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-x014-10300134 (attached as .config) reproduce: # save the attached .config to linux build tree make ARCH=x86_64 All warnings (new ones prefixed by >>): kernel/power/hibernate.c: In function 'hibernation_snapshot': >> kernel/power/hibernate.c:401:2: warning: label 'Cleanup' defined but not used [-Wunused-label] Cleanup: ^ vim +/Cleanup +401 kernel/power/hibernate.c 64a473cb7 kernel/power/hibernate.c Rafael J. Wysocki 2009-07-08 385 swsusp_free(); 64a473cb7 kernel/power/hibernate.c Rafael J. Wysocki 2009-07-08 386 91e7c75ba kernel/power/hibernate.c Rafael J. Wysocki 2011-05-17 387 msg = in_suspend ? (error ? PMSG_RECOVER : PMSG_THAW) : PMSG_RESTORE; 91e7c75ba kernel/power/hibernate.c Rafael J. Wysocki 2011-05-17 388 dpm_resume(msg); c9e664f1f kernel/power/hibernate.c Rafael J. Wysocki 2010-12-03 389 c9e664f1f kernel/power/hibernate.c Rafael J. Wysocki 2010-12-03 390 if (error || !in_suspend) c9e664f1f kernel/power/hibernate.c Rafael J. Wysocki 2010-12-03 391 pm_restore_gfp_mask(); c9e664f1f kernel/power/hibernate.c Rafael J. Wysocki 2010-12-03 392 7777fab98 kernel/power/disk.c Rafael J. Wysocki 2007-07-19 393 resume_console(); 91e7c75ba kernel/power/hibernate.c Rafael J. Wysocki 2011-05-17 394 dpm_complete(msg); 91e7c75ba kernel/power/hibernate.c Rafael J. Wysocki 2011-05-17 395 caea99ef3 kernel/power/disk.c Rafael J. Wysocki 2008-01-08 396 Close: caea99ef3 kernel/power/disk.c Rafael J. Wysocki 2008-01-08 397 platform_end(platform_mode); 7777fab98 kernel/power/disk.c Rafael J. Wysocki 2007-07-19 398 return error; d8f3de0d2 kernel/power/disk.c Rafael J. Wysocki 2008-06-12 399 51d6ff7ac kernel/power/hibernate.c Srivatsa S. Bhat 2012-02-04 400 Thaw: bb58dd5d1 kernel/power/hibernate.c Rafael J. Wysocki 2011-11-22 @401 Cleanup: bb58dd5d1 kernel/power/hibernate.c Rafael J. Wysocki 2011-11-22 402 swsusp_free(); bb58dd5d1 kernel/power/hibernate.c Rafael J. Wysocki 2011-11-22 403 goto Close; 7777fab98 kernel/power/disk.c Rafael J. Wysocki 2007-07-19 404 } 7777fab98 kernel/power/disk.c Rafael J. Wysocki 2007-07-19 405 7777fab98 kernel/power/disk.c Rafael J. Wysocki 2007-07-19 406 /** f42a9813f kernel/power/hibernate.c Rafael J. Wysocki 2011-05-24 407 * resume_target_kernel - Restore system state from a hibernation image. f42a9813f kernel/power/hibernate.c Rafael J. Wysocki 2011-05-24 408 * @platform_mode: Whether or not to use the platform driver. f42a9813f kernel/power/hibernate.c Rafael J. Wysocki 2011-05-24 409 * :::::: The code at line 401 was first introduced by commit :::::: bb58dd5d1ffad6c2d21c69698ba766dad4ae54e6 PM / Hibernate: Do not leak memory in error/test code paths :::::: TO: Rafael J. Wysocki :::::: CC: Rafael J. Wysocki --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation