linux-kernel - Re: [PATCH v8 3/5] treewide: Replace 'get_task_comm()' with 'strscpy

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Message-ID: <202508221127.LiaxcbdW-lkp@intel.com>
Date: Fri, 22 Aug 2025 11:59:51 +0800
From: kernel test robot <lkp@...el.com>
To: Bhupesh <bhupesh@...lia.com>, akpm@...ux-foundation.org
Cc: llvm@...ts.linux.dev, oe-kbuild-all@...ts.linux.dev, bhupesh@...lia.com,
	kernel-dev@...lia.com, linux-kernel@...r.kernel.org,
	bpf@...r.kernel.org, linux-perf-users@...r.kernel.org,
	linux-fsdevel@...r.kernel.org, linux-mm@...ck.org,
	oliver.sang@...el.com, lkp@...el.com, laoar.shao@...il.com,
	pmladek@...e.com, rostedt@...dmis.org,
	mathieu.desnoyers@...icios.com, arnaldo.melo@...il.com,
	alexei.starovoitov@...il.com, andrii.nakryiko@...il.com,
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	mingo@...hat.com, juri.lelli@...hat.com, bsegall@...gle.com,
	mgorman@...e.de
Subject: Re: [PATCH v8 3/5] treewide: Replace 'get_task_comm()' with
 'strscpy_pad()'

Hi Bhupesh,

kernel test robot noticed the following build errors:

[auto build test ERROR on 5303936d609e09665deda94eaedf26a0e5c3a087]

url:    https://github.com/intel-lab-lkp/linux/commits/Bhupesh/exec-Remove-obsolete-comments/20250821-182426
base:   5303936d609e09665deda94eaedf26a0e5c3a087
patch link:    https://lore.kernel.org/r/20250821102152.323367-4-bhupesh%40igalia.com
patch subject: [PATCH v8 3/5] treewide: Replace 'get_task_comm()' with 'strscpy_pad()'
config: x86_64-buildonly-randconfig-001-20250822 (https://download.01.org/0day-ci/archive/20250822/202508221127.LiaxcbdW-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/20250822/202508221127.LiaxcbdW-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/202508221127.LiaxcbdW-lkp@intel.com/

All errors (new ones prefixed by >>):

>> drivers/gpu/drm/panthor/panthor_sched.c:3420:2: error: call to undeclared function 'get_task_comm'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
    3420 |         get_task_comm(group->task_info.comm, task);
         |         ^
   drivers/gpu/drm/panthor/panthor_sched.c:3420:2: note: did you mean 'get_task_mm'?
   include/linux/sched/mm.h:151:26: note: 'get_task_mm' declared here
     151 | extern struct mm_struct *get_task_mm(struct task_struct *task);
         |                          ^
   1 error generated.


vim +/get_task_comm +3420 drivers/gpu/drm/panthor/panthor_sched.c

de85488138247d Boris Brezillon 2024-02-29  3414  
33b9cb6dcda252 Chia-I Wu       2025-07-17  3415  static void group_init_task_info(struct panthor_group *group)
33b9cb6dcda252 Chia-I Wu       2025-07-17  3416  {
33b9cb6dcda252 Chia-I Wu       2025-07-17  3417  	struct task_struct *task = current->group_leader;
33b9cb6dcda252 Chia-I Wu       2025-07-17  3418  
33b9cb6dcda252 Chia-I Wu       2025-07-17  3419  	group->task_info.pid = task->pid;
33b9cb6dcda252 Chia-I Wu       2025-07-17 @3420  	get_task_comm(group->task_info.comm, task);
33b9cb6dcda252 Chia-I Wu       2025-07-17  3421  }
33b9cb6dcda252 Chia-I Wu       2025-07-17  3422  

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