Hi Willem, [auto build test WARNING on net-next/master]
url: https://github.com/0day-ci/linux/commits/Willem-de-Bruijn/vhost_net-do-not-stall-on-zerocopy-depletion/20171001-054709 reproduce: # apt-get install sparse make ARCH=x86_64 allmodconfig make C=1 CF=-D__CHECK_ENDIAN__ sparse warnings: (new ones prefixed by >>) vim +440 drivers/vhost/net.c 433 434 static bool vhost_exceeds_maxpend(struct vhost_net *net) 435 { 436 struct vhost_net_virtqueue *nvq = &net->vqs[VHOST_NET_VQ_TX]; 437 struct vhost_virtqueue *vq = &nvq->vq; 438 439 return (nvq->upend_idx + UIO_MAXIOV - nvq->done_idx) % UIO_MAXIOV > > 440 min(VHOST_MAX_PEND, vq->num >> 2); 441 } 442 --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
