Re: [kbuild-all] Re: arceb-elf-ld: include/linux/leds.h:193: undefined reference to `devm_led_classdev_register_ext'

[Randy Dunlap]

On 10/9/20 8:19 PM, Rong Chen wrote:
> 
> 
> On 10/8/20 3:15 PM, Pavel Machek wrote:
>> Hi!
>>
>>> tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
>>> head:   c85fb28b6f999db9928b841f63f1beeb3074eeca
>>> commit: 92a81562e695628086acb92f95090ab09d9b9ec0 leds: lp55xx: Add multicolor framework support to lp55xx
>>> date:   3 months ago
>>> config: arc-randconfig-r035-20201008 (attached as .config)
>>> compiler: arceb-elf-gcc (GCC) 9.3.0
>>> reproduce (this is a W=1 build):
>>>          wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
>>>          chmod +x ~/bin/make.cross
>>>          # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=92a81562e695628086acb92f95090ab09d9b9ec0
>>>          git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
>>>          git fetch --no-tags linus master
>>>          git checkout 92a81562e695628086acb92f95090ab09d9b9ec0
>>>          # save the attached .config to linux build tree
>>>          COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=arc
>>>
>>> If you fix the issue, kindly add following tag as appropriate
>>> Reported-by: kernel test robot <lkp@xxxxxxxxx>
>> Hi robot. Do you have human around to talk to?
>>
>>> All errors (new ones prefixed by >>):
>>>
>>>     arceb-elf-ld: lib/stackdepot.o: in function `filter_irq_stacks':
>>>     lib/stackdepot.c:331: undefined reference to `__irqentry_text_start'
>>>     arceb-elf-ld: lib/stackdepot.c:331: undefined reference to `__irqentry_text_start'
>>>     arceb-elf-ld: lib/stackdepot.o: in function `in_irqentry_text':
>>>     lib/stackdepot.c:323: undefined reference to `__irqentry_text_end'
>>>     arceb-elf-ld: lib/stackdepot.c:323: undefined reference to `__irqentry_text_end'
>>>     arceb-elf-ld: lib/stackdepot.c:324: undefined reference to `__softirqentry_text_start'
>>>     arceb-elf-ld: lib/stackdepot.c:324: undefined reference to `__softirqentry_text_start'
>>>     arceb-elf-ld: lib/stackdepot.c:325: undefined reference to `__softirqentry_text_end'
>>>     arceb-elf-ld: lib/stackdepot.c:325: undefined reference to
>> What is going on here? Did you just start testing arc? The commit
>> is... really old.
>>
> 
> Hi Pavel,
> 
> Only this error "arceb-elf-ld: include/linux/leds.h:193: undefined reference to `devm_led_classdev_register_ext'" was found in this commit,
> other errors are for reference only, and the test config is a rand config, so it's discovered by chance.

Hi,
Just for the record, I could not reproduce the build error
with the config file that was provided.

-- 
~Randy