Hi Paul, [auto build test ERROR on next-20151016 -- if it's inappropriate base, please suggest rules for selecting the more suitable base] url: https://github.com/0day-ci/linux/commits/Paul-Osmialowski/Additional-kmsg-devices/20151019-211509 config: i386-defconfig (attached as .config) reproduce: # save the attached .config to linux build tree make ARCH=i386 All error/warnings (new ones prefixed by >>): In file included from include/linux/fs.h:5:0, from kernel/printk/kmsg.c:5: kernel/printk/kmsg.c: In function 'devkmsg_read': include/linux/wait.h:400:31: error: 'TASK_INTERRUPTIBLE' undeclared (first use in this function) ___wait_event(wq, condition, TASK_INTERRUPTIBLE, 0, 0, \ ^ include/linux/wait.h:225:52: note: in definition of macro '___wait_event' long __int = prepare_to_wait_event(&wq, &__wait, state);\ ^ >> include/linux/wait.h:423:11: note: in expansion of macro '__wait_event_interruptible' __ret = __wait_event_interruptible(wq, condition); \ ^ >> kernel/printk/kmsg.c:105:9: note: in expansion of macro 'wait_event_interruptible' ret = wait_event_interruptible(log_wait, ^ include/linux/wait.h:400:31: note: each undeclared identifier is reported only once for each function it appears in ___wait_event(wq, condition, TASK_INTERRUPTIBLE, 0, 0, \ ^ include/linux/wait.h:225:52: note: in definition of macro '___wait_event' long __int = prepare_to_wait_event(&wq, &__wait, state);\ ^ >> include/linux/wait.h:423:11: note: in expansion of macro '__wait_event_interruptible' __ret = __wait_event_interruptible(wq, condition); \ ^ >> kernel/printk/kmsg.c:105:9: note: in expansion of macro 'wait_event_interruptible' ret = wait_event_interruptible(log_wait, ^ include/linux/wait.h:198:43: error: 'TASK_KILLABLE' undeclared (first use in this function) state == TASK_INTERRUPTIBLE || state == TASK_KILLABLE) \ ^ include/linux/wait.h:230:7: note: in expansion of macro '___wait_is_interruptible' if (___wait_is_interruptible(state) && __int) { \ ^ include/linux/wait.h:400:2: note: in expansion of macro '___wait_event' ___wait_event(wq, condition, TASK_INTERRUPTIBLE, 0, 0, \ ^ >> include/linux/wait.h:423:11: note: in expansion of macro '__wait_event_interruptible' __ret = __wait_event_interruptible(wq, condition); \ ^ >> kernel/printk/kmsg.c:105:9: note: in expansion of macro 'wait_event_interruptible' ret = wait_event_interruptible(log_wait, ^ >> include/linux/wait.h:401:9: error: implicit declaration of function 'schedule' [-Werror=implicit-function-declaration] schedule()) ^ include/linux/wait.h:240:3: note: in definition of macro '___wait_event' cmd; \ ^ >> include/linux/wait.h:423:11: note: in expansion of macro '__wait_event_interruptible' __ret = __wait_event_interruptible(wq, condition); \ ^ >> kernel/printk/kmsg.c:105:9: note: in expansion of macro 'wait_event_interruptible' ret = wait_event_interruptible(log_wait, ^ cc1: some warnings being treated as errors vim +/schedule +401 include/linux/wait.h 82e06c81 Shaohua Li 2013-11-14 394 if (condition) \ 82e06c81 Shaohua Li 2013-11-14 395 break; \ 82e06c81 Shaohua Li 2013-11-14 396 __wait_event_cmd(wq, condition, cmd1, cmd2); \ 82e06c81 Shaohua Li 2013-11-14 397 } while (0) 82e06c81 Shaohua Li 2013-11-14 398 35a2af94 Peter Zijlstra 2013-10-02 399 #define __wait_event_interruptible(wq, condition) \ 35a2af94 Peter Zijlstra 2013-10-02 @400 ___wait_event(wq, condition, TASK_INTERRUPTIBLE, 0, 0, \ f13f4c41 Peter Zijlstra 2013-10-02 @401 schedule()) ^1da177e Linus Torvalds 2005-04-16 402 ^1da177e Linus Torvalds 2005-04-16 403 /** ^1da177e Linus Torvalds 2005-04-16 404 * wait_event_interruptible - sleep until a condition gets true ^1da177e Linus Torvalds 2005-04-16 405 * @wq: the waitqueue to wait on ^1da177e Linus Torvalds 2005-04-16 406 * @condition: a C expression for the event to wait for ^1da177e Linus Torvalds 2005-04-16 407 * ^1da177e Linus Torvalds 2005-04-16 408 * The process is put to sleep (TASK_INTERRUPTIBLE) until the ^1da177e Linus Torvalds 2005-04-16 409 * @condition evaluates to true or a signal is received. ^1da177e Linus Torvalds 2005-04-16 410 * The @condition is checked each time the waitqueue @wq is woken up. ^1da177e Linus Torvalds 2005-04-16 411 * ^1da177e Linus Torvalds 2005-04-16 412 * wake_up() has to be called after changing any variable that could ^1da177e Linus Torvalds 2005-04-16 413 * change the result of the wait condition. ^1da177e Linus Torvalds 2005-04-16 414 * ^1da177e Linus Torvalds 2005-04-16 415 * The function will return -ERESTARTSYS if it was interrupted by a ^1da177e Linus Torvalds 2005-04-16 416 * signal and 0 if @condition evaluated to true. ^1da177e Linus Torvalds 2005-04-16 417 */ ^1da177e Linus Torvalds 2005-04-16 418 #define wait_event_interruptible(wq, condition) \ ^1da177e Linus Torvalds 2005-04-16 419 ({ \ ^1da177e Linus Torvalds 2005-04-16 420 int __ret = 0; \ e22b886a Peter Zijlstra 2014-09-24 421 might_sleep(); \ ^1da177e Linus Torvalds 2005-04-16 422 if (!(condition)) \ 35a2af94 Peter Zijlstra 2013-10-02 @423 __ret = __wait_event_interruptible(wq, condition); \ ^1da177e Linus Torvalds 2005-04-16 424 __ret; \ ^1da177e Linus Torvalds 2005-04-16 425 }) ^1da177e Linus Torvalds 2005-04-16 426 :::::: The code at line 401 was first introduced by commit :::::: f13f4c41c9cf9cd61c896e46e4e7ba2687e2af9c sched/wait: Collapse __wait_event_interruptible() :::::: TO: Peter Zijlstra <peterz@xxxxxxxxxxxxx> :::::: CC: Ingo Molnar <mingo@xxxxxxxxxx> --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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