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X-CSE-ConnectionGUID: UamifEo6SdO5zUhfm4hH8Q== X-CSE-MsgGUID: 6nm6SkdIQ9qgZ/1PBy8fuQ== X-IronPort-AV: E=McAfee;i="6800,10657,11775"; a="82559766" X-IronPort-AV: E=Sophos;i="6.23,214,1770624000"; d="scan'208";a="82559766" Received: from fmviesa004.fm.intel.com ([10.60.135.144]) by fmvoesa106.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 03 May 2026 10:47:31 -0700 X-CSE-ConnectionGUID: nsYCHrZ7Rwm6+oc4R06MfA== X-CSE-MsgGUID: 7K+m7mIpQRW+qqe5fUZ9dA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.23,214,1770624000"; d="scan'208";a="237102347" Received: from lkp-server01.sh.intel.com (HELO 781826d00641) ([10.239.97.150]) by fmviesa004.fm.intel.com with ESMTP; 03 May 2026 10:47:30 -0700 Received: from kbuild by 781826d00641 with local (Exim 4.98.2) (envelope-from ) id 1wJauR-000000002pb-2QMx; Sun, 03 May 2026 17:47:19 +0000 Date: Mon, 04 May 2026 01:45:48 +0800 From: kernel test robot To: oe-kbuild@lists.linux.dev Cc: lkp@intel.com Subject: drivers/ptp/ptp_vmclock.c:392:24: warning: unused variable 'st' Message-ID: <202605040151.8XwAzkix-lkp@intel.com> User-Agent: s-nail v14.9.25 Precedence: bulk X-Mailing-List: oe-kbuild@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: :::::: :::::: Manual check reason: "bisect to a FBC not belonging to original linux-review patches: branch: linux-review/Arthur-Kiyanovski/ptp-Add-ioctls-for-PHC-timestamps-with-quality-attributes/20260501-120618, commit: df313359b943b68d54c834330766e4f1d3afade0" :::::: BCC: lkp@intel.com CC: oe-kbuild-all@lists.linux.dev TO: Arthur Kiyanovski CC: 0day robot tree: https://github.com/intel-lab-lkp/linux/commits/Arthur-Kiyanovski/ptp-Add-ioctls-for-PHC-timestamps-with-quality-attributes/20260501-120618 head: 02bdf82208619595607dd1a4004fa7b729f7b43a commit: df313359b943b68d54c834330766e4f1d3afade0 ptp: ptp_vmclock: Implement attributes ioctls date: 3 days ago :::::: branch date: 3 days ago :::::: commit date: 3 days ago config: arm64-randconfig-001-20260503 (https://download.01.org/0day-ci/archive/20260504/202605040151.8XwAzkix-lkp@intel.com/config) compiler: aarch64-linux-gcc (GCC) 8.5.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260504/202605040151.8XwAzkix-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 | Closes: https://lore.kernel.org/r/202605040151.8XwAzkix-lkp@intel.com/ All warnings (new ones prefixed by >>): drivers/ptp/ptp_vmclock.c: In function 'ptp_vmclock_do_getcrosststamp': >> drivers/ptp/ptp_vmclock.c:392:24: warning: unused variable 'st' [-Wunused-variable] struct vmclock_state *st = vctx->st; ^~ vim +/st +392 drivers/ptp/ptp_vmclock.c 20503272422693d David Woodhouse 2024-10-06 388 df313359b943b68 Arthur Kiyanovski 2026-04-30 389 static int ptp_vmclock_do_getcrosststamp(struct vmclock_crosststamp_ctx *vctx, 20503272422693d David Woodhouse 2024-10-06 390 struct system_device_crosststamp *xtstamp) 20503272422693d David Woodhouse 2024-10-06 391 { df313359b943b68 Arthur Kiyanovski 2026-04-30 @392 struct vmclock_state *st = vctx->st; df313359b943b68 Arthur Kiyanovski 2026-04-30 393 int ret = get_device_system_crosststamp(ptp_vmclock_get_time_fn, vctx, 20503272422693d David Woodhouse 2024-10-06 394 NULL, xtstamp); 20503272422693d David Woodhouse 2024-10-06 395 #ifdef SUPPORT_KVMCLOCK 20503272422693d David Woodhouse 2024-10-06 396 /* 20503272422693d David Woodhouse 2024-10-06 397 * On x86, the KVM clock may be used for the system time. We can 20503272422693d David Woodhouse 2024-10-06 398 * actually convert a TSC reading to that, and return a paired 20503272422693d David Woodhouse 2024-10-06 399 * timestamp that get_device_system_crosststamp() *can* handle. 20503272422693d David Woodhouse 2024-10-06 400 */ 20503272422693d David Woodhouse 2024-10-06 401 if (ret == -ENODEV) { 20503272422693d David Woodhouse 2024-10-06 402 struct system_time_snapshot systime_snapshot; 20503272422693d David Woodhouse 2024-10-06 403 20503272422693d David Woodhouse 2024-10-06 404 ktime_get_snapshot(&systime_snapshot); 20503272422693d David Woodhouse 2024-10-06 405 20503272422693d David Woodhouse 2024-10-06 406 if (systime_snapshot.cs_id == CSID_X86_TSC || 20503272422693d David Woodhouse 2024-10-06 407 systime_snapshot.cs_id == CSID_X86_KVM_CLK) { 20503272422693d David Woodhouse 2024-10-06 408 WRITE_ONCE(st->sys_cs_id, systime_snapshot.cs_id); 20503272422693d David Woodhouse 2024-10-06 409 ret = get_device_system_crosststamp(ptp_vmclock_get_time_fn, df313359b943b68 Arthur Kiyanovski 2026-04-30 410 vctx, NULL, xtstamp); 20503272422693d David Woodhouse 2024-10-06 411 } 20503272422693d David Woodhouse 2024-10-06 412 } 20503272422693d David Woodhouse 2024-10-06 413 #endif 20503272422693d David Woodhouse 2024-10-06 414 return ret; 20503272422693d David Woodhouse 2024-10-06 415 } 20503272422693d David Woodhouse 2024-10-06 416 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki