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From: kbuild test robot <lkp@intel.com>
To: Jason Wang <jasowang@redhat.com>
Cc: kbuild-all@lists.01.org, mst@redhat.com, jasowang@redhat.com,
	linux-kernel@vger.kernel.org, kvm@vger.kernel.org,
	virtualization@lists.linux-foundation.org,
	netdev@vger.kernel.org, tiwei.bie@intel.com, jgg@mellanox.com,
	maxime.coquelin@redhat.com, cunming.liang@intel.com,
	zhihong.wang@intel.com, rob.miller@broadcom.com,
	xiao.w.wang@intel.com, haotian.wang@sifive.com,
	lingshan.zhu@intel.com, eperezma@redhat.com, lulu@redhat.com,
	parav@mellanox.com, kevin.tian@intel.com, stefanha@redhat.com,
	rdunlap@infradead.org, hch@infradead.org, aadam@redhat.com,
	jakub.kicinski@netronome.com, jiri@mellanox.com,
	shahafs@mellanox.com, hanand@xilinx.com, mhabets@solarflare.com
Subject: Re: [PATCH 2/5] vringh: IOTLB support
Date: Sat, 18 Jan 2020 06:33:38 +0800
Message-ID: <202001180622.NhhdCGp5%lkp@intel.com> (raw)
In-Reply-To: <20200116124231.20253-3-jasowang@redhat.com>


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Hi Jason,

I love your patch! Perhaps something to improve:

[auto build test WARNING on vhost/linux-next]
[also build test WARNING on linux/master linus/master v5.5-rc6 next-20200117]
[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/Jason-Wang/vDPA-support/20200117-170243
base:   https://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost.git linux-next
config: sh-randconfig-a001-20200117 (attached as .config)
compiler: sh4-linux-gcc (GCC) 7.5.0
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=7.5.0 make.cross ARCH=sh 

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

All warnings (new ones prefixed by >>):

   drivers/vhost/vringh.c: In function 'copy_from_iotlb':
>> drivers/vhost/vringh.c:1110:29: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
     ret = iotlb_translate(vrh, (u64)src, len, iov, 16, VHOST_MAP_RO);
                                ^
   drivers/vhost/vringh.c: In function 'copy_to_iotlb':
   drivers/vhost/vringh.c:1128:29: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
     ret = iotlb_translate(vrh, (u64)dst, len, iov, 16, VHOST_MAP_WO);
                                ^
   drivers/vhost/vringh.c: In function 'getu16_iotlb':
   drivers/vhost/vringh.c:1145:29: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
     ret = iotlb_translate(vrh, (u64)p, sizeof(*p),
                                ^
   drivers/vhost/vringh.c: In function 'putu16_iotlb':
   drivers/vhost/vringh.c:1166:29: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
     ret = iotlb_translate(vrh, (u64)p, sizeof(*p),
                                ^

vim +1110 drivers/vhost/vringh.c

  1102	
  1103	static inline int copy_from_iotlb(const struct vringh *vrh, void *dst,
  1104					  void *src, size_t len)
  1105	{
  1106		struct iov_iter iter;
  1107		struct bio_vec iov[16];
  1108		int ret;
  1109	
> 1110		ret = iotlb_translate(vrh, (u64)src, len, iov, 16, VHOST_MAP_RO);
  1111		if (ret < 0)
  1112			return ret;
  1113	
  1114		iov_iter_bvec(&iter, READ, iov, ret, len);
  1115	
  1116		ret = copy_from_iter(dst, len, &iter);
  1117	
  1118		return ret;
  1119	}
  1120	

---
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 index

Thread overview: 76+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-01-16 12:42 [PATCH 0/5] vDPA support Jason Wang
2020-01-16 12:42 ` [PATCH 1/5] vhost: factor out IOTLB Jason Wang
2020-01-17  4:14   ` Randy Dunlap
2020-01-17  9:34     ` Jason Wang
2020-01-18  0:01   ` kbuild test robot
2020-01-18  0:40   ` kbuild test robot
2020-01-16 12:42 ` [PATCH 2/5] vringh: IOTLB support Jason Wang
2020-01-17 21:54   ` kbuild test robot
2020-01-17 22:33   ` kbuild test robot [this message]
2020-01-16 12:42 ` [PATCH 3/5] vDPA: introduce vDPA bus Jason Wang
2020-01-16 15:22   ` Jason Gunthorpe
2020-01-17  3:03     ` Jason Wang
2020-01-17 13:54       ` Jason Gunthorpe
2020-01-20  7:50         ` Jason Wang
2020-01-20 12:17         ` Michael S. Tsirkin
2020-01-20 17:50           ` Jason Gunthorpe
2020-01-20 21:56             ` Michael S. Tsirkin
2020-01-21 14:12               ` Jason Gunthorpe
2020-01-21 14:15                 ` Michael S. Tsirkin
2020-01-21 14:16                   ` Jason Gunthorpe
2020-01-21  8:40       ` Tian, Kevin
2020-01-21  9:41         ` Jason Wang
2020-01-17  4:16   ` Randy Dunlap
2020-01-17  9:34     ` Jason Wang
2020-01-17 12:13   ` Michael S. Tsirkin
2020-01-17 13:52     ` Jason Wang
     [not found]       ` <CAJPjb1+fG9L3=iKbV4Vn13VwaeDZZdcfBPvarogF_Nzhk+FnKg@mail.gmail.com>
2020-01-19  9:07         ` Shahaf Shuler
2020-01-19  9:59           ` Michael S. Tsirkin
2020-01-20  8:44             ` Jason Wang
2020-01-20 12:09               ` Michael S. Tsirkin
2020-01-21  3:32                 ` Jason Wang
2020-01-20  8:43           ` Jason Wang
2020-01-20 17:49             ` Jason Gunthorpe
2020-01-20 20:51               ` Shahaf Shuler
2020-01-20 21:25                 ` Michael S. Tsirkin
2020-01-20 21:47                   ` Shahaf Shuler
2020-01-20 21:59                     ` Michael S. Tsirkin
2020-01-21  6:01                       ` Shahaf Shuler
2020-01-21  7:57                         ` Jason Wang
2020-01-21 14:07                   ` Jason Gunthorpe
2020-01-21 14:16                     ` Michael S. Tsirkin
2020-01-20 21:48               ` Michael S. Tsirkin
2020-01-21  4:00               ` Jason Wang
2020-01-21  5:47                 ` Michael S. Tsirkin
2020-01-21  8:00                   ` Jason Wang
2020-01-21  8:15                     ` Michael S. Tsirkin
2020-01-21  8:35                       ` Jason Wang
2020-01-21 11:09                         ` Shahaf Shuler
2020-01-22  6:36                           ` Jason Wang
2020-01-21 14:05                       ` Jason Gunthorpe
2020-01-21 14:17                         ` Michael S. Tsirkin
2020-01-22  6:18                           ` Jason Wang
2020-01-20  8:19         ` Jason Wang
2020-01-16 12:42 ` [PATCH 4/5] virtio: introduce a vDPA based transport Jason Wang
2020-01-16 15:38   ` Jason Gunthorpe
2020-01-17  9:32     ` Jason Wang
2020-01-17 14:00       ` Jason Gunthorpe
2020-01-20  7:52         ` Jason Wang
2020-01-17  4:10   ` Randy Dunlap
2020-01-16 12:42 ` [PATCH 5/5] vdpasim: vDPA device simulator Jason Wang
2020-01-16 15:47   ` Jason Gunthorpe
2020-01-17  9:32     ` Jason Wang
2020-01-17 14:10       ` Jason Gunthorpe
2020-01-20  8:01         ` Jason Wang
2020-02-04  4:19         ` Jason Wang
2020-01-17  4:12   ` Randy Dunlap
2020-01-17  9:35     ` Jason Wang
2020-01-18 18:18   ` kbuild test robot
2020-01-28  3:32   ` Dan Carpenter
2020-02-04  4:07     ` Jason Wang
2020-02-04  8:21   ` Zhu Lingshan
2020-02-04  8:28     ` Jason Wang
2020-02-04 12:52       ` Jason Gunthorpe
2020-02-05  3:14         ` Jason Wang
2020-01-21  8:44 ` [PATCH 0/5] vDPA support Tian, Kevin
2020-01-21  9:39   ` Jason Wang

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