Hi Johannes, [auto build test ERROR on mac80211-next/master] [also build test ERROR on v4.10-rc3 next-20170106] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system]
url: https://github.com/0day-ci/linux/commits/Johannes-Berg/cfg80211-size-various-nl80211-messages-correctly/20170109-185808 base: https://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next.git master config: x86_64-kexec (attached as .config) compiler: gcc-6 (Debian 6.2.0-3) 6.2.0 20160901 reproduce: # save the attached .config to linux build tree make ARCH=x86_64 All errors (new ones prefixed by >>): net/wireless/nl80211.c: In function 'nl80211_michael_mic_failure': >> net/wireless/nl80211.c:13365:24: error: 'req_ie_len' undeclared (first use >> in this function) msg = nlmsg_new(100 + req_ie_len + resp_ie_len, gfp); ^~~~~~~~~~ net/wireless/nl80211.c:13365:24: note: each undeclared identifier is reported only once for each function it appears in >> net/wireless/nl80211.c:13365:37: error: 'resp_ie_len' undeclared (first use >> in this function) msg = nlmsg_new(100 + req_ie_len + resp_ie_len, gfp); ^~~~~~~~~~~ net/wireless/nl80211.c: In function 'nl80211_send_remain_on_chan_event': >> net/wireless/nl80211.c:13459:24: error: 'len' undeclared (first use in this >> function) msg = nlmsg_new(100 + len, gfp); ^~~ net/wireless/nl80211.c: In function 'nl80211_ch_switch_notify': net/wireless/nl80211.c:14049:24: error: 'req_ie_len' undeclared (first use in this function) msg = nlmsg_new(100 + req_ie_len + resp_ie_len, gfp); ^~~~~~~~~~ net/wireless/nl80211.c:14049:37: error: 'resp_ie_len' undeclared (first use in this function) msg = nlmsg_new(100 + req_ie_len + resp_ie_len, gfp); ^~~~~~~~~~~ vim +/req_ie_len +13365 net/wireless/nl80211.c 13359 enum nl80211_key_type key_type, int key_id, 13360 const u8 *tsc, gfp_t gfp) 13361 { 13362 struct sk_buff *msg; 13363 void *hdr; 13364 13365 msg = nlmsg_new(100 + req_ie_len + resp_ie_len, gfp); 13366 if (!msg) 13367 return; 13368 13369 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_MICHAEL_MIC_FAILURE); 13370 if (!hdr) { 13371 nlmsg_free(msg); 13372 return; 13373 } 13374 13375 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, rdev->wiphy_idx) || 13376 nla_put_u32(msg, NL80211_ATTR_IFINDEX, netdev->ifindex) || 13377 (addr && nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr)) || 13378 nla_put_u32(msg, NL80211_ATTR_KEY_TYPE, key_type) || 13379 (key_id != -1 && 13380 nla_put_u8(msg, NL80211_ATTR_KEY_IDX, key_id)) || 13381 (tsc && nla_put(msg, NL80211_ATTR_KEY_SEQ, 6, tsc))) 13382 goto nla_put_failure; 13383 13384 genlmsg_end(msg, hdr); 13385 13386 genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0, 13387 NL80211_MCGRP_MLME, gfp); 13388 return; 13389 13390 nla_put_failure: 13391 genlmsg_cancel(msg, hdr); 13392 nlmsg_free(msg); 13393 } 13394 13395 void nl80211_send_beacon_hint_event(struct wiphy *wiphy, 13396 struct ieee80211_channel *channel_before, 13397 struct ieee80211_channel *channel_after) 13398 { 13399 struct sk_buff *msg; 13400 void *hdr; 13401 struct nlattr *nl_freq; 13402 13403 msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC); 13404 if (!msg) 13405 return; 13406 13407 hdr = nl80211hdr_put(msg, 0, 0, 0, NL80211_CMD_REG_BEACON_HINT); 13408 if (!hdr) { 13409 nlmsg_free(msg); 13410 return; 13411 } 13412 13413 /* 13414 * Since we are applying the beacon hint to a wiphy we know its 13415 * wiphy_idx is valid 13416 */ 13417 if (nla_put_u32(msg, NL80211_ATTR_WIPHY, get_wiphy_idx(wiphy))) 13418 goto nla_put_failure; 13419 13420 /* Before */ 13421 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_BEFORE); 13422 if (!nl_freq) 13423 goto nla_put_failure; 13424 if (nl80211_msg_put_channel(msg, channel_before, false)) 13425 goto nla_put_failure; 13426 nla_nest_end(msg, nl_freq); 13427 13428 /* After */ 13429 nl_freq = nla_nest_start(msg, NL80211_ATTR_FREQ_AFTER); 13430 if (!nl_freq) 13431 goto nla_put_failure; 13432 if (nl80211_msg_put_channel(msg, channel_after, false)) 13433 goto nla_put_failure; 13434 nla_nest_end(msg, nl_freq); 13435 13436 genlmsg_end(msg, hdr); 13437 13438 rcu_read_lock(); 13439 genlmsg_multicast_allns(&nl80211_fam, msg, 0, 13440 NL80211_MCGRP_REGULATORY, GFP_ATOMIC); 13441 rcu_read_unlock(); 13442 13443 return; 13444 13445 nla_put_failure: 13446 genlmsg_cancel(msg, hdr); 13447 nlmsg_free(msg); 13448 } 13449 13450 static void nl80211_send_remain_on_chan_event( 13451 int cmd, struct cfg80211_registered_device *rdev, 13452 struct wireless_dev *wdev, u64 cookie, 13453 struct ieee80211_channel *chan, 13454 unsigned int duration, gfp_t gfp) 13455 { 13456 struct sk_buff *msg; 13457 void *hdr; 13458 13459 msg = nlmsg_new(100 + len, gfp); 13460 if (!msg) 13461 return; 13462 --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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