s390/qeth: remove locking for RX modeset cache

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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 <jwi@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Julian Wiedmann 2019-03-28 16:39:20 +01:00 • committed by David S. Miller

parent d0c7482566

commit 5c0aebc6db

4 changed files with 0 additions and 14 deletions

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1

drivers/s390/net/qeth_core.h

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1

drivers/s390/net/qeth_core_main.c

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6

drivers/s390/net/qeth_l2_main.c

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6

drivers/s390/net/qeth_l3_main.c

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