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

[Rong Chen <rong.a.chen@intel.com>]

On 10/10/20 11:49 AM, Randy Dunlap wrote:
> 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@intel.com>
>>> 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.
>

Hi Randy,

I can reproduce it with the above reproduce steps:

➜  linux git:(92a81562e695) ✗ make 
CROSS_COMPILE=/home/nfs/0day/gcc-9.3.0-nolibc/arceb-elf/bin/arceb-elf- 
ARCH=arc
   CALL    scripts/checksyscalls.sh
   CALL    scripts/atomic/check-atomics.sh
   CHK     include/generated/compile.h
   GEN     .version
   CHK     include/generated/compile.h
   UPD     include/generated/compile.h
   CC      init/version.o
   AR      init/built-in.a
   LD      vmlinux.o
   MODPOST vmlinux.symvers
   MODINFO modules.builtin.modinfo
   GEN     modules.builtin
   LD      .tmp_vmlinux.kallsyms1
/home/nfs/0day/gcc-9.3.0-nolibc/arceb-elf/bin/arceb-elf-ld: 
lib/stackdepot.o: in function `filter_irq_stacks':
/home/nfs/linux/lib/stackdepot.c:331: undefined reference to 
`__irqentry_text_start'
/home/nfs/0day/gcc-9.3.0-nolibc/arceb-elf/bin/arceb-elf-ld: 
/home/nfs/linux/lib/stackdepot.c:331: undefined reference to 
`__irqentry_text_start'
/home/nfs/0day/gcc-9.3.0-nolibc/arceb-elf/bin/arceb-elf-ld: 
lib/stackdepot.o: in function `in_irqentry_text':
/home/nfs/linux/lib/stackdepot.c:323: undefined reference to 
`__irqentry_text_end'
/home/nfs/0day/gcc-9.3.0-nolibc/arceb-elf/bin/arceb-elf-ld: 
/home/nfs/linux/lib/stackdepot.c:323: undefined reference to 
`__irqentry_text_end'
/home/nfs/0day/gcc-9.3.0-nolibc/arceb-elf/bin/arceb-elf-ld: 
/home/nfs/linux/lib/stackdepot.c:324: undefined reference to 
`__softirqentry_text_start'
/home/nfs/0day/gcc-9.3.0-nolibc/arceb-elf/bin/arceb-elf-ld: 
/home/nfs/linux/lib/stackdepot.c:324: undefined reference to 
`__softirqentry_text_start'
/home/nfs/0day/gcc-9.3.0-nolibc/arceb-elf/bin/arceb-elf-ld: 
/home/nfs/linux/lib/stackdepot.c:325: undefined reference to 
`__softirqentry_text_end'
/home/nfs/0day/gcc-9.3.0-nolibc/arceb-elf/bin/arceb-elf-ld: 
/home/nfs/linux/lib/stackdepot.c:325: undefined reference to 
`__softirqentry_text_end'
/home/nfs/0day/gcc-9.3.0-nolibc/arceb-elf/bin/arceb-elf-ld: 
drivers/leds/leds-lp55xx-common.o: in function `devm_led_classdev_register':
/home/nfs/linux/./include/linux/leds.h:193: undefined reference to 
`devm_led_classdev_register_ext'
/home/nfs/0day/gcc-9.3.0-nolibc/arceb-elf/bin/arceb-elf-ld: 
/home/nfs/linux/./include/linux/leds.h:193: undefined reference to 
`devm_led_classdev_register_ext'
make: *** [Makefile:1139: vmlinux] Error 1

Best Regards,
Rong Chen