epic100: allow nesting of ethtool_ops begin() and complete()

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Unlike most networking drivers using begin() and complete() ethtool_ops
callbacks to resume a device which is down and suspend it again when done,
epic100 does not use standard refcounted infrastructure but sets device
sleep state directly.

With the introduction of netlink ethtool interface, we may have nested
begin-complete blocks so that inner complete() would put the device back to
sleep for the rest of the outer block.

To avoid rewriting an old and not very actively developed driver, just add
a nesting counter and only perform resume and suspend on the outermost
level.

Signed-off-by: Michal Kubecek <mkubecek@suse.cz>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Michal Kubecek 2020-01-06 07:39:41 +01:00 • committed by David S. Miller

parent 71f711a4f1

commit 4ac0ac847f

1 changed files with 5 additions and 2 deletions

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drivers/net/ethernet/smsc/epic100.c

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