linux-kernel - Re: [PATCH 3/8] irqchip/loongson-pch-lpc: extract non-ACPI-related code from ACPI init

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Message-ID: <202601312251.S1bOvHGe-lkp@intel.com>
Date: Sat, 31 Jan 2026 22:05:02 +0800
From: kernel test robot <lkp@...el.com>
To: Icenowy Zheng <zhengxingda@...as.ac.cn>,
	Thomas Gleixner <tglx@...nel.org>, Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Thomas Bogendoerfer <tsbogend@...ha.franken.de>,
	Huacai Chen <chenhuacai@...nel.org>,
	Jiaxun Yang <jiaxun.yang@...goat.com>
Cc: llvm@...ts.linux.dev, oe-kbuild-all@...ts.linux.dev,
	linux-kernel@...r.kernel.org, devicetree@...r.kernel.org,
	linux-mips@...r.kernel.org, Icenowy Zheng <zhengxingda@...as.ac.cn>
Subject: Re: [PATCH 3/8] irqchip/loongson-pch-lpc: extract non-ACPI-related
 code from ACPI init

Hi Icenowy,

kernel test robot noticed the following build warnings:

[auto build test WARNING on tip/irq/core]
[also build test WARNING on robh/for-next krzk/for-next krzk-dt/for-next krzk-mem-ctrl/for-next linus/master v6.19-rc7 next-20260130]
[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/Icenowy-Zheng/genirq-reserve-NR_IRQS_LEGACY-IRQs-in-dynirq-by-default/20260131-175403
base:   tip/irq/core
patch link:    https://lore.kernel.org/r/20260131094547.455916-4-zhengxingda%40iscas.ac.cn
patch subject: [PATCH 3/8] irqchip/loongson-pch-lpc: extract non-ACPI-related code from ACPI init
config: loongarch-allnoconfig (https://download.01.org/0day-ci/archive/20260131/202601312251.S1bOvHGe-lkp@intel.com/config)
compiler: clang version 22.0.0git (https://github.com/llvm/llvm-project 9b8addffa70cee5b2acc5454712d9cf78ce45710)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260131/202601312251.S1bOvHGe-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/202601312251.S1bOvHGe-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> drivers/irqchip/irq-loongson-pch-lpc.c:232:18: warning: unused variable 'priv' [-Wunused-variable]
     232 |         struct pch_lpc *priv;
         |                         ^~~~
   1 warning generated.


vim +/priv +232 drivers/irqchip/irq-loongson-pch-lpc.c

   227	
   228	int __init pch_lpc_acpi_init(struct irq_domain *parent,
   229						struct acpi_madt_lpc_pic *acpi_pchlpc)
   230	{
   231		int parent_irq;
 > 232		struct pch_lpc *priv;

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