From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [192.55.52.88]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 6450D387; Sat, 26 Aug 2023 01:33:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1693013585; x=1724549585; h=date:from:to:cc:subject:message-id:mime-version; bh=0xfi99d+MSBvaAIRFTxrUPN86pncS8duO07e0eIUNu4=; b=RMmnUKlnruv2jxIdk59OyT5NNDUyR+xRjR2wzul1MF3JStR1Mdbu1JUV UQGO7dhGpjzzMq7TSMBIBliNvIz7uYDUVLncgKev4shGK3FF9Bi2pyabF 3n9cPkPucyKygiCvU+FvFSD0xucRkpcgv4+D2YvkOrsFxP8lSqSPV5dzE QZgkQqsaRO6T1viO2QE/vF3yUsOEs0XAnSxhmeWxuFIA+YJtEqlbDiVVn jfgmjFuEsJJRCh/rOPSqkgCcemRPNuj2ZkYyFx0eHyUk3MJmJypl02pat XIVxWtqrB/Btb0rXMPaceGukimXGe8w+TW9OH7e1Bfrx5vVK90oOeVQ1N A==; X-IronPort-AV: E=McAfee;i="6600,9927,10813"; a="405831043" X-IronPort-AV: E=Sophos;i="6.02,202,1688454000"; d="scan'208";a="405831043" Received: from orsmga008.jf.intel.com ([10.7.209.65]) by fmsmga101.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 25 Aug 2023 18:33:02 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10813"; a="767095322" X-IronPort-AV: E=Sophos;i="6.02,202,1688454000"; d="scan'208";a="767095322" Received: from lkp-server02.sh.intel.com (HELO daf8bb0a381d) ([10.239.97.151]) by orsmga008.jf.intel.com with ESMTP; 25 Aug 2023 18:33:00 -0700 Received: from kbuild by daf8bb0a381d with local (Exim 4.96) (envelope-from ) id 1qZiAd-0004Dp-17; Sat, 26 Aug 2023 01:32:59 +0000 Date: Sat, 26 Aug 2023 09:32:05 +0800 From: kernel test robot To: John Ogness Cc: llvm@lists.linux.dev, oe-kbuild-all@lists.linux.dev, Sebastian Andrzej Siewior Subject: [rt-devel:linux-6.5.y-rt-rebase 49/87] kernel/printk/printk.c:3361:6: warning: no previous prototype for function 'console_bkl_kthread_create' Message-ID: <202308260912.i1Fadnhp-lkp@intel.com> Precedence: bulk X-Mailing-List: llvm@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline tree: https://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-6.5.y-rt-rebase head: c328ba8602906864849212de9927db3542a6d9f1 commit: ebf7d7c2929535b0203001866e5d1f816bc46c6f [49/87] printk: Add threaded printing support for BKL consoles. config: powerpc64-randconfig-r022-20230826 (https://download.01.org/0day-ci/archive/20230826/202308260912.i1Fadnhp-lkp@intel.com/config) compiler: clang version 17.0.0 (https://github.com/llvm/llvm-project.git 4a5ac14ee968ff0ad5d2cc1ffa0299048db4c88a) reproduce: (https://download.01.org/0day-ci/archive/20230826/202308260912.i1Fadnhp-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/oe-kbuild-all/202308260912.i1Fadnhp-lkp@intel.com/ All warnings (new ones prefixed by >>): >> kernel/printk/printk.c:3361:6: warning: no previous prototype for function 'console_bkl_kthread_create' [-Wmissing-prototypes] 3361 | void console_bkl_kthread_create(void) | ^ kernel/printk/printk.c:3361:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 3361 | void console_bkl_kthread_create(void) | ^ | static 1 warning generated. vim +/console_bkl_kthread_create +3361 kernel/printk/printk.c 3360 > 3361 void console_bkl_kthread_create(void) 3362 { 3363 struct task_struct *kt; 3364 struct console *c; 3365 3366 lockdep_assert_held(&console_mutex); 3367 3368 if (!IS_ENABLED(CONFIG_PREEMPT_RT)) 3369 return; 3370 3371 if (!printk_threads_enabled || console_bkl_kthread) 3372 return; 3373 3374 for_each_console(c) { 3375 if (c->flags & CON_BOOT) 3376 return; 3377 } 3378 3379 kt = kthread_run(console_bkl_kthread_func, NULL, "pr/bkl"); 3380 if (IS_ERR(kt)) { 3381 pr_err("unable to start BKL printing thread\n"); 3382 return; 3383 } 3384 3385 console_bkl_kthread = kt; 3386 3387 /* 3388 * It is important that console printing threads are scheduled 3389 * shortly after a printk call and with generous runtime budgets. 3390 */ 3391 sched_set_normal(console_bkl_kthread, -20); 3392 } 3393 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki