Revert "net: dsa: stop updating master MTU from master.c"
This reverts commit a1ff94c2. Switch drivers that don't implement ->port_change_mtu() will cause the DSA master to remain with an MTU of 1500, since we've deleted the other code path. In turn, this causes a regression for those systems, where MTU-sized traffic can no longer be terminated. Revert the change taking into account the fact that rtnl_lock() is now taken top-level from the callers of dsa_master_setup() and dsa_master_teardown(). Also add a comment in order for it to be absolutely clear why it is still needed. Fixes: a1ff94c2 ("net: dsa: stop updating master MTU from master.c") Reported-by:Luiz Angelo Daros de Luca <luizluca@gmail.com> Signed-off-by:
Vladimir Oltean <vladimir.oltean@nxp.com> Tested-by:
Luiz Angelo Daros de Luca <luizluca@gmail.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
parent
1effe8ca
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