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X-CSE-ConnectionGUID: cVKrceeDTJOflrIG7f0ysQ== X-CSE-MsgGUID: qporFcvqSg67VhAXgQvgwg== X-IronPort-AV: E=McAfee;i="6800,10657,11918"; a="108736261" X-IronPort-AV: E=Sophos;i="6.27,127,1787036400"; d="scan'208";a="108736261" Received: from orviesa010.jf.intel.com ([10.64.159.150]) by fmvoesa102.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 27 Sep 2026 14:28:52 -0700 X-CSE-ConnectionGUID: FuveklkhQT64J/mvpTGKRg== X-CSE-MsgGUID: x1oSQllSSae+0vfbi7mrWg== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.27,127,1787036400"; d="scan'208";a="273028005" Received: from lkp-server01.sh.intel.com (HELO 462990a40a85) ([10.239.97.150]) by orviesa010.jf.intel.com with ESMTP; 27 Sep 2026 14:28:51 -0700 Received: from kbuild by 462990a40a85 with local (Exim 4.98.2) (envelope-from ) id 1xAwQR-00000000NBg-3LFc; Sun, 27 Sep 2026 21:28:47 +0000 Date: Mon, 28 Sep 2026 05:28:22 +0800 From: kernel test robot To: "Thomas =?utf-8?Q?Wei=C3=9Fschuh"?= Cc: llvm@lists.linux.dev, oe-kbuild-all@lists.linux.dev Subject: [thomas-weissschuh:b4/vdso-timens-conditional 12/12] arch/sparc/include/uapi/../../../../lib/vdso/gettimeofday.c:483:10: error: call to undeclared function 'clock_getres_fallback'; ISO C99 and later do not support implicit function declarations Message-ID: <202609280758.uT2tKvOE-lkp@intel.com> User-Agent: s-nail v14.9.25 Precedence: bulk X-Mailing-List: llvm@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Hi Thomas, First bad commit (maybe !=3D root cause): tree: https://git.kernel.org/pub/scm/linux/kernel/git/thomas.weissschuh/l= inux.git b4/vdso-timens-conditional head: dbe6d2a5ee3233a9e819a0663236161d27841d5a commit: dbe6d2a5ee3233a9e819a0663236161d27841d5a [12/12] VDSO_HAS_CLOCK_GET= RES config: sparc64-defconfig (https://download.01.org/0day-ci/archive/20260928= /202609280758.uT2tKvOE-lkp@intel.com/config) compiler: clang version 24.0.0git (https://github.com/llvm/llvm-project 5f6= 09f950d2e80addf5566623013db68394334db) reproduce (this is a W=3D1 build): (https://download.01.org/0day-ci/archive= /20260928/202609280758.uT2tKvOE-lkp@intel.com/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new versio= n of the same patch/commit), kindly add following tags | Reported-by: kernel test robot | Closes: https://lore.kernel.org/oe-kbuild-all/202609280758.uT2tKvOE-lkp@i= ntel.com/ All errors (new ones prefixed by >>): In file included from arch/sparc/vdso/vclock_gettime.c:22: >> arch/sparc/include/uapi/../../../../lib/vdso/gettimeofday.c:483:10: erro= r: call to undeclared function 'clock_getres_fallback'; ISO C99 and later d= o not support implicit function declarations [-Wimplicit-function-declarati= on] 483 | return clock_getres_fallback(clock, res); | ^ arch/sparc/include/uapi/../../../../lib/vdso/gettimeofday.c:483:10: note= : did you mean 'clock_getres32_fallback'? arch/sparc/include/uapi/../../../../lib/vdso/gettimeofday.c:97:28: note:= 'clock_getres32_fallback' declared here 97 | static __always_inline int clock_getres32_fallback(clockid_t clk= id, struct old_timespec32 *ts) | ^ 1 error generated. vim +/clock_getres_fallback +483 arch/sparc/include/uapi/../../../../lib/vd= so/gettimeofday.c 502a590a170b3b3 Thomas Gleixner 2019-07-28 473 =20 08cd5e1de815842 Thomas Wei=C3=9Fschuh 2026-02-27 474 static ac1a42f4e4e296b Thomas Wei=C3=9Fschuh 2025-02-04 475 int __cvdso_clock_g= etres_data(const struct vdso_time_data *vd, clockid_t clock, e876f0b69dc993e Christophe Leroy 2020-02-07 476 struct __kernel= _timespec *res) 502a590a170b3b3 Thomas Gleixner 2019-07-28 477 { 34f888e3405acef Thomas Wei=C3=9Fschuh 2025-07-01 478 bool ok; 00b26474c2f1613 Vincenzo Frascino 2019-06-21 479 =20 34f888e3405acef Thomas Wei=C3=9Fschuh 2025-07-01 480 ok =3D __cvdso_cl= ock_getres_common(vd, clock, res); 34f888e3405acef Thomas Wei=C3=9Fschuh 2025-07-01 481 =20 34f888e3405acef Thomas Wei=C3=9Fschuh 2025-07-01 482 if (unlikely(!ok)) 00b26474c2f1613 Vincenzo Frascino 2019-06-21 @483 return clock_getres_fa= llback(clock, res); 502a590a170b3b3 Thomas Gleixner 2019-07-28 484 return 0; 00b26474c2f1613 Vincenzo Frascino 2019-06-21 485 } 00b26474c2f1613 Vincenzo Frascino 2019-06-21 486 =20 :::::: The code at line 483 was first introduced by commit :::::: 00b26474c2f1613d7ab894c525f775c67c8a9e8f lib/vdso: Provide generic V= DSO implementation :::::: TO: Vincenzo Frascino :::::: CC: Thomas Gleixner -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki