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[openeuler:OLK-6.6 3508/3508] htmldocs: ./include/drm/drm_client.h:121: warning: Function parameter or member 'KABI_RESERVE(1' not described in 'drm_client_dev'
by kernel test robot 11 Dec '25

11 Dec '25

tree: https://gitee.com/openeuler/kernel.git OLK-6.6 head: 423fccda72fc2b78107cc119a1755d968c2c36de commit: 1658eb12c6b6bbcff49c2e8fa1fc13f32bd45ee4 [3508/3508] drm: drm_client.h: Add kabi_reserve reproduce: (https://download.01.org/0day-ci/archive/20251211/202512110521.WzYXo1Tx-lkp@…) 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(a)intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202512110521.WzYXo1Tx-lkp@intel.com/ All warnings (new ones prefixed by >>): ./drivers/gpu/drm/amd/display/dc/inc/hw/mpc.h:109: warning: Function parameter or member 'top_gain' not described in 'mpcc_blnd_cfg' ./drivers/gpu/drm/amd/display/dc/inc/hw/mpc.h:109: warning: Function parameter or member 'bottom_inside_gain' not described in 'mpcc_blnd_cfg' ./drivers/gpu/drm/amd/display/dc/inc/hw/mpc.h:109: warning: Function parameter or member 'bottom_outside_gain' not described in 'mpcc_blnd_cfg' Error: Cannot open file ./include/linux/backlight.h Error: Cannot open file ./include/linux/backlight.h >> ./include/drm/drm_client.h:121: warning: Function parameter or member 'KABI_RESERVE(1' not described in 'drm_client_dev' >> ./include/drm/drm_client.h:163: warning: Function parameter or member 'KABI_RESERVE(1' not described in 'drm_client_buffer' ./include/drm/drm_atomic.h:246: warning: Function parameter or member 'KABI_RESERVE(1' not described in 'drm_private_state_funcs' ./include/drm/drm_atomic.h:347: warning: Function parameter or member 'KABI_RESERVE(1' not described in 'drm_private_state' ./include/drm/drm_connector.h:527: warning: Enum value 'DRM_MODE_COLORIMETRY_COUNT' not described in enum 'drm_colorspace' Error: Cannot open file ./include/linux/hdmi.h Error: Cannot open file ./include/linux/hdmi.h vim +121 ./include/drm/drm_client.h c76f0f7cb546b6 Noralf Trønnes 2018-07-03 68 c76f0f7cb546b6 Noralf Trønnes 2018-07-03 69 /** c76f0f7cb546b6 Noralf Trønnes 2018-07-03 70 * struct drm_client_dev - DRM client instance c76f0f7cb546b6 Noralf Trønnes 2018-07-03 71 */ c76f0f7cb546b6 Noralf Trønnes 2018-07-03 72 struct drm_client_dev { c76f0f7cb546b6 Noralf Trønnes 2018-07-03 73 /** c76f0f7cb546b6 Noralf Trønnes 2018-07-03 74 * @dev: DRM device c76f0f7cb546b6 Noralf Trønnes 2018-07-03 75 */ c76f0f7cb546b6 Noralf Trønnes 2018-07-03 76 struct drm_device *dev; c76f0f7cb546b6 Noralf Trønnes 2018-07-03 77 c76f0f7cb546b6 Noralf Trønnes 2018-07-03 78 /** c76f0f7cb546b6 Noralf Trønnes 2018-07-03 79 * @name: Name of the client. c76f0f7cb546b6 Noralf Trønnes 2018-07-03 80 */ c76f0f7cb546b6 Noralf Trønnes 2018-07-03 81 const char *name; c76f0f7cb546b6 Noralf Trønnes 2018-07-03 82 c76f0f7cb546b6 Noralf Trønnes 2018-07-03 83 /** c76f0f7cb546b6 Noralf Trønnes 2018-07-03 84 * @list: c76f0f7cb546b6 Noralf Trønnes 2018-07-03 85 * c76f0f7cb546b6 Noralf Trønnes 2018-07-03 86 * List of all clients of a DRM device, linked into c76f0f7cb546b6 Noralf Trønnes 2018-07-03 87 * &drm_device.clientlist. Protected by &drm_device.clientlist_mutex. c76f0f7cb546b6 Noralf Trønnes 2018-07-03 88 */ c76f0f7cb546b6 Noralf Trønnes 2018-07-03 89 struct list_head list; c76f0f7cb546b6 Noralf Trønnes 2018-07-03 90 c76f0f7cb546b6 Noralf Trønnes 2018-07-03 91 /** c76f0f7cb546b6 Noralf Trønnes 2018-07-03 92 * @funcs: DRM client functions (optional) c76f0f7cb546b6 Noralf Trønnes 2018-07-03 93 */ c76f0f7cb546b6 Noralf Trønnes 2018-07-03 94 const struct drm_client_funcs *funcs; c76f0f7cb546b6 Noralf Trønnes 2018-07-03 95 c76f0f7cb546b6 Noralf Trønnes 2018-07-03 96 /** c76f0f7cb546b6 Noralf Trønnes 2018-07-03 97 * @file: DRM file c76f0f7cb546b6 Noralf Trønnes 2018-07-03 98 */ c76f0f7cb546b6 Noralf Trønnes 2018-07-03 99 struct drm_file *file; d81294afeecdac Noralf Trønnes 2019-05-31 100 d81294afeecdac Noralf Trønnes 2019-05-31 101 /** d81294afeecdac Noralf Trønnes 2019-05-31 102 * @modeset_mutex: Protects @modesets. d81294afeecdac Noralf Trønnes 2019-05-31 103 */ d81294afeecdac Noralf Trønnes 2019-05-31 104 struct mutex modeset_mutex; d81294afeecdac Noralf Trønnes 2019-05-31 105 d81294afeecdac Noralf Trønnes 2019-05-31 106 /** d81294afeecdac Noralf Trønnes 2019-05-31 107 * @modesets: CRTC configurations d81294afeecdac Noralf Trønnes 2019-05-31 108 */ d81294afeecdac Noralf Trønnes 2019-05-31 109 struct drm_mode_set *modesets; 6a9d5ad3af65a1 Thomas Zimmermann 2023-01-25 110 6a9d5ad3af65a1 Thomas Zimmermann 2023-01-25 111 /** 84cc4c7aecc4c6 Randy Dunlap 2023-01-30 112 * @hotplug_failed: 6a9d5ad3af65a1 Thomas Zimmermann 2023-01-25 113 * 6a9d5ad3af65a1 Thomas Zimmermann 2023-01-25 114 * Set by client hotplug helpers if the hotplugging failed 6a9d5ad3af65a1 Thomas Zimmermann 2023-01-25 115 * before. It is usually not tried again. 6a9d5ad3af65a1 Thomas Zimmermann 2023-01-25 116 */ 6a9d5ad3af65a1 Thomas Zimmermann 2023-01-25 117 bool hotplug_failed; 1658eb12c6b6bb Lin Yujun 2024-02-04 118 1658eb12c6b6bb Lin Yujun 2024-02-04 119 KABI_RESERVE(1) 1658eb12c6b6bb Lin Yujun 2024-02-04 120 KABI_RESERVE(2) c76f0f7cb546b6 Noralf Trønnes 2018-07-03 @121 }; c76f0f7cb546b6 Noralf Trønnes 2018-07-03 122 4d4c2d89913e2d Noralf Trønnes 2018-10-01 123 int drm_client_init(struct drm_device *dev, struct drm_client_dev *client, c76f0f7cb546b6 Noralf Trønnes 2018-07-03 124 const char *name, const struct drm_client_funcs *funcs); c76f0f7cb546b6 Noralf Trønnes 2018-07-03 125 void drm_client_release(struct drm_client_dev *client); e33898a20744de Noralf Trønnes 2019-04-03 126 void drm_client_register(struct drm_client_dev *client); c76f0f7cb546b6 Noralf Trønnes 2018-07-03 127 c76f0f7cb546b6 Noralf Trønnes 2018-07-03 128 void drm_client_dev_unregister(struct drm_device *dev); c76f0f7cb546b6 Noralf Trønnes 2018-07-03 129 void drm_client_dev_hotplug(struct drm_device *dev); c76f0f7cb546b6 Noralf Trønnes 2018-07-03 130 void drm_client_dev_restore(struct drm_device *dev); c76f0f7cb546b6 Noralf Trønnes 2018-07-03 131 c76f0f7cb546b6 Noralf Trønnes 2018-07-03 132 /** c76f0f7cb546b6 Noralf Trønnes 2018-07-03 133 * struct drm_client_buffer - DRM client buffer c76f0f7cb546b6 Noralf Trønnes 2018-07-03 134 */ c76f0f7cb546b6 Noralf Trønnes 2018-07-03 135 struct drm_client_buffer { c76f0f7cb546b6 Noralf Trønnes 2018-07-03 136 /** c76f0f7cb546b6 Noralf Trønnes 2018-07-03 137 * @client: DRM client c76f0f7cb546b6 Noralf Trønnes 2018-07-03 138 */ c76f0f7cb546b6 Noralf Trønnes 2018-07-03 139 struct drm_client_dev *client; c76f0f7cb546b6 Noralf Trønnes 2018-07-03 140 c76f0f7cb546b6 Noralf Trønnes 2018-07-03 141 /** c76f0f7cb546b6 Noralf Trønnes 2018-07-03 142 * @pitch: Buffer pitch c76f0f7cb546b6 Noralf Trønnes 2018-07-03 143 */ c76f0f7cb546b6 Noralf Trønnes 2018-07-03 144 u32 pitch; c76f0f7cb546b6 Noralf Trønnes 2018-07-03 145 c76f0f7cb546b6 Noralf Trønnes 2018-07-03 146 /** c76f0f7cb546b6 Noralf Trønnes 2018-07-03 147 * @gem: GEM object backing this buffer c76f0f7cb546b6 Noralf Trønnes 2018-07-03 148 */ c76f0f7cb546b6 Noralf Trønnes 2018-07-03 149 struct drm_gem_object *gem; c76f0f7cb546b6 Noralf Trønnes 2018-07-03 150 c76f0f7cb546b6 Noralf Trønnes 2018-07-03 151 /** a85955568939e2 Thomas Zimmermann 2020-11-03 152 * @map: Virtual address for the buffer c76f0f7cb546b6 Noralf Trønnes 2018-07-03 153 */ 7938f4218168ae Lucas De Marchi 2022-02-04 154 struct iosys_map map; c76f0f7cb546b6 Noralf Trønnes 2018-07-03 155 c76f0f7cb546b6 Noralf Trønnes 2018-07-03 156 /** c76f0f7cb546b6 Noralf Trønnes 2018-07-03 157 * @fb: DRM framebuffer c76f0f7cb546b6 Noralf Trønnes 2018-07-03 158 */ c76f0f7cb546b6 Noralf Trønnes 2018-07-03 159 struct drm_framebuffer *fb; 1658eb12c6b6bb Lin Yujun 2024-02-04 160 1658eb12c6b6bb Lin Yujun 2024-02-04 161 KABI_RESERVE(1) 1658eb12c6b6bb Lin Yujun 2024-02-04 162 KABI_RESERVE(2) c76f0f7cb546b6 Noralf Trønnes 2018-07-03 @163 }; c76f0f7cb546b6 Noralf Trønnes 2018-07-03 164 :::::: The code at line 121 was first introduced by commit :::::: c76f0f7cb546b661b5e0ac769850a5c854927f65 drm: Begin an API for in-kernel clients :::::: TO: Noralf Trønnes <noralf(a)tronnes.org> :::::: CC: Noralf Trønnes <noralf(a)tronnes.org> -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

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[openeuler:OLK-6.6 3534/3534] kernel/locking/mutex.c:623:6: warning: variable 'ifs_clock' is used uninitialized whenever 'if' condition is true
by kernel test robot 11 Dec '25

11 Dec '25

Hi Pu, FYI, the error/warning still remains. tree: https://gitee.com/openeuler/kernel.git OLK-6.6 head: 5930fa3740c518a9f6ba688fd0c1873d6f3adbce commit: a1ad9b2ed459a3e3a4a2de50e03f53036fc7ec96 [3534/3534] interference: Add mutex interference track support config: x86_64-buildonly-randconfig-006-20251211 (https://download.01.org/0day-ci/archive/20251211/202512111243.5gbg71Im-lkp@…) compiler: clang version 20.1.8 (https://github.com/llvm/llvm-project 87f0227cb60147a26a1eeb4fb06e3b505e9c7261) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251211/202512111243.5gbg71Im-lkp@…) 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(a)intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202512111243.5gbg71Im-lkp@intel.com/ All warnings (new ones prefixed by >>): >> kernel/locking/mutex.c:623:6: warning: variable 'ifs_clock' is used uninitialized whenever 'if' condition is true [-Wsometimes-uninitialized] 623 | if (__mutex_trylock(lock)) { | ^~~~~~~~~~~~~~~~~~~~~ kernel/locking/mutex.c:725:24: note: uninitialized use occurs here 725 | cgroup_ifs_leave_lock(ifs_clock, IFS_MUTEX); | ^~~~~~~~~ kernel/locking/mutex.c:623:2: note: remove the 'if' if its condition is always false 623 | if (__mutex_trylock(lock)) { | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~ 624 | if (ww_ctx) | ~~~~~~~~~~~ 625 | __ww_mutex_check_waiters(lock, ww_ctx); | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 626 | 627 | goto skip_wait; | ~~~~~~~~~~~~~~~ 628 | } | ~ kernel/locking/mutex.c:576:15: note: initialize the variable 'ifs_clock' to silence this warning 576 | u64 ifs_clock; | ^ | = 0 1 warning generated. vim +623 kernel/locking/mutex.c 040a0a37100563 kernel/mutex.c Maarten Lankhorst 2013-06-24 565 040a0a37100563 kernel/mutex.c Maarten Lankhorst 2013-06-24 566 /* 040a0a37100563 kernel/mutex.c Maarten Lankhorst 2013-06-24 567 * Lock a mutex (possibly interruptible), slowpath: 040a0a37100563 kernel/mutex.c Maarten Lankhorst 2013-06-24 568 */ 040a0a37100563 kernel/mutex.c Maarten Lankhorst 2013-06-24 569 static __always_inline int __sched 2f064a59a11ff9 kernel/locking/mutex.c Peter Zijlstra 2021-06-11 570 __mutex_lock_common(struct mutex *lock, unsigned int state, unsigned int subclass, 040a0a37100563 kernel/mutex.c Maarten Lankhorst 2013-06-24 571 struct lockdep_map *nest_lock, unsigned long ip, b0267507dfd018 kernel/mutex.c Tetsuo Handa 2013-10-17 572 struct ww_acquire_ctx *ww_ctx, const bool use_ww_ctx) 6053ee3b32e343 kernel/mutex.c Ingo Molnar 2006-01-09 573 { 6053ee3b32e343 kernel/mutex.c Ingo Molnar 2006-01-09 574 struct mutex_waiter waiter; a40ca56577f628 kernel/locking/mutex.c Waiman Long 2016-08-26 575 struct ww_mutex *ww; a1ad9b2ed459a3 kernel/locking/mutex.c Pu Lehui 2025-07-16 576 u64 ifs_clock; 040a0a37100563 kernel/mutex.c Maarten Lankhorst 2013-06-24 577 int ret; 6053ee3b32e343 kernel/mutex.c Ingo Molnar 2006-01-09 578 5de2055d31ea88 kernel/locking/mutex.c Waiman Long 2021-03-16 579 if (!use_ww_ctx) 5de2055d31ea88 kernel/locking/mutex.c Waiman Long 2021-03-16 580 ww_ctx = NULL; 5de2055d31ea88 kernel/locking/mutex.c Waiman Long 2021-03-16 581 427b18207a87f6 kernel/locking/mutex.c Peter Zijlstra 2016-12-23 582 might_sleep(); ea9e0fb8fe1bdf kernel/locking/mutex.c Nicolai Hähnle 2016-12-21 583 e6b4457b05f36b kernel/locking/mutex.c Peter Zijlstra 2021-06-30 584 MUTEX_WARN_ON(lock->magic != lock); 6c11c6e3d5e9e5 kernel/locking/mutex.c Sebastian Andrzej Siewior 2019-07-03 585 a40ca56577f628 kernel/locking/mutex.c Waiman Long 2016-08-26 586 ww = container_of(lock, struct ww_mutex, base); 5de2055d31ea88 kernel/locking/mutex.c Waiman Long 2021-03-16 587 if (ww_ctx) { 0422e83d84ae24 kernel/locking/mutex.c Chris Wilson 2016-05-26 588 if (unlikely(ww_ctx == READ_ONCE(ww->ctx))) 0422e83d84ae24 kernel/locking/mutex.c Chris Wilson 2016-05-26 589 return -EALREADY; 08295b3b5beec9 kernel/locking/mutex.c Thomas Hellstrom 2018-06-15 590 08295b3b5beec9 kernel/locking/mutex.c Thomas Hellstrom 2018-06-15 591 /* 08295b3b5beec9 kernel/locking/mutex.c Thomas Hellstrom 2018-06-15 592 * Reset the wounded flag after a kill. No other process can 08295b3b5beec9 kernel/locking/mutex.c Thomas Hellstrom 2018-06-15 593 * race and wound us here since they can't have a valid owner 08295b3b5beec9 kernel/locking/mutex.c Thomas Hellstrom 2018-06-15 594 * pointer if we don't have any locks held. 08295b3b5beec9 kernel/locking/mutex.c Thomas Hellstrom 2018-06-15 595 */ 08295b3b5beec9 kernel/locking/mutex.c Thomas Hellstrom 2018-06-15 596 if (ww_ctx->acquired == 0) 08295b3b5beec9 kernel/locking/mutex.c Thomas Hellstrom 2018-06-15 597 ww_ctx->wounded = 0; cf702eddcd03dc kernel/locking/mutex.c Peter Zijlstra 2021-08-15 598 cf702eddcd03dc kernel/locking/mutex.c Peter Zijlstra 2021-08-15 599 #ifdef CONFIG_DEBUG_LOCK_ALLOC cf702eddcd03dc kernel/locking/mutex.c Peter Zijlstra 2021-08-15 600 nest_lock = &ww_ctx->dep_map; cf702eddcd03dc kernel/locking/mutex.c Peter Zijlstra 2021-08-15 601 #endif 0422e83d84ae24 kernel/locking/mutex.c Chris Wilson 2016-05-26 602 } 0422e83d84ae24 kernel/locking/mutex.c Chris Wilson 2016-05-26 603 41719b03091911 kernel/mutex.c Peter Zijlstra 2009-01-14 604 preempt_disable(); e4c70a6629f9c7 kernel/mutex.c Peter Zijlstra 2011-05-24 605 mutex_acquire_nest(&lock->dep_map, subclass, 0, nest_lock, ip); c02260277e4720 kernel/mutex.c Frederic Weisbecker 2009-12-02 606 dc1f7893a70fe4 kernel/locking/mutex.c Peter Zijlstra 2022-03-30 607 trace_contention_begin(lock, LCB_F_MUTEX | LCB_F_SPIN); e274795ea7b7ca kernel/locking/mutex.c Peter Zijlstra 2017-01-11 608 if (__mutex_trylock(lock) || 5de2055d31ea88 kernel/locking/mutex.c Waiman Long 2021-03-16 609 mutex_optimistic_spin(lock, ww_ctx, NULL)) { 76916515d9d84e kernel/locking/mutex.c Davidlohr Bueso 2014-07-30 610 /* got the lock, yay! */ 3ca0ff571b092e kernel/locking/mutex.c Peter Zijlstra 2016-08-23 611 lock_acquired(&lock->dep_map, ip); 5de2055d31ea88 kernel/locking/mutex.c Waiman Long 2021-03-16 612 if (ww_ctx) 3ca0ff571b092e kernel/locking/mutex.c Peter Zijlstra 2016-08-23 613 ww_mutex_set_context_fastpath(ww, ww_ctx); dc1f7893a70fe4 kernel/locking/mutex.c Peter Zijlstra 2022-03-30 614 trace_contention_end(lock, 0); ac6e60ee405aa3 kernel/mutex.c Chris Mason 2009-01-14 615 preempt_enable(); ac6e60ee405aa3 kernel/mutex.c Chris Mason 2009-01-14 616 return 0; ac6e60ee405aa3 kernel/mutex.c Chris Mason 2009-01-14 617 } ac6e60ee405aa3 kernel/mutex.c Chris Mason 2009-01-14 618 ebf4c55c1ddbab kernel/locking/mutex.c Thomas Gleixner 2021-08-15 619 raw_spin_lock(&lock->wait_lock); 1e820c9608eace kernel/locking/mutex.c Jason Low 2014-06-11 620 /* 3ca0ff571b092e kernel/locking/mutex.c Peter Zijlstra 2016-08-23 621 * After waiting to acquire the wait_lock, try again. 1e820c9608eace kernel/locking/mutex.c Jason Low 2014-06-11 622 */ 659cf9f5824a12 kernel/locking/mutex.c Nicolai Hähnle 2016-12-21 @623 if (__mutex_trylock(lock)) { 5de2055d31ea88 kernel/locking/mutex.c Waiman Long 2021-03-16 624 if (ww_ctx) 55f036ca7e74b8 kernel/locking/mutex.c Peter Ziljstra 2018-06-15 625 __ww_mutex_check_waiters(lock, ww_ctx); 659cf9f5824a12 kernel/locking/mutex.c Nicolai Hähnle 2016-12-21 626 ec83f425dbca47 kernel/mutex.c Davidlohr Bueso 2013-06-28 627 goto skip_wait; 659cf9f5824a12 kernel/locking/mutex.c Nicolai Hähnle 2016-12-21 628 } ec83f425dbca47 kernel/mutex.c Davidlohr Bueso 2013-06-28 629 9a11b49a805665 kernel/mutex.c Ingo Molnar 2006-07-03 630 debug_mutex_lock_common(lock, &waiter); c0afb0ffc06e6b kernel/locking/mutex.c Peter Zijlstra 2021-08-15 631 waiter.task = current; b857174e68e26f kernel/locking/mutex.c Sebastian Andrzej Siewior 2021-08-19 632 if (use_ww_ctx) c0afb0ffc06e6b kernel/locking/mutex.c Peter Zijlstra 2021-08-15 633 waiter.ww_ctx = ww_ctx; 6053ee3b32e343 kernel/mutex.c Ingo Molnar 2006-01-09 634 6baa5c60a97d7f kernel/locking/mutex.c Nicolai Hähnle 2016-12-21 635 lock_contended(&lock->dep_map, ip); 6053ee3b32e343 kernel/mutex.c Ingo Molnar 2006-01-09 636 6baa5c60a97d7f kernel/locking/mutex.c Nicolai Hähnle 2016-12-21 637 if (!use_ww_ctx) { 6053ee3b32e343 kernel/mutex.c Ingo Molnar 2006-01-09 638 /* add waiting tasks to the end of the waitqueue (FIFO): */ 08295b3b5beec9 kernel/locking/mutex.c Thomas Hellstrom 2018-06-15 639 __mutex_add_waiter(lock, &waiter, &lock->wait_list); 6baa5c60a97d7f kernel/locking/mutex.c Nicolai Hähnle 2016-12-21 640 } else { 55f036ca7e74b8 kernel/locking/mutex.c Peter Ziljstra 2018-06-15 641 /* 55f036ca7e74b8 kernel/locking/mutex.c Peter Ziljstra 2018-06-15 642 * Add in stamp order, waking up waiters that must kill 55f036ca7e74b8 kernel/locking/mutex.c Peter Ziljstra 2018-06-15 643 * themselves. 55f036ca7e74b8 kernel/locking/mutex.c Peter Ziljstra 2018-06-15 644 */ 6baa5c60a97d7f kernel/locking/mutex.c Nicolai Hähnle 2016-12-21 645 ret = __ww_mutex_add_waiter(&waiter, lock, ww_ctx); 6baa5c60a97d7f kernel/locking/mutex.c Nicolai Hähnle 2016-12-21 646 if (ret) 55f036ca7e74b8 kernel/locking/mutex.c Peter Ziljstra 2018-06-15 647 goto err_early_kill; 6baa5c60a97d7f kernel/locking/mutex.c Nicolai Hähnle 2016-12-21 648 } 6baa5c60a97d7f kernel/locking/mutex.c Nicolai Hähnle 2016-12-21 649 642fa448ae6b3a kernel/locking/mutex.c Davidlohr Bueso 2017-01-03 650 set_current_state(state); dc1f7893a70fe4 kernel/locking/mutex.c Peter Zijlstra 2022-03-30 651 trace_contention_begin(lock, LCB_F_MUTEX); a1ad9b2ed459a3 kernel/locking/mutex.c Pu Lehui 2025-07-16 652 cgroup_ifs_enter_lock(&ifs_clock); 6053ee3b32e343 kernel/mutex.c Ingo Molnar 2006-01-09 653 for (;;) { 048661a1f963e9 kernel/locking/mutex.c Peter Zijlstra 2021-06-30 654 bool first; 048661a1f963e9 kernel/locking/mutex.c Peter Zijlstra 2021-06-30 655 5bbd7e64437833 kernel/locking/mutex.c Peter Zijlstra 2016-09-02 656 /* 5bbd7e64437833 kernel/locking/mutex.c Peter Zijlstra 2016-09-02 657 * Once we hold wait_lock, we're serialized against 5bbd7e64437833 kernel/locking/mutex.c Peter Zijlstra 2016-09-02 658 * mutex_unlock() handing the lock off to us, do a trylock 5bbd7e64437833 kernel/locking/mutex.c Peter Zijlstra 2016-09-02 659 * before testing the error conditions to make sure we pick up 5bbd7e64437833 kernel/locking/mutex.c Peter Zijlstra 2016-09-02 660 * the handoff. 5bbd7e64437833 kernel/locking/mutex.c Peter Zijlstra 2016-09-02 661 */ e274795ea7b7ca kernel/locking/mutex.c Peter Zijlstra 2017-01-11 662 if (__mutex_trylock(lock)) 5bbd7e64437833 kernel/locking/mutex.c Peter Zijlstra 2016-09-02 663 goto acquired; 6053ee3b32e343 kernel/mutex.c Ingo Molnar 2006-01-09 664 6053ee3b32e343 kernel/mutex.c Ingo Molnar 2006-01-09 665 /* 55f036ca7e74b8 kernel/locking/mutex.c Peter Ziljstra 2018-06-15 666 * Check for signals and kill conditions while holding 5bbd7e64437833 kernel/locking/mutex.c Peter Zijlstra 2016-09-02 667 * wait_lock. This ensures the lock cancellation is ordered 5bbd7e64437833 kernel/locking/mutex.c Peter Zijlstra 2016-09-02 668 * against mutex_unlock() and wake-ups do not go missing. 6053ee3b32e343 kernel/mutex.c Ingo Molnar 2006-01-09 669 */ 3bb5f4ac55dd91 kernel/locking/mutex.c Davidlohr Bueso 2019-01-03 670 if (signal_pending_state(state, current)) { 040a0a37100563 kernel/mutex.c Maarten Lankhorst 2013-06-24 671 ret = -EINTR; 040a0a37100563 kernel/mutex.c Maarten Lankhorst 2013-06-24 672 goto err; 040a0a37100563 kernel/mutex.c Maarten Lankhorst 2013-06-24 673 } 6053ee3b32e343 kernel/mutex.c Ingo Molnar 2006-01-09 674 5de2055d31ea88 kernel/locking/mutex.c Waiman Long 2021-03-16 675 if (ww_ctx) { 55f036ca7e74b8 kernel/locking/mutex.c Peter Ziljstra 2018-06-15 676 ret = __ww_mutex_check_kill(lock, &waiter, ww_ctx); 040a0a37100563 kernel/mutex.c Maarten Lankhorst 2013-06-24 677 if (ret) 040a0a37100563 kernel/mutex.c Maarten Lankhorst 2013-06-24 678 goto err; 6053ee3b32e343 kernel/mutex.c Ingo Molnar 2006-01-09 679 } 040a0a37100563 kernel/mutex.c Maarten Lankhorst 2013-06-24 680 ebf4c55c1ddbab kernel/locking/mutex.c Thomas Gleixner 2021-08-15 681 raw_spin_unlock(&lock->wait_lock); bd2f55361f1834 kernel/mutex.c Thomas Gleixner 2011-03-21 682 schedule_preempt_disabled(); 9d659ae14b545c kernel/locking/mutex.c Peter Zijlstra 2016-08-23 683 6baa5c60a97d7f kernel/locking/mutex.c Nicolai Hähnle 2016-12-21 684 first = __mutex_waiter_is_first(lock, &waiter); 5bbd7e64437833 kernel/locking/mutex.c Peter Zijlstra 2016-09-02 685 642fa448ae6b3a kernel/locking/mutex.c Davidlohr Bueso 2017-01-03 686 set_current_state(state); 5bbd7e64437833 kernel/locking/mutex.c Peter Zijlstra 2016-09-02 687 /* 5bbd7e64437833 kernel/locking/mutex.c Peter Zijlstra 2016-09-02 688 * Here we order against unlock; we must either see it change 5bbd7e64437833 kernel/locking/mutex.c Peter Zijlstra 2016-09-02 689 * state back to RUNNING and fall through the next schedule(), 5bbd7e64437833 kernel/locking/mutex.c Peter Zijlstra 2016-09-02 690 * or we must see its unlock and acquire. 5bbd7e64437833 kernel/locking/mutex.c Peter Zijlstra 2016-09-02 691 */ dc1f7893a70fe4 kernel/locking/mutex.c Peter Zijlstra 2022-03-30 692 if (__mutex_trylock_or_handoff(lock, first)) dc1f7893a70fe4 kernel/locking/mutex.c Peter Zijlstra 2022-03-30 693 break; dc1f7893a70fe4 kernel/locking/mutex.c Peter Zijlstra 2022-03-30 694 dc1f7893a70fe4 kernel/locking/mutex.c Peter Zijlstra 2022-03-30 695 if (first) { dc1f7893a70fe4 kernel/locking/mutex.c Peter Zijlstra 2022-03-30 696 trace_contention_begin(lock, LCB_F_MUTEX | LCB_F_SPIN); dc1f7893a70fe4 kernel/locking/mutex.c Peter Zijlstra 2022-03-30 697 if (mutex_optimistic_spin(lock, ww_ctx, &waiter)) 5bbd7e64437833 kernel/locking/mutex.c Peter Zijlstra 2016-09-02 698 break; dc1f7893a70fe4 kernel/locking/mutex.c Peter Zijlstra 2022-03-30 699 trace_contention_begin(lock, LCB_F_MUTEX); dc1f7893a70fe4 kernel/locking/mutex.c Peter Zijlstra 2022-03-30 700 } 5bbd7e64437833 kernel/locking/mutex.c Peter Zijlstra 2016-09-02 701 ebf4c55c1ddbab kernel/locking/mutex.c Thomas Gleixner 2021-08-15 702 raw_spin_lock(&lock->wait_lock); 6053ee3b32e343 kernel/mutex.c Ingo Molnar 2006-01-09 703 } ebf4c55c1ddbab kernel/locking/mutex.c Thomas Gleixner 2021-08-15 704 raw_spin_lock(&lock->wait_lock); 5bbd7e64437833 kernel/locking/mutex.c Peter Zijlstra 2016-09-02 705 acquired: 642fa448ae6b3a kernel/locking/mutex.c Davidlohr Bueso 2017-01-03 706 __set_current_state(TASK_RUNNING); 51587bcf31d070 kernel/locking/mutex.c Davidlohr Bueso 2015-01-19 707 5de2055d31ea88 kernel/locking/mutex.c Waiman Long 2021-03-16 708 if (ww_ctx) { 08295b3b5beec9 kernel/locking/mutex.c Thomas Hellstrom 2018-06-15 709 /* 08295b3b5beec9 kernel/locking/mutex.c Thomas Hellstrom 2018-06-15 710 * Wound-Wait; we stole the lock (!first_waiter), check the 08295b3b5beec9 kernel/locking/mutex.c Thomas Hellstrom 2018-06-15 711 * waiters as anyone might want to wound us. 08295b3b5beec9 kernel/locking/mutex.c Thomas Hellstrom 2018-06-15 712 */ 08295b3b5beec9 kernel/locking/mutex.c Thomas Hellstrom 2018-06-15 713 if (!ww_ctx->is_wait_die && 08295b3b5beec9 kernel/locking/mutex.c Thomas Hellstrom 2018-06-15 714 !__mutex_waiter_is_first(lock, &waiter)) 08295b3b5beec9 kernel/locking/mutex.c Thomas Hellstrom 2018-06-15 715 __ww_mutex_check_waiters(lock, ww_ctx); 08295b3b5beec9 kernel/locking/mutex.c Thomas Hellstrom 2018-06-15 716 } 08295b3b5beec9 kernel/locking/mutex.c Thomas Hellstrom 2018-06-15 717 3a010c493271f0 kernel/locking/mutex.c Zqiang 2021-05-17 718 __mutex_remove_waiter(lock, &waiter); 3ca0ff571b092e kernel/locking/mutex.c Peter Zijlstra 2016-08-23 719 ec83f425dbca47 kernel/mutex.c Davidlohr Bueso 2013-06-28 720 debug_mutex_free_waiter(&waiter); 6053ee3b32e343 kernel/mutex.c Ingo Molnar 2006-01-09 721 ec83f425dbca47 kernel/mutex.c Davidlohr Bueso 2013-06-28 722 skip_wait: ec83f425dbca47 kernel/mutex.c Davidlohr Bueso 2013-06-28 723 /* got the lock - cleanup and rejoice! */ c7e78cff6b7518 kernel/mutex.c Peter Zijlstra 2008-10-16 724 lock_acquired(&lock->dep_map, ip); a1ad9b2ed459a3 kernel/locking/mutex.c Pu Lehui 2025-07-16 725 cgroup_ifs_leave_lock(ifs_clock, IFS_MUTEX); ee042be16cb455 kernel/locking/mutex.c Namhyung Kim 2022-03-22 726 trace_contention_end(lock, 0); 6053ee3b32e343 kernel/mutex.c Ingo Molnar 2006-01-09 727 5de2055d31ea88 kernel/locking/mutex.c Waiman Long 2021-03-16 728 if (ww_ctx) 55f036ca7e74b8 kernel/locking/mutex.c Peter Ziljstra 2018-06-15 729 ww_mutex_lock_acquired(ww, ww_ctx); 040a0a37100563 kernel/mutex.c Maarten Lankhorst 2013-06-24 730 ebf4c55c1ddbab kernel/locking/mutex.c Thomas Gleixner 2021-08-15 731 raw_spin_unlock(&lock->wait_lock); 41719b03091911 kernel/mutex.c Peter Zijlstra 2009-01-14 732 preempt_enable(); 6053ee3b32e343 kernel/mutex.c Ingo Molnar 2006-01-09 733 return 0; 040a0a37100563 kernel/mutex.c Maarten Lankhorst 2013-06-24 734 040a0a37100563 kernel/mutex.c Maarten Lankhorst 2013-06-24 735 err: 642fa448ae6b3a kernel/locking/mutex.c Davidlohr Bueso 2017-01-03 736 __set_current_state(TASK_RUNNING); 3a010c493271f0 kernel/locking/mutex.c Zqiang 2021-05-17 737 __mutex_remove_waiter(lock, &waiter); 55f036ca7e74b8 kernel/locking/mutex.c Peter Ziljstra 2018-06-15 738 err_early_kill: a1ad9b2ed459a3 kernel/locking/mutex.c Pu Lehui 2025-07-16 739 cgroup_ifs_leave_lock(ifs_clock, IFS_MUTEX); dc1f7893a70fe4 kernel/locking/mutex.c Peter Zijlstra 2022-03-30 740 trace_contention_end(lock, ret); ebf4c55c1ddbab kernel/locking/mutex.c Thomas Gleixner 2021-08-15 741 raw_spin_unlock(&lock->wait_lock); 040a0a37100563 kernel/mutex.c Maarten Lankhorst 2013-06-24 742 debug_mutex_free_waiter(&waiter); 5facae4f3549b5 kernel/locking/mutex.c Qian Cai 2019-09-19 743 mutex_release(&lock->dep_map, ip); 040a0a37100563 kernel/mutex.c Maarten Lankhorst 2013-06-24 744 preempt_enable(); 040a0a37100563 kernel/mutex.c Maarten Lankhorst 2013-06-24 745 return ret; 6053ee3b32e343 kernel/mutex.c Ingo Molnar 2006-01-09 746 } 6053ee3b32e343 kernel/mutex.c Ingo Molnar 2006-01-09 747 :::::: The code at line 623 was first introduced by commit :::::: 659cf9f5824a12e6b50785e4e9cf1adf8a3adbd0 locking/ww_mutex: Optimize ww-mutexes by waking at most one waiter for backoff when acquiring the lock :::::: TO: Nicolai Hähnle <Nicolai.Haehnle(a)amd.com> :::::: CC: Ingo Molnar <mingo(a)kernel.org> -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

1 0

[PATCH openEuler-26.09] just use test patch2pr
by Coopermassaki 11 Dec '25

11 Dec '25

--- README | 1 + 1 file changed, 1 insertion(+) diff --git a/README b/README index 669ac7c32292..e27b37bdb455 100644 --- a/README +++ b/README @@ -16,3 +16,4 @@ several of them using the Restructured Text markup notation. Please read the Documentation/process/changes.rst file, as it contains the requirements for building and running the kernel, and information about the problems which may result by upgrading your kernel. +JUST TEST -- 2.34.1

1 0

[openeuler:OLK-6.6 3534/3534] block/blk-ioinf.c:530:60: error: array has incomplete element type 'const struct blk_mq_debugfs_attr'
by kernel test robot 11 Dec '25

11 Dec '25

tree: https://gitee.com/openeuler/kernel.git OLK-6.6 head: d281438782e3c28a3df71a64513a3312d43dcf01 commit: 4192ef0b07762c6dabf617654df442fecffe8510 [3534/3534] blk-ioinf: add rqos/inflight/stat debufs interface config: x86_64-randconfig-r071-20251211 (https://download.01.org/0day-ci/archive/20251211/202512111132.APojgRTS-lkp@…) compiler: clang version 20.1.8 (https://github.com/llvm/llvm-project 87f0227cb60147a26a1eeb4fb06e3b505e9c7261) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251211/202512111132.APojgRTS-lkp@…) 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(a)intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202512111132.APojgRTS-lkp@intel.com/ All errors (new ones prefixed by >>): block/blk-ioinf.c:248:6: warning: no previous prototype for function 'ioinf_done' [-Wmissing-prototypes] 248 | void ioinf_done(struct ioinf *inf, struct ioinf_rq_wait *rqw) | ^ block/blk-ioinf.c:248:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 248 | void ioinf_done(struct ioinf *inf, struct ioinf_rq_wait *rqw) | ^ | static >> block/blk-ioinf.c:530:60: error: array has incomplete element type 'const struct blk_mq_debugfs_attr' 530 | static const struct blk_mq_debugfs_attr ioinf_debugfs_attrs[] = { | ^ block/blk-rq-qos.h:14:8: note: forward declaration of 'struct blk_mq_debugfs_attr' 14 | struct blk_mq_debugfs_attr; | ^ block/blk-ioinf.c:547:5: warning: no previous prototype for function 'ioinf_calc_budget' [-Wmissing-prototypes] 547 | u32 ioinf_calc_budget(struct ioinf_rq_wait *rqw) | ^ block/blk-ioinf.c:547:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 547 | u32 ioinf_calc_budget(struct ioinf_rq_wait *rqw) | ^ | static 2 warnings and 1 error generated. vim +530 block/blk-ioinf.c 529 > 530 static const struct blk_mq_debugfs_attr ioinf_debugfs_attrs[] = { 531 {"stat", 0400, ioinf_stat_show}, 532 {}, 533 }; 534 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

1 0

[openeuler:OLK-6.6 3534/3534] kernel/irq/proc.c:334:13: warning: no previous prototype for function 'register_irqchip_proc'
by kernel test robot 11 Dec '25

11 Dec '25

Hi Jinjie, FYI, the error/warning still remains. tree: https://gitee.com/openeuler/kernel.git OLK-6.6 head: 423fccda72fc2b78107cc119a1755d968c2c36de commit: 3053668e6b211924bb67c19d791a5a532eca2ad8 [3534/3534] arm64: Introduce Xint software solution config: x86_64-randconfig-013-20251211 (https://download.01.org/0day-ci/archive/20251211/202512111142.MddOammZ-lkp@…) compiler: clang version 20.1.8 (https://github.com/llvm/llvm-project 87f0227cb60147a26a1eeb4fb06e3b505e9c7261) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251211/202512111142.MddOammZ-lkp@…) 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(a)intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202512111142.MddOammZ-lkp@intel.com/ All warnings (new ones prefixed by >>): >> kernel/irq/proc.c:334:13: warning: no previous prototype for function 'register_irqchip_proc' [-Wmissing-prototypes] 334 | void __weak register_irqchip_proc(struct irq_desc *desc, void *irqp) { } | ^ kernel/irq/proc.c:334:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 334 | void __weak register_irqchip_proc(struct irq_desc *desc, void *irqp) { } | ^ | static >> kernel/irq/proc.c:335:13: warning: no previous prototype for function 'unregister_irqchip_proc' [-Wmissing-prototypes] 335 | void __weak unregister_irqchip_proc(struct irq_desc *desc) { } | ^ kernel/irq/proc.c:335:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 335 | void __weak unregister_irqchip_proc(struct irq_desc *desc) { } | ^ | static 2 warnings generated. vim +/register_irqchip_proc +334 kernel/irq/proc.c 333 > 334 void __weak register_irqchip_proc(struct irq_desc *desc, void *irqp) { } > 335 void __weak unregister_irqchip_proc(struct irq_desc *desc) { } 336 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

1 0

[openeuler:OLK-6.6 3534/3534] kernel/sched/psi.c:894:13: warning: 'task_is_in_psi_v1' defined but not used
by kernel test robot 11 Dec '25

11 Dec '25

tree: https://gitee.com/openeuler/kernel.git OLK-6.6 head: 423fccda72fc2b78107cc119a1755d968c2c36de commit: 2dfc29e742a07863c2426aea03d5c2c97b558b9d [3534/3534] sched/psi: Export cgroup psi from cgroupv2 to cgroupv1 config: x86_64-buildonly-randconfig-002-20251211 (https://download.01.org/0day-ci/archive/20251211/202512111054.dK8iS8qQ-lkp@…) compiler: gcc-14 (Debian 14.2.0-19) 14.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251211/202512111054.dK8iS8qQ-lkp@…) 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(a)intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202512111054.dK8iS8qQ-lkp@intel.com/ All warnings (new ones prefixed by >>): In file included from kernel/sched/build_utility.c:97: >> kernel/sched/psi.c:894:13: warning: 'task_is_in_psi_v1' defined but not used [-Wunused-function] 894 | static bool task_is_in_psi_v1(void) | ^~~~~~~~~~~~~~~~~ vim +/task_is_in_psi_v1 +894 kernel/sched/psi.c 884 885 #if defined(CONFIG_CGROUP_CPUACCT) && defined(CONFIG_PSI_CGROUP_V1) 886 static bool task_is_in_psi_v1(void) 887 { 888 if (static_branch_likely(&psi_v1_disabled)) 889 return false; 890 891 return !cgroup_subsys_on_dfl(cpuacct_cgrp_subsys); 892 } 893 #else > 894 static bool task_is_in_psi_v1(void) 895 { 896 return false; 897 } 898 #endif 899 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

1 0

[openeuler:OLK-6.6 3508/3508] drivers/ub/urma/ubcore/ubcm/ubmad_datapath.c:141:22: sparse: sparse: symbol 'ubmad_create_rt_work' was not declared. Should it be static?
by kernel test robot 11 Dec '25

11 Dec '25

Hi Wen, First bad commit (maybe != root cause): tree: https://gitee.com/openeuler/kernel.git OLK-6.6 head: 423fccda72fc2b78107cc119a1755d968c2c36de commit: ea9d81b3942d8f0336b9207b594a748e20ec16dd [3508/3508] ubcore: add ubcore_umem and ubcore_tp implementations config: arm64-randconfig-r112-20251210 (https://download.01.org/0day-ci/archive/20251211/202512111041.BvyrUXKy-lkp@…) compiler: aarch64-linux-gcc (GCC) 13.4.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251211/202512111041.BvyrUXKy-lkp@…) 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(a)intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202512111041.BvyrUXKy-lkp@intel.com/ sparse warnings: (new ones prefixed by >>) >> drivers/ub/urma/ubcore/ubcm/ubmad_datapath.c:141:22: sparse: sparse: symbol 'ubmad_create_rt_work' was not declared. Should it be static? >> drivers/ub/urma/ubcore/ubcm/ubmad_datapath.c:530:5: sparse: sparse: symbol 'ubmad_post_send_conn_ack' was not declared. Should it be static? >> drivers/ub/urma/ubcore/ubcm/ubmad_datapath.c:550:5: sparse: sparse: symbol 'ubmad_repost_send_conn_data' was not declared. Should it be static? >> drivers/ub/urma/ubcore/ubcm/ubmad_datapath.c:757:6: sparse: sparse: symbol 'ubmad_process_rx_msn' was not declared. Should it be static? vim +/ubmad_create_rt_work +141 drivers/ub/urma/ubcore/ubcm/ubmad_datapath.c e34a52d4eed891 Wen Chen 2025-11-12 140 e34a52d4eed891 Wen Chen 2025-11-12 @141 struct ubmad_rt_work *ubmad_create_rt_work(struct workqueue_struct *rt_wq, e34a52d4eed891 Wen Chen 2025-11-12 142 struct ubmad_msn_mgr *msn_mgr, e34a52d4eed891 Wen Chen 2025-11-12 143 struct ubmad_msg *msg, e34a52d4eed891 Wen Chen 2025-11-12 144 struct ubmad_tjetty *tjetty, e34a52d4eed891 Wen Chen 2025-11-12 145 struct ubmad_jetty_resource *rsrc) e34a52d4eed891 Wen Chen 2025-11-12 146 { e34a52d4eed891 Wen Chen 2025-11-12 147 struct ubmad_rt_work *rt_work; e34a52d4eed891 Wen Chen 2025-11-12 148 e34a52d4eed891 Wen Chen 2025-11-12 149 rt_work = kzalloc(sizeof(struct ubmad_rt_work), e34a52d4eed891 Wen Chen 2025-11-12 150 GFP_KERNEL); // free in ubmad_rt_work_handler() e34a52d4eed891 Wen Chen 2025-11-12 151 if (IS_ERR_OR_NULL(rt_work)) e34a52d4eed891 Wen Chen 2025-11-12 152 return ERR_PTR(-ENOMEM); e34a52d4eed891 Wen Chen 2025-11-12 153 rt_work->msn = msg->msn; e34a52d4eed891 Wen Chen 2025-11-12 154 rt_work->msn_mgr = msn_mgr; e34a52d4eed891 Wen Chen 2025-11-12 155 rt_work->msg = msg; e34a52d4eed891 Wen Chen 2025-11-12 156 rt_work->tjetty = tjetty; e34a52d4eed891 Wen Chen 2025-11-12 157 rt_work->rsrc = rsrc; e34a52d4eed891 Wen Chen 2025-11-12 158 rt_work->rt_wq = rt_wq; e34a52d4eed891 Wen Chen 2025-11-12 159 rt_work->rt_cnt = 0; e34a52d4eed891 Wen Chen 2025-11-12 160 e34a52d4eed891 Wen Chen 2025-11-12 161 INIT_DELAYED_WORK(&rt_work->delay_work, ubmad_rt_work_handler); e34a52d4eed891 Wen Chen 2025-11-12 162 if (queue_delayed_work(rt_wq, &rt_work->delay_work, e34a52d4eed891 Wen Chen 2025-11-12 163 UBMAD_RETRANSMIT_PERIOD) != true) { e34a52d4eed891 Wen Chen 2025-11-12 164 ubcm_log_err("queue rt work failed\n"); e34a52d4eed891 Wen Chen 2025-11-12 165 kfree(rt_work); e34a52d4eed891 Wen Chen 2025-11-12 166 return NULL; e34a52d4eed891 Wen Chen 2025-11-12 167 } e34a52d4eed891 Wen Chen 2025-11-12 168 e34a52d4eed891 Wen Chen 2025-11-12 169 return rt_work; e34a52d4eed891 Wen Chen 2025-11-12 170 } e34a52d4eed891 Wen Chen 2025-11-12 171 :::::: The code at line 141 was first introduced by commit :::::: e34a52d4eed8912f6dfdc7d68152c45f7a071ca8 ubcore: implement ubcore connection management and messaging feature. :::::: TO: Wen Chen <chenwen54(a)huawei.com> :::::: CC: Yongqiang Guo <guoyongqiang12(a)huawei.com> -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

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[openeuler:OLK-6.6 3534/3534] kernel/dma/contiguous.c:209:13: warning: no previous prototype for function 'is_zhaoxin_kh40000'
by kernel test robot 11 Dec '25

11 Dec '25

Hi leoliu-oc, FYI, the error/warning still remains. tree: https://gitee.com/openeuler/kernel.git OLK-6.6 head: 423fccda72fc2b78107cc119a1755d968c2c36de commit: 8eaba08b2d72718a40cafe3402ab4f26b0dc62eb [3534/3534] x86/cpu/zhaoxin: Encapsulate access to global variables within functions config: x86_64-randconfig-015-20251211 (https://download.01.org/0day-ci/archive/20251211/202512111016.FVDarhlL-lkp@…) compiler: clang version 20.1.8 (https://github.com/llvm/llvm-project 87f0227cb60147a26a1eeb4fb06e3b505e9c7261) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251211/202512111016.FVDarhlL-lkp@…) 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(a)intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202512111016.FVDarhlL-lkp@intel.com/ All warnings (new ones prefixed by >>): In file included from kernel/dma/contiguous.c:48: In file included from include/linux/memblock.h:12: In file included from include/linux/mm.h:2235: include/linux/vmstat.h:508:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion] 508 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~ ^ 509 | item]; | ~~~~ include/linux/vmstat.h:515:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion] 515 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~ ^ 516 | NR_VM_NUMA_EVENT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~~ include/linux/vmstat.h:522:36: warning: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Wenum-enum-conversion] 522 | return node_stat_name(NR_LRU_BASE + lru) + 3; // skip "nr_" | ~~~~~~~~~~~ ^ ~~~ include/linux/vmstat.h:527:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion] 527 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~ ^ 528 | NR_VM_NUMA_EVENT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~~ include/linux/vmstat.h:536:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion] 536 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~ ^ 537 | NR_VM_NUMA_EVENT_ITEMS + | ~~~~~~~~~~~~~~~~~~~~~~ >> kernel/dma/contiguous.c:209:13: warning: no previous prototype for function 'is_zhaoxin_kh40000' [-Wmissing-prototypes] 209 | bool __weak is_zhaoxin_kh40000(void) | ^ kernel/dma/contiguous.c:209:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 209 | bool __weak is_zhaoxin_kh40000(void) | ^ | static kernel/dma/contiguous.c:73:26: warning: unused variable 'size_bytes' [-Wunused-const-variable] 73 | static const phys_addr_t size_bytes __initconst = | ^~~~~~~~~~ 7 warnings generated. vim +/is_zhaoxin_kh40000 +209 kernel/dma/contiguous.c 208 > 209 bool __weak is_zhaoxin_kh40000(void) 210 { 211 return false; 212 } 213 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

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[PATCH openEuler-26.09] just use test patch2pr
by Coopermassaki 11 Dec '25

11 Dec '25

--- README | 1 + 1 file changed, 1 insertion(+) diff --git a/README b/README index 669ac7c32292..e27b37bdb455 100644 --- a/README +++ b/README @@ -16,3 +16,4 @@ several of them using the Restructured Text markup notation. Please read the Documentation/process/changes.rst file, as it contains the requirements for building and running the kernel, and information about the problems which may result by upgrading your kernel. +JUST TEST -- 2.34.1

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[openeuler:OLK-6.6 3529/3529] fs/proc/stat.c:234:18: warning: no previous prototype for function 'bpf_show_all_irqs'
by kernel test robot 11 Dec '25

11 Dec '25

Hi GONG, FYI, the error/warning still remains. tree: https://gitee.com/openeuler/kernel.git OLK-6.6 head: 423fccda72fc2b78107cc119a1755d968c2c36de commit: 19895b9974c36318281e4e18131a2cfb43543ffd [3529/3529] bpf-rvi: Add stat-related misc kfuncs config: x86_64-allyesconfig (https://download.01.org/0day-ci/archive/20251211/202512110945.4orBvyVq-lkp@…) compiler: clang version 20.1.8 (https://github.com/llvm/llvm-project 87f0227cb60147a26a1eeb4fb06e3b505e9c7261) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251211/202512110945.4orBvyVq-lkp@…) 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(a)intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202512110945.4orBvyVq-lkp@intel.com/ All warnings (new ones prefixed by >>): fs/proc/stat.c:224:17: warning: no previous prototype for function 'bpf_get_idle_time' [-Wmissing-prototypes] 224 | __bpf_kfunc u64 bpf_get_idle_time(struct kernel_cpustat *kcs, int cpu) | ^ fs/proc/stat.c:224:13: note: declare 'static' if the function is not intended to be used outside of this translation unit 224 | __bpf_kfunc u64 bpf_get_idle_time(struct kernel_cpustat *kcs, int cpu) | ^ | static fs/proc/stat.c:229:17: warning: no previous prototype for function 'bpf_get_iowait_time' [-Wmissing-prototypes] 229 | __bpf_kfunc u64 bpf_get_iowait_time(struct kernel_cpustat *kcs, int cpu) | ^ fs/proc/stat.c:229:13: note: declare 'static' if the function is not intended to be used outside of this translation unit 229 | __bpf_kfunc u64 bpf_get_iowait_time(struct kernel_cpustat *kcs, int cpu) | ^ | static >> fs/proc/stat.c:234:18: warning: no previous prototype for function 'bpf_show_all_irqs' [-Wmissing-prototypes] 234 | __bpf_kfunc void bpf_show_all_irqs(struct seq_file *p) | ^ fs/proc/stat.c:234:13: note: declare 'static' if the function is not intended to be used outside of this translation unit 234 | __bpf_kfunc void bpf_show_all_irqs(struct seq_file *p) | ^ | static 3 warnings generated. vim +/bpf_show_all_irqs +234 fs/proc/stat.c 233 > 234 __bpf_kfunc void bpf_show_all_irqs(struct seq_file *p) 235 { 236 show_all_irqs(p); 237 } 238 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki

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