Re: [PATCH] check mmap range in /proc/bus/pci too

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From: Jesse Barnes <jbarnes@xxxxxxxxxxxxxxxx>
Date: Thu, 23 Oct 2008 15:55:16 -0700

> /proc/bus/pci allows you to mmap resource ranges too, so we should probably be
> checking to make sure the mapping is somewhat valid.
> 
> My main concern with this patch is that existing userland may be taking
> advantage of the lax checking to map non-resource ranges, but we can always
> back it out if that turns out to be the case.  Anyway, comments & review
> appreciated as usual.

Thanks for doing this, after this is in I can finally remove the checks
in the sparc PCI mmap code.

I think this change should be safe wrt. the previous lax checking.

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