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    SubjectRe: [PATCH v4 02/10] xen/blkfront: separate per ring information out of device info
    Hi Bob,

    [auto build test ERROR on v4.3-rc7 -- if it's inappropriate base, please suggest rules for selecting the more suitable base]

    url: https://github.com/0day-ci/linux/commits/Bob-Liu/xen-block-multi-hardware-queues-rings-support/20151102-122806
    config: x86_64-allyesconfig (attached as .config)
    reproduce:
    # save the attached .config to linux build tree
    make ARCH=x86_64

    Note: the linux-review/Bob-Liu/xen-block-multi-hardware-queues-rings-support/20151102-122806 HEAD b29fe44b095649f8faddc4474daba13199c1f5e0 builds fine.
    It only hurts bisectibility.

    All errors (new ones prefixed by >>):

    drivers/block/xen-blkfront.c: In function 'blkif_queue_rq':
    >> drivers/block/xen-blkfront.c:639:17: error: 'info' undeclared (first use in this function)
    spin_lock_irq(&info->io_lock);
    ^
    drivers/block/xen-blkfront.c:639:17: note: each undeclared identifier is reported only once for each function it appears in

    vim +/info +639 drivers/block/xen-blkfront.c

    907c3eb18 Bob Liu 2015-07-13 633 static int blkif_queue_rq(struct blk_mq_hw_ctx *hctx,
    907c3eb18 Bob Liu 2015-07-13 634 const struct blk_mq_queue_data *qd)
    9f27ee595 Jeremy Fitzhardinge 2007-07-17 635 {
    2a8974fd4 Bob Liu 2015-11-02 636 struct blkfront_ring_info *rinfo = (struct blkfront_ring_info *)hctx->driver_data;
    9f27ee595 Jeremy Fitzhardinge 2007-07-17 637
    907c3eb18 Bob Liu 2015-07-13 638 blk_mq_start_request(qd->rq);
    907c3eb18 Bob Liu 2015-07-13 @639 spin_lock_irq(&info->io_lock);
    2a8974fd4 Bob Liu 2015-11-02 640 if (RING_FULL(&rinfo->ring))
    907c3eb18 Bob Liu 2015-07-13 641 goto out_busy;
    9f27ee595 Jeremy Fitzhardinge 2007-07-17 642

    :::::: The code at line 639 was first introduced by commit
    :::::: 907c3eb18e0bd86ca12a9de80befe8e3647bac3e xen-blkfront: convert to blk-mq APIs

    :::::: TO: Bob Liu <bob.liu@oracle.com>
    :::::: CC: David Vrabel <david.vrabel@citrix.com>

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