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X-CSE-ConnectionGUID: W4neiYShTua3K36Fgm+JBg== X-CSE-MsgGUID: Cr4m9X8qTV6lA98mJamEHQ== X-IronPort-AV: E=McAfee;i="6800,10657,11918"; a="101415601" X-IronPort-AV: E=Sophos;i="6.27,127,1787036400"; d="scan'208";a="101415601" Received: from orviesa001.jf.intel.com ([10.64.159.141]) by orvoesa105.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 27 Sep 2026 13:29:00 -0700 X-CSE-ConnectionGUID: Htb2uIH5SwuqwPwjhXQx/Q== X-CSE-MsgGUID: 3YQ1B4DZReCjNLXhKyLQiw== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.27,127,1787036400"; d="scan'208";a="312788615" Received: from igk-lkp-server01.igk.intel.com (HELO 04362d00df5a) ([10.211.93.152]) by orviesa001.jf.intel.com with ESMTP; 27 Sep 2026 13:28:58 -0700 Received: from kbuild by 04362d00df5a with local (Exim 4.98.2) (envelope-from ) id 1xAvUV-000000000gD-0tP4; Sun, 27 Sep 2026 20:28:55 +0000 Date: Sun, 27 Sep 2026 22:28:27 +0200 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: <202609272248.elcdGKal-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-randconfig-2000-20260927 (https://download.01.org/0day-ci/a= rchive/20260927/202609272248.elcdGKal-lkp@intel.com/config) compiler: clang version 24.0.0git (https://github.com/llvm/llvm-project 761= 5da10b75c57286a4032eac8bb43c1b8d2ba46) reproduce (this is a W=3D1 build): (https://download.01.org/0day-ci/archive= /20260927/202609272248.elcdGKal-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/202609272248.elcdGKal-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 502a590a170b3b Thomas Gleixner 2019-07-28 473 =20 08cd5e1de81584 Thomas Wei=C3=9Fschuh 2026-02-27 474 static ac1a42f4e4e296 Thomas Wei=C3=9Fschuh 2025-02-04 475 int __cvdso_clock_ge= tres_data(const struct vdso_time_data *vd, clockid_t clock, e876f0b69dc993 Christophe Leroy 2020-02-07 476 struct __kernel_= timespec *res) 502a590a170b3b Thomas Gleixner 2019-07-28 477 { 34f888e3405ace Thomas Wei=C3=9Fschuh 2025-07-01 478 bool ok; 00b26474c2f161 Vincenzo Frascino 2019-06-21 479 =20 34f888e3405ace Thomas Wei=C3=9Fschuh 2025-07-01 480 ok =3D __cvdso_clo= ck_getres_common(vd, clock, res); 34f888e3405ace Thomas Wei=C3=9Fschuh 2025-07-01 481 =20 34f888e3405ace Thomas Wei=C3=9Fschuh 2025-07-01 482 if (unlikely(!ok)) 00b26474c2f161 Vincenzo Frascino 2019-06-21 @483 return clock_getres_fal= lback(clock, res); 502a590a170b3b Thomas Gleixner 2019-07-28 484 return 0; 00b26474c2f161 Vincenzo Frascino 2019-06-21 485 } 00b26474c2f161 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