Hi Mateusz, [auto build test WARNING on linus/master] [also build test WARNING on v4.8-rc3 next-20160822] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] [Suggest to use git(>=2.9.0) format-patch --base=<commit> (or --base=auto for convenience) to record what (public, well-known) commit your patch series was built on] [Check https://git-scm.com/docs/git-format-patch for more information]
url: https://github.com/0day-ci/linux/commits/Mateusz-Guzik/mm-introduce-get_task_exe_file/20160823-045421 config: sparc64-allyesconfig (attached as .config) compiler: sparc64-linux-gnu-gcc (Debian 5.4.0-6) 5.4.0 20160609 reproduce: wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # save the attached .config to linux build tree make.cross ARCH=sparc64 All warnings (new ones prefixed by >>): kernel/fork.c: In function 'get_task_exe_file': >> kernel/fork.c:820:1: warning: label 'out' defined but not used >> [-Wunused-label] out: ^ vim +/out +820 kernel/fork.c 804 * Returns %NULL if task's mm (if any) has no associated executable file or 805 * this is a kernel thread with borrowed mm (see the comment above get_task_mm). 806 * User must release file via fput(). 807 */ 808 struct file *get_task_exe_file(struct task_struct *task) 809 { 810 struct file *exe_file = NULL; 811 struct mm_struct *mm; 812 813 task_lock(task); 814 mm = task->mm; 815 if (mm) { 816 if (!(task->flags & PF_KTHREAD)) 817 exe_file = get_mm_exe_file(mm); 818 } 819 task_unlock(task); > 820 out: 821 return exe_file; 822 } 823 EXPORT_SYMBOL(get_task_exe_file); 824 825 /** 826 * get_task_mm - acquire a reference to the task's mm 827 * 828 * Returns %NULL if the task has no mm. Checks PF_KTHREAD (meaning --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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