Hi WEN, [auto build test ERROR on: input/next] [also build test ERROR on: v4.4-rc2 next-20151127]
url: https://github.com/0day-ci/linux/commits/WEN-Pingbo/introduce-new-evdev-interface-type/20151127-180438 base: https://git.kernel.org/pub/scm/linux/kernel/git/dtor/input.git next config: i386-randconfig-s0-201547 (attached as .config) reproduce: # save the attached .config to linux build tree make ARCH=i386 Note: the linux-review/WEN-Pingbo/introduce-new-evdev-interface-type/20151127-180438 HEAD fc81990de5842e76f794f755e095e4c5e55f8caa builds fine. It only hurts bisectibility. All error/warnings (new ones prefixed by >>): drivers/input/misc/uinput.c: In function 'uinput_inject_events': >> drivers/input/misc/uinput.c:442:28: error: too few arguments to function >> 'input_event_size' if (count != 0 && count < input_event_size()) ^ In file included from drivers/input/misc/uinput.c:43:0: drivers/input/misc/../input-compat.h:84:22: note: declared here static inline size_t input_event_size(int if_type) ^ drivers/input/misc/uinput.c:445:17: error: too few arguments to function 'input_event_size' while (bytes + input_event_size() <= count) { ^ In file included from drivers/input/misc/uinput.c:43:0: drivers/input/misc/../input-compat.h:84:22: note: declared here static inline size_t input_event_size(int if_type) ^ >> drivers/input/misc/uinput.c:452:45: warning: passing argument 2 of >> 'input_event_from_user' from incompatible pointer type >> [-Wincompatible-pointer-types] if (input_event_from_user(buffer + bytes, &ev)) ^ In file included from drivers/input/misc/uinput.c:43:0: drivers/input/misc/../input-compat.h:102:5: note: expected 'struct input_value *' but argument is of type 'struct input_event *' int input_event_from_user(const char __user *buffer, ^ >> drivers/input/misc/uinput.c:452:7: error: too few arguments to function >> 'input_event_from_user' if (input_event_from_user(buffer + bytes, &ev)) ^ In file included from drivers/input/misc/uinput.c:43:0: drivers/input/misc/../input-compat.h:102:5: note: declared here int input_event_from_user(const char __user *buffer, ^ drivers/input/misc/uinput.c:456:12: error: too few arguments to function 'input_event_size' bytes += input_event_size(); ^ In file included from drivers/input/misc/uinput.c:43:0: drivers/input/misc/../input-compat.h:84:22: note: declared here static inline size_t input_event_size(int if_type) ^ drivers/input/misc/uinput.c: In function 'uinput_events_to_user': drivers/input/misc/uinput.c:508:16: error: too few arguments to function 'input_event_size' while (read + input_event_size() <= count && ^ In file included from drivers/input/misc/uinput.c:43:0: drivers/input/misc/../input-compat.h:84:22: note: declared here static inline size_t input_event_size(int if_type) ^ >> drivers/input/misc/uinput.c:511:42: warning: passing argument 2 of >> 'input_event_to_user' from incompatible pointer type >> [-Wincompatible-pointer-types] if (input_event_to_user(buffer + read, &event)) ^ In file included from drivers/input/misc/uinput.c:43:0: drivers/input/misc/../input-compat.h:105:5: note: expected 'const struct input_value *' but argument is of type 'struct input_event *' int input_event_to_user(char __user *buffer, const struct input_value *event, ^ >> drivers/input/misc/uinput.c:511:7: error: too few arguments to function >> 'input_event_to_user' if (input_event_to_user(buffer + read, &event)) ^ In file included from drivers/input/misc/uinput.c:43:0: drivers/input/misc/../input-compat.h:105:5: note: declared here int input_event_to_user(char __user *buffer, const struct input_value *event, ^ drivers/input/misc/uinput.c:514:11: error: too few arguments to function 'input_event_size' read += input_event_size(); ^ In file included from drivers/input/misc/uinput.c:43:0: drivers/input/misc/../input-compat.h:84:22: note: declared here static inline size_t input_event_size(int if_type) ^ drivers/input/misc/uinput.c: In function 'uinput_read': drivers/input/misc/uinput.c:526:28: error: too few arguments to function 'input_event_size' if (count != 0 && count < input_event_size()) ^ In file included from drivers/input/misc/uinput.c:43:0: drivers/input/misc/../input-compat.h:84:22: note: declared here static inline size_t input_event_size(int if_type) ^ vim +/input_event_size +442 drivers/input/misc/uinput.c cbf05413 Ryan Mallon 2013-09-18 436 static ssize_t uinput_inject_events(struct uinput_device *udev, 54ce165e Dmitry Torokhov 2012-07-29 437 const char __user *buffer, size_t count) ^1da177e Linus Torvalds 2005-04-16 438 { ^1da177e Linus Torvalds 2005-04-16 439 struct input_event ev; cbf05413 Ryan Mallon 2013-09-18 440 size_t bytes = 0; ^1da177e Linus Torvalds 2005-04-16 441 cbf05413 Ryan Mallon 2013-09-18 @442 if (count != 0 && count < input_event_size()) 29506415 Dmitry Torokhov 2005-11-20 443 return -EINVAL; 29506415 Dmitry Torokhov 2005-11-20 444 cbf05413 Ryan Mallon 2013-09-18 @445 while (bytes + input_event_size() <= count) { cbf05413 Ryan Mallon 2013-09-18 446 /* cbf05413 Ryan Mallon 2013-09-18 447 * Note that even if some events were fetched successfully cbf05413 Ryan Mallon 2013-09-18 448 * we are still going to return EFAULT instead of partial cbf05413 Ryan Mallon 2013-09-18 449 * count to let userspace know that it got it's buffers cbf05413 Ryan Mallon 2013-09-18 450 * all wrong. cbf05413 Ryan Mallon 2013-09-18 451 */ cbf05413 Ryan Mallon 2013-09-18 @452 if (input_event_from_user(buffer + bytes, &ev)) ^1da177e Linus Torvalds 2005-04-16 453 return -EFAULT; 29506415 Dmitry Torokhov 2005-11-20 454 ^1da177e Linus Torvalds 2005-04-16 455 input_event(udev->dev, ev.type, ev.code, ev.value); cbf05413 Ryan Mallon 2013-09-18 456 bytes += input_event_size(); cbf05413 Ryan Mallon 2013-09-18 457 } ^1da177e Linus Torvalds 2005-04-16 458 cbf05413 Ryan Mallon 2013-09-18 459 return bytes; 29506415 Dmitry Torokhov 2005-11-20 460 } 29506415 Dmitry Torokhov 2005-11-20 461 54ce165e Dmitry Torokhov 2012-07-29 462 static ssize_t uinput_write(struct file *file, const char __user *buffer, 54ce165e Dmitry Torokhov 2012-07-29 463 size_t count, loff_t *ppos) 29506415 Dmitry Torokhov 2005-11-20 464 { 29506415 Dmitry Torokhov 2005-11-20 465 struct uinput_device *udev = file->private_data; 29506415 Dmitry Torokhov 2005-11-20 466 int retval; 29506415 Dmitry Torokhov 2005-11-20 467 22ae19c6 Dmitry Torokhov 2012-07-29 468 if (count == 0) 22ae19c6 Dmitry Torokhov 2012-07-29 469 return 0; 22ae19c6 Dmitry Torokhov 2012-07-29 470 221979aa Dmitry Torokhov 2006-02-19 471 retval = mutex_lock_interruptible(&udev->mutex); 29506415 Dmitry Torokhov 2005-11-20 472 if (retval) 29506415 Dmitry Torokhov 2005-11-20 473 return retval; 29506415 Dmitry Torokhov 2005-11-20 474 29506415 Dmitry Torokhov 2005-11-20 475 retval = udev->state == UIST_CREATED ? cbf05413 Ryan Mallon 2013-09-18 476 uinput_inject_events(udev, buffer, count) : 29506415 Dmitry Torokhov 2005-11-20 477 uinput_setup_device(udev, buffer, count); 29506415 Dmitry Torokhov 2005-11-20 478 221979aa Dmitry Torokhov 2006-02-19 479 mutex_unlock(&udev->mutex); 29506415 Dmitry Torokhov 2005-11-20 480 29506415 Dmitry Torokhov 2005-11-20 481 return retval; ^1da177e Linus Torvalds 2005-04-16 482 } ^1da177e Linus Torvalds 2005-04-16 483 929d1af5 Dmitry Torokhov 2012-07-29 484 static bool uinput_fetch_next_event(struct uinput_device *udev, 929d1af5 Dmitry Torokhov 2012-07-29 485 struct input_event *event) 929d1af5 Dmitry Torokhov 2012-07-29 486 { 929d1af5 Dmitry Torokhov 2012-07-29 487 bool have_event; 929d1af5 Dmitry Torokhov 2012-07-29 488 929d1af5 Dmitry Torokhov 2012-07-29 489 spin_lock_irq(&udev->dev->event_lock); 929d1af5 Dmitry Torokhov 2012-07-29 490 929d1af5 Dmitry Torokhov 2012-07-29 491 have_event = udev->head != udev->tail; 929d1af5 Dmitry Torokhov 2012-07-29 492 if (have_event) { 929d1af5 Dmitry Torokhov 2012-07-29 493 *event = udev->buff[udev->tail]; 929d1af5 Dmitry Torokhov 2012-07-29 494 udev->tail = (udev->tail + 1) % UINPUT_BUFFER_SIZE; 929d1af5 Dmitry Torokhov 2012-07-29 495 } 929d1af5 Dmitry Torokhov 2012-07-29 496 929d1af5 Dmitry Torokhov 2012-07-29 497 spin_unlock_irq(&udev->dev->event_lock); 929d1af5 Dmitry Torokhov 2012-07-29 498 929d1af5 Dmitry Torokhov 2012-07-29 499 return have_event; 929d1af5 Dmitry Torokhov 2012-07-29 500 } 929d1af5 Dmitry Torokhov 2012-07-29 501 22ae19c6 Dmitry Torokhov 2012-07-29 502 static ssize_t uinput_events_to_user(struct uinput_device *udev, 22ae19c6 Dmitry Torokhov 2012-07-29 503 char __user *buffer, size_t count) ^1da177e Linus Torvalds 2005-04-16 504 { 929d1af5 Dmitry Torokhov 2012-07-29 505 struct input_event event; 22ae19c6 Dmitry Torokhov 2012-07-29 506 size_t read = 0; ^1da177e Linus Torvalds 2005-04-16 507 22ae19c6 Dmitry Torokhov 2012-07-29 @508 while (read + input_event_size() <= count && 22ae19c6 Dmitry Torokhov 2012-07-29 509 uinput_fetch_next_event(udev, &event)) { f40033ac David Herrmann 2012-07-29 510 00ce756c Dmitry Torokhov 2012-07-29 @511 if (input_event_to_user(buffer + read, &event)) 00ce756c Dmitry Torokhov 2012-07-29 512 return -EFAULT; ^1da177e Linus Torvalds 2005-04-16 513 22ae19c6 Dmitry Torokhov 2012-07-29 514 read += input_event_size(); :::::: The code at line 442 was first introduced by commit :::::: cbf0541374e2fcfdfdcaf8365c957a137eb9feea Input: uinput - support injecting multiple events in one write() call :::::: TO: Ryan Mallon <rmal...@gmail.com> :::::: CC: Dmitry Torokhov <dmitry.torok...@gmail.com> --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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