Hi Heng, kernel test robot noticed the following build warnings: [auto build test WARNING on net-next/main] url: https://github.com/intel-lab-lkp/linux/commits/Heng-Qi/linux-dim-move-useful-macros-to-h-file/20240411-221400 base: net-next/main patch link: https://lore.kernel.org/r/1712844751-53514-3-git-send-email-hengqi%40linux.alibaba.com patch subject: [PATCH net-next v6 2/4] ethtool: provide customized dim profile management config: riscv-defconfig (https://download.01.org/0day-ci/archive/20240412/202404121112.lymscQm1-lkp@xxxxxxxxx/config) compiler: clang version 19.0.0git (https://github.com/llvm/llvm-project 8b3b4a92adee40483c27f26c478a384cd69c6f05) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240412/202404121112.lymscQm1-lkp@xxxxxxxxx/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202404121112.lymscQm1-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): >> net/ethtool/coalesce.c:373: warning: Function parameter or struct member 'dev' not described in 'ethnl_update_profile' >> net/ethtool/coalesce.c:373: warning: Excess function parameter 'mod' description in 'ethnl_update_profile' vim +373 net/ethtool/coalesce.c 347 348 /** 349 * ethnl_update_profile - get a nla nest with four child nla nests from userspace. 350 * @dst: data get from the driver and modified by ethnl_update_profile. 351 * @nests: nest attr ETHTOOL_A_COALESCE_*X_*QE_PROFILE to set driver's profile. 352 * @mod: whether the data is modified 353 * @extack: Netlink extended ack 354 * 355 * Layout of nests: 356 * Nested ETHTOOL_A_COALESCE_*X_*QE_PROFILE attr 357 * Nested ETHTOOL_A_MODERATIONS_MODERATION attr 358 * ETHTOOL_A_MODERATION_USEC attr 359 * ETHTOOL_A_MODERATION_PKTS attr 360 * ETHTOOL_A_MODERATION_COMPS attr 361 * ... 362 * Nested ETHTOOL_A_MODERATIONS_MODERATION attr 363 * ETHTOOL_A_MODERATION_USEC attr 364 * ETHTOOL_A_MODERATION_PKTS attr 365 * ETHTOOL_A_MODERATION_COMPS attr 366 * 367 * Returns 0 on success or a negative error code. 368 */ 369 static inline int ethnl_update_profile(struct net_device *dev, 370 struct dim_cq_moder *dst, 371 const struct nlattr *nests, 372 struct netlink_ext_ack *extack) > 373 { 374 struct nlattr *tb_moder[ARRAY_SIZE(coalesce_set_profile_policy)]; 375 struct dim_cq_moder profile[NET_DIM_PARAMS_NUM_PROFILES]; 376 struct nlattr *nest; 377 int ret, rem, i = 0; 378 379 if (!nests) 380 return 0; 381 382 if (!dst) 383 return -EOPNOTSUPP; 384 385 nla_for_each_nested_type(nest, ETHTOOL_A_MODERATIONS_MODERATION, nests, rem) { 386 ret = nla_parse_nested(tb_moder, 387 ARRAY_SIZE(coalesce_set_profile_policy) - 1, 388 nest, coalesce_set_profile_policy, 389 extack); 390 if (ret) 391 return ret; 392 393 if (NL_REQ_ATTR_CHECK(extack, nest, tb_moder, ETHTOOL_A_MODERATION_USEC) || 394 NL_REQ_ATTR_CHECK(extack, nest, tb_moder, ETHTOOL_A_MODERATION_PKTS) || 395 NL_REQ_ATTR_CHECK(extack, nest, tb_moder, ETHTOOL_A_MODERATION_COMPS)) 396 return -EINVAL; 397 398 profile[i].usec = nla_get_u16(tb_moder[ETHTOOL_A_MODERATION_USEC]); 399 profile[i].pkts = nla_get_u16(tb_moder[ETHTOOL_A_MODERATION_PKTS]); 400 profile[i].comps = nla_get_u16(tb_moder[ETHTOOL_A_MODERATION_COMPS]); 401 402 if ((dst[i].usec != profile[i].usec && !(dev->priv_flags & IFF_PROFILE_USEC)) || 403 (dst[i].pkts != profile[i].pkts && !(dev->priv_flags & IFF_PROFILE_PKTS)) || 404 (dst[i].comps != profile[i].comps && !(dev->priv_flags & IFF_PROFILE_COMPS))) 405 return -EOPNOTSUPP; 406 407 i++; 408 } 409 410 memcpy(dst, profile, sizeof(profile)); 411 412 return 0; 413 } 414 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
