Hi Dexuan, I love your patch! Perhaps something to improve: [auto build test WARNING on net-next/master] url: https://github.com/0day-ci/linux/commits/Dexuan-Cui/net-mana-Add-a-driver-for-Microsoft-Azure-Network-Adapter-MANA/20210407-072552 base: https://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next.git cc0626c2aaed8e475efdd85fa374b497a7192e35 config: arc-allyesconfig (attached as .config) compiler: arceb-elf-gcc (GCC) 9.3.0 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/f086d8bc693c2686de24a81398e49496ab3747a9 git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Dexuan-Cui/net-mana-Add-a-driver-for-Microsoft-Azure-Network-Adapter-MANA/20210407-072552 git checkout f086d8bc693c2686de24a81398e49496ab3747a9 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=arc 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/net/ethernet/microsoft/mana/hw_channel.c: In function 'hwc_post_rx_wqe': drivers/net/ethernet/microsoft/mana/hw_channel.c:88:17: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] 88 | sge->address = (u64)req->buf_sge_addr; | ^ drivers/net/ethernet/microsoft/mana/hw_channel.c: In function 'hwc_alloc_dma_buf': >> drivers/net/ethernet/microsoft/mana/hw_channel.c:426:12: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] 426 | base_pa = (u8 *)dma_buf->mem_info.dma_handle; | ^ drivers/net/ethernet/microsoft/mana/hw_channel.c: In function 'hwc_post_tx_wqe': drivers/net/ethernet/microsoft/mana/hw_channel.c:542:17: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] 542 | sge->address = (u64)req->buf_sge_addr; | ^ Kconfig warnings: (for reference only) WARNING: unmet direct dependencies detected for PCI_HYPERV Depends on PCI && X86_64 && HYPERV && PCI_MSI && PCI_MSI_IRQ_DOMAIN && SYSFS Selected by - MICROSOFT_MANA && NETDEVICES && ETHERNET && NET_VENDOR_MICROSOFT && PCI_MSI vim +426 drivers/net/ethernet/microsoft/mana/hw_channel.c 394 395 static int hwc_alloc_dma_buf(struct hw_channel_context *hwc, u16 q_depth, 396 u32 max_msg_size, struct hwc_dma_buf **dma_buf_p) 397 { 398 struct gdma_context *gc = gdma_dev_to_context(hwc->gdma_dev); 399 struct gdma_mem_info *gmi; 400 struct hwc_work_request *hwc_wr; 401 struct hwc_dma_buf *dma_buf; 402 u32 buf_size; 403 void *virt_addr; 404 u8 *base_pa; 405 int err; 406 u16 i; 407 408 dma_buf = kzalloc(sizeof(*dma_buf) + 409 q_depth * sizeof(struct hwc_work_request), 410 GFP_KERNEL); 411 if (!dma_buf) 412 return -ENOMEM; 413 414 dma_buf->num_reqs = q_depth; 415 416 buf_size = ALIGN(q_depth * max_msg_size, PAGE_SIZE); 417 418 gmi = &dma_buf->mem_info; 419 err = gdma_alloc_memory(gc, buf_size, gmi); 420 if (err) { 421 pr_err("Failed to allocate dma buffer: %d\n", err); 422 goto out; 423 } 424 425 virt_addr = dma_buf->mem_info.virt_addr; > 426 base_pa = (u8 *)dma_buf->mem_info.dma_handle; 427 428 for (i = 0; i < q_depth; i++) { 429 hwc_wr = &dma_buf->reqs[i]; 430 431 hwc_wr->buf_va = virt_addr + i * max_msg_size; 432 hwc_wr->buf_sge_addr = base_pa + i * max_msg_size; 433 434 hwc_wr->buf_len = max_msg_size; 435 } 436 437 *dma_buf_p = dma_buf; 438 return 0; 439 out: 440 kfree(dma_buf); 441 return err; 442 } 443 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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