Re: mm/damon/reclaim.c:252:15: error: implicit declaration of function 'damon_commit_ctx'

From: SeongJae Park
Date: Tue Oct 01 2024 - 18:17:26 EST


From: sj@xxxxxxxxxx


Hi Robot,

On Wed, 2 Oct 2024 02:09:06 +0800 kernel test robot <lkp@xxxxxxxxx> wrote:

> tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
> head: e32cde8d2bd7d251a8f9b434143977ddf13dcec6
> commit: 11ddcfc257a3e8d7b13b42148ee7e783f4876da4 mm/damon/reclaim: use damon_commit_ctx()
> date: 3 months ago
> config: x86_64-randconfig-001-20231120 (https://download.01.org/0day-ci/archive/20241002/202410020227.oOh0SBIj-lkp@xxxxxxxxx/config)
> compiler: gcc-12 (Debian 12.2.0-14) 12.2.0
> reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241002/202410020227.oOh0SBIj-lkp@xxxxxxxxx/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@xxxxxxxxx>
> | Closes: https://lore.kernel.org/oe-kbuild-all/202410020227.oOh0SBIj-lkp@xxxxxxxxx/
>
> All errors (new ones prefixed by >>):
>
[...]
mm/damon/reclaim.c:247:15: error: implicit declaration of function 'damon_set_region_biggest_system_ram_default' [-Werror=implicit-function-declaration]
> 247 | err = damon_set_region_biggest_system_ram_default(param_target,
> | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> >> mm/damon/reclaim.c:252:15: error: implicit declaration of function 'damon_commit_ctx' [-Werror=implicit-function-declaration]
> 252 | err = damon_commit_ctx(ctx, param_ctx);
> | ^~~~~~~~~~~~~~~~
> >> mm/damon/reclaim.c:254:9: error: implicit declaration of function 'damon_destroy_ctx'; did you mean 'mm_destroy_cid'? [-Werror=implicit-function-declaration]
> 254 | damon_destroy_ctx(param_ctx);
> | ^~~~~~~~~~~~~~~~~
> | mm_destroy_cid
> mm/damon/reclaim.c: In function 'damon_reclaim_turn':
> mm/damon/reclaim.c:263:23: error: implicit declaration of function 'damon_stop' [-Werror=implicit-function-declaration]
> 263 | err = damon_stop(&ctx, 1);
> | ^~~~~~~~~~
> mm/damon/reclaim.c:273:15: error: implicit declaration of function 'damon_start' [-Werror=implicit-function-declaration]
> 273 | err = damon_start(&ctx, 1, true);
> | ^~~~~~~~~~~
> cc1: some warnings being treated as errors

Thank you for reporting. I tried to reproduce the issue following the kind
reproducer, but I was unable to get the error. Maybe something in testing
setup is wrong? Please let me know if I'm missing something.

$ make W=1 O=../linux.out.kbuild/ ARCH=x86_64 SHELL=/bin/bash drivers/iio/accel/ drivers/iio/chemical/ drivers/iio/dac/ drivers/input/touchscreen/ drivers/mfd/ drivers/usb/host/ mm/damon/
[...]
CC mm/damon/sysfs.o
CC mm/damon/modules-common.o
CC mm/damon/reclaim.o
CC mm/damon/lru_sort.o
AR mm/damon/built-in.a
[...]


Thanks,
SJ

[...]