> The only 'error' cases I've encountered so far is a read of all zeroes (and a
> halting the machine once you've read beyond a certain point) or a read of
> 0xff throughout the entire area. So that approach would work for both of them.

I should add that I'd tested the previous patch and this patch. I'll retest 
once v3 is available.

I have a card that repeats the vpd data every 4k for all 32k. The patch as it 
stands truncates that to just the valid data and lspci -vvvv shows the vpd data 
correctly.
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