I noticed that the multicast hash calculations assumed little endian
byte ordering in the winbond-840 driver, and it seems that several other
drivers are also affected:

8139too, epic100, fealnx, pci-skeleton, sis900, starfile, sundance,
via-rhine, yellowfin
perhaps drivers/net/pcmcia/xircom_tulip_cb

I've attached an untested patch.
It's possible that the nic performs another byte swap if configured for
big endian support, but I've never seen a nic that performs byte swaps
on register writes, only on memory reads.

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--
	Manfred