Messages in this thread | | | Subject | Re: [PATCH] Introduce compat_u64 and compat_s64 types | From | David Woodhouse <> | Date | Fri, 15 Jun 2007 13:38:32 +0100 |
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On Fri, 2007-06-15 at 06:11 -0600, Matthew Wilcox wrote: > You're relying on compat_[us]64 being only used in structures which are > already packed.
In which case the whole exercise is pointless, on account of the structure being already packed. It was _already_ laid out the same on 32-bit and 64-bit builds.
> If someone uses them in a non-packed struct, they won't > decrease the alignment. I think it would be more effective to specify > it as: > __attribute__((aligned(4), packed))
Good point. Yes, it looks like we need the additional 'packed' in order for the aligned(4) to be anything other than a no-op.
-- dwmw2
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