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From: kbuild test robot <lkp@intel.com>
To: John Hubbard <jhubbard@nvidia.com>
Cc: kbuild-all@lists.01.org,
	"Andrew Morton" <akpm@linux-foundation.org>,
	"Michal Hocko" <mhocko@suse.com>, "Jan Kara" <jack@suse.cz>,
	kvm@vger.kernel.org, linux-doc@vger.kernel.org,
	"David Airlie" <airlied@linux.ie>,
	"Dave Chinner" <david@fromorbit.com>,
	dri-devel@lists.freedesktop.org,
	LKML <linux-kernel@vger.kernel.org>,
	linux-mm@kvack.org, "Paul Mackerras" <paulus@samba.org>,
	linux-kselftest@vger.kernel.org,
	"Ira Weiny" <ira.weiny@intel.com>,
	"Jonathan Corbet" <corbet@lwn.net>,
	linux-rdma@vger.kernel.org,
	"Michael Ellerman" <mpe@ellerman.id.au>,
	"Mike Rapoport" <rppt@linux.ibm.com>,
	"Christoph Hellwig" <hch@infradead.org>,
	"Jason Gunthorpe" <jgg@ziepe.ca>,
	"Vlastimil Babka" <vbabka@suse.cz>,
	"Björn Töpel" <bjorn.topel@intel.com>,
	linux-media@vger.kernel.org, "Shuah Khan" <shuah@kernel.org>,
	"John Hubbard" <jhubbard@nvidia.com>,
	linux-block@vger.kernel.org, "Jérôme Glisse" <jglisse@redhat.com>,
	"Al Viro" <viro@zeniv.linux.org.uk>,
	"Dan Williams" <dan.j.williams@intel.com>,
	"Mauro Carvalho Chehab" <mchehab@kernel.org>,
	"Magnus Karlsson" <magnus.karlsson@intel.com>,
	"Jens Axboe" <axboe@kernel.dk>,
	netdev@vger.kernel.org,
	"Alex Williamson" <alex.williamson@redhat.com>,
	linux-fsdevel@vger.kernel.org, bpf@vger.kernel.org,
	linuxppc-dev@lists.ozlabs.org,
	"David S . Miller" <davem@davemloft.net>,
	"Mike Kravetz" <mike.kravetz@oracle.com>
Subject: Re: [PATCH 07/19] mm/gup: introduce pin_user_pages*() and FOLL_PIN
Date: Mon, 25 Nov 2019 16:44:10 +0800	[thread overview]
Message-ID: <201911251639.UWS3hE3Y%lkp@intel.com> (raw)
In-Reply-To: <20191125042011.3002372-8-jhubbard@nvidia.com>

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Hi John,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on rdma/for-next]
[cannot apply to v5.4 next-20191122]
[if your patch is applied to the wrong git tree, please drop us a note to help
improve the system. BTW, we also suggest to use '--base' option to specify the
base tree in git format-patch, please see https://stackoverflow.com/a/37406982]

url:    https://github.com/0day-ci/linux/commits/John-Hubbard/pin_user_pages-reduced-risk-series-for-Linux-5-5/20191125-125637
base:   https://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma.git for-next
config: arm-randconfig-a001-20191125 (attached as .config)
compiler: arm-linux-gnueabi-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
        # save the attached .config to linux build tree
        GCC_VERSION=7.4.0 make.cross ARCH=arm 

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

All errors (new ones prefixed by >>):

   mm/gup.o: In function `pin_user_pages_remote':
>> mm/gup.c:2528: undefined reference to `get_user_pages_remote'

vim +2528 mm/gup.c

  2507	
  2508	/**
  2509	 * pin_user_pages_remote() - pin pages of a remote process (task != current)
  2510	 *
  2511	 * For now, this is a placeholder function, until various call sites are
  2512	 * converted to use the correct get_user_pages*() or pin_user_pages*() API. So,
  2513	 * this is identical to get_user_pages_remote().
  2514	 *
  2515	 * This is intended for Case 1 (DIO) in Documentation/vm/pin_user_pages.rst. It
  2516	 * is NOT intended for Case 2 (RDMA: long-term pins).
  2517	 */
  2518	long pin_user_pages_remote(struct task_struct *tsk, struct mm_struct *mm,
  2519				   unsigned long start, unsigned long nr_pages,
  2520				   unsigned int gup_flags, struct page **pages,
  2521				   struct vm_area_struct **vmas, int *locked)
  2522	{
  2523		/*
  2524		 * This is a placeholder, until the pin functionality is activated.
  2525		 * Until then, just behave like the corresponding get_user_pages*()
  2526		 * routine.
  2527		 */
> 2528		return get_user_pages_remote(tsk, mm, start, nr_pages, gup_flags, pages,
  2529					     vmas, locked);
  2530	}
  2531	EXPORT_SYMBOL(pin_user_pages_remote);
  2532	

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

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  parent reply	other threads:[~2019-11-25  8:44 UTC|newest]

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-11-25  4:19 [PATCH 00/19] pin_user_pages(): reduced-risk series for Linux 5.5 John Hubbard
2019-11-25  4:19 ` [PATCH 01/19] mm/gup: factor out duplicate code from four routines John Hubbard
2019-11-25  4:19 ` [PATCH 02/19] mm/gup: move try_get_compound_head() to top, fix minor issues John Hubbard
2019-11-25  4:19 ` [PATCH 03/19] mm: Cleanup __put_devmap_managed_page() vs ->page_free() John Hubbard
2019-11-25  4:19 ` [PATCH 04/19] goldish_pipe: rename local pin_user_pages() routine John Hubbard
2019-11-25  4:19 ` [PATCH 05/19] mm: fix get_user_pages_remote()'s handling of FOLL_LONGTERM John Hubbard
2019-11-25  4:19 ` [PATCH 06/19] vfio: fix FOLL_LONGTERM use, simplify get_user_pages_remote() call John Hubbard
2019-11-25  4:19 ` [PATCH 07/19] mm/gup: introduce pin_user_pages*() and FOLL_PIN John Hubbard
2019-11-25  7:47   ` kbuild test robot
2019-11-25  8:44   ` kbuild test robot [this message]
2019-11-25 20:13     ` John Hubbard
2019-11-25  4:20 ` [PATCH 08/19] goldish_pipe: convert to pin_user_pages() and put_user_page() John Hubbard
2019-11-25  4:20 ` [PATCH 09/19] IB/{core,hw,umem}: set FOLL_PIN via pin_user_pages*(), fix up ODP John Hubbard
2019-11-25  4:20 ` [PATCH 10/19] mm/process_vm_access: set FOLL_PIN via pin_user_pages_remote() John Hubbard
2019-11-25  4:20 ` [PATCH 11/19] drm/via: set FOLL_PIN via pin_user_pages_fast() John Hubbard
2019-11-25  4:20 ` [PATCH 12/19] fs/io_uring: set FOLL_PIN via pin_user_pages() John Hubbard
2019-11-25  4:20 ` [PATCH 13/19] net/xdp: " John Hubbard
2019-11-25  4:20 ` [PATCH 14/19] media/v4l2-core: set pages dirty upon releasing DMA buffers John Hubbard
2019-11-25  4:20 ` [PATCH 15/19] media/v4l2-core: pin_user_pages (FOLL_PIN) and put_user_page() conversion John Hubbard
2019-11-25  4:20 ` [PATCH 16/19] vfio, mm: " John Hubbard
2019-11-25  4:20 ` [PATCH 17/19] powerpc: book3s64: convert to pin_user_pages() and put_user_page() John Hubbard
2019-11-25  8:59   ` Jan Kara
2019-11-25 20:46     ` John Hubbard
2019-11-25  4:20 ` [PATCH 18/19] mm/gup_benchmark: use proper FOLL_WRITE flags instead of hard-coding "1" John Hubbard
2019-11-25  4:20 ` [PATCH 19/19] mm, tree-wide: rename put_user_page*() to unpin_user_page*() John Hubbard

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