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Message-ID: <202507061226.y7g5eBuq-lkp@intel.com>
Date: Sun, 6 Jul 2025 12:29:29 +0800
From: kernel test robot <lkp@...el.com>
To: Wander Lairson Costa <wander@...hat.com>,
Ingo Molnar <mingo@...hat.com>,
Peter Zijlstra <peterz@...radead.org>,
Juri Lelli <juri.lelli@...hat.com>,
Vincent Guittot <vincent.guittot@...aro.org>,
Dietmar Eggemann <dietmar.eggemann@....com>,
Steven Rostedt <rostedt@...dmis.org>,
Ben Segall <bsegall@...gle.com>, Mel Gorman <mgorman@...e.de>,
Valentin Schneider <vschneid@...hat.com>,
Masami Hiramatsu <mhiramat@...nel.org>,
Mathieu Desnoyers <mathieu.desnoyers@...icios.com>,
David Woodhouse <dwmw@...zon.co.uk>,
Boqun Feng <boqun.feng@...il.com>,
Thomas Gleixner <tglx@...utronix.de>, linux-kernel@...r.kernel.org,
linux-trace-kernel@...r.kernel.org
Cc: oe-kbuild-all@...ts.linux.dev,
Arnaldo Carvalho de Melo <acme@...nel.org>,
Clark Williams <williams@...hat.com>,
Gabriele Monaco <gmonaco@...hat.com>
Subject: Re: [PATCH v3 1/2] trace/preemptirq: reduce overhead of
irq_enable/disable tracepoints
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-20250704]
[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/20250705-011058
base: https://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace for-next
patch link: https://lore.kernel.org/r/20250704170748.97632-2-wander%40redhat.com
patch subject: [PATCH v3 1/2] trace/preemptirq: reduce overhead of irq_enable/disable tracepoints
config: nios2-randconfig-r123-20250706 (https://download.01.org/0day-ci/archive/20250706/202507061226.y7g5eBuq-lkp@intel.com/config)
compiler: nios2-linux-gcc (GCC) 8.5.0
reproduce: (https://download.01.org/0day-ci/archive/20250706/202507061226.y7g5eBuq-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/202507061226.y7g5eBuq-lkp@intel.com/
All errors (new ones prefixed by >>):
In file included from ./arch/nios2/include/generated/asm/cmpxchg.h:1,
from include/asm-generic/atomic.h:12,
from ./arch/nios2/include/generated/asm/atomic.h:1,
from include/linux/atomic.h:7,
from include/linux/jump_label.h:257,
from include/linux/static_key.h:1,
from include/linux/tracepoint-defs.h:11,
from include/linux/irqflags.h:20,
from include/asm-generic/bitops.h:14,
from ./arch/nios2/include/generated/asm/bitops.h:1,
from include/linux/bitops.h:68,
from include/linux/log2.h:12,
from kernel/bounds.c:13:
include/asm-generic/cmpxchg.h: In function '__generic_xchg':
>> include/asm-generic/cmpxchg.h:33:3: error: implicit declaration of function 'local_irq_save'; did you mean 'arch_local_irq_save'? [-Werror=implicit-function-declaration]
local_irq_save(flags);
^~~~~~~~~~~~~~
arch_local_irq_save
>> include/asm-generic/cmpxchg.h:36:3: error: implicit declaration of function 'local_irq_restore'; did you mean 'arch_local_irq_restore'? [-Werror=implicit-function-declaration]
local_irq_restore(flags);
^~~~~~~~~~~~~~~~~
arch_local_irq_restore
In file included from include/asm-generic/cmpxchg.h:89,
from ./arch/nios2/include/generated/asm/cmpxchg.h:1,
from include/asm-generic/atomic.h:12,
from ./arch/nios2/include/generated/asm/atomic.h:1,
from include/linux/atomic.h:7,
from include/linux/jump_label.h:257,
from include/linux/static_key.h:1,
from include/linux/tracepoint-defs.h:11,
from include/linux/irqflags.h:20,
from include/asm-generic/bitops.h:14,
from ./arch/nios2/include/generated/asm/bitops.h:1,
from include/linux/bitops.h:68,
from include/linux/log2.h:12,
from kernel/bounds.c:13:
include/asm-generic/cmpxchg-local.h: In function '__generic_cmpxchg_local':
>> include/asm-generic/cmpxchg-local.h:26:2: error: implicit declaration of function 'raw_local_irq_save'; did you mean 'arch_local_irq_save'? [-Werror=implicit-function-declaration]
raw_local_irq_save(flags);
^~~~~~~~~~~~~~~~~~
arch_local_irq_save
>> include/asm-generic/cmpxchg-local.h:47:2: error: implicit declaration of function 'raw_local_irq_restore'; did you mean 'arch_local_irq_restore'? [-Werror=implicit-function-declaration]
raw_local_irq_restore(flags);
^~~~~~~~~~~~~~~~~~~~~
arch_local_irq_restore
cc1: some warnings being treated as errors
make[3]: *** [scripts/Makefile.build:98: kernel/bounds.s] Error 1
make[3]: Target 'prepare' not remade because of errors.
make[2]: *** [Makefile:1274: prepare0] Error 2
make[2]: Target 'prepare' not remade because of errors.
make[1]: *** [Makefile:248: __sub-make] Error 2
make[1]: Target 'prepare' not remade because of errors.
make: *** [Makefile:248: __sub-make] Error 2
make: Target 'prepare' not remade because of errors.
vim +33 include/asm-generic/cmpxchg.h
b4816afa3986704 David Howells 2012-03-28 22
b4816afa3986704 David Howells 2012-03-28 23 static inline
82b993e8249ae3c Mark Rutland 2021-05-25 24 unsigned long __generic_xchg(unsigned long x, volatile void *ptr, int size)
b4816afa3986704 David Howells 2012-03-28 25 {
b4816afa3986704 David Howells 2012-03-28 26 unsigned long ret, flags;
b4816afa3986704 David Howells 2012-03-28 27
b4816afa3986704 David Howells 2012-03-28 28 switch (size) {
b4816afa3986704 David Howells 2012-03-28 29 case 1:
b4816afa3986704 David Howells 2012-03-28 30 #ifdef __xchg_u8
b4816afa3986704 David Howells 2012-03-28 31 return __xchg_u8(x, ptr);
b4816afa3986704 David Howells 2012-03-28 32 #else
b4816afa3986704 David Howells 2012-03-28 @33 local_irq_save(flags);
b4816afa3986704 David Howells 2012-03-28 34 ret = *(volatile u8 *)ptr;
656e9007ef58627 Arnd Bergmann 2023-03-02 35 *(volatile u8 *)ptr = (x & 0xffu);
b4816afa3986704 David Howells 2012-03-28 @36 local_irq_restore(flags);
b4816afa3986704 David Howells 2012-03-28 37 return ret;
b4816afa3986704 David Howells 2012-03-28 38 #endif /* __xchg_u8 */
b4816afa3986704 David Howells 2012-03-28 39
b4816afa3986704 David Howells 2012-03-28 40 case 2:
b4816afa3986704 David Howells 2012-03-28 41 #ifdef __xchg_u16
b4816afa3986704 David Howells 2012-03-28 42 return __xchg_u16(x, ptr);
b4816afa3986704 David Howells 2012-03-28 43 #else
b4816afa3986704 David Howells 2012-03-28 44 local_irq_save(flags);
b4816afa3986704 David Howells 2012-03-28 45 ret = *(volatile u16 *)ptr;
656e9007ef58627 Arnd Bergmann 2023-03-02 46 *(volatile u16 *)ptr = (x & 0xffffu);
b4816afa3986704 David Howells 2012-03-28 47 local_irq_restore(flags);
b4816afa3986704 David Howells 2012-03-28 48 return ret;
b4816afa3986704 David Howells 2012-03-28 49 #endif /* __xchg_u16 */
b4816afa3986704 David Howells 2012-03-28 50
b4816afa3986704 David Howells 2012-03-28 51 case 4:
b4816afa3986704 David Howells 2012-03-28 52 #ifdef __xchg_u32
b4816afa3986704 David Howells 2012-03-28 53 return __xchg_u32(x, ptr);
b4816afa3986704 David Howells 2012-03-28 54 #else
b4816afa3986704 David Howells 2012-03-28 55 local_irq_save(flags);
b4816afa3986704 David Howells 2012-03-28 56 ret = *(volatile u32 *)ptr;
656e9007ef58627 Arnd Bergmann 2023-03-02 57 *(volatile u32 *)ptr = (x & 0xffffffffu);
b4816afa3986704 David Howells 2012-03-28 58 local_irq_restore(flags);
b4816afa3986704 David Howells 2012-03-28 59 return ret;
b4816afa3986704 David Howells 2012-03-28 60 #endif /* __xchg_u32 */
b4816afa3986704 David Howells 2012-03-28 61
--
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