linux-kernel - Re: [PATCH v8 2/8] coresight: core: add a new API to retrieve the helper device

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Message-ID: <202512132024.rsZaNtbp-lkp@intel.com>
Date: Sat, 13 Dec 2025 20:38:29 +0800
From: kernel test robot <lkp@...el.com>
To: Jie Gan <jie.gan@....qualcomm.com>,
	Suzuki K Poulose <suzuki.poulose@....com>,
	Mike Leach <mike.leach@...aro.org>,
	James Clark <james.clark@...aro.org>,
	Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Tingwei Zhang <tingwei.zhang@....qualcomm.com>,
	Mao Jinlong <jinlong.mao@....qualcomm.com>,
	Bjorn Andersson <andersson@...nel.org>,
	Konrad Dybcio <konradybcio@...nel.org>
Cc: llvm@...ts.linux.dev, oe-kbuild-all@...ts.linux.dev,
	coresight@...ts.linaro.org, linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org, linux-arm-msm@...r.kernel.org,
	devicetree@...r.kernel.org, Jie Gan <jie.gan@....qualcomm.com>
Subject: Re: [PATCH v8 2/8] coresight: core: add a new API to retrieve the
 helper device

Hi Jie,

kernel test robot noticed the following build warnings:

[auto build test WARNING on 47b7b5e32bb7264b51b89186043e1ada4090b558]

url:    https://github.com/intel-lab-lkp/linux/commits/Jie-Gan/coresight-core-Refactoring-ctcu_get_active_port-and-make-it-generic/20251211-142430
base:   47b7b5e32bb7264b51b89186043e1ada4090b558
patch link:    https://lore.kernel.org/r/20251211-enable-byte-cntr-for-ctcu-v8-2-3e12ff313191%40oss.qualcomm.com
patch subject: [PATCH v8 2/8] coresight: core: add a new API to retrieve the helper device
config: arm64-randconfig-001-20251213 (https://download.01.org/0day-ci/archive/20251213/202512132024.rsZaNtbp-lkp@intel.com/config)
compiler: clang version 22.0.0git (https://github.com/llvm/llvm-project 1335a05ab8bc8339ce24be3a9da89d8c3f4e0571)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251213/202512132024.rsZaNtbp-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/202512132024.rsZaNtbp-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> Warning: drivers/hwtracing/coresight/coresight-core.c:600 function parameter 'subtype' not described in 'coresight_get_helper'
>> Warning: drivers/hwtracing/coresight/coresight-core.c:600 function parameter 'subtype' not described in 'coresight_get_helper'

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