From: kernel test robot <lkp@intel.com>
To: Wander Lairson Costa <wander@redhat.com>,
Ingo Molnar <mingo@redhat.com>,
Peter Zijlstra <peterz@infradead.org>,
Juri Lelli <juri.lelli@redhat.com>,
Vincent Guittot <vincent.guittot@linaro.org>,
Dietmar Eggemann <dietmar.eggemann@arm.com>,
Steven Rostedt <rostedt@goodmis.org>,
Ben Segall <bsegall@google.com>, Mel Gorman <mgorman@suse.de>,
Valentin Schneider <vschneid@redhat.com>,
Masami Hiramatsu <mhiramat@kernel.org>,
Mathieu Desnoyers <mathieu.desnoyers@efficios.com>,
Boqun Feng <boqun.feng@gmail.com>,
David Woodhouse <dwmw@amazon.co.uk>,
Thomas Gleixner <tglx@linutronix.de>,
linux-kernel@vger.kernel.org, linux-trace-kernel@vger.kernel.org
Cc: oe-kbuild-all@lists.linux.dev,
Arnaldo Carvalho de Melo <acme@kernel.org>,
Clark Williams <williams@redhat.com>,
Gabriele Monaco <gmonaco@redhat.com>
Subject: Re: [PATCH 1/2] trace/preemptirq: reduce overhead of irq_enable/disable tracepoints
Date: Sat, 28 Jun 2025 06:10:00 +0800 [thread overview]
Message-ID: <202506280530.WX885a04-lkp@intel.com> (raw)
In-Reply-To: <20250626142017.26372-2-wander@redhat.com>
Hi Wander,
kernel test robot noticed the following build errors:
[auto build test ERROR on trace/for-next]
[also build test ERROR on tip/sched/core linus/master v6.16-rc3 next-20250627]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]
url: https://github.com/intel-lab-lkp/linux/commits/Wander-Lairson-Costa/trace-preemptirq-reduce-overhead-of-irq_enable-disable-tracepoints/20250626-222438
base: https://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace for-next
patch link: https://lore.kernel.org/r/20250626142017.26372-2-wander%40redhat.com
patch subject: [PATCH 1/2] trace/preemptirq: reduce overhead of irq_enable/disable tracepoints
config: parisc-randconfig-001-20250628 (https://download.01.org/0day-ci/archive/20250628/202506280530.WX885a04-lkp@intel.com/config)
compiler: hppa-linux-gcc (GCC) 8.5.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250628/202506280530.WX885a04-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@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202506280530.WX885a04-lkp@intel.com/
All error/warnings (new ones prefixed by >>):
from include/linux/page-flags.h:10,
from kernel/bounds.c:10:
include/linux/jump_label.h:299:19: error: implicit declaration of function 'atomic_try_cmpxchg'; did you mean 'raw_cpu_try_cmpxchg'? [-Werror=implicit-function-declaration]
} while (!likely(atomic_try_cmpxchg(&key->enabled, &v, v + 1)));
^~~~~~~~~~~~~~~~~~
include/linux/compiler.h:76:40: note: in definition of macro 'likely'
# define likely(x) __builtin_expect(!!(x), 1)
^
In file included from include/linux/static_key.h:1,
from include/linux/tracepoint-defs.h:12,
from include/linux/irqflags.h:20,
from include/asm-generic/cmpxchg-local.h:6,
from arch/parisc/include/asm/cmpxchg.h:87,
from arch/parisc/include/asm/atomic.h:10,
from include/linux/atomic.h:7,
from arch/parisc/include/asm/bitops.h:13,
from include/linux/bitops.h:68,
from include/linux/kernel.h:23,
from arch/parisc/include/asm/bug.h:5,
from include/linux/bug.h:5,
from include/linux/page-flags.h:10,
from kernel/bounds.c:10:
include/linux/jump_label.h: In function 'static_key_slow_dec':
include/linux/jump_label.h:307:2: error: implicit declaration of function 'atomic_dec' [-Werror=implicit-function-declaration]
atomic_dec(&key->enabled);
^~~~~~~~~~
include/linux/jump_label.h: In function 'static_key_enable':
include/linux/jump_label.h:326:3: error: implicit declaration of function 'WARN_ON_ONCE'; did you mean 'WRITE_ONCE'? [-Werror=implicit-function-declaration]
WARN_ON_ONCE(atomic_read(&key->enabled) != 1);
^~~~~~~~~~~~
WRITE_ONCE
include/linux/jump_label.h:329:2: error: implicit declaration of function 'atomic_set'; did you mean 'static_assert'? [-Werror=implicit-function-declaration]
atomic_set(&key->enabled, 1);
^~~~~~~~~~
static_assert
In file included from include/linux/atomic.h:80,
from arch/parisc/include/asm/bitops.h:13,
from include/linux/bitops.h:68,
from include/linux/kernel.h:23,
from arch/parisc/include/asm/bug.h:5,
from include/linux/bug.h:5,
from include/linux/page-flags.h:10,
from kernel/bounds.c:10:
include/linux/atomic/atomic-arch-fallback.h: At top level:
include/linux/atomic/atomic-arch-fallback.h:455:1: error: static declaration of 'raw_atomic_read' follows non-static declaration
raw_atomic_read(const atomic_t *v)
^~~~~~~~~~~~~~~
In file included from include/linux/static_key.h:1,
from include/linux/tracepoint-defs.h:12,
from include/linux/irqflags.h:20,
from include/asm-generic/cmpxchg-local.h:6,
from arch/parisc/include/asm/cmpxchg.h:87,
from arch/parisc/include/asm/atomic.h:10,
from include/linux/atomic.h:7,
from arch/parisc/include/asm/bitops.h:13,
from include/linux/bitops.h:68,
from include/linux/kernel.h:23,
from arch/parisc/include/asm/bug.h:5,
from include/linux/bug.h:5,
from include/linux/page-flags.h:10,
from kernel/bounds.c:10:
include/linux/jump_label.h:262:9: note: previous implicit declaration of 'raw_atomic_read' was here
return raw_atomic_read(&key->enabled);
^~~~~~~~~~~~~~~
In file included from include/linux/atomic.h:82,
from arch/parisc/include/asm/bitops.h:13,
from include/linux/bitops.h:68,
from include/linux/kernel.h:23,
from arch/parisc/include/asm/bug.h:5,
from include/linux/bug.h:5,
from include/linux/page-flags.h:10,
from kernel/bounds.c:10:
include/linux/atomic/atomic-instrumented.h:30:1: error: static declaration of 'atomic_read' follows non-static declaration
atomic_read(const atomic_t *v)
^~~~~~~~~~~
In file included from include/linux/static_key.h:1,
from include/linux/tracepoint-defs.h:12,
from include/linux/irqflags.h:20,
from include/asm-generic/cmpxchg-local.h:6,
from arch/parisc/include/asm/cmpxchg.h:87,
from arch/parisc/include/asm/atomic.h:10,
from include/linux/atomic.h:7,
from arch/parisc/include/asm/bitops.h:13,
from include/linux/bitops.h:68,
from include/linux/kernel.h:23,
from arch/parisc/include/asm/bug.h:5,
from include/linux/bug.h:5,
from include/linux/page-flags.h:10,
from kernel/bounds.c:10:
include/linux/jump_label.h:295:6: note: previous implicit declaration of 'atomic_read' was here
v = atomic_read(&key->enabled);
^~~~~~~~~~~
In file included from include/linux/atomic.h:82,
from arch/parisc/include/asm/bitops.h:13,
from include/linux/bitops.h:68,
from include/linux/kernel.h:23,
from arch/parisc/include/asm/bug.h:5,
from include/linux/bug.h:5,
from include/linux/page-flags.h:10,
from kernel/bounds.c:10:
>> include/linux/atomic/atomic-instrumented.h:65:1: warning: conflicting types for 'atomic_set'
atomic_set(atomic_t *v, int i)
^~~~~~~~~~
include/linux/atomic/atomic-instrumented.h:65:1: error: static declaration of 'atomic_set' follows non-static declaration
In file included from include/linux/static_key.h:1,
from include/linux/tracepoint-defs.h:12,
from include/linux/irqflags.h:20,
from include/asm-generic/cmpxchg-local.h:6,
from arch/parisc/include/asm/cmpxchg.h:87,
from arch/parisc/include/asm/atomic.h:10,
from include/linux/atomic.h:7,
from arch/parisc/include/asm/bitops.h:13,
from include/linux/bitops.h:68,
from include/linux/kernel.h:23,
from arch/parisc/include/asm/bug.h:5,
from include/linux/bug.h:5,
from include/linux/page-flags.h:10,
from kernel/bounds.c:10:
include/linux/jump_label.h:329:2: note: previous implicit declaration of 'atomic_set' was here
atomic_set(&key->enabled, 1);
^~~~~~~~~~
In file included from include/linux/atomic.h:82,
from arch/parisc/include/asm/bitops.h:13,
from include/linux/bitops.h:68,
from include/linux/kernel.h:23,
from arch/parisc/include/asm/bug.h:5,
from include/linux/bug.h:5,
from include/linux/page-flags.h:10,
from kernel/bounds.c:10:
>> include/linux/atomic/atomic-instrumented.h:590:1: warning: conflicting types for 'atomic_dec'
atomic_dec(atomic_t *v)
^~~~~~~~~~
include/linux/atomic/atomic-instrumented.h:590:1: error: static declaration of 'atomic_dec' follows non-static declaration
In file included from include/linux/static_key.h:1,
from include/linux/tracepoint-defs.h:12,
from include/linux/irqflags.h:20,
from include/asm-generic/cmpxchg-local.h:6,
from arch/parisc/include/asm/cmpxchg.h:87,
from arch/parisc/include/asm/atomic.h:10,
from include/linux/atomic.h:7,
from arch/parisc/include/asm/bitops.h:13,
from include/linux/bitops.h:68,
from include/linux/kernel.h:23,
from arch/parisc/include/asm/bug.h:5,
from include/linux/bug.h:5,
from include/linux/page-flags.h:10,
from kernel/bounds.c:10:
include/linux/jump_label.h:307:2: note: previous implicit declaration of 'atomic_dec' was here
atomic_dec(&key->enabled);
^~~~~~~~~~
In file included from include/linux/atomic.h:82,
from arch/parisc/include/asm/bitops.h:13,
from include/linux/bitops.h:68,
from include/linux/kernel.h:23,
from arch/parisc/include/asm/bug.h:5,
from include/linux/bug.h:5,
from include/linux/page-flags.h:10,
from kernel/bounds.c:10:
>> include/linux/atomic/atomic-instrumented.h:1275:1: error: conflicting types for 'atomic_try_cmpxchg'
atomic_try_cmpxchg(atomic_t *v, int *old, int new)
^~~~~~~~~~~~~~~~~~
In file included from include/linux/array_size.h:5,
from include/linux/kernel.h:16,
from arch/parisc/include/asm/bug.h:5,
from include/linux/bug.h:5,
from include/linux/page-flags.h:10,
from kernel/bounds.c:10:
include/linux/jump_label.h:299:19: note: previous implicit declaration of 'atomic_try_cmpxchg' was here
} while (!likely(atomic_try_cmpxchg(&key->enabled, &v, v + 1)));
^~~~~~~~~~~~~~~~~~
include/linux/compiler.h:76:40: note: in definition of macro 'likely'
# define likely(x) __builtin_expect(!!(x), 1)
^
cc1: some warnings being treated as errors
make[3]: *** [scripts/Makefile.build:98: kernel/bounds.s] Error 1 shuffle=1288049444
make[3]: Target 'prepare' not remade because of errors.
make[2]: *** [Makefile:1274: prepare0] Error 2 shuffle=1288049444
make[2]: Target 'prepare' not remade because of errors.
make[1]: *** [Makefile:248: __sub-make] Error 2 shuffle=1288049444
make[1]: Target 'prepare' not remade because of errors.
make: *** [Makefile:248: __sub-make] Error 2 shuffle=1288049444
make: Target 'prepare' not remade because of errors.
vim +/atomic_try_cmpxchg +1275 include/linux/atomic/atomic-instrumented.h
aa525d063851a9 include/asm-generic/atomic-instrumented.h Mark Rutland 2018-09-04 1259
ad8110706f3811 include/linux/atomic/atomic-instrumented.h Mark Rutland 2023-06-05 1260 /**
ad8110706f3811 include/linux/atomic/atomic-instrumented.h Mark Rutland 2023-06-05 1261 * atomic_try_cmpxchg() - atomic compare and exchange with full ordering
ad8110706f3811 include/linux/atomic/atomic-instrumented.h Mark Rutland 2023-06-05 1262 * @v: pointer to atomic_t
ad8110706f3811 include/linux/atomic/atomic-instrumented.h Mark Rutland 2023-06-05 1263 * @old: pointer to int value to compare with
ad8110706f3811 include/linux/atomic/atomic-instrumented.h Mark Rutland 2023-06-05 1264 * @new: int value to assign
ad8110706f3811 include/linux/atomic/atomic-instrumented.h Mark Rutland 2023-06-05 1265 *
ad8110706f3811 include/linux/atomic/atomic-instrumented.h Mark Rutland 2023-06-05 1266 * If (@v == @old), atomically updates @v to @new with full ordering.
6dfee110c6cc7a include/linux/atomic/atomic-instrumented.h Mark Rutland 2024-02-09 1267 * Otherwise, @v is not modified, @old is updated to the current value of @v,
6dfee110c6cc7a include/linux/atomic/atomic-instrumented.h Mark Rutland 2024-02-09 1268 * and relaxed ordering is provided.
ad8110706f3811 include/linux/atomic/atomic-instrumented.h Mark Rutland 2023-06-05 1269 *
ad8110706f3811 include/linux/atomic/atomic-instrumented.h Mark Rutland 2023-06-05 1270 * Unsafe to use in noinstr code; use raw_atomic_try_cmpxchg() there.
ad8110706f3811 include/linux/atomic/atomic-instrumented.h Mark Rutland 2023-06-05 1271 *
ad8110706f3811 include/linux/atomic/atomic-instrumented.h Mark Rutland 2023-06-05 1272 * Return: @true if the exchange occured, @false otherwise.
ad8110706f3811 include/linux/atomic/atomic-instrumented.h Mark Rutland 2023-06-05 1273 */
c020395b6634b7 include/asm-generic/atomic-instrumented.h Marco Elver 2019-11-26 1274 static __always_inline bool
aa525d063851a9 include/asm-generic/atomic-instrumented.h Mark Rutland 2018-09-04 @1275 atomic_try_cmpxchg(atomic_t *v, int *old, int new)
aa525d063851a9 include/asm-generic/atomic-instrumented.h Mark Rutland 2018-09-04 1276 {
e87c4f6642f496 include/linux/atomic/atomic-instrumented.h Marco Elver 2021-11-30 1277 kcsan_mb();
3570a1bcf45e9a include/asm-generic/atomic-instrumented.h Marco Elver 2020-07-24 1278 instrument_atomic_read_write(v, sizeof(*v));
3570a1bcf45e9a include/asm-generic/atomic-instrumented.h Marco Elver 2020-07-24 1279 instrument_atomic_read_write(old, sizeof(*old));
c9268ac615f9f6 include/linux/atomic/atomic-instrumented.h Mark Rutland 2023-06-05 1280 return raw_atomic_try_cmpxchg(v, old, new);
aa525d063851a9 include/asm-generic/atomic-instrumented.h Mark Rutland 2018-09-04 1281 }
aa525d063851a9 include/asm-generic/atomic-instrumented.h Mark Rutland 2018-09-04 1282
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
next prev parent reply other threads:[~2025-06-27 22:10 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-06-26 14:20 [PATCH 0/2] tracing/preemptirq: Optimize disabled tracepoint overhead Wander Lairson Costa
2025-06-26 14:20 ` [PATCH 1/2] trace/preemptirq: reduce overhead of irq_enable/disable tracepoints Wander Lairson Costa
2025-06-26 23:08 ` Steven Rostedt
2025-06-27 22:10 ` kernel test robot [this message]
2025-06-26 14:20 ` [PATCH 2/2] tracing/preemptirq: Optimize preempt_disable/enable() tracepoint overhead Wander Lairson Costa
2025-06-27 21:59 ` kernel test robot
2025-06-28 14:39 ` kernel test robot
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