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

From: H. Peter Anvin
Date: Fri Jul 10 2009 - 10:39:26 EST


Jan Beulich wrote:
>
> 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.
>

If we're changing module-init-tools, it seems changing the section name
would be cleaner anyway.

-hpa

--
H. Peter Anvin, Intel Open Source Technology Center
I work for Intel. I don't speak on their behalf.

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