Hi Xuan, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on horms-ipvs/master] [also build test WARNING on linus/master v5.15-rc7 next-20211027] [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] url: https://github.com/0day-ci/linux/commits/Xuan-Zhuo/virtio-support-cache-indirect-desc/20211027-142025 base: https://git.kernel.org/pub/scm/linux/kernel/git/horms/ipvs.git master config: arm-defconfig (attached as .config) compiler: arm-linux-gnueabi-gcc (GCC) 11.2.0 reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # https://github.com/0day-ci/linux/commit/8935e116c155fb7d484bad35a42b2ca98f75e384 git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Xuan-Zhuo/virtio-support-cache-indirect-desc/20211027-142025 git checkout 8935e116c155fb7d484bad35a42b2ca98f75e384 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross ARCH=arm If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All warnings (new ones prefixed by >>): drivers/virtio/virtio_ring.c: In function 'desc_cache_chain_free_split': >> drivers/virtio/virtio_ring.c:438:25: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] 438 | chain = (void *)desc->addr; | ^ drivers/virtio/virtio_ring.c: In function 'desc_cache_put_split': >> drivers/virtio/virtio_ring.c:447:30: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] 447 | desc->addr = (u64)vq->desc_cache_chain; | ^ drivers/virtio/virtio_ring.c: In function 'alloc_indirect_split': drivers/virtio/virtio_ring.c:464:48: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] 464 | vq->desc_cache_chain = (void *)desc->addr; | ^ vim +438 drivers/virtio/virtio_ring.c 431 432 static void desc_cache_chain_free_split(void *chain) 433 { 434 struct vring_desc *desc; 435 436 while (chain) { 437 desc = chain; > 438 chain = (void *)desc->addr; 439 kfree(desc); 440 } 441 } 442 443 static void desc_cache_put_split(struct vring_virtqueue *vq, 444 struct vring_desc *desc, int n) 445 { 446 if (vq->use_desc_cache && n <= VIRT_QUEUE_CACHE_DESC_NUM) { > 447 desc->addr = (u64)vq->desc_cache_chain; 448 vq->desc_cache_chain = desc; 449 } else { 450 kfree(desc); 451 } 452 } 453 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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