linux-kernel - Re: [PATCH V10 7/7] dma: qcom_hidma: add support for object hierarchy

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Date:	Mon, 21 Dec 2015 22:05:24 -0000
From:	Okaya@...eaurora.org
To:	"kbuild test robot" <lkp@...el.com>
Cc:	"Sinan Kaya" <okaya@...eaurora.org>, kbuild-all@...org,
	dmaengine@...r.kernel.org, mark.rutland@....com,
	timur@...eaurora.org, devicetree@...r.kernel.org,
	cov@...eaurora.org, vinod.koul@...el.com, jcm@...hat.com,
	agross@...eaurora.org, arnd@...db.de,
	linux-arm-msm@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH V10 7/7] dma: qcom_hidma: add support for object
 hierarchy

> Hi Sinan,
>
> [auto build test ERROR on v4.4-rc5]
> [also build test ERROR on next-20151218]
>
> url:
> https://github.com/0day-ci/linux/commits/Sinan-Kaya/dma-add-Qualcomm-Technologies-HIDMA-driver/20151218-010637
> config: sparc64-allmodconfig (attached as .config)
> reproduce:
>         wget
> https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross
> -O ~/bin/make.cross
>         chmod +x ~/bin/make.cross
>         # save the attached .config to linux build tree
>         make.cross ARCH=sparc64
>
> All errors (new ones prefixed by >>):
>
>>> ERROR: "of_irq_parse_one" [drivers/dma/qcom/hdma_mgmt.ko] undefined!
>
> ---
> 0-DAY kernel test infrastructure                Open Source Technology
> Center
> https://lists.01.org/pipermail/kbuild-all                   Intel
> Corporation
>

I am confused about this. The function call is made only if OF is defined.
The function that is being called is defined with extern symbol and
resides in drivers/of/irq.c. how does the sparc arch define OF yet exclude
drivers/of/irq.c

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