[sashal-linux-stable:queue-4.4 10/25] drivers/mmc/host/sdhci-of-esdhc.c:386:6: error: implicit declaration of function 'of_dma_is_coherent'

[sashal-linux-stable:queue-4.4 10/25] drivers/mmc/host/sdhci-of-esdhc.c:386:6: error: implicit declaration of function 'of_dma_is_coherent'

[kbuild test robot]

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tree:   https://git.kernel.org/pub/scm/linux/kernel/git/sashal/linux-stable.git queue-4.4
head:   b3505a83224e434233bf02d8a560a32b28d49ef8
commit: 536242d3dfd3bc391f1e3a1e77547fc55cbc278b [10/25] mmc: sdhci-of-esdhc: set DMA snooping based on DMA coherence
config: arm64-allyesconfig (attached as .config)
compiler: aarch64-linux-gcc (GCC) 7.4.0
reproduce:
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        git checkout 536242d3dfd3bc391f1e3a1e77547fc55cbc278b
        # save the attached .config to linux build tree
        GCC_VERSION=7.4.0 make.cross ARCH=arm64 

If you fix the issue, kindly add following tag
Reported-by: kbuild test robot <lkp@intel.com>

All errors (new ones prefixed by >>):

   drivers/mmc/host/sdhci-of-esdhc.c: In function 'esdhc_of_enable_dma':
>> drivers/mmc/host/sdhci-of-esdhc.c:386:6: error: implicit declaration of function 'of_dma_is_coherent' [-Werror=implicit-function-declaration]
     if (of_dma_is_coherent(dev->of_node))
         ^~~~~~~~~~~~~~~~~~
   drivers/mmc/host/sdhci-of-esdhc.c:386:25: error: 'dev' undeclared (first use in this function); did you mean 'cdev'?
     if (of_dma_is_coherent(dev->of_node))
                            ^~~
                            cdev
   drivers/mmc/host/sdhci-of-esdhc.c:386:25: note: each undeclared identifier is reported only once for each function it appears in
   cc1: some warnings being treated as errors

vim +/of_dma_is_coherent +386 drivers/mmc/host/sdhci-of-esdhc.c

   379	
   380	static int esdhc_of_enable_dma(struct sdhci_host *host)
   381	{
   382		u32 value;
   383	
   384		value = sdhci_readl(host, ESDHC_DMA_SYSCTL);
   385	
 > 386		if (of_dma_is_coherent(dev->of_node))
   387			value |= ESDHC_DMA_SNOOP;
   388		else
   389			value &= ~ESDHC_DMA_SNOOP;
   390	
   391		sdhci_writel(host, value, ESDHC_DMA_SYSCTL);
   392		return 0;
   393	}
   394	

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

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