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Date: Sat, 11 Jul 2020 16:01:37 +0800
From: kernel test robot <lkp@...el.com>
To: "Michael S. Tsirkin" <mst@...hat.com>
Cc: kbuild-all@...ts.01.org, kvm@...r.kernel.org,
virtualization@...ts.linux-foundation.org, netdev@...r.kernel.org
Subject: [vhost:config-endian 33/36] drivers/vdpa/vdpa_sim/vdpa_sim.c:335:21:
sparse: sparse: incorrect type in assignment (different base types)
tree: https://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost.git config-endian
head: 6aef2378a564fea8e69c0419d94dc3ad9b4b7a99
commit: 0cf222ef876b95893406eebe685e595d88de0950 [33/36] virtio_net: correct tags for config space fields
config: parisc-randconfig-s032-20200710 (attached as .config)
compiler: hppa-linux-gcc (GCC) 9.3.0
reproduce:
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# apt-get install sparse
# sparse version: v0.6.2-37-gc9676a3b-dirty
git checkout 0cf222ef876b95893406eebe685e595d88de0950
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=parisc
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@...el.com>
sparse warnings: (new ones prefixed by >>)
>> drivers/vdpa/vdpa_sim/vdpa_sim.c:335:21: sparse: sparse: incorrect type in assignment (different base types) @@ expected restricted __virtio16 [usertype] mtu @@ got int @@
>> drivers/vdpa/vdpa_sim/vdpa_sim.c:335:21: sparse: expected restricted __virtio16 [usertype] mtu
>> drivers/vdpa/vdpa_sim/vdpa_sim.c:335:21: sparse: got int
>> drivers/vdpa/vdpa_sim/vdpa_sim.c:336:24: sparse: sparse: incorrect type in assignment (different base types) @@ expected restricted __virtio16 [usertype] status @@ got int @@
>> drivers/vdpa/vdpa_sim/vdpa_sim.c:336:24: sparse: expected restricted __virtio16 [usertype] status
drivers/vdpa/vdpa_sim/vdpa_sim.c:336:24: sparse: got int
vim +335 drivers/vdpa/vdpa_sim/vdpa_sim.c
2c53d0f64c06f4 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 306
2c53d0f64c06f4 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 307 static struct vdpasim *vdpasim_create(void)
2c53d0f64c06f4 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 308 {
2c53d0f64c06f4 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 309 struct virtio_net_config *config;
2c53d0f64c06f4 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 310 struct vdpasim *vdpasim;
2c53d0f64c06f4 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 311 struct device *dev;
2c53d0f64c06f4 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 312 int ret = -ENOMEM;
2c53d0f64c06f4 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 313
2c53d0f64c06f4 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 314 vdpasim = vdpa_alloc_device(struct vdpasim, vdpa, NULL,
2c53d0f64c06f4 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 315 &vdpasim_net_config_ops);
2c53d0f64c06f4 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 316 if (!vdpasim)
2c53d0f64c06f4 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 317 goto err_alloc;
2c53d0f64c06f4 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 318
2c53d0f64c06f4 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 319 INIT_WORK(&vdpasim->work, vdpasim_work);
2c53d0f64c06f4 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 320 spin_lock_init(&vdpasim->lock);
2c53d0f64c06f4 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 321
2c53d0f64c06f4 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 322 dev = &vdpasim->vdpa.dev;
2c53d0f64c06f4 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 323 dev->coherent_dma_mask = DMA_BIT_MASK(64);
2c53d0f64c06f4 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 324 set_dma_ops(dev, &vdpasim_dma_ops);
2c53d0f64c06f4 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 325
2c53d0f64c06f4 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 326 vdpasim->iommu = vhost_iotlb_alloc(2048, 0);
2c53d0f64c06f4 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 327 if (!vdpasim->iommu)
2c53d0f64c06f4 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 328 goto err_iommu;
2c53d0f64c06f4 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 329
2c53d0f64c06f4 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 330 vdpasim->buffer = kmalloc(PAGE_SIZE, GFP_KERNEL);
2c53d0f64c06f4 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 331 if (!vdpasim->buffer)
2c53d0f64c06f4 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 332 goto err_iommu;
2c53d0f64c06f4 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 333
2c53d0f64c06f4 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 334 config = &vdpasim->config;
2c53d0f64c06f4 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 @335 config->mtu = 1500;
2c53d0f64c06f4 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 @336 config->status = VIRTIO_NET_S_LINK_UP;
2c53d0f64c06f4 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 337 eth_random_addr(config->mac);
2c53d0f64c06f4 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 338
2c53d0f64c06f4 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 339 vringh_set_iotlb(&vdpasim->vqs[0].vring, vdpasim->iommu);
2c53d0f64c06f4 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 340 vringh_set_iotlb(&vdpasim->vqs[1].vring, vdpasim->iommu);
2c53d0f64c06f4 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 341
2c53d0f64c06f4 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 342 vdpasim->vdpa.dma_dev = dev;
2c53d0f64c06f4 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 343 ret = vdpa_register_device(&vdpasim->vdpa);
2c53d0f64c06f4 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 344 if (ret)
2c53d0f64c06f4 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 345 goto err_iommu;
2c53d0f64c06f4 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 346
2c53d0f64c06f4 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 347 return vdpasim;
2c53d0f64c06f4 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 348
2c53d0f64c06f4 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 349 err_iommu:
2c53d0f64c06f4 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 350 put_device(dev);
2c53d0f64c06f4 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 351 err_alloc:
2c53d0f64c06f4 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 352 return ERR_PTR(ret);
2c53d0f64c06f4 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 353 }
2c53d0f64c06f4 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 354
:::::: The code at line 335 was first introduced by commit
:::::: 2c53d0f64c06f4580588ef16f50f63a112117a02 vdpasim: vDPA device simulator
:::::: TO: Jason Wang <jasowang@...hat.com>
:::::: CC: Michael S. Tsirkin <mst@...hat.com>
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
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