On 01/07/2007 09:59 AM, Jeremy Fitzhardinge wrote:

quoted text
> Rene Herman wrote:

quoted text
>> In your opinion, is the attached (versus 2.6.20-rc3) better? This
>> uses probe_kernel_address() for all accesses. Or rather, an
>> expanded version thereof. The set_fs() and
>> pagefault_{disable,enable} calls are only done once in
>> probe_roms().
> 
> I don't think this is worthwhile.  Its hardly a performance-critical 
> piece of code, and I think its better to use the straightforward 
> interface rather than complicating it for some nominal extra
> efficiency.

How is it for efficiency? I thought it was for correctness. romsignature 
is using probe_kernel_adress() while all other accesses to the ROMs 
there aren't.

If nothing else, anyone reading that code is likely to ask himself the 
very same question -- why the one, and not the others.

Rene.

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