Where did you get this requirement from? That isn't what
Documentation/IO-mapping.txt appears to indicate.
It gives a prototype of
bus_addr = virt_to_bus(virt_addr);
and even the examples don't seem to indicate that it is anything other than
an address that is passed in.
When you say you must use virt_to_bus(page), I'm guessing you mean that the
address must be page aligned.
-Bret
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Bret Indrelee, Engineer
SBS Technologies, Inc., Connectivity Products
1284 Corporate Center Drive, St. Paul MN 55121
Direct: (651) 905-4731
Main: (651) 905-4700 Fax: (651) 905-4701
E-mail: bindrelee@sbs-cp.com http://www.sbs.com
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