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From: "Krzysztof Kozłowski" <k.kozlowski@samsung.com>
To: Russell King - ARM Linux <linux@arm.linux.org.uk>,
	Mark Brown <broonie@kernel.org>
Cc: linux-samsung-soc@vger.kernel.org,
	linaro-kernel@lists.linaro.org,
	linux-arm-kernel@lists.infradead.org,
	kernel-build-reports@lists.linaro.org,
	Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Subject: Re: Exynos build failure in -next allmodconfig
Date: Tue, 16 Sep 2014 13:44:44 +0200	[thread overview]
Message-ID: <541822AC.8040805@samsung.com> (raw)
In-Reply-To: <20140915175709.GE12361@n2100.arm.linux.org.uk>

On 15.09.2014 19:57, Russell King - ARM Linux wrote:
> On Mon, Sep 15, 2014 at 09:34:58AM -0700, Mark Brown wrote:
>> On Mon, Sep 15, 2014 at 11:57:09AM +0100, Build bot for Mark Brown wrote:
>>
>> Today's -next got a build failure in ARM allmodconfig due to platsmp.c:
>>
>> | arch/arm/mach-exynos/platsmp.c:198:31: warning: incorrect type in return expression (different address spaces)
>> | arch/arm/mach-exynos/platsmp.c:198:31:    expected void [noderef] <asn:2>*
>> | arch/arm/mach-exynos/platsmp.c:198:31:    got void *
>> | arch/arm/mach-exynos/platsmp.c:198:31: warning: incorrect type in return expression (different address spaces)
>> | arch/arm/mach-exynos/platsmp.c:198:31:    expected void [noderef] <asn:2>*
>> | arch/arm/mach-exynos/platsmp.c:198:31:    got void *
>> |   CC      arch/arm/mach-exynos/platsmp.o
>> | /tmp/ccC9fkwF.s: Assembler messages:
>> | /tmp/ccC9fkwF.s:423: Error: selected processor does not support ARM mode `isb '
>> | /tmp/ccC9fkwF.s:428: Error: selected processor does not support ARM mode `isb '
>> | /tmp/ccC9fkwF.s:429: Error: selected processor does not support ARM mode `dsb '
>> | scripts/Makefile.build:257: recipe for target 'arch/arm/mach-exynos/platsmp.o' failed
>>
>> Looks like we need a compiler flags override for that file.
>
> Or.. the question is why a .c file is not using the proper macros.

Actually I am the one to blame for build failure (commit: "ARM: EXYNOS: 
Move code from hotplug.c to platsmp.c"). The problem is 
v7_exit_coherency_flush() which I think does not make sense on ARMv6.

I'll replace the ISB and DSB commands with macros but the real question 
is whether the mach-exynos/platsmp.c file and mach-exynos directory 
should be compiled when CONFIG_ARCH_EXYNOS is not defined?

Best regards,
Krzysztof

WARNING: multiple messages have this Message-ID (diff)
From: k.kozlowski@samsung.com (Krzysztof Kozłowski)
To: linux-arm-kernel@lists.infradead.org
Subject: Exynos build failure in -next allmodconfig
Date: Tue, 16 Sep 2014 13:44:44 +0200	[thread overview]
Message-ID: <541822AC.8040805@samsung.com> (raw)
In-Reply-To: <20140915175709.GE12361@n2100.arm.linux.org.uk>

On 15.09.2014 19:57, Russell King - ARM Linux wrote:
> On Mon, Sep 15, 2014 at 09:34:58AM -0700, Mark Brown wrote:
>> On Mon, Sep 15, 2014 at 11:57:09AM +0100, Build bot for Mark Brown wrote:
>>
>> Today's -next got a build failure in ARM allmodconfig due to platsmp.c:
>>
>> | arch/arm/mach-exynos/platsmp.c:198:31: warning: incorrect type in return expression (different address spaces)
>> | arch/arm/mach-exynos/platsmp.c:198:31:    expected void [noderef] <asn:2>*
>> | arch/arm/mach-exynos/platsmp.c:198:31:    got void *
>> | arch/arm/mach-exynos/platsmp.c:198:31: warning: incorrect type in return expression (different address spaces)
>> | arch/arm/mach-exynos/platsmp.c:198:31:    expected void [noderef] <asn:2>*
>> | arch/arm/mach-exynos/platsmp.c:198:31:    got void *
>> |   CC      arch/arm/mach-exynos/platsmp.o
>> | /tmp/ccC9fkwF.s: Assembler messages:
>> | /tmp/ccC9fkwF.s:423: Error: selected processor does not support ARM mode `isb '
>> | /tmp/ccC9fkwF.s:428: Error: selected processor does not support ARM mode `isb '
>> | /tmp/ccC9fkwF.s:429: Error: selected processor does not support ARM mode `dsb '
>> | scripts/Makefile.build:257: recipe for target 'arch/arm/mach-exynos/platsmp.o' failed
>>
>> Looks like we need a compiler flags override for that file.
>
> Or.. the question is why a .c file is not using the proper macros.

Actually I am the one to blame for build failure (commit: "ARM: EXYNOS: 
Move code from hotplug.c to platsmp.c"). The problem is 
v7_exit_coherency_flush() which I think does not make sense on ARMv6.

I'll replace the ISB and DSB commands with macros but the real question 
is whether the mach-exynos/platsmp.c file and mach-exynos directory 
should be compiled when CONFIG_ARCH_EXYNOS is not defined?

Best regards,
Krzysztof

  reply	other threads:[~2014-09-16 11:44 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <E1XTTy1-0000vT-NC@cassiel.sirena.org.uk>
2014-09-15 16:34 ` Exynos build failure in -next allmodconfig Mark Brown
2014-09-15 17:57   ` Russell King - ARM Linux
2014-09-15 17:57     ` Russell King - ARM Linux
2014-09-16 11:44     ` Krzysztof Kozłowski [this message]
2014-09-16 11:44       ` Krzysztof Kozłowski
2014-09-16 11:56       ` Russell King - ARM Linux
2014-09-16 11:56         ` Russell King - ARM Linux
2014-09-16 12:01       ` Tomasz Figa
2014-09-16 12:01         ` Tomasz Figa
2014-09-16 15:54         ` Mark Brown
2014-09-16 15:54           ` Mark Brown

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