Hi Richard,

	Patch against 2.6.0-test4

	This is a first try to fix SMP support on the 3c527 net driver, by 
removing cli/sti and replacing them with proper locking.

	Since the critical section that used cli/save_flags to serialize its 
access had "sleep_on" in it, I added a per-device semaphore to it, and 
used this lock instead. Also, the down/up function doesn't seem to be 
used in interrupt context, so I think it will work.

	Compile fine, but I don't have the hardware to test it.

	Please review this patch and consider applying if it looks good,

	Thanks.

Felipe
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