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From: Andrey Smirnov <andrew.smirnov@gmail.com>
To: Sascha Hauer <s.hauer@pengutronix.de>
Cc: "barebox@lists.infradead.org" <barebox@lists.infradead.org>
Subject: Re: [PATCH] arm: Disable unaligned access if MMU is switched off
Date: Tue, 29 Sep 2015 10:53:17 -0700	[thread overview]
Message-ID: <CAHQ1cqGL1_ge=xpv1n8AS5X0DAVXhPSevrXoT5761wARSNuvug@mail.gmail.com> (raw)
In-Reply-To: <20150929073225.GQ7858@pengutronix.de>

>
> Even with MMU enabled in the config we still run some initial portions
> of the code with MMU disabled, so it seems safer to enable this option
> unconditionally.
> On the other hand disabling unaligned accesses makes the image around
> 1.5% bigger (tested with imx_v7_defconfig), so the compiler really makes
> use of this option.
> Ok, better safe than sorry, so I vote for always passing
> -mno-unaligned-accesses.

OK, sounds good, I'll update the patch and send the second version shortly.

>
> Sascha
>
> --
> Pengutronix e.K.                           |                             |
> Industrial Linux Solutions                 | http://www.pengutronix.de/  |
> Peiner Str. 6-8, 31137 Hildesheim, Germany | Phone: +49-5121-206917-0    |
> Amtsgericht Hildesheim, HRA 2686           | Fax:   +49-5121-206917-5555 |

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      reply	other threads:[~2015-09-29 17:53 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-09-24  3:17 Andrey Smirnov
2015-09-24  9:20 ` Lucas Stach
2015-09-29  7:32   ` Sascha Hauer
2015-09-29 17:53     ` Andrey Smirnov [this message]

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