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Date:	Mon, 3 Feb 2014 11:58:55 +0300
From:	Dan Carpenter <>
To:	Chen Gang <>
Cc:	James Hogan <>,,,
	Antonio Quartulli <>,
	Greg KH <>,,
	"" <>,
	David Miller <>,,,,
	netdev <>,
Subject: Re: [PATCH] drivers: staging: lustre: lustre: include: add
 "__attribute__((packed))" for the related union

On Sat, Feb 01, 2014 at 09:57:39PM +0800, Chen Gang wrote:
> It seems, our kernel still stick to treate 'pack' region have effect
> with both 'align' and 'sizeof'.

It's not about packed regions.  It's about unions.  It's saying the
sizeof() a union is a multiple of 4 unless it's packed.

union foo {
	short x;
	short y;

The author intended the sizeof(union foo) to be 2 but on metag arch then
it is 4.

dan carpenter

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