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X-CSE-ConnectionGUID: GnXK/OGVQmGDR+bd8dKLnw== X-CSE-MsgGUID: Fl8ILu9FS5CFHC47ZFUCgQ== X-IronPort-AV: E=McAfee;i="6800,10657,11824"; a="100417100" X-IronPort-AV: E=Sophos;i="6.24,218,1774335600"; d="scan'208";a="100417100" Received: from orviesa009.jf.intel.com ([10.64.159.149]) by fmvoesa102.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 22 Jun 2026 06:54:07 -0700 X-CSE-ConnectionGUID: xDpnIoJNSPi/8R9xAg8vtQ== X-CSE-MsgGUID: wsgE5H9NQ9yBs9oPyHjCfw== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.24,218,1774335600"; d="scan'208";a="249344684" Received: from lkp-server02.sh.intel.com (HELO ea128546eb3d) ([10.239.97.151]) by orviesa009.jf.intel.com with ESMTP; 22 Jun 2026 06:54:05 -0700 Received: from kbuild by ea128546eb3d with local (Exim 4.98.2) (envelope-from ) id 1wbf6A-000000001Ge-09mL; Mon, 22 Jun 2026 13:54:02 +0000 Date: Mon, 22 Jun 2026 21:53:46 +0800 From: kernel test robot To: Babis Chalios Cc: oe-kbuild-all@lists.linux.dev, linux-kernel@vger.kernel.org, Jakub Kicinski , David Woodhouse , Takahiro Itazuri Subject: drivers/ptp/ptp_vmclock.c:445:24: sparse: sparse: incorrect type in return expression (different base types) Message-ID: <202606222129.M1YS26K2-lkp@intel.com> User-Agent: s-nail v14.9.25 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: ef0c9f75a19532d7675384708fc8621e10850104 commit: 3b1526ddb25452385b52f2588b655f524a57070b ptp: vmclock: support device notifications date: 5 months ago config: x86_64-randconfig-123-20260622 (https://download.01.org/0day-ci/archive/20260622/202606222129.M1YS26K2-lkp@intel.com/config) compiler: clang version 22.1.3 (https://github.com/llvm/llvm-project e9846648fd6183ee6d8cbdb4502213fcf902a211) sparse: v0.6.5-rc1 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260622/202606222129.M1YS26K2-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 | Fixes: 3b1526ddb254 ("ptp: vmclock: support device notifications") | Reported-by: kernel test robot | Closes: https://lore.kernel.org/oe-kbuild-all/202606222129.M1YS26K2-lkp@intel.com/ sparse warnings: (new ones prefixed by >>) >> drivers/ptp/ptp_vmclock.c:445:24: sparse: sparse: incorrect type in return expression (different base types) @@ expected restricted __poll_t @@ got int @@ drivers/ptp/ptp_vmclock.c:445:24: sparse: expected restricted __poll_t drivers/ptp/ptp_vmclock.c:445:24: sparse: got int drivers/ptp/ptp_vmclock.c:451:31: sparse: sparse: incorrect type in return expression (different base types) @@ expected restricted __poll_t @@ got int @@ drivers/ptp/ptp_vmclock.c:451:31: sparse: expected restricted __poll_t drivers/ptp/ptp_vmclock.c:451:31: sparse: got int vim +445 drivers/ptp/ptp_vmclock.c 433 434 static __poll_t vmclock_miscdev_poll(struct file *fp, poll_table *wait) 435 { 436 struct vmclock_file_state *fst = fp->private_data; 437 struct vmclock_state *st = fst->st; 438 uint32_t seq; 439 440 /* 441 * Hypervisor will not send us any notifications, so fail immediately 442 * to avoid having caller sleeping for ever. 443 */ 444 if (!(le64_to_cpu(st->clk->flags) & VMCLOCK_FLAG_NOTIFICATION_PRESENT)) > 445 return POLLHUP; 446 447 poll_wait(fp, &st->disrupt_wait, wait); 448 449 seq = le32_to_cpu(st->clk->seq_count); 450 if (atomic_read(&fst->seq) != seq) 451 return POLLIN | POLLRDNORM; 452 453 return 0; 454 } 455 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki