From mboxrd@z Thu Jan  1 00:00:00 1970
From: holler@ahsoftware.de (Alexander Holler)
Date: Mon, 20 Jun 2011 20:46:00 +0200
Subject: [PATCH] USB: ehci: use packed,aligned(4) instead of removing
	the packed attribute
In-Reply-To: <Pine.LNX.4.44L0.1106201436430.2113-100000@iolanthe.rowland.org>
References: <Pine.LNX.4.44L0.1106201436430.2113-100000@iolanthe.rowland.org>
Message-ID: <4DFF9568.8030704@ahsoftware.de>
To: linux-arm-kernel@lists.infradead.org
List-Id: linux-arm-kernel.lists.infradead.org

Am 20.06.2011 20:39, schrieb Alan Stern:
> On Mon, 20 Jun 2011, Alexander Holler wrote:
>
>> I see it that way: packed is needed to be sure that at least for struct
>> ehci_regs there are no padding bytes inbetween the members.
>
> But is it _really_ needed?
>
>> It might
>> work without, but that depends on the compiler (-version, architecture,
>> whatever).
>
> Have there _ever_ been _any_ combinations of compiler, version,
> architecture, whatever, that had unwanted padding bytes in this
> structure?

I don't know. But if there would be no doubts, this discussion would not 
happen and I assume there never would have been an attribute packed there.

Regards,

Alexander