linux-kernel - Re: [PATCH] vdso: Define NSEC_PER_SEC as 64-bit to prevent overflow

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Message-ID: <202508071518.qaTdbvoM-lkp@intel.com>
Date: Thu, 7 Aug 2025 15:37:35 +0800
From: kernel test robot <lkp@...el.com>
To: Wake Liu <wakel@...gle.com>, Andy Lutomirski <luto@...nel.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Vincenzo Frascino <vincenzo.frascino@....com>
Cc: oe-kbuild-all@...ts.linux.dev, linux-kernel@...r.kernel.org,
	wakel@...gle.com
Subject: Re: [PATCH] vdso: Define NSEC_PER_SEC as 64-bit to prevent overflow

Hi Wake,

kernel test robot noticed the following build errors:

[auto build test ERROR on tip/timers/vdso]
[also build test ERROR on linus/master v6.16 next-20250806]
[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/Wake-Liu/vdso-Define-NSEC_PER_SEC-as-64-bit-to-prevent-overflow/20250806-125650
base:   tip/timers/vdso
patch link:    https://lore.kernel.org/r/20250805162153.952693-1-wakel%40google.com
patch subject: [PATCH] vdso: Define NSEC_PER_SEC as 64-bit to prevent overflow
config: m68k-randconfig-r064-20250807 (https://download.01.org/0day-ci/archive/20250807/202508071518.qaTdbvoM-lkp@intel.com/config)
compiler: m68k-linux-gcc (GCC) 9.5.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250807/202508071518.qaTdbvoM-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/202508071518.qaTdbvoM-lkp@intel.com/

All errors (new ones prefixed by >>, old ones prefixed by <<):

>> ERROR: modpost: "__udivdi3" [drivers/leds/leds-sun50i-a100.ko] undefined!
>> ERROR: modpost: "__divdi3" [drivers/leds/leds-sun50i-a100.ko] undefined!
>> ERROR: modpost: "__divdi3" [drivers/clk/qcom/clk-spmi-pmic-div.ko] undefined!
>> ERROR: modpost: "__udivdi3" [drivers/tty/serial/8250/8250_bcm7271.ko] undefined!
>> ERROR: modpost: "__divdi3" [drivers/tty/serial/8250/8250_bcm7271.ko] undefined!
>> ERROR: modpost: "__udivdi3" [drivers/spi/spi-axi-spi-engine.ko] undefined!
>> ERROR: modpost: "__divdi3" [drivers/spi/spi-axi-spi-engine.ko] undefined!
>> ERROR: modpost: "__divdi3" [drivers/spi/spi-dw.ko] undefined!
>> ERROR: modpost: "__udivdi3" [drivers/spi/spi-dw.ko] undefined!
>> ERROR: modpost: "__udivdi3" [drivers/input/touchscreen/ads7846.ko] undefined!
WARNING: modpost: suppressed 3 unresolved symbol warnings because there were too many)

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