linux-kernel - Re: [PATCH 11/12] selftests/nolibc: Increase coverage of printf format tests

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Message-ID: <202602031944.7j98nfRE-lkp@intel.com>
Date: Tue, 3 Feb 2026 19:22:28 +0100
From: kernel test robot <lkp@...el.com>
To: david.laight.linux@...il.com, Willy Tarreau <w@....eu>,
	Thomas Weißschuh <linux@...ssschuh.net>,
	linux-kernel@...r.kernel.org, Cheng Li <lechain@...il.com>
Cc: oe-kbuild-all@...ts.linux.dev,
	David Laight <david.laight.linux@...il.com>
Subject: Re: [PATCH 11/12] selftests/nolibc: Increase coverage of printf
 format tests

Hi,

kernel test robot noticed the following build warnings:

[auto build test WARNING on next-20260202]

url:    https://github.com/intel-lab-lkp/linux/commits/david-laight-linux-gmail-com/tools-nolibc-printf-Move-length-check-to-snprintf-callback/20260203-183919
base:   next-20260202
patch link:    https://lore.kernel.org/r/20260203103000.20206-12-david.laight.linux%40gmail.com
patch subject: [PATCH 11/12] selftests/nolibc: Increase coverage of printf format tests
config: x86_64-allnoconfig-bpf (https://download.01.org/0day-ci/archive/20260203/202602031944.7j98nfRE-lkp@intel.com/config)
compiler: gcc-14 (Debian 14.2.0-19) 14.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260203/202602031944.7j98nfRE-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/202602031944.7j98nfRE-lkp@intel.com/

All warnings (new ones prefixed by >>):

   nolibc-test.c: In function 'test_dirent':
   nolibc-test.c:784:17: warning: 'readdir_r' is deprecated [-Wdeprecated-declarations]
     784 |                 ret = readdir_r(dir, &dirent, &result);
         |                 ^~~
   In file included from nolibc-test.c:32:
   /usr/include/dirent.h:185:12: note: declared here
     185 | extern int readdir_r (DIR *__restrict __dirp,
         |            ^~~~~~~~~
   nolibc-test.c: At top level:
>> nolibc-test.c:1654:1: warning: 'mat' attribute directive ignored [-Wattributes]
    1654 | {
         | ^
--
>> nolibc-test.c:1654:1: warning: 'mat' attribute directive ignored [-Wattributes]
    1654 | {
         | ^

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki