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[ETHTOOL] Provide default behaviors for a few ethtool sub-ioctls

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For the operations
	get-tx-csum
	get-sg
	get-tso
	get-ufo
the default ethtool_op_xxx behavior is fine for all drivers, so we
permit op==NULL to imply the default behavior.

This provides a more uniform behavior across all drivers, eliminating
ethtool(8) "ioctl not supported" errors on older drivers that had
not been updated for the latest sub-ioctls.

The ethtool_op_xxx() functions are left exported, in case anyone
wishes to call them directly from a driver-private implementation --
a not-uncommon case.  Should an ethtool_op_xxx() helper remain unused
for a while, except by net/core/ethtool.c, we can un-export it at a
later date.

[ Resolved conflicts with set/get value ethtool patch... -DaveM ]

Signed-off-by: Jeff Garzik <jeff@garzik.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jeff Garzik
2007-09-15 14:41:06 -07:00
committed by David S. Miller
parent 09f75cd7bf
commit 88d3aafdae
38 changed files with 13 additions and 101 deletions
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1
drivers/net/loopback.c
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@ -192,7 +192,6 @@ static u32 always_on(struct net_device *dev)
static const struct ethtool_ops loopback_ethtool_ops = {
.get_link = always_on,
.get_tso = ethtool_op_get_tso,
.set_tso = ethtool_op_set_tso,
.get_tx_csum = always_on,
.get_sg = always_on,