Re: [PATCH] Re: WAN: new PPP code for generic HDLC

From: Stephen Hemminger
Date: Wed Mar 12 2008 - 14:52:38 EST



> +struct hdlc_header {
> + u8 address;
> + u8 control;
> + __be16 protocol;
> +} __attribute__ ((packed));
> +
> +struct cp_header {
> + u8 code;
> + u8 id;
> + __be16 len;
> +} __attribute__ ((packed));
> +

If I remember correctly, the packed is unnecessary for structures like this
and causes GCC to generate worse code.
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