Hi Jason, [auto build test WARNING on vhost/linux-next] [also build test WARNING on v4.9 next-20161214] [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/vhost-introduce-O-1-vq-metadata-cache/20161214-160153 base: https://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost.git linux-next config: i386-randconfig-x005-201650 (attached as .config) compiler: gcc-6 (Debian 6.2.0-3) 6.2.0 20160901 reproduce: # save the attached .config to linux build tree make ARCH=i386 All warnings (new ones prefixed by >>): drivers/vhost/vhost.c: In function 'vhost_vq_meta_fetch': >> drivers/vhost/vhost.c:719:9: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] return (void *)(node->userspace_addr + (u64)addr - node->start); ^ vim +719 drivers/vhost/vhost.c 703 node->start, 704 node->size)) 705 return 0; 706 } 707 return 1; 708 } 709 710 static inline void __user *vhost_vq_meta_fetch(struct vhost_virtqueue *vq, 711 u64 addr, unsigned int size, 712 int type) 713 { 714 const struct vhost_umem_node *node = vq->meta_iotlb[type]; 715 716 if (!node) 717 return NULL; 718 > 719 return (void *)(node->userspace_addr + (u64)addr - node->start); 720 } 721 722 /* Can we switch to this memory table? */ 723 /* Caller should have device mutex but not vq mutex */ 724 static int memory_access_ok(struct vhost_dev *d, struct vhost_umem *umem, 725 int log_all) 726 { 727 int i; --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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