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From: SeongJae Park <sj@kernel.org>
To: kernel test robot <lkp@intel.com>
Cc: SeongJae Park <sj@kernel.org>,
	llvm@lists.linux.dev,
	oe-kbuild-all@lists.linux.dev,
	damon@lists.linux.dev
Subject: Re: [sj:damon/next 12/59] samples/damon/prcl.c:86:22: warning: implicit conversion from 'unsigned long' to 'unsigned int' changes value from 18446744073709551615 to 4294967295
Date: Sat, 23 Nov 2024 07:44:33 -0800
Message-Id: <20241123154433.52687-1-sj@kernel.org>
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On Sat, 23 Nov 2024 15:20:07 +0800 kernel test robot <lkp@intel.com> wrote:

> tree:   https://git.kernel.org/pub/scm/linux/kernel/git/sj/linux.git damon/next
> head:   78907e9aaa2afc17557ccada5eeafa2f4423ddcc
> commit: 6a0ed0a7aac349150628bda45521200cb75006c2 [12/59] samples/damon/prcl: implement schemes setup
> config: s390-allmodconfig (https://download.01.org/0day-ci/archive/20241123/202411231754.4u5u1Nwv-lkp@intel.com/config)
> compiler: clang version 20.0.0git (https://github.com/llvm/llvm-project 592c0fe55f6d9a811028b5f3507be91458ab2713)
> reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241123/202411231754.4u5u1Nwv-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@intel.com>
> | Closes: https://lore.kernel.org/oe-kbuild-all/202411231754.4u5u1Nwv-lkp@intel.com/
> 
> All warnings (new ones prefixed by >>):
> 
[...]
> >> samples/damon/prcl.c:86:22: warning: implicit conversion from 'unsigned long' to 'unsigned int' changes value from 18446744073709551615 to 4294967295 [-Wconstant-conversion]
>       80 |                         &(struct damos_access_pattern) {
>          |                                                        ~
>       81 |                         .min_sz_region = PAGE_SIZE,
>       82 |                         .max_sz_region = ULONG_MAX,
>       83 |                         .min_nr_accesses = 0,
>       84 |                         .max_nr_accesses = 0,
>       85 |                         .min_age_region = 50,
>       86 |                         .max_age_region = ULONG_MAX},
>          |                                           ^~~~~~~~~
>    include/vdso/limits.h:13:20: note: expanded from macro 'ULONG_MAX'
>       13 | #define ULONG_MAX       (~0UL)
>          |                          ^~~~
>    5 warnings generated.

Thank you for this report!  Just pushed a fix:
https://git.kernel.org/sj/c/74b866938a402fc479938747f93b9ced3c9a1282


Thanks,
SJ

[...]