linuxppc-dev.lists.ozlabs.org archive mirror
 help / color / mirror / Atom feed
From: Chen Gang <gang.chen.5i5j@gmail.com>
To: Lennox Wu <lennox.wu@gmail.com>
Cc: "linux-m32r-ja@ml.linux-m32r.org"
	<linux-m32r-ja@ml.linux-m32r.org>,
	"linux-mips@linux-mips.org" <linux-mips@linux-mips.org>,
	"a-jacquiot@ti.com" <a-jacquiot@ti.com>,
	"catalin.marinas@arm.com" <catalin.marinas@arm.com>,
	"linux@lists.openrisc.net" <linux@lists.openrisc.net>,
	"will.deacon@arm.com" <will.deacon@arm.com>,
	"dhowells@redhat.com" <dhowells@redhat.com>,
	"jcmvbkbc@gmail.com" <jcmvbkbc@gmail.com>,
	"paulus@samba.org" <paulus@samba.org>,
	"hpa@zytor.com" <hpa@zytor.com>,
	"sparclinux@vger.kernel.org" <sparclinux@vger.kernel.org>,
	"linux-hexagon@vger.kernel.org" <linux-hexagon@vger.kernel.org>,
	"gxt@mprc.pku.edu.cn" <gxt@mprc.pku.edu.cn>,
	Jean Delvare <jdelvare@suse.de>,
	"egtvedt@samfundet.no" <egtvedt@samfundet.no>,
	"jonas@southpole.se" <jonas@southpole.se>,
	Liqin Chen <liqin.linux@gmail.com>,
	"jesper.nilsson@axis.com" <jesper.nilsson@axis.com>,
	"linux-am33-list@redhat.com" <linux-am33-list@redhat.com>,
	"linux@arm.linux.org.uk" <linux@arm.linux.org.uk>,
	"linux-c6x-dev@linux-c6x.org" <linux-c6x-dev@linux-c6x.org>,
	"David S. Miller" <davem@davemloft.net>,
	"linux-xtensa@linux-xtensa.org" <linux-xtensa@linux-xtensa.org>,
	"takata@linux-m32r.org" <takata@linux-m32r.org>,
	"x86@kernel.org" <x86@kernel.org>,
	"jejb@parisc-linux.org" <jejb@parisc-linux.org>,
	"mingo@redhat.com" <mingo@redhat.com>,
	Geert Uytterhoeven <geert@linux-m68k.org>,
	"msalter@redhat.com" <msalter@redhat.com>,
	"mattst88@gmail.com" <mattst88@gmail.com>,
	"jdike@addtoit.com" <jdike@addtoit.com>,
	"hskinnemoen@gmail.com" <hskinnemoen@gmail.com>,
	"fenghua.yu@intel.com" <fenghua.yu@intel.com>,
	"james.hogan@imgtec.com" <james.hogan@imgtec.com>,
	Arnd Bergmann <arnd@arndb.de>,
	"realmz6@gmail.com" <realmz6@gmail.com>,
	"heiko.carstens@de.ibm.com" <heiko.carstens@de.ibm.com>,
	Vineet Gupta <Vineet.Gupta1@synopsys.com>,
	"linux-alpha@vger.kernel.org" <linux-alpha@vger.kernel.org>,
	"adi-buildroot-devel@lists.sourceforge.net"
	<adi-buildroot-devel@lists.sourceforge.net>,
	"cmetcalf@tilera.com" <cmetcalf@tilera.com>,
	"starvik@axis.com" <starvik@axis.com>,
	"linux-m68k@lists.linux-m68k.org"
	<linux-m68k@lists.linux-m68k.org>,
	"linux-m32r@ml.linux-m32r.org" <linux-m32r@ml.linux-m32r.org>,
	"ink@jurassic.park.msu.ru" <ink@jurassic.park.msu.ru>,
	"user-mode-linux-user@lists.sourceforge.net"
	<user-mode-linux-user@lists.sourceforge.net>,
	"tglx@linutronix.de" <tglx@linutronix.de>,
	"linux-metag@vger.kernel.org" <linux-metag@vger.kernel.org>,
	"linux-arm-kernel@lists.infradead.org"
	<linux-arm-kernel@lists.infradead.org>,
	"rth@twiddle.net" <rth@twiddle.net>,
	"chris@zankel.net" <chris@zankel.net>,
	Michal Simek <monstr@monstr.eu>,
	"tony.luck@intel.com" <tony.luck@intel.com>,
	"linux-ia64@vger.kernel.org" <linux-ia64@vger.kernel.org>,
	"linux-parisc@vger.kernel.org" <linux-parisc@vger.kernel.org>,
	"linux-cris-kernel@axis.com" <linux-cris-kernel@axis.com>,
	"linux-s390@vger.kernel.org" <linux-s390@vger.kernel.org>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	"ralf@linux-mips.org" <ralf@linux-mips.org>,
	"rkuo@codeaurora.org" <rkuo@codeaurora.org>,
	"user-mode-linux-devel@lists.sourceforge.net"
	<user-mode-linux-devel@lists.sourceforge.net>,
	Richard Weinberger <richard@nod.at>,
	Martin Schwidefsky <schwidefsky@de.ibm.com>,
	"linux390@de.ibm.com" <linux390@de.ibm.com>,
	"akpm@linux-foundation.org" <akpm@linux-foundation.org>,
	"yasutake.koichi@jp.panasonic.com"
	<yasutake.koichi@jp.panasonic.com>,
	"linuxppc-dev@lists.ozlabs.org" <linuxppc-dev@lists.ozlabs.org>,
	"deller@gmx.de" <deller@gmx.de>
Subject: Re: [PATCH v3] arch: Kconfig: Let all architectures set endian explicitly
Date: Fri, 15 Aug 2014 06:22:35 +0800	[thread overview]
Message-ID: <53ED36AB.8020703@gmail.com> (raw)
In-Reply-To: <CAF0htA6qfhyVXEuLbruiz+dfxnieF-309NdxSDhoEYHM=aBhQA@mail.gmail.com>

On 08/15/2014 02:27 AM, Lennox Wu wrote:
> I don't think it's necessary, what's the benfit?
> 
> 2014-08-15 2:21 GMT+08:00 Vineet Gupta <Vineet.Gupta1@synopsys.com>:
> 
>> On Thursday 14 August 2014 09:55 AM, Chen Gang wrote:
[...]
>>> diff --git a/arch/arc/Kconfig b/arch/arc/Kconfig
>>> index 9596b0a..e939abd 100644
>>> --- a/arch/arc/Kconfig
>>> +++ b/arch/arc/Kconfig
>>> @@ -35,6 +35,7 @@ config ARC
>>>       select OF_EARLY_FLATTREE
>>>       select PERF_USE_VMALLOC
>>>       select HAVE_DEBUG_STACKOVERFLOW
>>> +     select CPU_LITTLE_ENDIAN if !CPU_BIG_ENDIAN
>>
>> It is not clear what exactly are you trying to fix. What doesn't work w/o
>> this
>> patch !
>>

For many individual modules may need check CPU_LITTLE_ENDIAN or
CPU_BIG_ENDIAN, which is an architecture's attribute.

Or they have to list many architectures which they support, which they
don't support. And still, it is not precise.

For architecture API, endian is a main architecture's attribute which
may be used by outside, so every architecture need let outside know
about it, explicitly.


Thanks.
-- 
Chen Gang

Open share and attitude like air water and life which God blessed

  reply	other threads:[~2014-08-14 22:22 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-08-14 16:54 [PATCH v3] arch: Kconfig: Let all architectures set endian explicitly Chen Gang
2014-08-14 18:04 ` Ralf Baechle
2014-08-14 22:14   ` Chen Gang
2014-08-15  9:01     ` Chen Gang
2014-08-24  8:38       ` Chen Gang
2014-08-25 12:26         ` Chen Gang
2014-08-14 18:21 ` Vineet Gupta
2014-08-14 18:27   ` Lennox Wu
2014-08-14 22:22     ` Chen Gang [this message]
2014-08-14 23:12       ` Vineet Gupta
2014-08-15  1:29         ` Chen Gang
2014-08-15  1:47 ` Max Filippov
2014-08-15  1:52   ` Max Filippov
2014-08-15  2:06     ` Chen Gang

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=53ED36AB.8020703@gmail.com \
    --to=gang.chen.5i5j@gmail.com \
    --cc=Vineet.Gupta1@synopsys.com \
    --cc=a-jacquiot@ti.com \
    --cc=adi-buildroot-devel@lists.sourceforge.net \
    --cc=akpm@linux-foundation.org \
    --cc=arnd@arndb.de \
    --cc=catalin.marinas@arm.com \
    --cc=chris@zankel.net \
    --cc=cmetcalf@tilera.com \
    --cc=davem@davemloft.net \
    --cc=deller@gmx.de \
    --cc=dhowells@redhat.com \
    --cc=egtvedt@samfundet.no \
    --cc=fenghua.yu@intel.com \
    --cc=geert@linux-m68k.org \
    --cc=gxt@mprc.pku.edu.cn \
    --cc=heiko.carstens@de.ibm.com \
    --cc=hpa@zytor.com \
    --cc=hskinnemoen@gmail.com \
    --cc=ink@jurassic.park.msu.ru \
    --cc=james.hogan@imgtec.com \
    --cc=jcmvbkbc@gmail.com \
    --cc=jdelvare@suse.de \
    --cc=jdike@addtoit.com \
    --cc=jejb@parisc-linux.org \
    --cc=jesper.nilsson@axis.com \
    --cc=jonas@southpole.se \
    --cc=lennox.wu@gmail.com \
    --cc=linux-alpha@vger.kernel.org \
    --cc=linux-am33-list@redhat.com \
    --cc=linux-arm-kernel@lists.infradead.org \
    --cc=linux-c6x-dev@linux-c6x.org \
    --cc=linux-cris-kernel@axis.com \
    --cc=linux-hexagon@vger.kernel.org \
    --cc=linux-ia64@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-m32r-ja@ml.linux-m32r.org \
    --cc=linux-m32r@ml.linux-m32r.org \
    --cc=linux-m68k@lists.linux-m68k.org \
    --cc=linux-metag@vger.kernel.org \
    --cc=linux-mips@linux-mips.org \
    --cc=linux-parisc@vger.kernel.org \
    --cc=linux-s390@vger.kernel.org \
    --cc=linux-xtensa@linux-xtensa.org \
    --cc=linux390@de.ibm.com \
    --cc=linux@arm.linux.org.uk \
    --cc=linux@lists.openrisc.net \
    --cc=linuxppc-dev@lists.ozlabs.org \
    --cc=liqin.linux@gmail.com \
    --cc=mattst88@gmail.com \
    --cc=mingo@redhat.com \
    --cc=monstr@monstr.eu \
    --cc=msalter@redhat.com \
    --cc=paulus@samba.org \
    --cc=ralf@linux-mips.org \
    --cc=realmz6@gmail.com \
    --cc=richard@nod.at \
    --cc=rkuo@codeaurora.org \
    --cc=rth@twiddle.net \
    --cc=schwidefsky@de.ibm.com \
    --cc=sparclinux@vger.kernel.org \
    --cc=starvik@axis.com \
    --cc=takata@linux-m32r.org \
    --cc=tglx@linutronix.de \
    --cc=tony.luck@intel.com \
    --cc=user-mode-linux-devel@lists.sourceforge.net \
    --cc=user-mode-linux-user@lists.sourceforge.net \
    --cc=will.deacon@arm.com \
    --cc=x86@kernel.org \
    --cc=yasutake.koichi@jp.panasonic.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).