tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 2734d6c1b1a089fb593ef6a23d4b70903526fe0c commit: a57e5de476be0b4b7f42beb6a21c19ad9c577aa3 gve: DQO: Add TX path date: 3 weeks ago config: i386-randconfig-r035-20210719 (attached as .config) compiler: gcc-10 (Ubuntu 10.3.0-1ubuntu1~20.04) 10.3.0 reproduce (this is a W=1 build): # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit... git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout a57e5de476be0b4b7f42beb6a21c19ad9c577aa3 # save the attached .config to linux build tree make W=1 ARCH=i386 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All warnings (new ones prefixed by >>): drivers/net/ethernet/google/gve/gve_tx_dqo.c: In function 'gve_tx_clean_pending_packets': drivers/net/ethernet/google/gve/gve_tx_dqo.c:88:27: warning: unused variable 'buf' [-Wunused-variable] 88 | struct gve_tx_dma_buf *buf = &cur_state->bufs[j]; | ^~~ drivers/net/ethernet/google/gve/gve_tx_dqo.c: In function 'gve_tx_add_skb_no_copy_dqo': drivers/net/ethernet/google/gve/gve_tx_dqo.c:496:26: warning: unused variable 'buf' [-Wunused-variable] 496 | struct gve_tx_dma_buf *buf = | ^~~ drivers/net/ethernet/google/gve/gve_tx_dqo.c:515:26: warning: unused variable 'buf' [-Wunused-variable] 515 | struct gve_tx_dma_buf *buf = | ^~~ drivers/net/ethernet/google/gve/gve_tx_dqo.c:556:26: warning: unused variable 'buf' [-Wunused-variable] 556 | struct gve_tx_dma_buf *buf = &pending_packet->bufs[i]; | ^~~ drivers/net/ethernet/google/gve/gve_tx_dqo.c: In function 'remove_from_list': drivers/net/ethernet/google/gve/gve_tx_dqo.c:730:6: warning: variable 'index' set but not used [-Wunused-but-set-variable] 730 | s16 index, prev_index, next_index; | ^~~~~ drivers/net/ethernet/google/gve/gve_tx_dqo.c: In function 'gve_unmap_packet': 753 | struct gve_tx_dma_buf *buf; | ^~~ In file included from include/linux/printk.h:7, from include/linux/kernel.h:17, from arch/x86/include/asm/percpu.h:27, from arch/x86/include/asm/current.h:6, from include/linux/sched.h:12, from include/linux/ratelimit.h:6, from include/linux/dev_printk.h:16, from include/linux/device.h:15, from include/linux/dma-mapping.h:7, from drivers/net/ethernet/google/gve/gve.h:10, from drivers/net/ethernet/google/gve/gve_tx_dqo.c:7: drivers/net/ethernet/google/gve/gve_tx_dqo.c: In function 'remove_miss_completions': include/linux/kern_levels.h:5:18: warning: format '%ld' expects argument of type 'long int', but argument 3 has type 'int' [-Wformat=] 5 | #define KERN_SOH "\001" /* ASCII Start Of Header */ | ^~~~~~ include/linux/kern_levels.h:11:18: note: in expansion of macro 'KERN_SOH' 11 | #define KERN_ERR KERN_SOH "3" /* error conditions */ | ^~~~~~~~ include/linux/printk.h:343:9: note: in expansion of macro 'KERN_ERR' 343 | printk(KERN_ERR pr_fmt(fmt), ##__VA_ARGS__) | ^~~~~~~~ include/linux/net.h:247:3: note: in expansion of macro 'pr_err' 247 | function(__VA_ARGS__); \ | ^~~~~~~~ include/linux/net.h:257:2: note: in expansion of macro 'net_ratelimited_function' 257 | net_ratelimited_function(pr_err, fmt, ##__VA_ARGS__) | ^~~~~~~~~~~~~~~~~~~~~~~~ drivers/net/ethernet/google/gve/gve_tx_dqo.c:893:3: note: in expansion of macro 'net_err_ratelimited' 893 | net_err_ratelimited("%s: No reinjection completion was received for: %ld.\n", | ^~~~~~~~~~~~~~~~~~~ vim +/buf +753 drivers/net/ethernet/google/gve/gve_tx_dqo.c 749 750 static void gve_unmap_packet(struct device *dev, 751 struct gve_tx_pending_packet_dqo *pending_packet) 752 { 754 int i; 755 756 /* SKB linear portion is guaranteed to be mapped */ 757 buf = &pending_packet->bufs[0]; 758 dma_unmap_single(dev, dma_unmap_addr(buf, dma), 759 dma_unmap_len(buf, len), DMA_TO_DEVICE); 760 for (i = 1; i < pending_packet->num_bufs; i++) { 761 buf = &pending_packet->bufs[i]; 762 dma_unmap_page(dev, dma_unmap_addr(buf, dma), 763 dma_unmap_len(buf, len), DMA_TO_DEVICE); 764 } 765 pending_packet->num_bufs = 0; 766 } 767 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org