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

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Date:	Sat, 3 Oct 2015 04:43:18 +0800
From:	kbuild test robot <lkp@...el.com>
To:	Nishanth Aravamudan <nacc@...ux.vnet.ibm.com>
Cc:	kbuild-all@...org, Matthew Wilcox <willy@...ux.intel.com>,
	Keith Busch <keith.busch@...el.com>,
	Benjamin Herrenschmidt <benh@...nel.crashing.org>,
	Paul Mackerras <paulus@...ba.org>,
	Michael Ellerman <mpe@...erman.id.au>,
	Alexey Kardashevskiy <aik@...abs.ru>,
	David Gibson <david@...son.dropbear.id.au>,
	Christoph Hellwig <hch@...radead.org>,
	linux-nvme@...ts.infradead.org, linux-kernel@...r.kernel.org,
	linuxppc-dev@...ts.ozlabs.org
Subject: Re: [PATCH 5/5 v2] drivers/nvme: default to the IOMMU page size

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	

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

Download attachment ".config.gz" of type "application/octet-stream" (43733 bytes)