Subject: Re: [PATCH net-next v2 4/5] netconsole: Use printk context for CPU and task information

From: kernel test robot <[email-masked]>
Date: Wed, 21 Jan 2026 13:40:30 +0800

Hi Breno,

kernel test robot noticed the following build errors:

[auto build test ERROR on 956f569c90ab507559342d289f4c923adfbf06f5]

url:    https://github.com/intel-lab-lkp/linux/commits/Breno-Leitao/printk-Add-execution-context-task-name-CPU-to-printk_info/20260121-033457
base:   956f569c90ab507559342d289f4c923adfbf06f5
patch link:    https://lore.kernel.org/r/20260120-nbcon-v2-4-b61f960587a8%40debian.org
patch subject: [PATCH net-next v2 4/5] netconsole: Use printk context for CPU and task information
config: csky-randconfig-r134-20260121 (https://download.01.org/0day-ci/archive/20260121/[email-masked]/config)
compiler: csky-linux-gcc (GCC) 13.4.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260121/[email-masked]/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 <[email-masked]>
| Closes: https://lore.kernel.org/oe-kbuild-all/[email-masked]/

All error/warnings (new ones prefixed by >>):

   drivers/net/netconsole.c: In function 'sysdata_append_cpu_nr':
>> drivers/net/netconsole.c:1365:31: error: 'struct nbcon_write_context' has no member named 'cpu'
    1365 |                          wctxt->cpu);
         |                               ^~
   drivers/net/netconsole.c: In function 'sysdata_append_taskname':
>> drivers/net/netconsole.c:1373:31: error: 'struct nbcon_write_context' has no member named 'comm'
    1373 |                          wctxt->comm);
         |                               ^~
   drivers/net/netconsole.c: In function 'sysdata_append_cpu_nr':
>> drivers/net/netconsole.c:1366:1: warning: control reaches end of non-void function [-Wreturn-type]
    1366 | }
         | ^
   drivers/net/netconsole.c: In function 'sysdata_append_taskname':
   drivers/net/netconsole.c:1374:1: warning: control reaches end of non-void function [-Wreturn-type]
    1374 | }
         | ^

vim +1365 drivers/net/netconsole.c

  1359	
  1360	static int sysdata_append_cpu_nr(struct netconsole_target *nt, int offset,
  1361					 struct nbcon_write_context *wctxt)
  1362	{
  1363		return scnprintf(&nt->sysdata[offset],
  1364				 MAX_EXTRADATA_ENTRY_LEN, " cpu=%u\n",
> 1365				 wctxt->cpu);
> 1366	}
  1367	
  1368	static int sysdata_append_taskname(struct netconsole_target *nt, int offset,
  1369					   struct nbcon_write_context *wctxt)
  1370	{
  1371		return scnprintf(&nt->sysdata[offset],
  1372				 MAX_EXTRADATA_ENTRY_LEN, " taskname=%s\n",
> 1373				 wctxt->comm);
  1374	}
  1375	

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