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X-CSE-ConnectionGUID: F4G/EbzgTbiH3svVKt+grw== X-CSE-MsgGUID: /7xWel2cReuNb+d3k/qoAg== X-IronPort-AV: E=McAfee;i="6800,10657,11651"; a="72248388" X-IronPort-AV: E=Sophos;i="6.21,172,1763452800"; d="scan'208";a="72248388" Received: from fmviesa004.fm.intel.com ([10.60.135.144]) by orvoesa106.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 23 Dec 2025 21:12:58 -0800 X-CSE-ConnectionGUID: vJmReA7XQP+geEnEEH1ldg== X-CSE-MsgGUID: fzhjdhrYSLGd1gxEWWk0rw== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.21,172,1763452800"; d="scan'208";a="204870755" Received: from lkp-server02.sh.intel.com (HELO dd3453e2b682) ([10.239.97.151]) by fmviesa004.fm.intel.com with ESMTP; 23 Dec 2025 21:12:56 -0800 Received: from kbuild by dd3453e2b682 with local (Exim 4.98.2) (envelope-from ) id 1vYHB8-000000002iX-3G0t; Wed, 24 Dec 2025 05:12:54 +0000 Date: Wed, 24 Dec 2025 13:12:13 +0800 From: kernel test robot To: Yury Norov Cc: oe-kbuild-all@lists.linux.dev Subject: [norov:kerne-unload 6/6] arch/s390/kernel/machine_kexec.c:254:2: error: call to undeclared function 'tracing_off'; ISO C99 and later do not support implicit function declarations Message-ID: <202512241352.Ec4E1Goi-lkp@intel.com> User-Agent: s-nail v14.9.25 Precedence: bulk X-Mailing-List: oe-kbuild-all@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: tree: https://github.com/norov/linux kerne-unload head: a2b83b8a1af321f2206864668e042008f27a0fbf commit: a2b83b8a1af321f2206864668e042008f27a0fbf [6/6] drop trace_printk.h config: s390-defconfig (https://download.01.org/0day-ci/archive/20251224/202512241352.Ec4E1Goi-lkp@intel.com/config) compiler: clang version 22.0.0git (https://github.com/llvm/llvm-project 4ef602d446057dabf5f61fb221669ecbeda49279) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251224/202512241352.Ec4E1Goi-lkp@intel.com/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot | Closes: https://lore.kernel.org/oe-kbuild-all/202512241352.Ec4E1Goi-lkp@intel.com/ All errors (new ones prefixed by >>): >> arch/s390/kernel/machine_kexec.c:254:2: error: call to undeclared function 'tracing_off'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration] 254 | tracing_off(); | ^ 1 error generated. vim +/tracing_off +254 arch/s390/kernel/machine_kexec.c 2c2df118a64407 Heiko Carstens 2010-02-26 247 60a0c68df2632f Michael Holzheu 2011-10-30 248 /* 60a0c68df2632f Michael Holzheu 2011-10-30 249 * Reset system and call either kdump or normal kexec 60a0c68df2632f Michael Holzheu 2011-10-30 250 */ 60a0c68df2632f Michael Holzheu 2011-10-30 251 static void __machine_kexec(void *data) 60a0c68df2632f Michael Holzheu 2011-10-30 252 { 60a0c68df2632f Michael Holzheu 2011-10-30 253 pfault_fini(); 3ab121ab186692 Michael Holzheu 2012-03-11 @254 tracing_off(); 3ab121ab186692 Michael Holzheu 2012-03-11 255 debug_locks_off(); 10ad34bc76dfbc Martin Schwidefsky 2015-01-14 256 #ifdef CONFIG_CRASH_DUMP 1a36a39e225d35 Martin Schwidefsky 2015-10-29 257 if (((struct kimage *) data)->type == KEXEC_TYPE_CRASH) 1a36a39e225d35 Martin Schwidefsky 2015-10-29 258 __machine_kdump(data); 10ad34bc76dfbc Martin Schwidefsky 2015-01-14 259 #endif 1a36a39e225d35 Martin Schwidefsky 2015-10-29 260 __do_machine_kexec(data); 60a0c68df2632f Michael Holzheu 2011-10-30 261 } 60a0c68df2632f Michael Holzheu 2011-10-30 262 :::::: The code at line 254 was first introduced by commit :::::: 3ab121ab18669226742891416fe7ecc86dadb047 [S390] kernel: Add z/VM LGR detection :::::: TO: Michael Holzheu :::::: CC: Martin Schwidefsky -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki