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>,
Thomas Gleixner <tglx@linutronix.de>,
Boqun Feng <boqun.feng@gmail.com>,
David Woodhouse <dwmw@amazon.co.uk>,
linux-kernel@vger.kernel.org, linux-trace-kernel@vger.kernel.org
Cc: llvm@lists.linux.dev, 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 v2 1/2] trace/preemptirq: reduce overhead of irq_enable/disable tracepoints
Date: Tue, 1 Jul 2025 20:05:36 +0800 [thread overview]
Message-ID: <202507011949.4wad2fIh-lkp@intel.com> (raw)
In-Reply-To: <20250630195243.701516-2-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-rc4 next-20250701]
[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/20250701-035446
base: https://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace for-next
patch link: https://lore.kernel.org/r/20250630195243.701516-2-wander%40redhat.com
patch subject: [PATCH v2 1/2] trace/preemptirq: reduce overhead of irq_enable/disable tracepoints
config: arm-randconfig-004-20250701 (https://download.01.org/0day-ci/archive/20250701/202507011949.4wad2fIh-lkp@intel.com/config)
compiler: clang version 21.0.0git (https://github.com/llvm/llvm-project e04c938cc08a90ae60440ce22d072ebc69d67ee8)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250701/202507011949.4wad2fIh-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/202507011949.4wad2fIh-lkp@intel.com/
All errors (new ones prefixed by >>):
In file included from kernel/bounds.c:13:
In file included from include/linux/log2.h:12:
In file included from include/linux/bitops.h:68:
In file included from arch/arm/include/asm/bitops.h:28:
In file included from include/linux/irqflags.h:20:
In file included from include/linux/tracepoint-defs.h:11:
In file included from include/linux/atomic.h:7:
In file included from arch/arm/include/asm/atomic.h:16:
In file included from arch/arm/include/asm/cmpxchg.h:124:
include/asm-generic/cmpxchg-local.h:26:2: error: call to undeclared function 'raw_local_irq_save'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
26 | raw_local_irq_save(flags);
| ^
include/asm-generic/cmpxchg-local.h:26:2: note: did you mean 'arch_local_irq_save'?
arch/arm/include/asm/irqflags.h:72:29: note: 'arch_local_irq_save' declared here
72 | static inline unsigned long arch_local_irq_save(void)
| ^
arch/arm/include/asm/irqflags.h:71:29: note: expanded from macro 'arch_local_irq_save'
71 | #define arch_local_irq_save arch_local_irq_save
| ^
In file included from kernel/bounds.c:13:
In file included from include/linux/log2.h:12:
In file included from include/linux/bitops.h:68:
In file included from arch/arm/include/asm/bitops.h:28:
In file included from include/linux/irqflags.h:20:
In file included from include/linux/tracepoint-defs.h:11:
In file included from include/linux/atomic.h:7:
In file included from arch/arm/include/asm/atomic.h:16:
In file included from arch/arm/include/asm/cmpxchg.h:124:
include/asm-generic/cmpxchg-local.h:47:2: error: call to undeclared function 'raw_local_irq_restore'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
47 | raw_local_irq_restore(flags);
| ^
include/asm-generic/cmpxchg-local.h:47:2: note: did you mean 'arch_local_irq_restore'?
arch/arm/include/asm/irqflags.h:169:20: note: 'arch_local_irq_restore' declared here
169 | static inline void arch_local_irq_restore(unsigned long flags)
| ^
arch/arm/include/asm/irqflags.h:168:32: note: expanded from macro 'arch_local_irq_restore'
168 | #define arch_local_irq_restore arch_local_irq_restore
| ^
In file included from kernel/bounds.c:13:
In file included from include/linux/log2.h:12:
In file included from include/linux/bitops.h:68:
In file included from arch/arm/include/asm/bitops.h:28:
In file included from include/linux/irqflags.h:20:
In file included from include/linux/tracepoint-defs.h:11:
In file included from include/linux/atomic.h:7:
In file included from arch/arm/include/asm/atomic.h:16:
In file included from arch/arm/include/asm/cmpxchg.h:124:
include/asm-generic/cmpxchg-local.h:60:2: error: call to undeclared function 'raw_local_irq_save'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
60 | raw_local_irq_save(flags);
| ^
include/asm-generic/cmpxchg-local.h:64:2: error: call to undeclared function 'raw_local_irq_restore'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
64 | raw_local_irq_restore(flags);
| ^
In file included from kernel/bounds.c:13:
In file included from include/linux/log2.h:12:
In file included from include/linux/bitops.h:68:
In file included from arch/arm/include/asm/bitops.h:28:
In file included from include/linux/irqflags.h:20:
In file included from include/linux/tracepoint-defs.h:11:
In file included from include/linux/atomic.h:7:
In file included from arch/arm/include/asm/atomic.h:16:
In file included from arch/arm/include/asm/cmpxchg.h:148:
>> include/asm-generic/cmpxchg.h:33:3: error: call to undeclared function 'local_irq_save'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
33 | local_irq_save(flags);
| ^
>> include/asm-generic/cmpxchg.h:36:3: error: call to undeclared function 'local_irq_restore'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
36 | local_irq_restore(flags);
| ^
In file included from kernel/bounds.c:13:
In file included from include/linux/log2.h:12:
In file included from include/linux/bitops.h:68:
In file included from arch/arm/include/asm/bitops.h:28:
In file included from include/linux/irqflags.h:20:
In file included from include/linux/tracepoint-defs.h:11:
In file included from include/linux/atomic.h:7:
>> arch/arm/include/asm/atomic.h:215:2: error: call to undeclared function 'raw_local_irq_save'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
215 | raw_local_irq_save(flags);
| ^
>> arch/arm/include/asm/atomic.h:219:2: error: call to undeclared function 'raw_local_irq_restore'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
219 | raw_local_irq_restore(flags);
| ^
arch/arm/include/asm/atomic.h:232:1: error: call to undeclared function 'raw_local_irq_save'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
232 | ATOMIC_OPS(add, +=, add)
| ^
arch/arm/include/asm/atomic.h:228:2: note: expanded from macro 'ATOMIC_OPS'
228 | ATOMIC_OP(op, c_op, asm_op) \
| ^
arch/arm/include/asm/atomic.h:167:2: note: expanded from macro 'ATOMIC_OP'
167 | raw_local_irq_save(flags); \
| ^
arch/arm/include/asm/atomic.h:232:1: error: call to undeclared function 'raw_local_irq_restore'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
arch/arm/include/asm/atomic.h:228:2: note: expanded from macro 'ATOMIC_OPS'
228 | ATOMIC_OP(op, c_op, asm_op) \
| ^
arch/arm/include/asm/atomic.h:169:2: note: expanded from macro 'ATOMIC_OP'
169 | raw_local_irq_restore(flags); \
| ^
arch/arm/include/asm/atomic.h:232:1: error: call to undeclared function 'raw_local_irq_save'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
arch/arm/include/asm/atomic.h:229:2: note: expanded from macro 'ATOMIC_OPS'
229 | ATOMIC_OP_RETURN(op, c_op, asm_op) \
| ^
arch/arm/include/asm/atomic.h:178:2: note: expanded from macro 'ATOMIC_OP_RETURN'
178 | raw_local_irq_save(flags); \
| ^
arch/arm/include/asm/atomic.h:232:1: error: call to undeclared function 'raw_local_irq_restore'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
arch/arm/include/asm/atomic.h:229:2: note: expanded from macro 'ATOMIC_OPS'
229 | ATOMIC_OP_RETURN(op, c_op, asm_op) \
| ^
arch/arm/include/asm/atomic.h:181:2: note: expanded from macro 'ATOMIC_OP_RETURN'
181 | raw_local_irq_restore(flags); \
| ^
arch/arm/include/asm/atomic.h:232:1: error: call to undeclared function 'raw_local_irq_save'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
arch/arm/include/asm/atomic.h:230:2: note: expanded from macro 'ATOMIC_OPS'
230 | ATOMIC_FETCH_OP(op, c_op, asm_op)
| ^
arch/arm/include/asm/atomic.h:192:2: note: expanded from macro 'ATOMIC_FETCH_OP'
192 | raw_local_irq_save(flags); \
| ^
arch/arm/include/asm/atomic.h:232:1: error: call to undeclared function 'raw_local_irq_restore'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
arch/arm/include/asm/atomic.h:230:2: note: expanded from macro 'ATOMIC_OPS'
230 | ATOMIC_FETCH_OP(op, c_op, asm_op)
| ^
arch/arm/include/asm/atomic.h:195:2: note: expanded from macro 'ATOMIC_FETCH_OP'
195 | raw_local_irq_restore(flags); \
| ^
arch/arm/include/asm/atomic.h:233:1: error: call to undeclared function 'raw_local_irq_save'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
233 | ATOMIC_OPS(sub, -=, sub)
| ^
arch/arm/include/asm/atomic.h:228:2: note: expanded from macro 'ATOMIC_OPS'
228 | ATOMIC_OP(op, c_op, asm_op) \
| ^
arch/arm/include/asm/atomic.h:167:2: note: expanded from macro 'ATOMIC_OP'
167 | raw_local_irq_save(flags); \
| ^
arch/arm/include/asm/atomic.h:233:1: error: call to undeclared function 'raw_local_irq_restore'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
arch/arm/include/asm/atomic.h:228:2: note: expanded from macro 'ATOMIC_OPS'
228 | ATOMIC_OP(op, c_op, asm_op) \
| ^
arch/arm/include/asm/atomic.h:169:2: note: expanded from macro 'ATOMIC_OP'
169 | raw_local_irq_restore(flags); \
| ^
arch/arm/include/asm/atomic.h:233:1: error: call to undeclared function 'raw_local_irq_save'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
arch/arm/include/asm/atomic.h:229:2: note: expanded from macro 'ATOMIC_OPS'
229 | ATOMIC_OP_RETURN(op, c_op, asm_op) \
| ^
arch/arm/include/asm/atomic.h:178:2: note: expanded from macro 'ATOMIC_OP_RETURN'
178 | raw_local_irq_save(flags); \
| ^
arch/arm/include/asm/atomic.h:233:1: error: call to undeclared function 'raw_local_irq_restore'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
arch/arm/include/asm/atomic.h:229:2: note: expanded from macro 'ATOMIC_OPS'
229 | ATOMIC_OP_RETURN(op, c_op, asm_op) \
| ^
arch/arm/include/asm/atomic.h:181:2: note: expanded from macro 'ATOMIC_OP_RETURN'
181 | raw_local_irq_restore(flags); \
| ^
arch/arm/include/asm/atomic.h:233:1: error: call to undeclared function 'raw_local_irq_save'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
arch/arm/include/asm/atomic.h:230:2: note: expanded from macro 'ATOMIC_OPS'
230 | ATOMIC_FETCH_OP(op, c_op, asm_op)
| ^
arch/arm/include/asm/atomic.h:192:2: note: expanded from macro 'ATOMIC_FETCH_OP'
192 | raw_local_irq_save(flags); \
| ^
fatal error: too many errors emitted, stopping now [-ferror-limit=]
20 errors generated.
make[3]: *** [scripts/Makefile.build:98: kernel/bounds.s] Error 1 shuffle=3679043308
make[3]: Target 'prepare' not remade because of errors.
make[2]: *** [Makefile:1274: prepare0] Error 2 shuffle=3679043308
make[2]: Target 'prepare' not remade because of errors.
make[1]: *** [Makefile:248: __sub-make] Error 2 shuffle=3679043308
make[1]: Target 'prepare' not remade because of errors.
make: *** [Makefile:248: __sub-make] Error 2 shuffle=3679043308
make: Target 'prepare' not remade because of errors.
vim +/local_irq_save +33 include/asm-generic/cmpxchg.h
b4816afa398670 David Howells 2012-03-28 22
b4816afa398670 David Howells 2012-03-28 23 static inline
82b993e8249ae3 Mark Rutland 2021-05-25 24 unsigned long __generic_xchg(unsigned long x, volatile void *ptr, int size)
b4816afa398670 David Howells 2012-03-28 25 {
b4816afa398670 David Howells 2012-03-28 26 unsigned long ret, flags;
b4816afa398670 David Howells 2012-03-28 27
b4816afa398670 David Howells 2012-03-28 28 switch (size) {
b4816afa398670 David Howells 2012-03-28 29 case 1:
b4816afa398670 David Howells 2012-03-28 30 #ifdef __xchg_u8
b4816afa398670 David Howells 2012-03-28 31 return __xchg_u8(x, ptr);
b4816afa398670 David Howells 2012-03-28 32 #else
b4816afa398670 David Howells 2012-03-28 @33 local_irq_save(flags);
b4816afa398670 David Howells 2012-03-28 34 ret = *(volatile u8 *)ptr;
656e9007ef5862 Arnd Bergmann 2023-03-02 35 *(volatile u8 *)ptr = (x & 0xffu);
b4816afa398670 David Howells 2012-03-28 @36 local_irq_restore(flags);
b4816afa398670 David Howells 2012-03-28 37 return ret;
b4816afa398670 David Howells 2012-03-28 38 #endif /* __xchg_u8 */
b4816afa398670 David Howells 2012-03-28 39
b4816afa398670 David Howells 2012-03-28 40 case 2:
b4816afa398670 David Howells 2012-03-28 41 #ifdef __xchg_u16
b4816afa398670 David Howells 2012-03-28 42 return __xchg_u16(x, ptr);
b4816afa398670 David Howells 2012-03-28 43 #else
b4816afa398670 David Howells 2012-03-28 44 local_irq_save(flags);
b4816afa398670 David Howells 2012-03-28 45 ret = *(volatile u16 *)ptr;
656e9007ef5862 Arnd Bergmann 2023-03-02 46 *(volatile u16 *)ptr = (x & 0xffffu);
b4816afa398670 David Howells 2012-03-28 47 local_irq_restore(flags);
b4816afa398670 David Howells 2012-03-28 48 return ret;
b4816afa398670 David Howells 2012-03-28 49 #endif /* __xchg_u16 */
b4816afa398670 David Howells 2012-03-28 50
b4816afa398670 David Howells 2012-03-28 51 case 4:
b4816afa398670 David Howells 2012-03-28 52 #ifdef __xchg_u32
b4816afa398670 David Howells 2012-03-28 53 return __xchg_u32(x, ptr);
b4816afa398670 David Howells 2012-03-28 54 #else
b4816afa398670 David Howells 2012-03-28 55 local_irq_save(flags);
b4816afa398670 David Howells 2012-03-28 56 ret = *(volatile u32 *)ptr;
656e9007ef5862 Arnd Bergmann 2023-03-02 57 *(volatile u32 *)ptr = (x & 0xffffffffu);
b4816afa398670 David Howells 2012-03-28 58 local_irq_restore(flags);
b4816afa398670 David Howells 2012-03-28 59 return ret;
b4816afa398670 David Howells 2012-03-28 60 #endif /* __xchg_u32 */
b4816afa398670 David Howells 2012-03-28 61
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
next prev parent reply other threads:[~2025-07-01 12:06 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-06-30 19:52 [PATCH v2 0/2] tracing/preemptirq: Optimize disabled tracepoint overhead Wander Lairson Costa
2025-06-30 19:52 ` [PATCH v2 1/2] trace/preemptirq: reduce overhead of irq_enable/disable tracepoints Wander Lairson Costa
2025-07-01 12:05 ` kernel test robot [this message]
2025-06-30 19:52 ` [PATCH v2 2/2] tracing/preemptirq: Optimize preempt_disable/enable() tracepoint overhead Wander Lairson Costa
2025-07-01 12:36 ` kernel test robot
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