Messages in this thread | | | Date | Mon, 13 Jul 2009 09:44:46 +0100 | From | "Jan Beulich" <> | Subject | Re: [PATCH] reduce export symbol CRC table size on 64-bit archs |
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>>> Michal Marek <mmarek@suse.cz> 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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