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authorJulian Wiedmann <[email protected]>2019-03-28 16:39:20 +0100
committerDavid S. Miller <[email protected]>2019-03-28 12:57:23 -0700
commit5c0aebc6db8cf81c5dd888388dcb455beb1a87b8 (patch)
treea0e4cc11564301962f66f9604d1fe8446f6ab463 /tools/perf/scripts/python/event_analyzing_sample.py
parentd0c748256611f8612728bcbf9933eb103c077763 (diff)
s390/qeth: remove locking for RX modeset cache
The L2 and L3 .ndo_set_rx_mode callbacks maintain an address cache to decide which addresses have changed since the last modeset. When the card is set offline, qeth_l?_stop_card() drains this cache. This happens only after 1) the net_device has been detached, and 2) any pending RX modeset has completed. Consequently we can access the cache lock-free. Signed-off-by: Julian Wiedmann <[email protected]> Signed-off-by: David S. Miller <[email protected]>
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