linux-kernel - Re: [PATCH] printk: add early_counter

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Message-ID: <202511251534.9kMSsAH6-lkp@intel.com>
Date: Tue, 25 Nov 2025 15:52:26 +0800
From: kernel test robot <lkp@...el.com>
To: Tim Bird <tim@...d.org>, pmladek@...e.com,
	Steve Rostedt <rostedt@...dmis.org>, john.ogness@...utronix.de,
	senozhatsky@...omium.org
Cc: oe-kbuild-all@...ts.linux.dev, Tim Bird <Tim.Bird@...y.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Linux Memory Management List <linux-mm@...ck.org>,
	Francesco Valla <francesco@...la.it>,
	LKML <linux-kernel@...r.kernel.org>,
	Linux Embedded <linux-embedded@...r.kernel.org>
Subject: Re: [PATCH] printk: add early_counter_ns routine for printk blind
 spot

Hi Tim,

kernel test robot noticed the following build errors:

[auto build test ERROR on linus/master]
[also build test ERROR on v6.18-rc7]
[cannot apply to akpm-mm/mm-everything next-20251124]
[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/Tim-Bird/printk-add-early_counter_ns-routine-for-printk-blind-spot/20251125-133242
base:   linus/master
patch link:    https://lore.kernel.org/r/39b09edb-8998-4ebd-a564-7d594434a981%40bird.org
patch subject: [PATCH] printk: add early_counter_ns routine for printk blind spot
config: powerpc-allnoconfig (https://download.01.org/0day-ci/archive/20251125/202511251534.9kMSsAH6-lkp@intel.com/config)
compiler: powerpc-linux-gcc (GCC) 15.1.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251125/202511251534.9kMSsAH6-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/202511251534.9kMSsAH6-lkp@intel.com/

All errors (new ones prefixed by >>):

   powerpc-linux-ld: init/main.o: in function `kernel_init':
>> main.c:(.ref.text+0x144): undefined reference to `__udivdi3'

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