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Message-ID: <202601122334.64RmoU1u-lkp@intel.com>
Date: Tue, 13 Jan 2026 00:06:17 +0800
From: kernel test robot <lkp@...el.com>
To: Ivan Vecera <ivecera@...hat.com>, netdev@...r.kernel.org
Cc: oe-kbuild-all@...ts.linux.dev, Eric Dumazet <edumazet@...gle.com>,
Tony Nguyen <anthony.l.nguyen@...el.com>,
Rob Herring <robh@...nel.org>, Leon Romanovsky <leon@...nel.org>,
Andrew Lunn <andrew+netdev@...n.ch>, linux-rdma@...r.kernel.org,
Przemek Kitszel <przemyslaw.kitszel@...el.com>,
Arkadiusz Kubalewski <arkadiusz.kubalewski@...el.com>,
intel-wired-lan@...ts.osuosl.org, Jakub Kicinski <kuba@...nel.org>,
Paolo Abeni <pabeni@...hat.com>, devicetree@...r.kernel.org,
Conor Dooley <conor+dt@...nel.org>, Jiri Pirko <jiri@...nulli.us>,
Richard Cochran <richardcochran@...il.com>,
Prathosh Satish <Prathosh.Satish@...rochip.com>,
Vadim Fedorenko <vadim.fedorenko@...ux.dev>,
Mark Bloch <mbloch@...dia.com>, linux-kernel@...r.kernel.org,
Tariq Toukan <tariqt@...dia.com>,
Alexander Lobakin <aleksander.lobakin@...el.com>,
Jonathan Lemon <jonathan.lemon@...il.com>,
Krzysztof Kozlowski <krzk@...nel.org>,
Saeed Mahameed <saeedm@...dia.com>
Subject: Re: [Intel-wired-lan] [PATCH net-next 10/12] dpll: Add reference
count tracking support
Hi Ivan,
kernel test robot noticed the following build errors:
[auto build test ERROR on net-next/main]
url: https://github.com/intel-lab-lkp/linux/commits/Ivan-Vecera/dt-bindings-dpll-add-common-dpll-pin-consumer-schema/20260109-022618
base: net-next/main
patch link: https://lore.kernel.org/r/20260108182318.20935-11-ivecera%40redhat.com
patch subject: [Intel-wired-lan] [PATCH net-next 10/12] dpll: Add reference count tracking support
config: m68k-allmodconfig (https://download.01.org/0day-ci/archive/20260112/202601122334.64RmoU1u-lkp@intel.com/config)
compiler: m68k-linux-gcc (GCC) 15.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260112/202601122334.64RmoU1u-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
| Reported-by: kernel test robot <lkp@...el.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202601122334.64RmoU1u-lkp@intel.com/
All errors (new ones prefixed by >>):
lib/ref_tracker.c: In function 'ref_tracker_alloc':
>> lib/ref_tracker.c:277:22: error: implicit declaration of function 'stack_trace_save'; did you mean 'stack_depot_save'? [-Wimplicit-function-declaration]
277 | nr_entries = stack_trace_save(entries, ARRAY_SIZE(entries), 1);
| ^~~~~~~~~~~~~~~~
| stack_depot_save
Kconfig warnings: (for reference only)
WARNING: unmet direct dependencies detected for REF_TRACKER
Depends on [n]: STACKTRACE_SUPPORT
Selected by [y]:
- DPLL_REFCNT_TRACKER [=y] && DPLL [=y]
vim +277 lib/ref_tracker.c
4e66934eaadc83b Eric Dumazet 2021-12-04 252
4e66934eaadc83b Eric Dumazet 2021-12-04 253 int ref_tracker_alloc(struct ref_tracker_dir *dir,
4e66934eaadc83b Eric Dumazet 2021-12-04 254 struct ref_tracker **trackerp,
4e66934eaadc83b Eric Dumazet 2021-12-04 255 gfp_t gfp)
4e66934eaadc83b Eric Dumazet 2021-12-04 256 {
4e66934eaadc83b Eric Dumazet 2021-12-04 257 unsigned long entries[REF_TRACKER_STACK_ENTRIES];
4e66934eaadc83b Eric Dumazet 2021-12-04 258 struct ref_tracker *tracker;
4e66934eaadc83b Eric Dumazet 2021-12-04 259 unsigned int nr_entries;
acd8f0e5d72741b Andrzej Hajda 2023-06-02 260 gfp_t gfp_mask = gfp | __GFP_NOWARN;
4e66934eaadc83b Eric Dumazet 2021-12-04 261 unsigned long flags;
4e66934eaadc83b Eric Dumazet 2021-12-04 262
e3ececfe668facd Eric Dumazet 2022-02-04 263 WARN_ON_ONCE(dir->dead);
e3ececfe668facd Eric Dumazet 2022-02-04 264
8fd5522f44dcd7f Eric Dumazet 2022-02-04 265 if (!trackerp) {
8fd5522f44dcd7f Eric Dumazet 2022-02-04 266 refcount_inc(&dir->no_tracker);
8fd5522f44dcd7f Eric Dumazet 2022-02-04 267 return 0;
8fd5522f44dcd7f Eric Dumazet 2022-02-04 268 }
c12837d1bb31032 Eric Dumazet 2022-01-12 269 if (gfp & __GFP_DIRECT_RECLAIM)
c12837d1bb31032 Eric Dumazet 2022-01-12 270 gfp_mask |= __GFP_NOFAIL;
c12837d1bb31032 Eric Dumazet 2022-01-12 271 *trackerp = tracker = kzalloc(sizeof(*tracker), gfp_mask);
4e66934eaadc83b Eric Dumazet 2021-12-04 272 if (unlikely(!tracker)) {
4e66934eaadc83b Eric Dumazet 2021-12-04 273 pr_err_once("memory allocation failure, unreliable refcount tracker.\n");
4e66934eaadc83b Eric Dumazet 2021-12-04 274 refcount_inc(&dir->untracked);
4e66934eaadc83b Eric Dumazet 2021-12-04 275 return -ENOMEM;
4e66934eaadc83b Eric Dumazet 2021-12-04 276 }
4e66934eaadc83b Eric Dumazet 2021-12-04 @277 nr_entries = stack_trace_save(entries, ARRAY_SIZE(entries), 1);
4e66934eaadc83b Eric Dumazet 2021-12-04 278 tracker->alloc_stack_handle = stack_depot_save(entries, nr_entries, gfp);
4e66934eaadc83b Eric Dumazet 2021-12-04 279
4e66934eaadc83b Eric Dumazet 2021-12-04 280 spin_lock_irqsave(&dir->lock, flags);
4e66934eaadc83b Eric Dumazet 2021-12-04 281 list_add(&tracker->head, &dir->list);
4e66934eaadc83b Eric Dumazet 2021-12-04 282 spin_unlock_irqrestore(&dir->lock, flags);
4e66934eaadc83b Eric Dumazet 2021-12-04 283 return 0;
4e66934eaadc83b Eric Dumazet 2021-12-04 284 }
4e66934eaadc83b Eric Dumazet 2021-12-04 285 EXPORT_SYMBOL_GPL(ref_tracker_alloc);
4e66934eaadc83b Eric Dumazet 2021-12-04 286
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
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