Re: [patch-2.4.0-test2]Re: Linux-2.4.0-test2

[Russell King]

Rusty Russell writes:
> But we don't assume:
> 	union {
> 		TYPE t1;
> 		TYPE t2;
> 		TYPE t3;
> 	} union_TYPE;
> 
> sizeof(union_TYPE) == sizeof(TYPE) because the ARM breaks this...
> 
> So these `sane alignment' rules should be documented somewhere,

Same rules apply on ARM - the union is padded to the next 32-bit word
natural boundary, no matter what sizeof(TYPE) is.  ie:

	sizeof(TYPE)	sizeof(union_TYPE)
	1		4
	2		4
	4		4
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