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SubjectRe: [RFC] Normalizing byteorder/unaligned access API
On Tue, 7 Oct 2008, Harvey Harrison wrote:
> On Tue, 2008-10-07 at 17:33 -0600, Matthew Wilcox wrote:
> > On Tue, Oct 07, 2008 at 03:39:25PM -0700, Harvey Harrison wrote:
> > > As an example, in the write command handling in achba.c, a patch similar to the following
> > > (assumes the existence of a __be24 type somewhere):
> >
> > What type could be defined to be '__be24'? Would
> >
> > typedef struct {
> > unsigned char data[3];
> > } __be24;
>
> __packed

I don't think __packed would help here, as alignment(struct) ==
max(alignment(struct member)) == alignment(char).

Don't you want the __packed on the structure that embeds the __be24?

Gr{oetje,eeting}s,

Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds


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