In article <[email protected]> (at Thu, 05 May 2005 21:39:47 +1000), Herbert Xu <[email protected]> says:
> YOSHIFUJI Hideaki / ???? <[email protected]> wrote:
> > In article <[email protected]> (at Wed, 04 May 2005 19:53:53 -0700), Mike Christie <[email protected]> says:
> >
> >> +struct iscsi_uevent {
> > :
> >> +} __attribute__ ((aligned (sizeof(unsigned long))));
> >
> > I think it'd be better to use sizeof(uint64_t) or something.
>
> Is there a benefit in aligning on 64-bit boundaries for 32-bit platforms?
Well, this if for avoiding inconsistency between kernel and userspace.
If you use unsigned long, sizeof(unsigned long) may be inconssitent
between kernel and userland like this:
kernel: sizeof(unsigned long) == 8
userspace: sizeof(unsigned long) == 4
--yoshfuji
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