Vladimir Oltean 22d842e3ef
net: mscc: ocelot: turn stats_lock into a spinlock ...
ocelot_get_stats64() currently runs unlocked and therefore may collide
with ocelot_port_update_stats() which indirectly accesses the same
counters. However, ocelot_get_stats64() runs in atomic context, and we
cannot simply take the sleepable ocelot->stats_lock mutex. We need to
convert it to an atomic spinlock first. Do that as a preparatory change.
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com >
Signed-off-by: Jakub Kicinski <kuba@kernel.org >
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