Re: [PATCH] reduce export symbol CRC table size on 64-bit archs

["Jan Beulich" <JBeulich@xxxxxxxxxx>]

>>> Michal Marek <mmarek@xxxxxxx> 13.07.09 10:11 >>>
>Jan Beulich napsal(a):
>> Actually I meanwhile think that module-init-tools can easily detect the changed
>> layout without any further kernel side adjustments: Since it is known that a
>> CRC always is a 32-bit value, simply checking whether the so-far-used 64-bit
>> value has more than 32 significant bits should suffice: If so, the new layout
>> is being used (with the symbol name starting at offset 4), else the old one is
>> in effect (name at offset 8). This ought to be a pretty trivial change to that
>> code.
>
>But old module-init-tools will continue reading garbage in this case.

And would you think returning nothing is significantly better than returning
garbage?

Jan

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