Re: [PATCH 5/5 v2] drivers/nvme: default to the IOMMU page size

[kbuild test robot]

Hi Nishanth,

[auto build test results on v4.3-rc3 -- if it's inappropriate base, please ignore]

config: sparc64-allyesconfig (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 error/warnings (new ones prefixed by >>):

   drivers/block/nvme-core.c: In function 'nvme_configure_admin_queue':
>> drivers/block/nvme-core.c:1717:2: error: implicit declaration of function 'dma_get_page_shift' [-Werror=implicit-function-declaration]
     unsigned page_shift = dma_get_page_shift(dev->dev);
     ^
   cc1: some warnings being treated as errors

vim +/dma_get_page_shift +1717 drivers/block/nvme-core.c

  1711	static int nvme_configure_admin_queue(struct nvme_dev *dev)
  1712	{
  1713		int result;
  1714		u32 aqa;
  1715		u64 cap = readq(&dev->bar->cap);
  1716		struct nvme_queue *nvmeq;
> 1717		unsigned page_shift = dma_get_page_shift(dev->dev);
  1718		unsigned dev_page_min = NVME_CAP_MPSMIN(cap) + 12;
  1719		unsigned dev_page_max = NVME_CAP_MPSMAX(cap) + 12;
  1720	

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