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Message-ID: <54BFF332.1040003@gmail.com>
Date:   Wed, 21 Jan 2015 10:42:58 -0800
From:   David Daney <ddaney.cavm@gmail.com>
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To:     Aaro Koskinen <aaro.koskinen@iki.fi>
CC:     Markos Chandras <Markos.Chandras@imgtec.com>,
        Joshua Kinard <kumba@gentoo.org>,
        Ralf Baechle <ralf@linux-mips.org>,
        Linux MIPS List <linux-mips@linux-mips.org>
Subject: Re: [PATCH] MIPS: Display CPU byteorder in /proc/cpuinfo
References: <54BCC827.3020806@gentoo.org> <54BEDF3C.6040105@gmail.com> <54BF12B9.8000507@gentoo.org> <54BF14D2.70006@gentoo.org> <54BF7DE6.6050704@imgtec.com> <20150121183817.GB644@fuloong-minipc.musicnaut.iki.fi>
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On 01/21/2015 10:38 AM, Aaro Koskinen wrote:
> Hi,
>
> On Wed, Jan 21, 2015 at 10:22:30AM +0000, Markos Chandras wrote:
>> I believe this patch is mostly useful for cores that can boot in both LE
>> and BE so being able to tell the byteorder from cpuinfo can be helpful
>> at times. Having readelf and other tools in your userland may not always
>> be the case, but you surely have "cat" :)
>>
>> So that patch looks good to me but i think the #ifdefs can be avoided.
>> Can we use
>>
>> if (config_enabled(CONFIG_CPU_BIG_ENDIAN) {
>
> Kernel has already support making whole .config available in /proc
> where you can check such things.
>
You  mean like this?:

~ # zcat /proc/config.gz | grep 'CPU.*ENDIAN='
CONFIG_CPU_BIG_ENDIAN=y