tree: https://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost.git vhost head: 43ab8a34f3f0c7301813343b9fed2da33c37754a commit: 71545b3c933acbf165e6596d5cfa4fd15e1ef543 [5/8] virtio: Revert "virtio: find_vqs() add arg sizes" config: i386-buildonly-randconfig-r004-20220815 (https://download.01.org/0day-ci/archive/20220816/202208161151.sMYdFPvS-lkp@xxxxxxxxx/config) compiler: gcc-11 (Debian 11.3.0-5) 11.3.0 reproduce (this is a W=1 build): # https://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost.git/commit/?id=71545b3c933acbf165e6596d5cfa4fd15e1ef543 git remote add mst-vhost https://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost.git git fetch --no-tags mst-vhost vhost git checkout 71545b3c933acbf165e6596d5cfa4fd15e1ef543 # save the config file mkdir build_dir && cp config build_dir/.config make W=1 O=build_dir ARCH=i386 SHELL=/bin/bash drivers/virtio/ If you fix the issue, kindly add following tag where applicable Reported-by: kernel test robot <lkp@xxxxxxxxx> All errors (new ones prefixed by >>): drivers/virtio/virtio_vdpa.c: In function 'virtio_vdpa_find_vqs': >> drivers/virtio/virtio_vdpa.c:291:61: error: 'sizes' undeclared (first use in this function) 291 | names[i], sizes ? sizes[i] : 0, | ^~~~~ drivers/virtio/virtio_vdpa.c:291:61: note: each undeclared identifier is reported only once for each function it appears in vim +/sizes +291 drivers/virtio/virtio_vdpa.c c043b4a8cf3b16 Jason Wang 2020-03-26 270 3153234097f6a0 Solomon Tan 2022-04-18 271 static int virtio_vdpa_find_vqs(struct virtio_device *vdev, unsigned int nvqs, c043b4a8cf3b16 Jason Wang 2020-03-26 272 struct virtqueue *vqs[], c043b4a8cf3b16 Jason Wang 2020-03-26 273 vq_callback_t *callbacks[], c043b4a8cf3b16 Jason Wang 2020-03-26 274 const char * const names[], c043b4a8cf3b16 Jason Wang 2020-03-26 275 const bool *ctx, c043b4a8cf3b16 Jason Wang 2020-03-26 276 struct irq_affinity *desc) c043b4a8cf3b16 Jason Wang 2020-03-26 277 { c043b4a8cf3b16 Jason Wang 2020-03-26 278 struct virtio_vdpa_device *vd_dev = to_virtio_vdpa_device(vdev); c043b4a8cf3b16 Jason Wang 2020-03-26 279 struct vdpa_device *vdpa = vd_get_vdpa(vdev); c043b4a8cf3b16 Jason Wang 2020-03-26 280 const struct vdpa_config_ops *ops = vdpa->config; c043b4a8cf3b16 Jason Wang 2020-03-26 281 struct vdpa_callback cb; c043b4a8cf3b16 Jason Wang 2020-03-26 282 int i, err, queue_idx = 0; c043b4a8cf3b16 Jason Wang 2020-03-26 283 c043b4a8cf3b16 Jason Wang 2020-03-26 284 for (i = 0; i < nvqs; ++i) { c043b4a8cf3b16 Jason Wang 2020-03-26 285 if (!names[i]) { c043b4a8cf3b16 Jason Wang 2020-03-26 286 vqs[i] = NULL; c043b4a8cf3b16 Jason Wang 2020-03-26 287 continue; c043b4a8cf3b16 Jason Wang 2020-03-26 288 } c043b4a8cf3b16 Jason Wang 2020-03-26 289 99e8927d8a4da8 Bo Liu 2022-08-10 290 vqs[i] = virtio_vdpa_setup_vq(vdev, queue_idx++, callbacks[i], 99e8927d8a4da8 Bo Liu 2022-08-10 @291 names[i], sizes ? sizes[i] : 0, 99e8927d8a4da8 Bo Liu 2022-08-10 292 ctx ? ctx[i] : false); c043b4a8cf3b16 Jason Wang 2020-03-26 293 if (IS_ERR(vqs[i])) { c043b4a8cf3b16 Jason Wang 2020-03-26 294 err = PTR_ERR(vqs[i]); c043b4a8cf3b16 Jason Wang 2020-03-26 295 goto err_setup_vq; c043b4a8cf3b16 Jason Wang 2020-03-26 296 } c043b4a8cf3b16 Jason Wang 2020-03-26 297 } c043b4a8cf3b16 Jason Wang 2020-03-26 298 c043b4a8cf3b16 Jason Wang 2020-03-26 299 cb.callback = virtio_vdpa_config_cb; c043b4a8cf3b16 Jason Wang 2020-03-26 300 cb.private = vd_dev; c043b4a8cf3b16 Jason Wang 2020-03-26 301 ops->set_config_cb(vdpa, &cb); c043b4a8cf3b16 Jason Wang 2020-03-26 302 c043b4a8cf3b16 Jason Wang 2020-03-26 303 return 0; c043b4a8cf3b16 Jason Wang 2020-03-26 304 c043b4a8cf3b16 Jason Wang 2020-03-26 305 err_setup_vq: c043b4a8cf3b16 Jason Wang 2020-03-26 306 virtio_vdpa_del_vqs(vdev); c043b4a8cf3b16 Jason Wang 2020-03-26 307 return err; c043b4a8cf3b16 Jason Wang 2020-03-26 308 } c043b4a8cf3b16 Jason Wang 2020-03-26 309 :::::: The code at line 291 was first introduced by commit :::::: 99e8927d8a4da8eb8a8a5904dc13a3156be8e7c0 virtio_vdpa: support the arg sizes of find_vqs() :::::: TO: Bo Liu <liubo03@xxxxxxxxxx> :::::: CC: Michael S. Tsirkin <mst@xxxxxxxxxx> -- 0-DAY CI Kernel Test Service https://01.org/lkp