Hi Aleksandr, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on 2ef991b5fdbe828dc8fb8af473dab160729570ed] url: https://github.com/0day-ci/linux/commits/Aleksandr-Nogikh/net-mac80211-kernel-enable-KCOV-remote-coverage-collection-for-802-11-frame-handling/20201026-231134 base: 2ef991b5fdbe828dc8fb8af473dab160729570ed config: x86_64-randconfig-a001-20201026 (attached as .config) compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project f2c25c70791de95d2466e09b5b58fc37f6ccd7a4) 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 # install x86_64 cross compiling tool for clang build # apt-get install binutils-x86-64-linux-gnu # https://github.com/0day-ci/linux/commit/46d348800b64931071128ba47a5f17641d288a2f git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Aleksandr-Nogikh/net-mac80211-kernel-enable-KCOV-remote-coverage-collection-for-802-11-frame-handling/20201026-231134 git checkout 46d348800b64931071128ba47a5f17641d288a2f # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All warnings (new ones prefixed by >>): In file included from drivers/vdpa/vdpa_sim/vdpa_sim.c:24: In file included from include/linux/etherdevice.h:20: In file included from include/linux/if_ether.h:19: include/linux/skbuff.h:4617:26: error: implicit declaration of function 'skb_ext_add' [-Werror,-Wimplicit-function-declaration] u64 *kcov_handle_ptr = skb_ext_add(skb, SKB_EXT_KCOV_HANDLE); ^ include/linux/skbuff.h:4617:43: error: use of undeclared identifier 'SKB_EXT_KCOV_HANDLE' u64 *kcov_handle_ptr = skb_ext_add(skb, SKB_EXT_KCOV_HANDLE); ^ include/linux/skbuff.h:4626:21: error: implicit declaration of function 'skb_ext_find' [-Werror,-Wimplicit-function-declaration] u64 *kcov_handle = skb_ext_find(skb, SKB_EXT_KCOV_HANDLE); ^ include/linux/skbuff.h:4626:39: error: use of undeclared identifier 'SKB_EXT_KCOV_HANDLE' u64 *kcov_handle = skb_ext_find(skb, SKB_EXT_KCOV_HANDLE); ^ >> drivers/vdpa/vdpa_sim/vdpa_sim.c:364:27: warning: shift count >= width of type [-Wshift-count-overflow] dev->coherent_dma_mask = DMA_BIT_MASK(64); ^~~~~~~~~~~~~~~~ include/linux/dma-mapping.h:76:54: note: expanded from macro 'DMA_BIT_MASK' #define DMA_BIT_MASK(n) (((n) == 64) ? ~0ULL : ((1ULL<<(n))-1)) ^ ~~~ 1 warning and 4 errors generated. -- In file included from drivers/net/ethernet/intel/e1000/e1000_main.c:4: In file included from drivers/net/ethernet/intel/e1000/e1000.h:18: In file included from include/linux/netdevice.h:37: In file included from include/linux/ethtool.h:18: In file included from include/uapi/linux/ethtool.h:19: In file included from include/linux/if_ether.h:19: include/linux/skbuff.h:4617:26: error: implicit declaration of function 'skb_ext_add' [-Werror,-Wimplicit-function-declaration] u64 *kcov_handle_ptr = skb_ext_add(skb, SKB_EXT_KCOV_HANDLE); ^ include/linux/skbuff.h:4617:43: error: use of undeclared identifier 'SKB_EXT_KCOV_HANDLE' u64 *kcov_handle_ptr = skb_ext_add(skb, SKB_EXT_KCOV_HANDLE); ^ include/linux/skbuff.h:4626:21: error: implicit declaration of function 'skb_ext_find' [-Werror,-Wimplicit-function-declaration] u64 *kcov_handle = skb_ext_find(skb, SKB_EXT_KCOV_HANDLE); ^ include/linux/skbuff.h:4626:39: error: use of undeclared identifier 'SKB_EXT_KCOV_HANDLE' u64 *kcov_handle = skb_ext_find(skb, SKB_EXT_KCOV_HANDLE); ^ >> drivers/net/ethernet/intel/e1000/e1000_main.c:1002:45: warning: shift count >= width of type [-Wshift-count-overflow] !dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64))) { ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~ include/linux/dma-mapping.h:76:54: note: expanded from macro 'DMA_BIT_MASK' #define DMA_BIT_MASK(n) (((n) == 64) ? ~0ULL : ((1ULL<<(n))-1)) ^ include/linux/compiler.h:56:47: note: expanded from macro 'if' #define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) ) ~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~ include/linux/compiler.h:58:52: note: expanded from macro '__trace_if_var' #define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond)) ^~~~ >> drivers/net/ethernet/intel/e1000/e1000_main.c:1002:45: warning: shift count >= width of type [-Wshift-count-overflow] !dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64))) { ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~ include/linux/dma-mapping.h:76:54: note: expanded from macro 'DMA_BIT_MASK' #define DMA_BIT_MASK(n) (((n) == 64) ? ~0ULL : ((1ULL<<(n))-1)) ^ include/linux/compiler.h:56:47: note: expanded from macro 'if' #define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) ) ~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~ include/linux/compiler.h:58:61: note: expanded from macro '__trace_if_var' #define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond)) ^~~~ >> drivers/net/ethernet/intel/e1000/e1000_main.c:1002:45: warning: shift count >= width of type [-Wshift-count-overflow] !dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64))) { ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~ include/linux/dma-mapping.h:76:54: note: expanded from macro 'DMA_BIT_MASK' #define DMA_BIT_MASK(n) (((n) == 64) ? ~0ULL : ((1ULL<<(n))-1)) ^ include/linux/compiler.h:56:47: note: expanded from macro 'if' #define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) ) ~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~ include/linux/compiler.h:58:86: note: expanded from macro '__trace_if_var' #define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond)) ~~~~~~~~~~~~~~~~~^~~~~ include/linux/compiler.h:69:3: note: expanded from macro '__trace_if_value' (cond) ? \ ^~~~ 3 warnings and 4 errors generated. -- In file included from net/ipv4/fib_trie.c:49: In file included from include/linux/inet.h:42: In file included from include/net/net_namespace.h:39: include/linux/skbuff.h:4617:26: error: implicit declaration of function 'skb_ext_add' [-Werror,-Wimplicit-function-declaration] u64 *kcov_handle_ptr = skb_ext_add(skb, SKB_EXT_KCOV_HANDLE); ^ include/linux/skbuff.h:4617:43: error: use of undeclared identifier 'SKB_EXT_KCOV_HANDLE' u64 *kcov_handle_ptr = skb_ext_add(skb, SKB_EXT_KCOV_HANDLE); ^ include/linux/skbuff.h:4626:21: error: implicit declaration of function 'skb_ext_find' [-Werror,-Wimplicit-function-declaration] u64 *kcov_handle = skb_ext_find(skb, SKB_EXT_KCOV_HANDLE); ^ include/linux/skbuff.h:4626:39: error: use of undeclared identifier 'SKB_EXT_KCOV_HANDLE' u64 *kcov_handle = skb_ext_find(skb, SKB_EXT_KCOV_HANDLE); ^ >> net/ipv4/fib_trie.c:324:13: warning: implicit conversion from 'unsigned long' to 'u32' (aka 'unsigned int') changes value from 2305843009213693946 to 4294967290 [-Wconstant-conversion] if (bits > TNODE_VMALLOC_MAX) ~~~~~~~~~~~^~~~~~~~~~~~~~~~~~ net/ipv4/fib_trie.c:305:35: note: expanded from macro 'TNODE_VMALLOC_MAX' ilog2((SIZE_MAX - TNODE_SIZE(0)) / sizeof(struct key_vector *)) ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/log2.h:161:14: note: expanded from macro 'ilog2' __ilog2_u32(n) : \ ~~~~~~~~~~~ ^ include/linux/compiler.h:56:47: note: expanded from macro 'if' #define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) ) ~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~ include/linux/compiler.h:58:86: note: expanded from macro '__trace_if_var' #define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond)) ~~~~~~~~~~~~~~~~~^~~~~ include/linux/compiler.h:69:3: note: expanded from macro '__trace_if_value' (cond) ? \ ^~~~ >> net/ipv4/fib_trie.c:324:13: warning: implicit conversion from 'unsigned long' to 'u32' (aka 'unsigned int') changes value from 2305843009213693946 to 4294967290 [-Wconstant-conversion] if (bits > TNODE_VMALLOC_MAX) ~~~~~~~~~~~^~~~~~~~~~~~~~~~~~ net/ipv4/fib_trie.c:305:35: note: expanded from macro 'TNODE_VMALLOC_MAX' ilog2((SIZE_MAX - TNODE_SIZE(0)) / sizeof(struct key_vector *)) ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/log2.h:161:14: note: expanded from macro 'ilog2' __ilog2_u32(n) : \ ~~~~~~~~~~~ ^ include/linux/compiler.h:56:47: note: expanded from macro 'if' #define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) ) ~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~ include/linux/compiler.h:58:52: note: expanded from macro '__trace_if_var' #define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond)) ^~~~ >> net/ipv4/fib_trie.c:324:13: warning: implicit conversion from 'unsigned long' to 'u32' (aka 'unsigned int') changes value from 2305843009213693946 to 4294967290 [-Wconstant-conversion] if (bits > TNODE_VMALLOC_MAX) ~~~~~~~~~~~^~~~~~~~~~~~~~~~~~ net/ipv4/fib_trie.c:305:35: note: expanded from macro 'TNODE_VMALLOC_MAX' ilog2((SIZE_MAX - TNODE_SIZE(0)) / sizeof(struct key_vector *)) ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/log2.h:161:14: note: expanded from macro 'ilog2' __ilog2_u32(n) : \ ~~~~~~~~~~~ ^ include/linux/compiler.h:56:47: note: expanded from macro 'if' #define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) ) ~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~ include/linux/compiler.h:58:61: note: expanded from macro '__trace_if_var' #define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond)) ^~~~ 3 warnings and 4 errors generated. vim +364 drivers/vdpa/vdpa_sim/vdpa_sim.c 2c53d0f64c06f4 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 342 2c53d0f64c06f4 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 343 static struct vdpasim *vdpasim_create(void) 2c53d0f64c06f4 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 344 { de91a4d0e725db drivers/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-08-04 345 const struct vdpa_config_ops *ops; 2c53d0f64c06f4 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 346 struct vdpasim *vdpasim; 2c53d0f64c06f4 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 347 struct device *dev; 2c53d0f64c06f4 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 348 int ret = -ENOMEM; 2c53d0f64c06f4 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 349 de91a4d0e725db drivers/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-08-04 350 if (batch_mapping) de91a4d0e725db drivers/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-08-04 351 ops = &vdpasim_net_batch_config_ops; de91a4d0e725db drivers/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-08-04 352 else de91a4d0e725db drivers/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-08-04 353 ops = &vdpasim_net_config_ops; de91a4d0e725db drivers/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-08-04 354 a9974489b61c09 drivers/vdpa/vdpa_sim/vdpa_sim.c Max Gurtovoy 2020-08-04 355 vdpasim = vdpa_alloc_device(struct vdpasim, vdpa, NULL, ops, VDPASIM_VQ_NUM); 2c53d0f64c06f4 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 356 if (!vdpasim) 2c53d0f64c06f4 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 357 goto err_alloc; 2c53d0f64c06f4 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 358 2c53d0f64c06f4 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 359 INIT_WORK(&vdpasim->work, vdpasim_work); 2c53d0f64c06f4 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 360 spin_lock_init(&vdpasim->lock); 1e3e792650d2c0 drivers/vdpa/vdpa_sim/vdpa_sim.c Michael S. Tsirkin 2020-08-10 361 spin_lock_init(&vdpasim->iommu_lock); 2c53d0f64c06f4 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 362 2c53d0f64c06f4 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 363 dev = &vdpasim->vdpa.dev; 2c53d0f64c06f4 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 @364 dev->coherent_dma_mask = DMA_BIT_MASK(64); 2c53d0f64c06f4 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 365 set_dma_ops(dev, &vdpasim_dma_ops); 2c53d0f64c06f4 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 366 2c53d0f64c06f4 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 367 vdpasim->iommu = vhost_iotlb_alloc(2048, 0); 2c53d0f64c06f4 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 368 if (!vdpasim->iommu) 2c53d0f64c06f4 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 369 goto err_iommu; 2c53d0f64c06f4 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 370 2c53d0f64c06f4 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 371 vdpasim->buffer = kmalloc(PAGE_SIZE, GFP_KERNEL); 2c53d0f64c06f4 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 372 if (!vdpasim->buffer) 2c53d0f64c06f4 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 373 goto err_iommu; 2c53d0f64c06f4 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 374 5d7d0f387ae1b9 drivers/vdpa/vdpa_sim/vdpa_sim.c Michael S. Tsirkin 2020-07-12 375 eth_random_addr(vdpasim->config.mac); 2c53d0f64c06f4 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 376 2c53d0f64c06f4 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 377 vringh_set_iotlb(&vdpasim->vqs[0].vring, vdpasim->iommu); 2c53d0f64c06f4 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 378 vringh_set_iotlb(&vdpasim->vqs[1].vring, vdpasim->iommu); 2c53d0f64c06f4 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 379 2c53d0f64c06f4 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 380 vdpasim->vdpa.dma_dev = dev; 2c53d0f64c06f4 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 381 ret = vdpa_register_device(&vdpasim->vdpa); 2c53d0f64c06f4 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 382 if (ret) 2c53d0f64c06f4 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 383 goto err_iommu; 2c53d0f64c06f4 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 384 2c53d0f64c06f4 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 385 return vdpasim; 2c53d0f64c06f4 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 386 2c53d0f64c06f4 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 387 err_iommu: 2c53d0f64c06f4 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 388 put_device(dev); 2c53d0f64c06f4 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 389 err_alloc: 2c53d0f64c06f4 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 390 return ERR_PTR(ret); 2c53d0f64c06f4 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 391 } 2c53d0f64c06f4 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 392 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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