linux-kernel - Re: [PATCH v8 2/2] mtd: rawnand: meson: add support for Amlogic NAND flash controller

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Date:   Tue, 18 Dec 2018 23:57:53 +0800
From:   kbuild test robot <lkp@...el.com>
To:     Jianxin Pan <jianxin.pan@...ogic.com>
Cc:     kbuild-all@...org, Boris Brezillon <boris.brezillon@...tlin.com>,
        linux-mtd@...ts.infradead.org, Liang Yang <liang.yang@...ogic.com>,
        Yixun Lan <yixun.lan@...ogic.com>,
        Jianxin Pan <jianxin.pan@...ogic.com>,
        David Woodhouse <dwmw2@...radead.org>,
        Miquel Raynal <miquel.raynal@...tlin.com>,
        Brian Norris <computersforpeace@...il.com>,
        Marek Vasut <marek.vasut@...il.com>,
        Richard Weinberger <richard@....at>,
        Jerome Brunet <jbrunet@...libre.com>,
        Neil Armstrong <narmstrong@...libre.com>,
        Martin Blumenstingl <martin.blumenstingl@...glemail.com>,
        Carlo Caione <carlo@...one.org>,
        Kevin Hilman <khilman@...libre.com>,
        Rob Herring <robh@...nel.org>, Jian Hu <jian.hu@...ogic.com>,
        Hanjie Lin <hanjie.lin@...ogic.com>,
        Victor Wan <victor.wan@...ogic.com>,
        linux-amlogic@...ts.infradead.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v8 2/2] mtd: rawnand: meson: add support for Amlogic NAND
 flash controller

Hi Liang,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on mtd/nand/next]
[also build test ERROR on v4.20-rc7 next-20181218]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url:    https://github.com/0day-ci/linux/commits/Jianxin-Pan/dt-bindings-nand-meson-add-Amlogic-NAND-controller-driver/20181217-070347
base:   git://git.infradead.org/linux-mtd.git nand/next
config: arm-allmodconfig (attached as .config)
compiler: arm-linux-gnueabi-gcc (Debian 7.2.0-11) 7.2.0
reproduce:
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # save the attached .config to linux build tree
        GCC_VERSION=7.2.0 make.cross ARCH=arm 

All errors (new ones prefixed by >>):

   drivers/mtd/nand/raw/meson_nand.c: In function 'meson_nfc_is_buffer_dma_safe':
>> drivers/mtd/nand/raw/meson_nand.c:833:35: error: implicit declaration of function 'object_is_on_stack'; did you mean 'do_softirq_own_stack'? [-Werror=implicit-function-declaration]
     if (virt_addr_valid(buffer) && (!object_is_on_stack(buffer)))
                                      ^~~~~~~~~~~~~~~~~~
                                      do_softirq_own_stack
   cc1: some warnings being treated as errors

vim +833 drivers/mtd/nand/raw/meson_nand.c

   830	
   831	bool meson_nfc_is_buffer_dma_safe(const void *buffer)
   832	{
 > 833		if (virt_addr_valid(buffer) && (!object_is_on_stack(buffer)))
   834			return true;
   835		return false;
   836	}
   837	

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