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Message-ID: <202510162257.g1RUy0bT-lkp@intel.com>
Date: Thu, 16 Oct 2025 22:47:56 +0800
From: kernel test robot <lkp@...el.com>
To: Johan Hovold <johan@...nel.org>
Cc: oe-kbuild-all@...ts.linux.dev, linux-kernel@...r.kernel.org,
x86@...nel.org, Thomas Gleixner <tglx@...utronix.de>,
Florian Fainelli <florian.fainelli@...adcom.com>,
Changhuang Liang <changhuang.liang@...rfivetech.com>
Subject: [tip:irq/drivers 11/18] drivers/irqchip/irq-imx-mu-msi.c:419:16:
error: implicit declaration of function 'imx_mu_probe'; did you mean
'imx_mu_write'?
tree: https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git irq/drivers
head: 45f8fdcfbf4e49075172cf1a3fd812b90160e903
commit: 4265aed28d7de2a643b8e441bc25344f421f2f78 [11/18] irqchip: Pass platform device to platform drivers
config: arm-randconfig-004-20251016 (https://download.01.org/0day-ci/archive/20251016/202510162257.g1RUy0bT-lkp@intel.com/config)
compiler: arm-linux-gnueabi-gcc (GCC) 14.3.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251016/202510162257.g1RUy0bT-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/202510162257.g1RUy0bT-lkp@intel.com/
All error/warnings (new ones prefixed by >>):
drivers/irqchip/irq-imx-mu-msi.c: In function 'imx_mu_imx7ulp_probe':
>> drivers/irqchip/irq-imx-mu-msi.c:419:16: error: implicit declaration of function 'imx_mu_probe'; did you mean 'imx_mu_write'? [-Wimplicit-function-declaration]
419 | return imx_mu_probe(pdev, parent, &imx_mu_cfg_imx7ulp);
| ^~~~~~~~~~~~
| imx_mu_write
drivers/irqchip/irq-imx-mu-msi.c: At top level:
>> drivers/irqchip/irq-imx-mu-msi.c:299:12: warning: 'imx_mu_of_init' defined but not used [-Wunused-function]
299 | static int imx_mu_of_init(struct platform_device *pdev, struct device_node *parent,
| ^~~~~~~~~~~~~~
vim +419 drivers/irqchip/irq-imx-mu-msi.c
298
> 299 static int imx_mu_of_init(struct platform_device *pdev, struct device_node *parent,
300 const struct imx_mu_dcfg *cfg)
301 {
302 struct device_link *pd_link_a;
303 struct device_link *pd_link_b;
304 struct imx_mu_msi *msi_data;
305 struct resource *res;
306 struct device *pd_a;
307 struct device *pd_b;
308 struct device *dev;
309 int ret;
310 int irq;
311
312 dev = &pdev->dev;
313
314 msi_data = devm_kzalloc(&pdev->dev, sizeof(*msi_data), GFP_KERNEL);
315 if (!msi_data)
316 return -ENOMEM;
317
318 msi_data->cfg = cfg;
319
320 msi_data->regs = devm_platform_ioremap_resource_byname(pdev, "processor-a-side");
321 if (IS_ERR(msi_data->regs)) {
322 dev_err(&pdev->dev, "failed to initialize 'regs'\n");
323 return PTR_ERR(msi_data->regs);
324 }
325
326 res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "processor-b-side");
327 if (!res)
328 return -EIO;
329
330 msi_data->msiir_addr = res->start + msi_data->cfg->xTR;
331
332 irq = platform_get_irq(pdev, 0);
333 if (irq < 0)
334 return irq;
335
336 platform_set_drvdata(pdev, msi_data);
337
338 msi_data->clk = devm_clk_get(dev, NULL);
339 if (IS_ERR(msi_data->clk))
340 return PTR_ERR(msi_data->clk);
341
342 pd_a = dev_pm_domain_attach_by_name(dev, "processor-a-side");
343 if (IS_ERR(pd_a))
344 return PTR_ERR(pd_a);
345
346 pd_b = dev_pm_domain_attach_by_name(dev, "processor-b-side");
347 if (IS_ERR(pd_b))
348 return PTR_ERR(pd_b);
349
350 pd_link_a = device_link_add(dev, pd_a,
351 DL_FLAG_STATELESS |
352 DL_FLAG_PM_RUNTIME |
353 DL_FLAG_RPM_ACTIVE);
354
355 if (!pd_link_a) {
356 dev_err(dev, "Failed to add device_link to mu a.\n");
357 goto err_pd_a;
358 }
359
360 pd_link_b = device_link_add(dev, pd_b,
361 DL_FLAG_STATELESS |
362 DL_FLAG_PM_RUNTIME |
363 DL_FLAG_RPM_ACTIVE);
364
365
366 if (!pd_link_b) {
367 dev_err(dev, "Failed to add device_link to mu a.\n");
368 goto err_pd_b;
369 }
370
371 ret = imx_mu_msi_domains_init(msi_data, dev);
372 if (ret)
373 goto err_dm_init;
374
375 pm_runtime_enable(dev);
376
377 irq_set_chained_handler_and_data(irq,
378 imx_mu_msi_irq_handler,
379 msi_data);
380
381 return 0;
382
383 err_dm_init:
384 device_link_remove(dev, pd_b);
385 err_pd_b:
386 device_link_remove(dev, pd_a);
387 err_pd_a:
388 return -EINVAL;
389 }
390
391 static int __maybe_unused imx_mu_runtime_suspend(struct device *dev)
392 {
393 struct imx_mu_msi *priv = dev_get_drvdata(dev);
394
395 clk_disable_unprepare(priv->clk);
396
397 return 0;
398 }
399
400 static int __maybe_unused imx_mu_runtime_resume(struct device *dev)
401 {
402 struct imx_mu_msi *priv = dev_get_drvdata(dev);
403 int ret;
404
405 ret = clk_prepare_enable(priv->clk);
406 if (ret)
407 dev_err(dev, "failed to enable clock\n");
408
409 return ret;
410 }
411
412 static const struct dev_pm_ops imx_mu_pm_ops = {
413 SET_RUNTIME_PM_OPS(imx_mu_runtime_suspend,
414 imx_mu_runtime_resume, NULL)
415 };
416
417 static int imx_mu_imx7ulp_probe(struct platform_device *pdev, struct device_node *parent)
418 {
> 419 return imx_mu_probe(pdev, parent, &imx_mu_cfg_imx7ulp);
420 }
421
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
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