Hi Antonio, [auto build test WARNING on mac80211-next/master] [also build test WARNING on v4.3 next-20151113] url: https://github.com/0day-ci/linux/commits/Antonio-Quartulli/nl80211-add-flag-to-force-passive-scan-on-DFS-channels/20151114-025331 base: https://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next.git master config: x86_64-randconfig-s4-11140343 (attached as .config) reproduce: # save the attached .config to linux build tree make ARCH=x86_64 All warnings (new ones prefixed by >>): In file included from include/linux/linkage.h:4:0, from include/linux/kernel.h:6, from include/linux/skbuff.h:17, from include/linux/if_arp.h:26, from net/mac80211/scan.c:16: net/mac80211/scan.c: In function '__ieee80211_start_scan': net/mac80211/scan.c:603:9: error: 'chan' undeclared (first use in this function) ((chan->flags & IEEE80211_CHAN_RADAR) && ^ include/linux/compiler.h:147:28: note: in definition of macro '__trace_if' if (__builtin_constant_p((cond)) ? !!(cond) : \ ^ >> net/mac80211/scan.c:600:3: note: in expansion of macro 'if' if ((req->channels[0]->flags & ^ net/mac80211/scan.c:603:9: note: each undeclared identifier is reported only once for each function it appears in ((chan->flags & IEEE80211_CHAN_RADAR) && ^ include/linux/compiler.h:147:28: note: in definition of macro '__trace_if' if (__builtin_constant_p((cond)) ? !!(cond) : \ ^ >> net/mac80211/scan.c:600:3: note: in expansion of macro 'if' if ((req->channels[0]->flags & ^ net/mac80211/scan.c:604:9: error: 'scan_req' undeclared (first use in this function) (scan_req->flags & NL80211_SCAN_FLAG_PASSIVE_RADAR))) { ^ include/linux/compiler.h:147:28: note: in definition of macro '__trace_if' if (__builtin_constant_p((cond)) ? !!(cond) : \ ^ >> net/mac80211/scan.c:600:3: note: in expansion of macro 'if' if ((req->channels[0]->flags & ^ net/mac80211/scan.c: In function 'ieee80211_scan_get_channel_time': net/mac80211/scan.c:652:8: error: 'scan_req' undeclared (first use in this function) (scan_req->flags & NL80211_SCAN_FLAG_PASSIVE_RADAR))) ^ include/linux/compiler.h:147:28: note: in definition of macro '__trace_if' if (__builtin_constant_p((cond)) ? !!(cond) : \ ^ net/mac80211/scan.c:650:2: note: in expansion of macro 'if' if ((chan->flags & IEEE80211_CHAN_NO_IR) || ^ vim +/if +600 net/mac80211/scan.c 8a690674 Ben Greear 2012-04-17 584 */ 8a690674 Ben Greear 2012-04-17 585 unsigned long next_delay; 8a690674 Ben Greear 2012-04-17 586 8a690674 Ben Greear 2012-04-17 587 __set_bit(SCAN_ONCHANNEL_SCANNING, &local->scanning); 8a690674 Ben Greear 2012-04-17 588 8a690674 Ben Greear 2012-04-17 589 ieee80211_recalc_idle(local); 8a690674 Ben Greear 2012-04-17 590 8a690674 Ben Greear 2012-04-17 591 /* Notify driver scan is starting, keep order of operations 8a690674 Ben Greear 2012-04-17 592 * same as normal software scan, in case that matters. */ a344d677 Johannes Berg 2014-06-12 593 drv_sw_scan_start(local, sdata, local->scan_addr); 8a690674 Ben Greear 2012-04-17 594 8a690674 Ben Greear 2012-04-17 595 ieee80211_configure_filter(local); /* accept probe-responses */ 8a690674 Ben Greear 2012-04-17 596 8a690674 Ben Greear 2012-04-17 597 /* We need to ensure power level is at max for scanning. */ 8a690674 Ben Greear 2012-04-17 598 ieee80211_hw_config(local, 0); 8a690674 Ben Greear 2012-04-17 599 8a690674 Ben Greear 2012-04-17 @600 if ((req->channels[0]->flags & 8fe02e16 Luis R. Rodriguez 2013-10-21 601 IEEE80211_CHAN_NO_IR) || a55b8b39 Antonio Quartulli 2015-11-14 602 !req->n_ssids || a55b8b39 Antonio Quartulli 2015-11-14 603 ((chan->flags & IEEE80211_CHAN_RADAR) && a55b8b39 Antonio Quartulli 2015-11-14 604 (scan_req->flags & NL80211_SCAN_FLAG_PASSIVE_RADAR))) { 8a690674 Ben Greear 2012-04-17 605 next_delay = IEEE80211_PASSIVE_CHANNEL_TIME; 8a690674 Ben Greear 2012-04-17 606 } else { 8a690674 Ben Greear 2012-04-17 607 ieee80211_scan_state_send_probe(local, &next_delay); 8a690674 Ben Greear 2012-04-17 608 next_delay = IEEE80211_CHANNEL_TIME; :::::: The code at line 600 was first introduced by commit :::::: 8a690674e0601efbe9a7b16a5826fc522645cca3 mac80211: Support on-channel scan option. :::::: TO: Ben Greear <greearb@xxxxxxxxxxxxxxx> :::::: CC: John W. Linville <linville@xxxxxxxxxxxxx> --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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