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Mon, 14 Mar 2022 03:31:54 +0000 Date: Mon, 14 Mar 2022 11:31:03 +0800 From: kernel test robot To: Randy Dunlap Cc: kbuild-all@lists.01.org, linux-kernel@vger.kernel.org, Johannes Berg Subject: drivers/net/wireless/intel/iwlwifi/mei/net.c:400: undefined reference to `ieee80211_hdrlen' Message-ID: <202203141142.6EHviCS0-lkp@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.10.1 (2018-07-13) Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 09688c0166e76ce2fb85e86b9d99be8b0084cdf9 commit: 875ad06015329314c594d3302ac2bbea37774543 iwlwifi: fix build error for IWLMEI date: 11 days ago config: i386-randconfig-a001-20220314 (https://download.01.org/0day-ci/archive/20220314/202203141142.6EHviCS0-lkp@intel.com/config) compiler: gcc-9 (Ubuntu 9.4.0-1ubuntu1~20.04) 9.4.0 reproduce (this is a W=1 build): # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=875ad06015329314c594d3302ac2bbea37774543 git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout 875ad06015329314c594d3302ac2bbea37774543 # save the config file to linux build tree mkdir build_dir make W=1 O=build_dir ARCH=i386 SHELL=/bin/bash If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot All errors (new ones prefixed by >>): ld: drivers/net/wireless/intel/iwlwifi/mei/net.o: in function `iwl_mei_tx_copy_to_csme': >> drivers/net/wireless/intel/iwlwifi/mei/net.c:400: undefined reference to `ieee80211_hdrlen' vim +400 drivers/net/wireless/intel/iwlwifi/mei/net.c 2da4366f9e2c44 Emmanuel Grumbach 2021-11-12 364 2da4366f9e2c44 Emmanuel Grumbach 2021-11-12 365 #define DHCP_SERVER_PORT 67 2da4366f9e2c44 Emmanuel Grumbach 2021-11-12 366 #define DHCP_CLIENT_PORT 68 2da4366f9e2c44 Emmanuel Grumbach 2021-11-12 367 void iwl_mei_tx_copy_to_csme(struct sk_buff *origskb, unsigned int ivlen) 2da4366f9e2c44 Emmanuel Grumbach 2021-11-12 368 { 2da4366f9e2c44 Emmanuel Grumbach 2021-11-12 369 struct ieee80211_hdr *hdr; 2da4366f9e2c44 Emmanuel Grumbach 2021-11-12 370 struct sk_buff *skb; 2da4366f9e2c44 Emmanuel Grumbach 2021-11-12 371 struct ethhdr ethhdr; 2da4366f9e2c44 Emmanuel Grumbach 2021-11-12 372 struct ethhdr *eth; 2da4366f9e2c44 Emmanuel Grumbach 2021-11-12 373 2da4366f9e2c44 Emmanuel Grumbach 2021-11-12 374 /* Catch DHCP packets */ 2da4366f9e2c44 Emmanuel Grumbach 2021-11-12 375 if (origskb->protocol != htons(ETH_P_IP) || 2da4366f9e2c44 Emmanuel Grumbach 2021-11-12 376 ip_hdr(origskb)->protocol != IPPROTO_UDP || 2da4366f9e2c44 Emmanuel Grumbach 2021-11-12 377 udp_hdr(origskb)->source != htons(DHCP_CLIENT_PORT) || 2da4366f9e2c44 Emmanuel Grumbach 2021-11-12 378 udp_hdr(origskb)->dest != htons(DHCP_SERVER_PORT)) 2da4366f9e2c44 Emmanuel Grumbach 2021-11-12 379 return; 2da4366f9e2c44 Emmanuel Grumbach 2021-11-12 380 2da4366f9e2c44 Emmanuel Grumbach 2021-11-12 381 /* 2da4366f9e2c44 Emmanuel Grumbach 2021-11-12 382 * We could be a bit less aggressive here and not copy everything, but 2da4366f9e2c44 Emmanuel Grumbach 2021-11-12 383 * this is very rare anyway, do don't bother much. 2da4366f9e2c44 Emmanuel Grumbach 2021-11-12 384 */ 2da4366f9e2c44 Emmanuel Grumbach 2021-11-12 385 skb = skb_copy(origskb, GFP_ATOMIC); 2da4366f9e2c44 Emmanuel Grumbach 2021-11-12 386 if (!skb) 2da4366f9e2c44 Emmanuel Grumbach 2021-11-12 387 return; 2da4366f9e2c44 Emmanuel Grumbach 2021-11-12 388 2da4366f9e2c44 Emmanuel Grumbach 2021-11-12 389 skb->protocol = origskb->protocol; 2da4366f9e2c44 Emmanuel Grumbach 2021-11-12 390 2da4366f9e2c44 Emmanuel Grumbach 2021-11-12 391 hdr = (void *)skb->data; 2da4366f9e2c44 Emmanuel Grumbach 2021-11-12 392 2da4366f9e2c44 Emmanuel Grumbach 2021-11-12 393 memcpy(ethhdr.h_dest, ieee80211_get_DA(hdr), ETH_ALEN); 2da4366f9e2c44 Emmanuel Grumbach 2021-11-12 394 memcpy(ethhdr.h_source, ieee80211_get_SA(hdr), ETH_ALEN); 2da4366f9e2c44 Emmanuel Grumbach 2021-11-12 395 2da4366f9e2c44 Emmanuel Grumbach 2021-11-12 396 /* 2da4366f9e2c44 Emmanuel Grumbach 2021-11-12 397 * Remove the ieee80211 header + IV + SNAP but leave the ethertype 2da4366f9e2c44 Emmanuel Grumbach 2021-11-12 398 * We still have enough headroom for the sap header. 2da4366f9e2c44 Emmanuel Grumbach 2021-11-12 399 */ 2da4366f9e2c44 Emmanuel Grumbach 2021-11-12 @400 pskb_pull(skb, ieee80211_hdrlen(hdr->frame_control) + ivlen + 6); :::::: The code at line 400 was first introduced by commit :::::: 2da4366f9e2c44afedec4acad65a99a3c7da1a35 iwlwifi: mei: add the driver to allow cooperation with CSME :::::: TO: Emmanuel Grumbach :::::: CC: Kalle Valo --- 0-DAY CI Kernel Test Service https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org