linux-kernel - [tip:irq/core 14/15] kernel/irq/manage.c:1324:7: error: 'force_irqthreads' undeclared; did you mean 'force_irqthreads

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Date:   Wed, 11 Aug 2021 00:54:23 +0800
From:   kernel test robot <lkp@...el.com>
To:     Tanner Love <tannerlove@...gle.com>
Cc:     kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org,
        x86@...nel.org, Thomas Gleixner <tglx@...utronix.de>,
        Eric Dumazet <edumazet@...gle.com>,
        Kees Cook <keescook@...omium.org>
Subject: [tip:irq/core 14/15] kernel/irq/manage.c:1324:7: error:
 'force_irqthreads' undeclared; did you mean 'force_irqthreads_key'?

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git irq/core
head:   1d07a835819e2d3c85af8f093a02c2e6bca422d6
commit: af5b7fe6bb77ac775d446e2f25f013d5df551e9a [14/15] genirq: Change force_irqthreads to a static key
config: i386-tinyconfig (attached as .config)
compiler: gcc-9 (Debian 9.3.0-22) 9.3.0
reproduce (this is a W=1 build):
        # https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git/commit/?id=af5b7fe6bb77ac775d446e2f25f013d5df551e9a
        git remote add tip https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git
        git fetch --no-tags tip irq/core
        git checkout af5b7fe6bb77ac775d446e2f25f013d5df551e9a
        # save the attached .config to linux build tree
        mkdir build_dir
        make W=1 O=build_dir ARCH=i386 SHELL=/bin/bash kernel/irq/

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@...el.com>

All errors (new ones prefixed by >>):

   kernel/irq/manage.c: In function 'irq_setup_forced_threading':
>> kernel/irq/manage.c:1324:7: error: 'force_irqthreads' undeclared (first use in this function); did you mean 'force_irqthreads_key'?
    1324 |  if (!force_irqthreads)
         |       ^~~~~~~~~~~~~~~~
         |       force_irqthreads_key
   kernel/irq/manage.c:1324:7: note: each undeclared identifier is reported only once for each function it appears in


vim +1324 kernel/irq/manage.c

a92444c6b2225a Thomas Gleixner 2014-02-15  1321  
2a1d3ab8986d1b Thomas Gleixner 2015-09-21  1322  static int irq_setup_forced_threading(struct irqaction *new)
8d32a307e4faa8 Thomas Gleixner 2011-02-23  1323  {
8d32a307e4faa8 Thomas Gleixner 2011-02-23 @1324  	if (!force_irqthreads)
2a1d3ab8986d1b Thomas Gleixner 2015-09-21  1325  		return 0;
8d32a307e4faa8 Thomas Gleixner 2011-02-23  1326  	if (new->flags & (IRQF_NO_THREAD | IRQF_PERCPU | IRQF_ONESHOT))
2a1d3ab8986d1b Thomas Gleixner 2015-09-21  1327  		return 0;
8d32a307e4faa8 Thomas Gleixner 2011-02-23  1328  
d1f0301b3333ee Thomas Gleixner 2018-08-03  1329  	/*
d1f0301b3333ee Thomas Gleixner 2018-08-03  1330  	 * No further action required for interrupts which are requested as
d1f0301b3333ee Thomas Gleixner 2018-08-03  1331  	 * threaded interrupts already
d1f0301b3333ee Thomas Gleixner 2018-08-03  1332  	 */
d1f0301b3333ee Thomas Gleixner 2018-08-03  1333  	if (new->handler == irq_default_primary_handler)
d1f0301b3333ee Thomas Gleixner 2018-08-03  1334  		return 0;
d1f0301b3333ee Thomas Gleixner 2018-08-03  1335  
8d32a307e4faa8 Thomas Gleixner 2011-02-23  1336  	new->flags |= IRQF_ONESHOT;
8d32a307e4faa8 Thomas Gleixner 2011-02-23  1337  
2a1d3ab8986d1b Thomas Gleixner 2015-09-21  1338  	/*
2a1d3ab8986d1b Thomas Gleixner 2015-09-21  1339  	 * Handle the case where we have a real primary handler and a
2a1d3ab8986d1b Thomas Gleixner 2015-09-21  1340  	 * thread handler. We force thread them as well by creating a
2a1d3ab8986d1b Thomas Gleixner 2015-09-21  1341  	 * secondary action.
2a1d3ab8986d1b Thomas Gleixner 2015-09-21  1342  	 */
d1f0301b3333ee Thomas Gleixner 2018-08-03  1343  	if (new->handler && new->thread_fn) {
2a1d3ab8986d1b Thomas Gleixner 2015-09-21  1344  		/* Allocate the secondary action */
2a1d3ab8986d1b Thomas Gleixner 2015-09-21  1345  		new->secondary = kzalloc(sizeof(struct irqaction), GFP_KERNEL);
2a1d3ab8986d1b Thomas Gleixner 2015-09-21  1346  		if (!new->secondary)
2a1d3ab8986d1b Thomas Gleixner 2015-09-21  1347  			return -ENOMEM;
2a1d3ab8986d1b Thomas Gleixner 2015-09-21  1348  		new->secondary->handler = irq_forced_secondary_handler;
2a1d3ab8986d1b Thomas Gleixner 2015-09-21  1349  		new->secondary->thread_fn = new->thread_fn;
2a1d3ab8986d1b Thomas Gleixner 2015-09-21  1350  		new->secondary->dev_id = new->dev_id;
2a1d3ab8986d1b Thomas Gleixner 2015-09-21  1351  		new->secondary->irq = new->irq;
2a1d3ab8986d1b Thomas Gleixner 2015-09-21  1352  		new->secondary->name = new->name;
2a1d3ab8986d1b Thomas Gleixner 2015-09-21  1353  	}
2a1d3ab8986d1b Thomas Gleixner 2015-09-21  1354  	/* Deal with the primary handler */
8d32a307e4faa8 Thomas Gleixner 2011-02-23  1355  	set_bit(IRQTF_FORCED_THREAD, &new->thread_flags);
8d32a307e4faa8 Thomas Gleixner 2011-02-23  1356  	new->thread_fn = new->handler;
8d32a307e4faa8 Thomas Gleixner 2011-02-23  1357  	new->handler = irq_default_primary_handler;
2a1d3ab8986d1b Thomas Gleixner 2015-09-21  1358  	return 0;
8d32a307e4faa8 Thomas Gleixner 2011-02-23  1359  }
8d32a307e4faa8 Thomas Gleixner 2011-02-23  1360  

:::::: The code at line 1324 was first introduced by commit
:::::: 8d32a307e4faa8b123dc8a9cd56d1a7525f69ad3 genirq: Provide forced interrupt threading

:::::: TO: Thomas Gleixner <tglx@...utronix.de>
:::::: CC: Thomas Gleixner <tglx@...utronix.de>

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