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

[Alan Cox]

> So all drivers (I'm sure there are a few) that use something like
> 
> struct foo {
> 	u32	a;
> 	u32	b;
> 	u32	c;
> 	u32	d;
> }
> 
> to communicate with some hardware (4 32-bit values with addresses in
> sequence) should be fixed not to make assumptions about the layout of a
> struct?

You need to be very very careful doing it. Rusty found this out recently
with netfilter. I had problems in 2.1.x with SYS5fs for similar reasons - the
m68k packs on 16bit boundaries so all the superblocks were the wrong size.
Thankfully the author at least checked the size and panic()ed on error