linux-kernel - Re: [PATCH v3 2/3] dma: amlogic: Add general DMA driver for A9

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Message-ID: <202602070404.wKMJf0YW-lkp@intel.com>
Date: Sat, 7 Feb 2026 04:33:26 +0800
From: kernel test robot <lkp@...el.com>
To: Xianwei Zhao via B4 Relay <devnull+xianwei.zhao.amlogic.com@...nel.org>,
	Vinod Koul <vkoul@...nel.org>, Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>, Kees Cook <kees@...nel.org>,
	"Gustavo A. R. Silva" <gustavoars@...nel.org>
Cc: llvm@...ts.linux.dev, oe-kbuild-all@...ts.linux.dev,
	linux-amlogic@...ts.infradead.org, dmaengine@...r.kernel.org,
	devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-hardening@...r.kernel.org,
	Xianwei Zhao <xianwei.zhao@...ogic.com>
Subject: Re: [PATCH v3 2/3] dma: amlogic: Add general DMA driver for A9

Hi Xianwei,

kernel test robot noticed the following build warnings:

[auto build test WARNING on 3c8a86ed002ab8fb287ee4ec92f0fd6ac5b291d2]

url:    https://github.com/intel-lab-lkp/linux/commits/Xianwei-Zhao-via-B4-Relay/dt-bindings-dma-Add-Amlogic-A9-SoC-DMA/20260206-170903
base:   3c8a86ed002ab8fb287ee4ec92f0fd6ac5b291d2
patch link:    https://lore.kernel.org/r/20260206-amlogic-dma-v3-2-56fb9f59ed22%40amlogic.com
patch subject: [PATCH v3 2/3] dma: amlogic: Add general DMA driver for A9
config: x86_64-allyesconfig (https://download.01.org/0day-ci/archive/20260207/202602070404.wKMJf0YW-lkp@intel.com/config)
compiler: clang version 20.1.8 (https://github.com/llvm/llvm-project 87f0227cb60147a26a1eeb4fb06e3b505e9c7261)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260207/202602070404.wKMJf0YW-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/202602070404.wKMJf0YW-lkp@intel.com/

All warnings (new ones prefixed by >>):

   In file included from drivers/dma/amlogic-dma.c:7:
>> arch/x86/include/asm/irq.h:39:56: warning: declaration of 'struct pt_regs' will not be visible outside of this function [-Wvisibility]
      39 | extern void __handle_irq(struct irq_desc *desc, struct pt_regs *regs);
         |                                                        ^
>> arch/x86/include/asm/irq.h:44:50: warning: declaration of 'struct cpumask' will not be visible outside of this function [-Wvisibility]
      44 | void arch_trigger_cpumask_backtrace(const struct cpumask *mask,
         |                                                  ^
   2 warnings generated.


vim +39 arch/x86/include/asm/irq.h

a782a7e46bb508 arch/x86/include/asm/irq.h Thomas Gleixner   2015-08-02  38  
7c2a57364cae0f arch/x86/include/asm/irq.h Thomas Gleixner   2020-05-21 @39  extern void __handle_irq(struct irq_desc *desc, struct pt_regs *regs);
22067d4501bfb4 include/asm-x86/irq.h      Thomas Gleixner   2008-05-02  40  
d9112f43021554 arch/x86/include/asm/irq.h Thomas Gleixner   2009-08-20  41  extern void init_ISA_irqs(void);
d9112f43021554 arch/x86/include/asm/irq.h Thomas Gleixner   2009-08-20  42  
b52e0a7c4e4100 arch/x86/include/asm/irq.h Michel Lespinasse 2013-06-06  43  #ifdef CONFIG_X86_LOCAL_APIC
9a01c3ed5cdb35 arch/x86/include/asm/irq.h Chris Metcalf     2016-10-07 @44  void arch_trigger_cpumask_backtrace(const struct cpumask *mask,
8d539b84f1e347 arch/x86/include/asm/irq.h Douglas Anderson  2023-08-04  45  				    int exclude_cpu);
89f579ce99f7e0 arch/x86/include/asm/irq.h Yi Wang           2018-11-22  46  

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