Hi Weilong, [auto build test ERROR on v4.5-rc1] [also build test ERROR on next-20160129] [if your patch is applied to the wrong git tree, please drop us a note to help improving the system]
url: https://github.com/0day-ci/linux/commits/Weilong-Chen/Race-between-cat-proc-kallsyms-and-rmmod/20160130-182606 config: i386-randconfig-a0-201604 (attached as .config) reproduce: # save the attached .config to linux build tree make ARCH=i386 All errors (new ones prefixed by >>): In file included from include/linux/notifier.h:13:0, from include/linux/memory_hotplug.h:6, from include/linux/mmzone.h:728, from include/linux/gfp.h:5, from include/linux/kmod.h:22, from include/linux/module.h:13, from kernel/kallsyms.c:15: kernel/kallsyms.c: In function 's_start': >> kernel/kallsyms.c:519:14: error: 'module_mutex' undeclared (first use in >> this function) mutex_lock(&module_mutex); ^ include/linux/mutex.h:146:44: note: in definition of macro 'mutex_lock' #define mutex_lock(lock) mutex_lock_nested(lock, 0) ^ kernel/kallsyms.c:519:14: note: each undeclared identifier is reported only once for each function it appears in mutex_lock(&module_mutex); ^ include/linux/mutex.h:146:44: note: in definition of macro 'mutex_lock' #define mutex_lock(lock) mutex_lock_nested(lock, 0) ^ kernel/kallsyms.c: In function 's_stop': kernel/kallsyms.c:527:16: error: 'module_mutex' undeclared (first use in this function) mutex_unlock(&module_mutex); ^ vim +/module_mutex +519 kernel/kallsyms.c 513 return NULL; 514 return p; 515 } 516 517 static void *s_start(struct seq_file *m, loff_t *pos) 518 { > 519 mutex_lock(&module_mutex); 520 if (!update_iter(m->private, *pos)) 521 return NULL; 522 return m->private; --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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