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Revision f49db805


Added by Isaku Yamahata almost 12 years ago

pci: add helper functions to check ranges overlap.

add helper function to check ranges overlap suggested by
Michael S. Tsirkin <>.
His original suggestion was to use [first, last], however I chosen
to use offset, length pair, i.e. [offset, offset + length)
because pci configuration space related functions all uses offset and length
pair, so it helps to avoid to type constant twice.

Cc: Michael S. Tsirkin <>
Signed-off-by: Isaku Yamahata <>
Signed-off-by: Anthony Liguori <>


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