From: kernel test robot <lkp@intel.com>
To: xinhui pan <xinhui.pan@amd.com>
Cc: oe-kbuild-all@lists.linux.dev, linux-kernel@vger.kernel.org,
"Christian König " <christian.koenig@amd.com>
Subject: drivers/gpu/drm/ttm/ttm_range_manager.c:144: warning: expecting prototype for ttm_range_man_init(). Prototype was for ttm_range_man_init_nocheck() instead
Date: Tue, 07 Apr 2026 22:56:46 +0800 [thread overview]
Message-ID: <202604072236.QoHpJGwO-lkp@intel.com> (raw)
Hi xinhui,
First bad commit (maybe != root cause):
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: bfe62a454542cfad3379f6ef5680b125f41e20f4
commit: 617d5b34f22c66fe9fc9f150be27f5de1b87ca15 drm/ttm: Try to check if new ttm man out of bounds during compile
date: 4 years, 7 months ago
config: mips-allyesconfig (https://download.01.org/0day-ci/archive/20260407/202604072236.QoHpJGwO-lkp@intel.com/config)
compiler: mips-linux-gcc (GCC) 15.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260407/202604072236.QoHpJGwO-lkp@intel.com/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
| Fixes: 617d5b34f22c ("drm/ttm: Try to check if new ttm man out of bounds during compile")
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202604072236.QoHpJGwO-lkp@intel.com/
All warnings (new ones prefixed by >>):
>> drivers/gpu/drm/ttm/ttm_range_manager.c:144: warning: expecting prototype for ttm_range_man_init(). Prototype was for ttm_range_man_init_nocheck() instead
>> drivers/gpu/drm/ttm/ttm_range_manager.c:178: warning: expecting prototype for ttm_range_man_fini(). Prototype was for ttm_range_man_fini_nocheck() instead
vim +144 drivers/gpu/drm/ttm/ttm_range_manager.c
98399abd52b234 drivers/gpu/drm/ttm/ttm_bo_manager.c Dave Airlie 2020-08-04 129
3eb7d96e941503 drivers/gpu/drm/ttm/ttm_range_manager.c Christian König 2021-04-17 130 /**
3eb7d96e941503 drivers/gpu/drm/ttm/ttm_range_manager.c Christian König 2021-04-17 131 * ttm_range_man_init
3eb7d96e941503 drivers/gpu/drm/ttm/ttm_range_manager.c Christian König 2021-04-17 132 *
3eb7d96e941503 drivers/gpu/drm/ttm/ttm_range_manager.c Christian König 2021-04-17 133 * @bdev: ttm device
3eb7d96e941503 drivers/gpu/drm/ttm/ttm_range_manager.c Christian König 2021-04-17 134 * @type: memory manager type
3eb7d96e941503 drivers/gpu/drm/ttm/ttm_range_manager.c Christian König 2021-04-17 135 * @use_tt: if the memory manager uses tt
3eb7d96e941503 drivers/gpu/drm/ttm/ttm_range_manager.c Christian König 2021-04-17 136 * @p_size: size of area to be managed in pages.
3eb7d96e941503 drivers/gpu/drm/ttm/ttm_range_manager.c Christian König 2021-04-17 137 *
3eb7d96e941503 drivers/gpu/drm/ttm/ttm_range_manager.c Christian König 2021-04-17 138 * Initialise a generic range manager for the selected memory type.
3eb7d96e941503 drivers/gpu/drm/ttm/ttm_range_manager.c Christian König 2021-04-17 139 * The range manager is installed for this device in the type slot.
3eb7d96e941503 drivers/gpu/drm/ttm/ttm_range_manager.c Christian König 2021-04-17 140 */
617d5b34f22c66 drivers/gpu/drm/ttm/ttm_range_manager.c xinhui pan 2021-09-13 141 int ttm_range_man_init_nocheck(struct ttm_device *bdev,
9c3006a4cc1b16 drivers/gpu/drm/ttm/ttm_range_manager.c Christian König 2020-09-11 142 unsigned type, bool use_tt,
d961db75ce86a8 drivers/gpu/drm/ttm/ttm_bo_manager.c Ben Skeggs 2010-08-05 143 unsigned long p_size)
d961db75ce86a8 drivers/gpu/drm/ttm/ttm_bo_manager.c Ben Skeggs 2010-08-05 @144 {
9de59bc201496f drivers/gpu/drm/ttm/ttm_range_manager.c Dave Airlie 2020-08-04 145 struct ttm_resource_manager *man;
d7a67cb16238ab drivers/gpu/drm/ttm/ttm_bo_manager.c Thomas Hellstrom 2010-10-29 146 struct ttm_range_manager *rman;
d961db75ce86a8 drivers/gpu/drm/ttm/ttm_bo_manager.c Ben Skeggs 2010-08-05 147
d7a67cb16238ab drivers/gpu/drm/ttm/ttm_bo_manager.c Thomas Hellstrom 2010-10-29 148 rman = kzalloc(sizeof(*rman), GFP_KERNEL);
d7a67cb16238ab drivers/gpu/drm/ttm/ttm_bo_manager.c Thomas Hellstrom 2010-10-29 149 if (!rman)
d961db75ce86a8 drivers/gpu/drm/ttm/ttm_bo_manager.c Ben Skeggs 2010-08-05 150 return -ENOMEM;
d961db75ce86a8 drivers/gpu/drm/ttm/ttm_bo_manager.c Ben Skeggs 2010-08-05 151
3a1fc38edac75d drivers/gpu/drm/ttm/ttm_bo_manager.c Dave Airlie 2020-08-04 152 man = &rman->manager;
3a1fc38edac75d drivers/gpu/drm/ttm/ttm_bo_manager.c Dave Airlie 2020-08-04 153 man->use_tt = use_tt;
3a1fc38edac75d drivers/gpu/drm/ttm/ttm_bo_manager.c Dave Airlie 2020-08-04 154
80938c28ee67ba drivers/gpu/drm/ttm/ttm_range_manager.c Dave Airlie 2020-08-04 155 man->func = &ttm_range_manager_func;
37205891d84f92 drivers/gpu/drm/ttm/ttm_bo_manager.c Dave Airlie 2020-08-04 156
9de59bc201496f drivers/gpu/drm/ttm/ttm_range_manager.c Dave Airlie 2020-08-04 157 ttm_resource_manager_init(man, p_size);
37205891d84f92 drivers/gpu/drm/ttm/ttm_bo_manager.c Dave Airlie 2020-08-04 158
77ef8bbc87be7a drivers/gpu/drm/ttm/ttm_bo_manager.c David Herrmann 2013-07-01 159 drm_mm_init(&rman->mm, 0, p_size);
d7a67cb16238ab drivers/gpu/drm/ttm/ttm_bo_manager.c Thomas Hellstrom 2010-10-29 160 spin_lock_init(&rman->lock);
d961db75ce86a8 drivers/gpu/drm/ttm/ttm_bo_manager.c Ben Skeggs 2010-08-05 161
3a1fc38edac75d drivers/gpu/drm/ttm/ttm_bo_manager.c Dave Airlie 2020-08-04 162 ttm_set_driver_manager(bdev, type, &rman->manager);
9de59bc201496f drivers/gpu/drm/ttm/ttm_range_manager.c Dave Airlie 2020-08-04 163 ttm_resource_manager_set_used(man, true);
3c90424bd7df15 drivers/gpu/drm/ttm/ttm_bo_manager.c Dave Airlie 2020-08-04 164 return 0;
3c90424bd7df15 drivers/gpu/drm/ttm/ttm_bo_manager.c Dave Airlie 2020-08-04 165 }
617d5b34f22c66 drivers/gpu/drm/ttm/ttm_range_manager.c xinhui pan 2021-09-13 166 EXPORT_SYMBOL(ttm_range_man_init_nocheck);
3c90424bd7df15 drivers/gpu/drm/ttm/ttm_bo_manager.c Dave Airlie 2020-08-04 167
3eb7d96e941503 drivers/gpu/drm/ttm/ttm_range_manager.c Christian König 2021-04-17 168 /**
3eb7d96e941503 drivers/gpu/drm/ttm/ttm_range_manager.c Christian König 2021-04-17 169 * ttm_range_man_fini
3eb7d96e941503 drivers/gpu/drm/ttm/ttm_range_manager.c Christian König 2021-04-17 170 *
3eb7d96e941503 drivers/gpu/drm/ttm/ttm_range_manager.c Christian König 2021-04-17 171 * @bdev: ttm device
3eb7d96e941503 drivers/gpu/drm/ttm/ttm_range_manager.c Christian König 2021-04-17 172 * @type: memory manager type
3eb7d96e941503 drivers/gpu/drm/ttm/ttm_range_manager.c Christian König 2021-04-17 173 *
3eb7d96e941503 drivers/gpu/drm/ttm/ttm_range_manager.c Christian König 2021-04-17 174 * Remove the generic range manager from a slot and tear it down.
3eb7d96e941503 drivers/gpu/drm/ttm/ttm_range_manager.c Christian König 2021-04-17 175 */
617d5b34f22c66 drivers/gpu/drm/ttm/ttm_range_manager.c xinhui pan 2021-09-13 176 int ttm_range_man_fini_nocheck(struct ttm_device *bdev,
37205891d84f92 drivers/gpu/drm/ttm/ttm_bo_manager.c Dave Airlie 2020-08-04 177 unsigned type)
56ee8b1c71ffb5 drivers/gpu/drm/ttm/ttm_bo_manager.c Dave Airlie 2020-08-04 @178 {
:::::: The code at line 144 was first introduced by commit
:::::: d961db75ce86a84f1f04e91ad1014653ed7d9f46 drm/ttm: restructure to allow driver to plug in alternate memory manager
:::::: TO: Ben Skeggs <bskeggs@redhat.com>
:::::: CC: Ben Skeggs <bskeggs@redhat.com>
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
next reply other threads:[~2026-04-07 14:57 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-04-07 14:56 kernel test robot [this message]
-- strict thread matches above, loose matches on Subject: below --
2021-11-15 10:46 kernel test robot
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