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Message-ID: <202508070415.RDcwKpac-lkp@intel.com>
Date: Thu, 7 Aug 2025 04:28:42 +0800
From: kernel test robot <lkp@...el.com>
To: Nam Cao <namcao@...utronix.de>, Steven Rostedt <rostedt@...dmis.org>,
Masami Hiramatsu <mhiramat@...nel.org>,
Mathieu Desnoyers <mathieu.desnoyers@...icios.com>,
Gabriele Monaco <gmonaco@...hat.com>,
linux-trace-kernel@...r.kernel.org, linux-kernel@...r.kernel.org
Cc: oe-kbuild-all@...ts.linux.dev, Nam Cao <namcao@...utronix.de>,
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>,
Ben Segall <bsegall@...gle.com>, Mel Gorman <mgorman@...e.de>,
Valentin Schneider <vschneid@...hat.com>,
K Prateek Nayak <kprateek.nayak@....com>
Subject: Re: [PATCH v2 5/5] rv: Add rts monitor
Hi Nam,
kernel test robot noticed the following build errors:
[auto build test ERROR on trace/for-next]
[also build test ERROR on linus/master next-20250806]
[cannot apply to tip/sched/core v6.16]
[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/Nam-Cao/rv-ltl-Prepare-for-other-monitor-types/20250806-160342
base: https://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace for-next
patch link: https://lore.kernel.org/r/88fdbeb3f2ecf3a6259f3ee8636ae5b21fa6b72d.1754466623.git.namcao%40linutronix.de
patch subject: [PATCH v2 5/5] rv: Add rts monitor
config: sh-allmodconfig (https://download.01.org/0day-ci/archive/20250807/202508070415.RDcwKpac-lkp@intel.com/config)
compiler: sh4-linux-gcc (GCC) 15.1.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250807/202508070415.RDcwKpac-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/202508070415.RDcwKpac-lkp@intel.com/
All errors (new ones prefixed by >>):
In file included from include/asm-generic/percpu.h:7,
from ./arch/sh/include/generated/asm/percpu.h:1,
from include/linux/irqflags.h:19,
from arch/sh/include/asm/cmpxchg-irq.h:5,
from arch/sh/include/asm/cmpxchg.h:21,
from arch/sh/include/asm/atomic.h:19,
from include/linux/atomic.h:7,
from include/asm-generic/bitops/atomic.h:5,
from arch/sh/include/asm/bitops.h:23,
from include/linux/bitops.h:67,
from include/linux/kernel.h:23,
from include/linux/interrupt.h:6,
from include/linux/trace_recursion.h:5,
from include/linux/ftrace.h:10,
from kernel/trace/rv/monitors/rts/rts.c:2:
include/rv/ltl_monitor.h: In function 'ltl_get_monitor':
>> include/linux/percpu-defs.h:90:40: error: section attribute cannot be specified for local variables
90 | extern __PCPU_DUMMY_ATTRS char __pcpu_unique_##name; \
| ^~~~~~~~~~~~~~
include/linux/percpu-defs.h:113:9: note: in expansion of macro 'DEFINE_PER_CPU_SECTION'
113 | DEFINE_PER_CPU_SECTION(type, name, "")
| ^~~~~~~~~~~~~~~~~~~~~~
include/rv/ltl_monitor.h:69:16: note: in expansion of macro 'DEFINE_PER_CPU'
69 | static DEFINE_PER_CPU(struct ltl_monitor, ltl_monitor);
| ^~~~~~~~~~~~~~
include/linux/percpu-defs.h:91:33: error: section attribute cannot be specified for local variables
91 | __PCPU_DUMMY_ATTRS char __pcpu_unique_##name; \
| ^~~~~~~~~~~~~~
include/linux/percpu-defs.h:113:9: note: in expansion of macro 'DEFINE_PER_CPU_SECTION'
113 | DEFINE_PER_CPU_SECTION(type, name, "")
| ^~~~~~~~~~~~~~~~~~~~~~
include/rv/ltl_monitor.h:69:16: note: in expansion of macro 'DEFINE_PER_CPU'
69 | static DEFINE_PER_CPU(struct ltl_monitor, ltl_monitor);
| ^~~~~~~~~~~~~~
>> include/linux/percpu-defs.h:91:33: error: declaration of '__pcpu_unique_ltl_monitor' with no linkage follows extern declaration
91 | __PCPU_DUMMY_ATTRS char __pcpu_unique_##name; \
| ^~~~~~~~~~~~~~
include/linux/percpu-defs.h:113:9: note: in expansion of macro 'DEFINE_PER_CPU_SECTION'
113 | DEFINE_PER_CPU_SECTION(type, name, "")
| ^~~~~~~~~~~~~~~~~~~~~~
include/rv/ltl_monitor.h:69:16: note: in expansion of macro 'DEFINE_PER_CPU'
69 | static DEFINE_PER_CPU(struct ltl_monitor, ltl_monitor);
| ^~~~~~~~~~~~~~
include/linux/percpu-defs.h:90:40: note: previous declaration of '__pcpu_unique_ltl_monitor' with type 'char'
90 | extern __PCPU_DUMMY_ATTRS char __pcpu_unique_##name; \
| ^~~~~~~~~~~~~~
include/linux/percpu-defs.h:113:9: note: in expansion of macro 'DEFINE_PER_CPU_SECTION'
113 | DEFINE_PER_CPU_SECTION(type, name, "")
| ^~~~~~~~~~~~~~~~~~~~~~
include/rv/ltl_monitor.h:69:16: note: in expansion of macro 'DEFINE_PER_CPU'
69 | static DEFINE_PER_CPU(struct ltl_monitor, ltl_monitor);
| ^~~~~~~~~~~~~~
>> include/rv/ltl_monitor.h:69:51: error: section attribute cannot be specified for local variables
69 | static DEFINE_PER_CPU(struct ltl_monitor, ltl_monitor);
| ^~~~~~~~~~~
include/linux/percpu-defs.h:92:51: note: in definition of macro 'DEFINE_PER_CPU_SECTION'
92 | extern __PCPU_ATTRS(sec) __typeof__(type) name; \
| ^~~~
include/rv/ltl_monitor.h:69:16: note: in expansion of macro 'DEFINE_PER_CPU'
69 | static DEFINE_PER_CPU(struct ltl_monitor, ltl_monitor);
| ^~~~~~~~~~~~~~
>> include/rv/ltl_monitor.h:69:51: error: section attribute cannot be specified for local variables
69 | static DEFINE_PER_CPU(struct ltl_monitor, ltl_monitor);
| ^~~~~~~~~~~
include/linux/percpu-defs.h:93:51: note: in definition of macro 'DEFINE_PER_CPU_SECTION'
93 | __PCPU_ATTRS(sec) __weak __typeof__(type) name
| ^~~~
include/rv/ltl_monitor.h:69:16: note: in expansion of macro 'DEFINE_PER_CPU'
69 | static DEFINE_PER_CPU(struct ltl_monitor, ltl_monitor);
| ^~~~~~~~~~~~~~
>> include/rv/ltl_monitor.h:69:51: error: weak declaration of 'ltl_monitor' must be public
69 | static DEFINE_PER_CPU(struct ltl_monitor, ltl_monitor);
| ^~~~~~~~~~~
include/linux/percpu-defs.h:93:51: note: in definition of macro 'DEFINE_PER_CPU_SECTION'
93 | __PCPU_ATTRS(sec) __weak __typeof__(type) name
| ^~~~
include/rv/ltl_monitor.h:69:16: note: in expansion of macro 'DEFINE_PER_CPU'
69 | static DEFINE_PER_CPU(struct ltl_monitor, ltl_monitor);
| ^~~~~~~~~~~~~~
>> include/rv/ltl_monitor.h:69:51: error: declaration of 'ltl_monitor' with no linkage follows extern declaration
69 | static DEFINE_PER_CPU(struct ltl_monitor, ltl_monitor);
| ^~~~~~~~~~~
include/linux/percpu-defs.h:93:51: note: in definition of macro 'DEFINE_PER_CPU_SECTION'
93 | __PCPU_ATTRS(sec) __weak __typeof__(type) name
| ^~~~
include/rv/ltl_monitor.h:69:16: note: in expansion of macro 'DEFINE_PER_CPU'
69 | static DEFINE_PER_CPU(struct ltl_monitor, ltl_monitor);
| ^~~~~~~~~~~~~~
include/rv/ltl_monitor.h:69:51: note: previous declaration of 'ltl_monitor' with type 'struct ltl_monitor'
69 | static DEFINE_PER_CPU(struct ltl_monitor, ltl_monitor);
| ^~~~~~~~~~~
include/linux/percpu-defs.h:92:51: note: in definition of macro 'DEFINE_PER_CPU_SECTION'
92 | extern __PCPU_ATTRS(sec) __typeof__(type) name; \
| ^~~~
include/rv/ltl_monitor.h:69:16: note: in expansion of macro 'DEFINE_PER_CPU'
69 | static DEFINE_PER_CPU(struct ltl_monitor, ltl_monitor);
| ^~~~~~~~~~~~~~
vim +69 include/rv/ltl_monitor.h
a9769a5b987838 Nam Cao 2025-07-09 61
59c45d176bc0f2 Nam Cao 2025-08-06 62 static struct ltl_monitor *ltl_get_monitor(monitor_target target)
a9769a5b987838 Nam Cao 2025-07-09 63 {
59c45d176bc0f2 Nam Cao 2025-08-06 64 return &target->rv[ltl_monitor_slot].ltl_mon;
a9769a5b987838 Nam Cao 2025-07-09 65 }
50fd6be3de4982 Nam Cao 2025-08-06 66 #elif LTL_MONITOR_TYPE == RV_MON_PER_CPU
50fd6be3de4982 Nam Cao 2025-08-06 67 static struct ltl_monitor *ltl_get_monitor(unsigned int cpu)
50fd6be3de4982 Nam Cao 2025-08-06 68 {
50fd6be3de4982 Nam Cao 2025-08-06 @69 static DEFINE_PER_CPU(struct ltl_monitor, ltl_monitor);
50fd6be3de4982 Nam Cao 2025-08-06 70
50fd6be3de4982 Nam Cao 2025-08-06 71 return per_cpu_ptr(<l_monitor, cpu);
50fd6be3de4982 Nam Cao 2025-08-06 72 }
59c45d176bc0f2 Nam Cao 2025-08-06 73 #endif
a9769a5b987838 Nam Cao 2025-07-09 74
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
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