From: kernel test robot <lkp@intel.com>
To: Yury Norov <yury.norov@gmail.com>
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
Date: Wed, 24 Dec 2025 13:12:13 +0800 [thread overview]
Message-ID: <202512241352.Ec4E1Goi-lkp@intel.com> (raw)
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 <lkp@intel.com>
| 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 <holzheu@linux.vnet.ibm.com>
:::::: CC: Martin Schwidefsky <schwidefsky@de.ibm.com>
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
reply other threads:[~2025-12-24 5:12 UTC|newest]
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