linux-kernel - Re: [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

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Message-ID: <aPEMRBTVR6rT4MzJ@hovoldconsulting.com>
Date: Thu, 16 Oct 2025 17:16:20 +0200
From: Johan Hovold <johan@...nel.org>
To: kernel test robot <lkp@...el.com>, Thomas Gleixner <tglx@...utronix.de>
Cc: oe-kbuild-all@...ts.linux.dev, linux-kernel@...r.kernel.org,
	x86@...nel.org, Florian Fainelli <florian.fainelli@...adcom.com>,
	Changhuang Liang <changhuang.liang@...rfivetech.com>
Subject: Re: [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'?

On Thu, Oct 16, 2025 at 10:47:56PM +0800, kernel test robot wrote:
> 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,
>          |            ^~~~~~~~~~~~~~

Thomas, this looks like a bad edit on your part where you renamed
imx_mu_probe() back to imx_mu_init() when you removed a line break from
the function header.

Johan