Hi Xuan, kernel test robot noticed the following build warnings:
[auto build test WARNING on linus/master] [also build test WARNING on v6.6-rc5 next-20231013] [cannot apply to mst-vhost/linux-next] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/Xuan-Zhuo/virtio_ring-virtqueue_set_dma_premapped-support-disable/20231011-180709 base: linus/master patch link: https://lore.kernel.org/r/20231011092728.105904-12-xuanzhuo%40linux.alibaba.com patch subject: [PATCH vhost 11/22] virtio_net: sq support premapped mode config: parisc-randconfig-001-20231013 (https://download.01.org/0day-ci/archive/20231013/202310131711.qjbkiwe0-...@intel.com/config) compiler: hppa-linux-gcc (GCC) 13.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231013/202310131711.qjbkiwe0-...@intel.com/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <l...@intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202310131711.qjbkiwe0-...@intel.com/ All warnings (new ones prefixed by >>): In file included from drivers/net/virtio/main.c:25: drivers/net/virtio/virtio_net.h: In function 'virtnet_sq_unmap': >> drivers/net/virtio/virtio_net.h:235:25: warning: cast from pointer to >> integer of different size [-Wpointer-to-int-cast] 235 | head = (void *)((u64)data & ~VIRTIO_XMIT_DATA_MASK); | ^ >> drivers/net/virtio/virtio_net.h:235:16: warning: cast to pointer from >> integer of different size [-Wint-to-pointer-cast] 235 | head = (void *)((u64)data & ~VIRTIO_XMIT_DATA_MASK); | ^ drivers/net/virtio/main.c: In function 'virtnet_sq_map_sg': >> drivers/net/virtio/main.c:600:25: warning: cast from pointer to integer of >> different size [-Wpointer-to-int-cast] 600 | return (void *)((u64)head | ((u64)data & VIRTIO_XMIT_DATA_MASK)); | ^ drivers/net/virtio/main.c:600:38: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] 600 | return (void *)((u64)head | ((u64)data & VIRTIO_XMIT_DATA_MASK)); | ^ >> drivers/net/virtio/main.c:600:16: warning: cast to pointer from integer of >> different size [-Wint-to-pointer-cast] 600 | return (void *)((u64)head | ((u64)data & VIRTIO_XMIT_DATA_MASK)); | ^ drivers/net/virtio/main.c: In function 'virtnet_find_vqs': drivers/net/virtio/main.c:3977:48: warning: '%d' directive writing between 1 and 11 bytes into a region of size 10 [-Wformat-overflow=] 3977 | sprintf(vi->rq[i].name, "input.%d", i); | ^~ drivers/net/virtio/main.c:3977:41: note: directive argument in the range [-2147483641, 65534] 3977 | sprintf(vi->rq[i].name, "input.%d", i); | ^~~~~~~~~~ drivers/net/virtio/main.c:3977:17: note: 'sprintf' output between 8 and 18 bytes into a destination of size 16 3977 | sprintf(vi->rq[i].name, "input.%d", i); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/net/virtio/main.c:3978:49: warning: '%d' directive writing between 1 and 11 bytes into a region of size 9 [-Wformat-overflow=] 3978 | sprintf(vi->sq[i].name, "output.%d", i); | ^~ drivers/net/virtio/main.c:3978:41: note: directive argument in the range [-2147483641, 65534] 3978 | sprintf(vi->sq[i].name, "output.%d", i); | ^~~~~~~~~~~ drivers/net/virtio/main.c:3978:17: note: 'sprintf' output between 9 and 19 bytes into a destination of size 16 3978 | sprintf(vi->sq[i].name, "output.%d", i); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ vim +235 drivers/net/virtio/virtio_net.h 230 231 static inline void *virtnet_sq_unmap(struct virtnet_sq *sq, void *data) 232 { 233 struct virtnet_sq_dma *next, *head; 234 > 235 head = (void *)((u64)data & ~VIRTIO_XMIT_DATA_MASK); 236 237 data = head->data; 238 239 while (head) { 240 virtqueue_dma_unmap_page_attrs(sq->vq, head->addr, head->len, DMA_TO_DEVICE, 0); 241 242 next = head->next; 243 244 head->next = sq->dmainfo.free; 245 sq->dmainfo.free = head; 246 247 head = next; 248 } 249 250 return data; 251 } 252 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki _______________________________________________ Virtualization mailing list Virtualization@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/virtualization
