On Wed, May 14, 2025 at 06:49:42AM +0800, kernel test robot wrote: > Hi Byungchul, > > kernel test robot noticed the following build warnings: > > [auto build test WARNING on 82f2b0b97b36ee3fcddf0f0780a9a0825d52fec3] > > url: https://github.com/intel-lab-lkp/linux/commits/Byungchul-Park/llist-move-llist_-head-node-definition-to-types-h/20250513-181346 > base: 82f2b0b97b36ee3fcddf0f0780a9a0825d52fec3 > patch link: https://lore.kernel.org/r/20250513100730.12664-34-byungchul%40sk.com > patch subject: [PATCH v15 33/43] dept: assign unique dept_key to each distinct dma fence caller > config: arm-randconfig-002-20250514 (https://download.01.org/0day-ci/archive/20250514/202505140631.FOWO8B5L-lkp@xxxxxxxxx/config) > compiler: clang version 21.0.0git (https://github.com/llvm/llvm-project f819f46284f2a79790038e1f6649172789734ae8) > reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250514/202505140631.FOWO8B5L-lkp@xxxxxxxxx/reproduce) > > If you fix the issue in a separate patch/commit (i.e. not just a new version of > the same patch/commit), kindly add following tags > | Reported-by: kernel test robot <lkp@xxxxxxxxx> > | Closes: https://lore.kernel.org/oe-kbuild-all/202505140631.FOWO8B5L-lkp@xxxxxxxxx/ > > All warnings (new ones prefixed by >>): > > >> drivers/dma-buf/dma-fence.c:503: warning: expecting prototype for dma_fence_wait_timeout(). Prototype was for __dma_fence_wait_timeout() instead > >> drivers/dma-buf/dma-fence.c:763: warning: expecting prototype for dma_fence_default_wait(). Prototype was for __dma_fence_default_wait() instead > >> drivers/dma-buf/dma-fence.c:853: warning: expecting prototype for dma_fence_wait_any_timeout(). Prototype was for __dma_fence_wait_any_timeout() instead I have just fixed it. Thanks. Byungchul > > vim +503 drivers/dma-buf/dma-fence.c > > e941759c74a44d drivers/dma-buf/fence.c Maarten Lankhorst 2014-07-01 482 > e941759c74a44d drivers/dma-buf/fence.c Maarten Lankhorst 2014-07-01 483 /** > f54d1867005c33 drivers/dma-buf/dma-fence.c Chris Wilson 2016-10-25 484 * dma_fence_wait_timeout - sleep until the fence gets signaled > e941759c74a44d drivers/dma-buf/fence.c Maarten Lankhorst 2014-07-01 485 * or until timeout elapses > 4dd3cdb281f7a3 drivers/dma-buf/dma-fence.c Simona Vetter 2018-07-04 486 * @fence: the fence to wait on > 4dd3cdb281f7a3 drivers/dma-buf/dma-fence.c Simona Vetter 2018-07-04 487 * @intr: if true, do an interruptible wait > 4dd3cdb281f7a3 drivers/dma-buf/dma-fence.c Simona Vetter 2018-07-04 488 * @timeout: timeout value in jiffies, or MAX_SCHEDULE_TIMEOUT > e941759c74a44d drivers/dma-buf/fence.c Maarten Lankhorst 2014-07-01 489 * > e941759c74a44d drivers/dma-buf/fence.c Maarten Lankhorst 2014-07-01 490 * Returns -ERESTARTSYS if interrupted, 0 if the wait timed out, or the > e941759c74a44d drivers/dma-buf/fence.c Maarten Lankhorst 2014-07-01 491 * remaining timeout in jiffies on success. Other error values may be > e941759c74a44d drivers/dma-buf/fence.c Maarten Lankhorst 2014-07-01 492 * returned on custom implementations. > e941759c74a44d drivers/dma-buf/fence.c Maarten Lankhorst 2014-07-01 493 * > e941759c74a44d drivers/dma-buf/fence.c Maarten Lankhorst 2014-07-01 494 * Performs a synchronous wait on this fence. It is assumed the caller > e941759c74a44d drivers/dma-buf/fence.c Maarten Lankhorst 2014-07-01 495 * directly or indirectly (buf-mgr between reservation and committing) > e941759c74a44d drivers/dma-buf/fence.c Maarten Lankhorst 2014-07-01 496 * holds a reference to the fence, otherwise the fence might be > e941759c74a44d drivers/dma-buf/fence.c Maarten Lankhorst 2014-07-01 497 * freed before return, resulting in undefined behavior. > 4dd3cdb281f7a3 drivers/dma-buf/dma-fence.c Simona Vetter 2018-07-04 498 * > 4dd3cdb281f7a3 drivers/dma-buf/dma-fence.c Simona Vetter 2018-07-04 499 * See also dma_fence_wait() and dma_fence_wait_any_timeout(). > e941759c74a44d drivers/dma-buf/fence.c Maarten Lankhorst 2014-07-01 500 */ > e941759c74a44d drivers/dma-buf/fence.c Maarten Lankhorst 2014-07-01 501 signed long > 15fe92c1e1cf69 drivers/dma-buf/dma-fence.c Byungchul Park 2025-05-13 502 __dma_fence_wait_timeout(struct dma_fence *fence, bool intr, signed long timeout) > e941759c74a44d drivers/dma-buf/fence.c Maarten Lankhorst 2014-07-01 @503 { > e941759c74a44d drivers/dma-buf/fence.c Maarten Lankhorst 2014-07-01 504 signed long ret; > e941759c74a44d drivers/dma-buf/fence.c Maarten Lankhorst 2014-07-01 505 > e941759c74a44d drivers/dma-buf/fence.c Maarten Lankhorst 2014-07-01 506 if (WARN_ON(timeout < 0)) > e941759c74a44d drivers/dma-buf/fence.c Maarten Lankhorst 2014-07-01 507 return -EINVAL; > e941759c74a44d drivers/dma-buf/fence.c Maarten Lankhorst 2014-07-01 508 > ef8255506f6682 drivers/dma-buf/dma-fence.c Simona Vetter 2020-05-19 509 might_sleep(); > ef8255506f6682 drivers/dma-buf/dma-fence.c Simona Vetter 2020-05-19 510 > 5fbff813a4a328 drivers/dma-buf/dma-fence.c Simona Vetter 2020-07-07 511 __dma_fence_might_wait(); > 5fbff813a4a328 drivers/dma-buf/dma-fence.c Simona Vetter 2020-07-07 512 > b96fb1e724ae68 drivers/dma-buf/dma-fence.c Arvind Yadav 2022-09-14 513 dma_fence_enable_sw_signaling(fence); > b96fb1e724ae68 drivers/dma-buf/dma-fence.c Arvind Yadav 2022-09-14 514 > f54d1867005c33 drivers/dma-buf/dma-fence.c Chris Wilson 2016-10-25 515 trace_dma_fence_wait_start(fence); > 418cc6ca06071e drivers/dma-buf/dma-fence.c Simona Vetter 2018-05-03 516 if (fence->ops->wait) > e941759c74a44d drivers/dma-buf/fence.c Maarten Lankhorst 2014-07-01 517 ret = fence->ops->wait(fence, intr, timeout); > 418cc6ca06071e drivers/dma-buf/dma-fence.c Simona Vetter 2018-05-03 518 else > 418cc6ca06071e drivers/dma-buf/dma-fence.c Simona Vetter 2018-05-03 519 ret = dma_fence_default_wait(fence, intr, timeout); > f54d1867005c33 drivers/dma-buf/dma-fence.c Chris Wilson 2016-10-25 520 trace_dma_fence_wait_end(fence); > e941759c74a44d drivers/dma-buf/fence.c Maarten Lankhorst 2014-07-01 521 return ret; > e941759c74a44d drivers/dma-buf/fence.c Maarten Lankhorst 2014-07-01 522 } > 15fe92c1e1cf69 drivers/dma-buf/dma-fence.c Byungchul Park 2025-05-13 523 EXPORT_SYMBOL(__dma_fence_wait_timeout); > e941759c74a44d drivers/dma-buf/fence.c Maarten Lankhorst 2014-07-01 524 > > -- > 0-DAY CI Kernel Test Service > https://github.com/intel/lkp-tests/wiki
