Re: [PATCH 3/3] vhost: device IOTLB API

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Hi,

[auto build test ERROR on next-20160622]
[also build test ERROR on v4.7-rc4]
[cannot apply to vhost/linux-next v4.7-rc4 v4.7-rc3 v4.7-rc2]
[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/Jason-Wang/basic-device-IOTLB-support/20160622-175522
config: i386-allmodconfig (attached as .config)
compiler: gcc-6 (Debian 6.1.1-1) 6.1.1 20160430
reproduce:
        # save the attached .config to linux build tree
        make ARCH=i386 

All error/warnings (new ones prefixed by >>):

   gcc-6: warning: '-mcpu=' is deprecated; use '-mtune=' or '-march=' instead
   drivers/vhost/vhost.c: In function 'vhost_copy_to_user':
>> drivers/vhost/vhost.c:742:28: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
      ret = translate_desc(vq, (u64)to, size, vq->iotlb_iov,
                               ^
   drivers/vhost/vhost.c: In function 'vhost_copy_from_user':
   drivers/vhost/vhost.c:771:28: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
      ret = translate_desc(vq, (u64)from, size, vq->iotlb_iov,
                               ^
   In file included from include/linux/printk.h:289:0,
                    from include/linux/kernel.h:13,
                    from include/linux/list.h:8,
                    from include/linux/wait.h:6,
                    from include/linux/eventfd.h:12,
                    from drivers/vhost/vhost.c:14:
   drivers/vhost/vhost.c:777:11: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
              (unsigned long long) from,
              ^
   include/linux/dynamic_debug.h:127:10: note: in definition of macro 'dynamic_pr_debug'
           ##__VA_ARGS__);  \
             ^~~~~~~~~~~
>> drivers/vhost/vhost.h:220:3: note: in expansion of macro 'pr_debug'
      pr_debug(pr_fmt(fmt), ##__VA_ARGS__);       \
      ^~~~~~~~
>> drivers/vhost/vhost.c:775:4: note: in expansion of macro 'vq_err'
       vq_err(vq, "IOTLB translation failure: uaddr "
       ^~~~~~
   drivers/vhost/vhost.c: In function '__vhost_get_user':
   drivers/vhost/vhost.c:802:27: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
     ret = translate_desc(vq, (u64)addr, size, vq->iotlb_iov,
                              ^
   In file included from include/linux/printk.h:289:0,
                    from include/linux/kernel.h:13,
                    from include/linux/list.h:8,
                    from include/linux/wait.h:6,
                    from include/linux/eventfd.h:12,
                    from drivers/vhost/vhost.c:14:
   drivers/vhost/vhost.c:808:4: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
       (unsigned long long) addr,
       ^
   include/linux/dynamic_debug.h:127:10: note: in definition of macro 'dynamic_pr_debug'
           ##__VA_ARGS__);  \
             ^~~~~~~~~~~
>> drivers/vhost/vhost.h:220:3: note: in expansion of macro 'pr_debug'
      pr_debug(pr_fmt(fmt), ##__VA_ARGS__);       \
      ^~~~~~~~
   drivers/vhost/vhost.c:806:3: note: in expansion of macro 'vq_err'
      vq_err(vq, "IOTLB translation failure: uaddr "
      ^~~~~~
   drivers/vhost/vhost.c:816:4: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
       (unsigned long long) addr,
       ^
   include/linux/dynamic_debug.h:127:10: note: in definition of macro 'dynamic_pr_debug'
           ##__VA_ARGS__);  \
             ^~~~~~~~~~~
>> drivers/vhost/vhost.h:220:3: note: in expansion of macro 'pr_debug'
      pr_debug(pr_fmt(fmt), ##__VA_ARGS__);       \
      ^~~~~~~~
   drivers/vhost/vhost.c:814:3: note: in expansion of macro 'vq_err'
      vq_err(vq, "Non atomic userspace memory access: uaddr "
      ^~~~~~
   drivers/vhost/vhost.c: In function 'vq_iotlb_prefetch':
   drivers/vhost/vhost.c:1144:46: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
     return iotlb_access_ok(vq, VHOST_ACCESS_RO, (u64)vq->desc,
                                                 ^
   drivers/vhost/vhost.c:1146:46: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
            iotlb_access_ok(vq, VHOST_ACCESS_RO, (u64)vq->avail,
                                                 ^
   drivers/vhost/vhost.c:1149:46: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
            iotlb_access_ok(vq, VHOST_ACCESS_WO, (u64)vq->used,
                                                 ^
   In file included from include/linux/printk.h:289:0,
                    from include/linux/kernel.h:13,
                    from include/linux/list.h:8,
                    from include/linux/wait.h:6,
                    from include/linux/eventfd.h:12,
                    from drivers/vhost/vhost.c:14:
   drivers/vhost/vhost.c: In function 'vhost_vq_init_access':
   drivers/vhost/vhost.c:1737:4: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
       (unsigned long long) &vq->used->idx);
       ^
   include/linux/dynamic_debug.h:127:10: note: in definition of macro 'dynamic_pr_debug'
           ##__VA_ARGS__);  \
             ^~~~~~~~~~~
>> drivers/vhost/vhost.h:220:3: note: in expansion of macro 'pr_debug'
      pr_debug(pr_fmt(fmt), ##__VA_ARGS__);       \
      ^~~~~~~~
   drivers/vhost/vhost.c:1736:3: note: in expansion of macro 'vq_err'
      vq_err(vq, "Can't access used idx at 0x%llx\n",
      ^~~~~~
   gcc-6: warning: '-mcpu=' is deprecated; use '-mtune=' or '-march=' instead
--
   gcc-6: warning: '-mcpu=' is deprecated; use '-mtune=' or '-march=' instead
   drivers/vhost/scsi.c: In function 'vhost_scsi_do_evt_work':
>> drivers/vhost/scsi.c:460:9: error: too few arguments to function 'vhost_get_vq_desc'
     head = vhost_get_vq_desc(vq, vq->iov,
            ^~~~~~~~~~~~~~~~~
   In file included from drivers/vhost/scsi.c:51:0:
   drivers/vhost/vhost.h:181:5: note: declared here
    int vhost_get_vq_desc(struct vhost_virtqueue *,
        ^~~~~~~~~~~~~~~~~
   drivers/vhost/scsi.c: In function 'vhost_scsi_handle_vq':
   drivers/vhost/scsi.c:867:10: error: too few arguments to function 'vhost_get_vq_desc'
      head = vhost_get_vq_desc(vq, vq->iov,
             ^~~~~~~~~~~~~~~~~
   In file included from drivers/vhost/scsi.c:51:0:
   drivers/vhost/vhost.h:181:5: note: declared here
    int vhost_get_vq_desc(struct vhost_virtqueue *,
        ^~~~~~~~~~~~~~~~~

vim +/vhost_get_vq_desc +460 drivers/vhost/scsi.c

a6c9af87 drivers/vhost/tcm_vhost.c Asias He           2013-04-25  454  		vs->vs_events_missed = true;
a6c9af87 drivers/vhost/tcm_vhost.c Asias He           2013-04-25  455  		return;
a6c9af87 drivers/vhost/tcm_vhost.c Asias He           2013-04-25  456  	}
a6c9af87 drivers/vhost/tcm_vhost.c Asias He           2013-04-25  457  
a6c9af87 drivers/vhost/tcm_vhost.c Asias He           2013-04-25  458  again:
a6c9af87 drivers/vhost/tcm_vhost.c Asias He           2013-04-25  459  	vhost_disable_notify(&vs->dev, vq);
47283bef drivers/vhost/scsi.c      Michael S. Tsirkin 2014-06-05 @460  	head = vhost_get_vq_desc(vq, vq->iov,
a6c9af87 drivers/vhost/tcm_vhost.c Asias He           2013-04-25  461  			ARRAY_SIZE(vq->iov), &out, &in,
a6c9af87 drivers/vhost/tcm_vhost.c Asias He           2013-04-25  462  			NULL, NULL);
a6c9af87 drivers/vhost/tcm_vhost.c Asias He           2013-04-25  463  	if (head < 0) {

:::::: The code at line 460 was first introduced by commit
:::::: 47283bef7ed356629467d1fac61687756e48f254 vhost: move memory pointer to VQs

:::::: TO: Michael S. Tsirkin <mst@xxxxxxxxxx>
:::::: CC: Michael S. Tsirkin <mst@xxxxxxxxxx>

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

Attachment: .config.gz
Description: Binary data

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