Hi Jiri, [auto build test WARNING on v4.3-rc7 -- if it's inappropriate base, please suggest rules for selecting the more suitable base] url: https://github.com/0day-ci/linux/commits/Jiri-Kosina/PM-vfs-use-filesystem-freezing-instead-of-kthread-freezer/20151030-215223 config: x86_64-randconfig-x017-10300134 (attached as .config) reproduce: # save the attached .config to linux build tree make ARCH=x86_64 All warnings (new ones prefixed by >>): drivers/media/dvb-core/dvb_frontend.c: In function 'dvb_frontend_thread': >> drivers/media/dvb-core/dvb_frontend.c:730:1: warning: label 'restart' defined but not used [-Wunused-label] restart: ^ vim +/restart +730 drivers/media/dvb-core/dvb_frontend.c 9239effd5 drivers/media/dvb-core/dvb_frontend.c Mauro Carvalho Chehab 2015-01-06 714 if (ret) { 9239effd5 drivers/media/dvb-core/dvb_frontend.c Mauro Carvalho Chehab 2015-01-06 715 /* FIXME: return an error if it fails */ 9239effd5 drivers/media/dvb-core/dvb_frontend.c Mauro Carvalho Chehab 2015-01-06 716 dev_info(fe->dvb->device, 9239effd5 drivers/media/dvb-core/dvb_frontend.c Mauro Carvalho Chehab 2015-01-06 717 "proceeding with FE task\n"); 8a26a258b drivers/media/dvb-core/dvb_frontend.c Mauro Carvalho Chehab 2015-02-23 718 } else if (fepriv->pipe_start_entity) { 135f9be91 drivers/media/dvb-core/dvb_frontend.c Mauro Carvalho Chehab 2015-01-06 719 ret = media_entity_pipeline_start(fepriv->pipe_start_entity, 135f9be91 drivers/media/dvb-core/dvb_frontend.c Mauro Carvalho Chehab 2015-01-06 720 &fepriv->pipe); 135f9be91 drivers/media/dvb-core/dvb_frontend.c Mauro Carvalho Chehab 2015-01-06 721 if (ret) 135f9be91 drivers/media/dvb-core/dvb_frontend.c Mauro Carvalho Chehab 2015-01-06 722 return ret; 9239effd5 drivers/media/dvb-core/dvb_frontend.c Mauro Carvalho Chehab 2015-01-06 723 } 135f9be91 drivers/media/dvb-core/dvb_frontend.c Mauro Carvalho Chehab 2015-01-06 724 #endif 9239effd5 drivers/media/dvb-core/dvb_frontend.c Mauro Carvalho Chehab 2015-01-06 725 04c56d0e5 drivers/media/dvb/dvb-core/dvb_frontend.c Andrew de Quincey 2006-07-10 726 dvb_frontend_init(fe); 36cb557a2 drivers/media/dvb/dvb-core/dvb_frontend.c Andrew de Quincey 2006-01-09 727 36cb557a2 drivers/media/dvb/dvb-core/dvb_frontend.c Andrew de Quincey 2006-01-09 728 while (1) { 36cb557a2 drivers/media/dvb/dvb-core/dvb_frontend.c Andrew de Quincey 2006-01-09 729 up(&fepriv->sem); /* is locked when we enter the thread... */ 6591691b2 drivers/media/dvb/dvb-core/dvb_frontend.c Andrew Morton 2007-02-08 @730 restart: 94238e9b1 drivers/media/dvb/dvb-core/dvb_frontend.c Hans Verkuil 2011-08-27 731 wait_event_interruptible_timeout(fepriv->wait_queue, e42837bcd drivers/media/dvb/dvb-core/dvb_frontend.c Rafael J. Wysocki 2007-10-18 732 dvb_frontend_should_wakeup(fe) || kthread_should_stop() e42837bcd drivers/media/dvb/dvb-core/dvb_frontend.c Rafael J. Wysocki 2007-10-18 733 || freezing(current), 36cb557a2 drivers/media/dvb/dvb-core/dvb_frontend.c Andrew de Quincey 2006-01-09 734 fepriv->delay); 8eec14295 drivers/media/dvb/dvb-core/dvb_frontend.c Herbert Poetzl 2007-02-08 735 8eec14295 drivers/media/dvb/dvb-core/dvb_frontend.c Herbert Poetzl 2007-02-08 736 if (kthread_should_stop() || dvb_frontend_is_exiting(fe)) { 36cb557a2 drivers/media/dvb/dvb-core/dvb_frontend.c Andrew de Quincey 2006-01-09 737 /* got signal or quitting */ 6ae232245 drivers/media/dvb-core/dvb_frontend.c Juergen Lock 2012-12-23 738 if (!down_interruptible(&fepriv->sem)) :::::: The code at line 730 was first introduced by commit :::::: 6591691b259f9487f374f35c0c310aa220f829c6 V4L/DVB (5209): Kthread api conversion for dvb_frontend and av7110 fix :::::: TO: akpm@xxxxxxxxxxxxxxxxxxxx <akpm@xxxxxxxxxxxxxxxxxxxx> :::::: CC: Mauro Carvalho Chehab <mchehab@xxxxxxxxxxxxx> --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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