From: kbuild test robot <lkp@intel.com>
To: Liang Li <liang.z.li@intel.com>
Cc: kbuild-all@01.org, kvm@vger.kernel.org,
virtio-dev@lists.oasis-open.org, qemu-devel@nongun.org,
linux-kernel@vger.kernel.org, mst@redhat.com,
Liang Li <liang.z.li@intel.com>,
Paolo Bonzini <pbonzini@redhat.com>,
Cornelia Huck <cornelia.huck@de.ibm.com>,
Amit Shah <amit.shah@redhat.com>
Subject: Re: [PATCH 2/6] virtio-balloon: speed up inflate/deflate process
Date: Mon, 13 Jun 2016 18:17:02 +0800 [thread overview]
Message-ID: <201606131854.KIdE7pkX%fengguang.wu@intel.com> (raw)
In-Reply-To: <1465811233-21136-3-git-send-email-liang.z.li@intel.com>
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Hi,
[auto build test WARNING on v4.7-rc3]
[cannot apply to next-20160609]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]
url: https://github.com/0day-ci/linux/commits/Liang-Li/Fast-balloon-fast-live-migration/20160613-175812
config: m68k-allyesconfig (attached as .config)
compiler: m68k-linux-gcc (GCC) 4.9.0
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=m68k
All warnings (new ones prefixed by >>):
drivers/virtio/virtio_balloon.c: In function 'init_pfn_range':
>> drivers/virtio/virtio_balloon.c:123:2: warning: left shift count >= width of type
vb->min_pfn = (1UL << 48);
^
vim +123 drivers/virtio/virtio_balloon.c
107 unsigned long pfn = page_to_pfn(page);
108
109 BUILD_BUG_ON(PAGE_SHIFT < VIRTIO_BALLOON_PFN_SHIFT);
110 /* Convert pfn from Linux page size to balloon page size. */
111 return pfn * VIRTIO_BALLOON_PAGES_PER_PAGE;
112 }
113
114 static void balloon_ack(struct virtqueue *vq)
115 {
116 struct virtio_balloon *vb = vq->vdev->priv;
117
118 wake_up(&vb->acked);
119 }
120
121 static inline void init_pfn_range(struct virtio_balloon *vb)
122 {
> 123 vb->min_pfn = (1UL << 48);
124 vb->max_pfn = 0;
125 }
126
127 static inline void update_pfn_range(struct virtio_balloon *vb,
128 struct page *page)
129 {
130 unsigned long balloon_pfn = page_to_balloon_pfn(page);
131
---
0-DAY kernel test infrastructure Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all Intel Corporation
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next prev parent reply other threads:[~2016-06-13 10:17 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-06-13 9:47 [PATCH 0/6] Fast balloon & fast live migration Liang Li
2016-06-13 9:47 ` [PATCH 1/6] virtio-balloon: rework deflate to add page to a list Liang Li
2016-06-23 8:25 ` Li, Liang Z
2016-06-23 8:30 ` Li, Liang Z
2016-06-13 9:47 ` [PATCH 2/6] virtio-balloon: speed up inflate/deflate process Liang Li
2016-06-13 10:17 ` kbuild test robot [this message]
2016-06-24 5:39 ` Michael S. Tsirkin
2016-06-24 6:28 ` Li, Liang Z
2016-06-13 9:47 ` [PATCH 3/6] mm:split the drop cache operation into a function Liang Li
2016-06-13 9:47 ` [PATCH 4/6] virtio-balloon: add drop cache support Liang Li
2016-06-13 9:47 ` [PATCH 5/6] mm: add the related functions to get free page info Liang Li
2016-06-13 9:47 ` [PATCH 6/6] virtio-balloon: tell host vm's " Liang Li
2016-06-23 8:27 ` [PATCH 0/6] Fast balloon & fast live migration Li, Liang Z
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