h

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