Hi Liang, [auto build test WARNING on linus/master] [also build test WARNING on v4.8-rc1 next-20160805] [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/Extend-virtio-balloon-for-fast-de-inflating-fast-live-migration/20160808-144551 config: s390-default_defconfig (attached as .config) compiler: s390x-linux-gnu-gcc (Debian 5.4.0-6) 5.4.0 20160609 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=s390 All warnings (new ones prefixed by >>): drivers/virtio/virtio_balloon.c: In function 'tell_host': >> drivers/virtio/virtio_balloon.c:188:1: warning: the frame size of 1456 bytes is larger than 1024 bytes [-Wframe-larger-than=] } ^ vim +188 drivers/virtio/virtio_balloon.c 112d1263 Liang Li 2016-08-08 172 msleep(2); 112d1263 Liang Li 2016-08-08 173 if (virtqueue_add_outbuf(vq, sg2, nr_buf, vb, GFP_KERNEL) == 0) 112d1263 Liang Li 2016-08-08 174 virtqueue_kick(vq); 6b35e407 Rusty Russell 2008-02-04 175 112d1263 Liang Li 2016-08-08 176 } else { 6b35e407 Rusty Russell 2008-02-04 177 sg_init_one(&sg, vb->pfns, sizeof(vb->pfns[0]) * vb->num_pfns); 6b35e407 Rusty Russell 2008-02-04 178 112d1263 Liang Li 2016-08-08 179 /* We should always be able to add one buffer to an empty 112d1263 Liang Li 2016-08-08 180 * queue. */ 4951cc90 Rusty Russell 2014-03-13 181 virtqueue_add_outbuf(vq, &sg, 1, vb, GFP_KERNEL); 946cfe0e Michael S. Tsirkin 2010-04-12 182 virtqueue_kick(vq); 112d1263 Liang Li 2016-08-08 183 } 6b35e407 Rusty Russell 2008-02-04 184 6b35e407 Rusty Russell 2008-02-04 185 /* When host has read buffer, this completes via balloon_ack */ 9c378abc Michael S. Tsirkin 2012-07-02 186 wait_event(vb->acked, virtqueue_get_buf(vq, &len)); fd0e21c3 Petr Mladek 2016-01-25 187 6b35e407 Rusty Russell 2008-02-04 @188 } 6b35e407 Rusty Russell 2008-02-04 189 87c9403b Michael S. Tsirkin 2016-05-17 190 static void set_page_pfns(struct virtio_balloon *vb, 87c9403b Michael S. Tsirkin 2016-05-17 191 __virtio32 pfns[], struct page *page) 3ccc9372 Michael S. Tsirkin 2012-04-12 192 { 3ccc9372 Michael S. Tsirkin 2012-04-12 193 unsigned int i; 3ccc9372 Michael S. Tsirkin 2012-04-12 194 3ccc9372 Michael S. Tsirkin 2012-04-12 195 /* Set balloon pfns pointing at this page. 3ccc9372 Michael S. Tsirkin 2012-04-12 196 * Note that the first pfn points at start of the page. */ :::::: The code at line 188 was first introduced by commit :::::: 6b35e40767c6c1ac783330109ae8e0c09ea6bc82 virtio: balloon driver :::::: TO: Rusty Russell <rusty@xxxxxxxxxxxxxxx> :::::: CC: Rusty Russell <rusty@xxxxxxxxxxxxxxx> --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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