96980ff7c2
To support SPI-controlled switches in the future, access to SYS_STAT_CFG_STAT_VIEW needs to be done outside of any spinlock protected region, but it still needs to be serialized (by a mutex). Split the ocelot->stats_lock spinlock into a mutex that serializes indirect access to hardware registers (ocelot->stat_view_lock) and a spinlock that serializes access to the u64 ocelot->stats array. Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> Signed-off-by: David S. Miller <davem@davemloft.net>