[linux-rt-devel:linux-5.9.y-rt-rebase 12/220] arch/powerpc/kexec/crash.c:315:2: error: implicit declaration of function 'printk_nmi_enter'; did you mean

[linux-rt-devel:linux-5.9.y-rt-rebase 12/220] arch/powerpc/kexec/crash.c:315:2: error: implicit declaration of function 'printk_nmi_enter'; did you mean

[kernel test robot]

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tree:   https://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-5.9.y-rt-rebase
head:   9dd5279e0cf53370afb4b4982d7eecb230471932
commit: 7bed8a05950e3858b4e0d8147e0459a79b750ae8 [12/220] printk_safe: remove printk safe code
config: powerpc-allyesconfig (attached as .config)
compiler: powerpc64-linux-gcc (GCC) 9.3.0
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # https://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git/commit/?id=7bed8a05950e3858b4e0d8147e0459a79b750ae8
        git remote add linux-rt-devel https://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git
        git fetch --no-tags linux-rt-devel linux-5.9.y-rt-rebase
        git checkout 7bed8a05950e3858b4e0d8147e0459a79b750ae8
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=powerpc 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>

All errors (new ones prefixed by >>):

   arch/powerpc/kexec/crash.c: In function 'default_machine_crash_shutdown':
>> arch/powerpc/kexec/crash.c:315:2: error: implicit declaration of function 'printk_nmi_enter'; did you mean 'print_tainted'? [-Werror=implicit-function-declaration]
     315 |  printk_nmi_enter();
         |  ^~~~~~~~~~~~~~~~
         |  print_tainted
   arch/powerpc/kexec/crash.c: In function 'crash_kexec_prepare_cpus.isra.0':
   arch/powerpc/kexec/crash.c:107:15: warning: variable 'ncpus' might be clobbered by 'longjmp' or 'vfork' [-Wclobbered]
     107 |  unsigned int ncpus = num_online_cpus() - 1;/* Excluding the panic cpu */
         |               ^~~~~
   arch/powerpc/kexec/crash.c:108:6: warning: variable 'tries' might be clobbered by 'longjmp' or 'vfork' [-Wclobbered]
     108 |  int tries = 0;
         |      ^~~~~
   cc1: some warnings being treated as errors

vim +315 arch/powerpc/kexec/crash.c

496b010e1e70a9b arch/powerpc/kernel/crash.c Michael Neuling  2008-01-18  308  
cc53291521701f9 arch/powerpc/kernel/crash.c Michael Ellerman 2005-12-04  309  void default_machine_crash_shutdown(struct pt_regs *regs)
cc53291521701f9 arch/powerpc/kernel/crash.c Michael Ellerman 2005-12-04  310  {
496b010e1e70a9b arch/powerpc/kernel/crash.c Michael Neuling  2008-01-18  311  	unsigned int i;
496b010e1e70a9b arch/powerpc/kernel/crash.c Michael Neuling  2008-01-18  312  	int (*old_handler)(struct pt_regs *regs);
496b010e1e70a9b arch/powerpc/kernel/crash.c Michael Neuling  2008-01-18  313  
af2876b501e42c3 arch/powerpc/kexec/crash.c  Leonardo Bras    2020-05-12  314  	/* Avoid hardlocking with irresponsive CPU holding logbuf_lock */
af2876b501e42c3 arch/powerpc/kexec/crash.c  Leonardo Bras    2020-05-12 @315  	printk_nmi_enter();

:::::: The code at line 315 was first introduced by commit
:::::: af2876b501e42c3fb5174cac9dd02598436f0fdf powerpc/crash: Use NMI context for printk when starting to crash

:::::: TO: Leonardo Bras <leobras.c@gmail.com>
:::::: CC: Michael Ellerman <mpe@ellerman.id.au>

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org

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