linux-kernel - Re: [PATCH v2] refscale: Add tests for local_irq_disable() vs local_interrupt

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Message-ID: <202506201210.X8F6SB7c-lkp@intel.com>
Date: Fri, 20 Jun 2025 12:46:01 +0800
From: kernel test robot <lkp@...el.com>
To: Joel Fernandes <joelagnelf@...dia.com>, linux-kernel@...r.kernel.org,
	Davidlohr Bueso <dave@...olabs.net>,
	"Paul E. McKenney" <paulmck@...nel.org>,
	Josh Triplett <josh@...htriplett.org>,
	Frederic Weisbecker <frederic@...nel.org>,
	Neeraj Upadhyay <neeraj.upadhyay@...nel.org>,
	Boqun Feng <boqun.feng@...il.com>,
	Uladzislau Rezki <urezki@...il.com>,
	Steven Rostedt <rostedt@...dmis.org>,
	Mathieu Desnoyers <mathieu.desnoyers@...icios.com>,
	Lai Jiangshan <jiangshanlai@...il.com>,
	Zqiang <qiang.zhang@...ux.dev>, Miguel Ojeda <ojeda@...nel.org>,
	Alex Gaynor <alex.gaynor@...il.com>, Gary Guo <gary@...yguo.net>,
	Björn Roy Baron <bjorn3_gh@...tonmail.com>,
	Benno Lossin <benno.lossin@...ton.me>,
	Andreas Hindborg <a.hindborg@...nel.org>,
	Alice Ryhl <aliceryhl@...gle.com>, Trevor Gross <tmgross@...ch.edu>,
	Danilo Krummrich <dakr@...nel.org>
Cc: oe-kbuild-all@...ts.linux.dev, Lyude Paul <lyude@...hat.com>,
	rcu@...r.kernel.org, rust-for-linux@...r.kernel.org
Subject: Re: [PATCH v2] refscale: Add tests for local_irq_disable() vs
 local_interrupt_disable()

Hi Joel,

kernel test robot noticed the following build errors:

[auto build test ERROR on rcu/rcu/dev]
[also build test ERROR on linus/master v6.16-rc2 next-20250619]
[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/Joel-Fernandes/refscale-Add-tests-for-local_irq_disable-vs-local_interrupt_disable/20250620-015541
base:   https://git.kernel.org/pub/scm/linux/kernel/git/rcu/linux.git rcu/dev
patch link:    https://lore.kernel.org/r/20250619175335.2905836-1-joelagnelf%40nvidia.com
patch subject: [PATCH v2] refscale: Add tests for local_irq_disable() vs local_interrupt_disable()
config: x86_64-buildonly-randconfig-004-20250620 (https://download.01.org/0day-ci/archive/20250620/202506201210.X8F6SB7c-lkp@intel.com/config)
compiler: gcc-12 (Debian 12.2.0-14) 12.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250620/202506201210.X8F6SB7c-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/202506201210.X8F6SB7c-lkp@intel.com/

All errors (new ones prefixed by >>):

   kernel/rcu/refscale.c: In function 'ref_local_interrupt_section':
>> kernel/rcu/refscale.c:533:17: error: implicit declaration of function 'local_interrupt_disable'; did you mean 'local_irq_disable'? [-Werror=implicit-function-declaration]
     533 |                 local_interrupt_disable();
         |                 ^~~~~~~~~~~~~~~~~~~~~~~
         |                 local_irq_disable
>> kernel/rcu/refscale.c:534:17: error: implicit declaration of function 'local_interrupt_enable'; did you mean 'local_irq_enable'? [-Werror=implicit-function-declaration]
     534 |                 local_interrupt_enable();
         |                 ^~~~~~~~~~~~~~~~~~~~~~
         |                 local_irq_enable
   cc1: some warnings being treated as errors


vim +533 kernel/rcu/refscale.c

   526	
   527	// IRQ disable/enable tests using interrupt_disable/enable.
   528	static void ref_local_interrupt_section(const int nloops)
   529	{
   530		int i;
   531	
   532		for (i = nloops; i >= 0; i--) {
 > 533			local_interrupt_disable();
 > 534			local_interrupt_enable();
   535		}
   536	}
   537	

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki