linux-kernel - Re: mm/hugetlb_cgroup.c:829:44: warning: '%s' directive output may be truncated writing up to 1623 bytes into a region of size between 32 and 63

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Message-ID: <b010db20-d044-4ecf-bb87-af580e4c0f07@huaweicloud.com>
Date: Tue, 23 Dec 2025 09:16:06 +0800
From: Xiujianfeng <xiujianfeng@...weicloud.com>
To: kernel test robot <lkp@...el.com>, Xiu Jianfeng <xiujianfeng@...wei.com>
Cc: oe-kbuild-all@...ts.linux.dev, linux-kernel@...r.kernel.org,
 Andrew Morton <akpm@...ux-foundation.org>,
 Linux Memory Management List <linux-mm@...ck.org>
Subject: Re: mm/hugetlb_cgroup.c:829:44: warning: '%s' directive output may be
 truncated writing up to 1623 bytes into a region of size between 32 and 63



On 12/21/2025 11:23 PM, kernel test robot wrote:
> Hi Xiu,
> 
> FYI, the error/warning still remains.
> 
> tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
> head:   9094662f6707d1d4b53d18baba459604e8bb0783
> commit: 47179fe03588caa13a9bae642b058901709ddc55 mm/hugetlb_cgroup: prepare cftypes based on template
> date:   1 year, 6 months ago
> config: s390-randconfig-001-20251220 (https://download.01.org/0day-ci/archive/20251221/202512212332.9lFRbgdS-lkp@intel.com/config)
> compiler: s390-linux-gcc (GCC) 10.5.0
> reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251221/202512212332.9lFRbgdS-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/202512212332.9lFRbgdS-lkp@intel.com/

Thank you, the fix patch is on the way:

https://lore.kernel.org/all/20251222072359.3626182-1-xiujianfeng@huaweicloud.com/