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

[Jan Beulich]

>>> 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

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/