tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: 889bab4c367a0ef58208fd80fafa74bb6e2dca26 commit: 75db5b07f8c393c216fd20f7adc9a167fc684c23 [8371/11714] net: qualcomm: rmnet: eliminate some ifdefs config: nds32-randconfig-s031-20210621 (attached as .config) compiler: nds32le-linux-gcc (GCC) 9.3.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # apt-get install sparse # sparse version: v0.6.3-341-g8af24329-dirty # https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=75db5b07f8c393c216fd20f7adc9a167fc684c23 git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git git fetch --no-tags linux-next master git checkout 75db5b07f8c393c216fd20f7adc9a167fc684c23 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' W=1 ARCH=nds32 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> Note: the linux-next/master HEAD 889bab4c367a0ef58208fd80fafa74bb6e2dca26 builds fine. It may have been fixed somewhere. All errors (new ones prefixed by >>): drivers/net/ethernet/qualcomm/rmnet/rmnet_map_data.c: In function 'rmnet_map_checksum_downlink_packet': >> drivers/net/ethernet/qualcomm/rmnet/rmnet_map_data.c:438:10: error: implicit declaration of function 'rmnet_map_ipv6_dl_csum_trailer'; did you mean 'rmnet_map_ipv4_dl_csum_trailer'? [-Werror=implicit-function-declaration] 438 | return rmnet_map_ipv6_dl_csum_trailer(skb, csum_trailer, priv); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | rmnet_map_ipv4_dl_csum_trailer drivers/net/ethernet/qualcomm/rmnet/rmnet_map_data.c: In function 'rmnet_map_v4_checksum_uplink_packet': >> drivers/net/ethernet/qualcomm/rmnet/rmnet_map_data.c:472:3: error: implicit declaration of function 'rmnet_map_ipv6_ul_csum_header'; did you mean 'rmnet_map_ipv4_ul_csum_header'? [-Werror=implicit-function-declaration] 472 | rmnet_map_ipv6_ul_csum_header(iphdr, ul_header, skb); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | rmnet_map_ipv4_ul_csum_header cc1: some warnings being treated as errors vim +438 drivers/net/ethernet/qualcomm/rmnet/rmnet_map_data.c bbd21b247cb596 Subash Abhinov Kasiviswanathan 2018-01-07 410 bbd21b247cb596 Subash Abhinov Kasiviswanathan 2018-01-07 411 /* Validates packet checksums. Function takes a pointer to bbd21b247cb596 Subash Abhinov Kasiviswanathan 2018-01-07 412 * the beginning of a buffer which contains the IP payload + bbd21b247cb596 Subash Abhinov Kasiviswanathan 2018-01-07 413 * padding + checksum trailer. bbd21b247cb596 Subash Abhinov Kasiviswanathan 2018-01-07 414 * Only IPv4 and IPv6 are supported along with TCP & UDP. bbd21b247cb596 Subash Abhinov Kasiviswanathan 2018-01-07 415 * Fragmented or tunneled packets are not supported. bbd21b247cb596 Subash Abhinov Kasiviswanathan 2018-01-07 416 */ bbd21b247cb596 Subash Abhinov Kasiviswanathan 2018-01-07 417 int rmnet_map_checksum_downlink_packet(struct sk_buff *skb, u16 len) bbd21b247cb596 Subash Abhinov Kasiviswanathan 2018-01-07 418 { bbde32d38bfbbc Subash Abhinov Kasiviswanathan 2018-05-15 419 struct rmnet_priv *priv = netdev_priv(skb->dev); bbd21b247cb596 Subash Abhinov Kasiviswanathan 2018-01-07 420 struct rmnet_map_dl_csum_trailer *csum_trailer; bbd21b247cb596 Subash Abhinov Kasiviswanathan 2018-01-07 421 bbde32d38bfbbc Subash Abhinov Kasiviswanathan 2018-05-15 422 if (unlikely(!(skb->dev->features & NETIF_F_RXCSUM))) { bbde32d38bfbbc Subash Abhinov Kasiviswanathan 2018-05-15 423 priv->stats.csum_sw++; bbd21b247cb596 Subash Abhinov Kasiviswanathan 2018-01-07 424 return -EOPNOTSUPP; bbde32d38bfbbc Subash Abhinov Kasiviswanathan 2018-05-15 425 } bbd21b247cb596 Subash Abhinov Kasiviswanathan 2018-01-07 426 bbd21b247cb596 Subash Abhinov Kasiviswanathan 2018-01-07 427 csum_trailer = (struct rmnet_map_dl_csum_trailer *)(skb->data + len); bbd21b247cb596 Subash Abhinov Kasiviswanathan 2018-01-07 428 cc1b21ba6251c8 Alex Elder 2021-03-15 429 if (!(csum_trailer->flags & MAP_CSUM_DL_VALID_FLAG)) { bbde32d38bfbbc Subash Abhinov Kasiviswanathan 2018-05-15 430 priv->stats.csum_valid_unset++; bbd21b247cb596 Subash Abhinov Kasiviswanathan 2018-01-07 431 return -EINVAL; bbde32d38bfbbc Subash Abhinov Kasiviswanathan 2018-05-15 432 } bbd21b247cb596 Subash Abhinov Kasiviswanathan 2018-01-07 433 75db5b07f8c393 Alex Elder 2021-06-11 434 if (skb->protocol == htons(ETH_P_IP)) bbde32d38bfbbc Subash Abhinov Kasiviswanathan 2018-05-15 435 return rmnet_map_ipv4_dl_csum_trailer(skb, csum_trailer, priv); 75db5b07f8c393 Alex Elder 2021-06-11 436 75db5b07f8c393 Alex Elder 2021-06-11 437 if (IS_ENABLED(CONFIG_IPV6) && skb->protocol == htons(ETH_P_IPV6)) bbde32d38bfbbc Subash Abhinov Kasiviswanathan 2018-05-15 @438 return rmnet_map_ipv6_dl_csum_trailer(skb, csum_trailer, priv); 75db5b07f8c393 Alex Elder 2021-06-11 439 bbde32d38bfbbc Subash Abhinov Kasiviswanathan 2018-05-15 440 priv->stats.csum_err_invalid_ip_version++; bbd21b247cb596 Subash Abhinov Kasiviswanathan 2018-01-07 441 75db5b07f8c393 Alex Elder 2021-06-11 442 return -EPROTONOSUPPORT; bbd21b247cb596 Subash Abhinov Kasiviswanathan 2018-01-07 443 } 5eb5f8608ef118 Subash Abhinov Kasiviswanathan 2018-01-07 444 b6e5d27e32ef60 Sharath Chandra Vurukala 2021-06-02 445 static void rmnet_map_v4_checksum_uplink_packet(struct sk_buff *skb, 5eb5f8608ef118 Subash Abhinov Kasiviswanathan 2018-01-07 446 struct net_device *orig_dev) 5eb5f8608ef118 Subash Abhinov Kasiviswanathan 2018-01-07 447 { bbde32d38bfbbc Subash Abhinov Kasiviswanathan 2018-05-15 448 struct rmnet_priv *priv = netdev_priv(orig_dev); 5eb5f8608ef118 Subash Abhinov Kasiviswanathan 2018-01-07 449 struct rmnet_map_ul_csum_header *ul_header; 5eb5f8608ef118 Subash Abhinov Kasiviswanathan 2018-01-07 450 void *iphdr; 5eb5f8608ef118 Subash Abhinov Kasiviswanathan 2018-01-07 451 5eb5f8608ef118 Subash Abhinov Kasiviswanathan 2018-01-07 452 ul_header = (struct rmnet_map_ul_csum_header *) 5eb5f8608ef118 Subash Abhinov Kasiviswanathan 2018-01-07 453 skb_push(skb, sizeof(struct rmnet_map_ul_csum_header)); 5eb5f8608ef118 Subash Abhinov Kasiviswanathan 2018-01-07 454 5eb5f8608ef118 Subash Abhinov Kasiviswanathan 2018-01-07 455 if (unlikely(!(orig_dev->features & 5eb5f8608ef118 Subash Abhinov Kasiviswanathan 2018-01-07 456 (NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM)))) 5eb5f8608ef118 Subash Abhinov Kasiviswanathan 2018-01-07 457 goto sw_csum; 5eb5f8608ef118 Subash Abhinov Kasiviswanathan 2018-01-07 458 75db5b07f8c393 Alex Elder 2021-06-11 459 if (skb->ip_summed != CHECKSUM_PARTIAL) 75db5b07f8c393 Alex Elder 2021-06-11 460 goto sw_csum; 75db5b07f8c393 Alex Elder 2021-06-11 461 5eb5f8608ef118 Subash Abhinov Kasiviswanathan 2018-01-07 462 iphdr = (char *)ul_header + 5eb5f8608ef118 Subash Abhinov Kasiviswanathan 2018-01-07 463 sizeof(struct rmnet_map_ul_csum_header); 5eb5f8608ef118 Subash Abhinov Kasiviswanathan 2018-01-07 464 5eb5f8608ef118 Subash Abhinov Kasiviswanathan 2018-01-07 465 if (skb->protocol == htons(ETH_P_IP)) { 5eb5f8608ef118 Subash Abhinov Kasiviswanathan 2018-01-07 466 rmnet_map_ipv4_ul_csum_header(iphdr, ul_header, skb); b6e5d27e32ef60 Sharath Chandra Vurukala 2021-06-02 467 priv->stats.csum_hw++; 5eb5f8608ef118 Subash Abhinov Kasiviswanathan 2018-01-07 468 return; 75db5b07f8c393 Alex Elder 2021-06-11 469 } 75db5b07f8c393 Alex Elder 2021-06-11 470 75db5b07f8c393 Alex Elder 2021-06-11 471 if (IS_ENABLED(CONFIG_IPV6) && skb->protocol == htons(ETH_P_IPV6)) { 5eb5f8608ef118 Subash Abhinov Kasiviswanathan 2018-01-07 @472 rmnet_map_ipv6_ul_csum_header(iphdr, ul_header, skb); b6e5d27e32ef60 Sharath Chandra Vurukala 2021-06-02 473 priv->stats.csum_hw++; 5eb5f8608ef118 Subash Abhinov Kasiviswanathan 2018-01-07 474 return; 5eb5f8608ef118 Subash Abhinov Kasiviswanathan 2018-01-07 475 } 5eb5f8608ef118 Subash Abhinov Kasiviswanathan 2018-01-07 476 75db5b07f8c393 Alex Elder 2021-06-11 477 priv->stats.csum_err_invalid_ip_version++; 75db5b07f8c393 Alex Elder 2021-06-11 478 5eb5f8608ef118 Subash Abhinov Kasiviswanathan 2018-01-07 479 sw_csum: 86ca860e12ec0f Alex Elder 2021-03-15 480 memset(ul_header, 0, sizeof(*ul_header)); bbde32d38bfbbc Subash Abhinov Kasiviswanathan 2018-05-15 481 bbde32d38bfbbc Subash Abhinov Kasiviswanathan 2018-05-15 482 priv->stats.csum_sw++; 5eb5f8608ef118 Subash Abhinov Kasiviswanathan 2018-01-07 483 } e1d9a90a9bfdb0 Sharath Chandra Vurukala 2021-06-02 484 :::::: The code at line 438 was first introduced by commit :::::: bbde32d38bfbbc4a6970498c7470a8a817122735 net: qualcomm: rmnet: Add support for ethtool private stats :::::: TO: Subash Abhinov Kasiviswanathan <subashab@xxxxxxxxxxxxxx> :::::: CC: David S. Miller <davem@xxxxxxxxxxxxx> --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
Attachment:
.config.gz
Description: application/gzip
