From: kernel test robot <lkp@intel.com>
To: unlisted-recipients:; (no To-header on input)
Cc: kbuild-all@lists.01.org, linux-kernel@vger.kernel.org
Subject: [peterz-queue:sched/wchan 7/7] arch/mips/kernel/stacktrace.c:69:6: warning: no previous prototype for '__save_stack_trace_tsk'
Date: Thu, 7 Oct 2021 16:22:48 +0800 [thread overview]
Message-ID: <202110071646.hhTx2yKC-lkp@intel.com> (raw)
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tree: https://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue.git sched/wchan
head: 48f17ab32afc56a67359efc5b8889cb8cb42ec80
commit: 48f17ab32afc56a67359efc5b8889cb8cb42ec80 [7/7] arch: Fix STACKTRACE_SUPPORT
config: mips-loongson1b_defconfig (attached as .config)
compiler: mipsel-linux-gcc (GCC) 11.2.0
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/peterz/queue.git/commit/?id=48f17ab32afc56a67359efc5b8889cb8cb42ec80
git remote add peterz-queue https://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue.git
git fetch --no-tags peterz-queue sched/wchan
git checkout 48f17ab32afc56a67359efc5b8889cb8cb42ec80
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross ARCH=mips
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>
All warnings (new ones prefixed by >>):
>> arch/mips/kernel/stacktrace.c:69:6: warning: no previous prototype for '__save_stack_trace_tsk' [-Wmissing-prototypes]
69 | void __save_stack_trace_tsk(struct task_struct *tsk, struct stack_trace *trace, bool savesched)
| ^~~~~~~~~~~~~~~~~~~~~~
vim +/__save_stack_trace_tsk +69 arch/mips/kernel/stacktrace.c
68
> 69 void __save_stack_trace_tsk(struct task_struct *tsk, struct stack_trace *trace, bool savesched)
70 {
71 struct pt_regs dummyregs;
72 struct pt_regs *regs = &dummyregs;
73
74 WARN_ON(trace->nr_entries || !trace->max_entries);
75
76 if (tsk != current) {
77 regs->regs[29] = tsk->thread.reg29;
78 regs->regs[31] = 0;
79 regs->cp0_epc = tsk->thread.reg31;
80 } else
81 prepare_frametrace(regs);
82 save_context_stack(trace, tsk, regs, savesched);
83 }
84
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
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reply other threads:[~2021-10-07 8:23 UTC|newest]
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