From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail3-relais-sop.national.inria.fr (mail3-relais-sop.national.inria.fr [192.134.164.104]) (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 CC88F14AAB for ; Sat, 20 Jan 2024 17:01:57 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.134.164.104 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1705770122; cv=none; b=lvN34BBHQ6bpVIGb7oqYj+TripAAbJgnXzgihIAa9ku7z56AFkm2AHy2Qghh3hG5vFKggnxCujssf9KYaSmM/yXKo4Lb/f8AvvXVA74iZONjt9S8DWvMpaOXIHmk4lK/vrfvwmFrHF2RONjMjMygDAQFDYLyktHi2qmuDikMxEQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1705770122; c=relaxed/simple; bh=iOKtxqkD+uVBgNmg41T8J8mZCNBvDaB3xqiyDIU9ZEA=; h=Date:From:To:cc:Subject:Message-ID:MIME-Version:Content-Type; b=ArJ1KAL1FzA9HGE/KNy6rBebItExEMP45zWYq8xEMtD+M+QFr1xLCU7KEBPEKTVVtOxANysZdrj6Sro2KCNxcaaqvtov1czTLFNiYUcb5hZ5O+tq4x6vWKfaIHimE2ol0aLq+sSo6XDFyA3aKz6Y7ki5Ps66JgvPQlKNcGH28Xk= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=inria.fr; spf=pass smtp.mailfrom=inria.fr; dkim=pass (1024-bit key) header.d=inria.fr header.i=@inria.fr header.b=cGpXFM98; arc=none smtp.client-ip=192.134.164.104 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=inria.fr Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=inria.fr Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=inria.fr header.i=@inria.fr header.b="cGpXFM98" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=inria.fr; s=dc; h=date:from:to:cc:subject:message-id:mime-version; bh=PcVDw+MAg0iXihFy7kIFofjy7tQqpJkW2nROprh3snQ=; b=cGpXFM989Nd+JoJA+xDXSj1VV/aEGoAWmr19ute3OnKMI2HYnOIhs1+/ XkhsYZ80BkCjQzcUCkk5tCF/iC76GHa2kp+2NobQToop/sB7RsYd+h35Z ouh2wZ8BfO6CVUMaVpAgmSMj4yLH6WGs6mDS5fDDDAVB28IIoH52D/+Sk g=; Authentication-Results: mail3-relais-sop.national.inria.fr; dkim=none (message not signed) header.i=none; spf=SoftFail smtp.mailfrom=julia.lawall@inria.fr; dmarc=fail (p=none dis=none) d=inria.fr X-IronPort-AV: E=Sophos;i="6.05,208,1701126000"; d="scan'208";a="77357534" Received: from 231.85.89.92.rev.sfr.net (HELO hadrien) ([92.89.85.231]) by mail3-relais-sop.national.inria.fr with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 20 Jan 2024 18:01:53 +0100 Date: Sat, 20 Jan 2024 18:01:53 +0100 (CET) From: Julia Lawall X-X-Sender: jll@hadrien To: Elaine Zhang , Heiko Stuebner , Sebastian Reichel cc: linux-kernel@vger.kernel.org, oe-kbuild-all@lists.linux.dev Subject: drivers/clk/rockchip/clk-pll.c:912:2-8: WARNING: do_div() does a 64-by-32 division, please consider using div64_u64 instead. (fwd) Message-ID: User-Agent: Alpine 2.22 (DEB 394 2020-01-19) Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII ---------- Forwarded message ---------- Date: Sun, 21 Jan 2024 00:55:25 +0800 From: kernel test robot To: oe-kbuild@lists.linux.dev Cc: lkp@intel.com, Julia Lawall Subject: drivers/clk/rockchip/clk-pll.c:912:2-8: WARNING: do_div() does a 64-by-32 division, please consider using div64_u64 instead. BCC: lkp@intel.com CC: oe-kbuild-all@lists.linux.dev CC: linux-kernel@vger.kernel.org TO: Elaine Zhang CC: Heiko Stuebner CC: Sebastian Reichel tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 9d64bf433c53cab2f48a3fff7a1f2a696bc5229a commit: 8f6594494b1cb0ad14493795b436413cfe64a0f8 clk: rockchip: add pll type for RK3588 date: 1 year, 2 months ago :::::: branch date: 18 hours ago :::::: commit date: 1 year, 2 months ago config: arm-randconfig-r062-20240117 (https://download.01.org/0day-ci/archive/20240121/202401210007.174n0NM0-lkp@intel.com/config) compiler: clang version 18.0.0git (https://github.com/llvm/llvm-project 9bde5becb44ea071f5e1fa1f5d4071dc8788b18c) 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 | Reported-by: Julia Lawall | Closes: https://lore.kernel.org/r/202401210007.174n0NM0-lkp@intel.com/ cocci warnings: (new ones prefixed by >>) >> drivers/clk/rockchip/clk-pll.c:912:2-8: WARNING: do_div() does a 64-by-32 division, please consider using div64_u64 instead. vim +912 drivers/clk/rockchip/clk-pll.c 8f6594494b1cb0 Elaine Zhang 2022-10-18 895 8f6594494b1cb0 Elaine Zhang 2022-10-18 896 static unsigned long rockchip_rk3588_pll_recalc_rate(struct clk_hw *hw, unsigned long prate) 8f6594494b1cb0 Elaine Zhang 2022-10-18 897 { 8f6594494b1cb0 Elaine Zhang 2022-10-18 898 struct rockchip_clk_pll *pll = to_rockchip_clk_pll(hw); 8f6594494b1cb0 Elaine Zhang 2022-10-18 899 struct rockchip_pll_rate_table cur; 8f6594494b1cb0 Elaine Zhang 2022-10-18 900 u64 rate64 = prate, postdiv; 8f6594494b1cb0 Elaine Zhang 2022-10-18 901 8f6594494b1cb0 Elaine Zhang 2022-10-18 902 rockchip_rk3588_pll_get_params(pll, &cur); 8f6594494b1cb0 Elaine Zhang 2022-10-18 903 8f6594494b1cb0 Elaine Zhang 2022-10-18 904 rate64 *= cur.m; 8f6594494b1cb0 Elaine Zhang 2022-10-18 905 do_div(rate64, cur.p); 8f6594494b1cb0 Elaine Zhang 2022-10-18 906 8f6594494b1cb0 Elaine Zhang 2022-10-18 907 if (cur.k) { 8f6594494b1cb0 Elaine Zhang 2022-10-18 908 /* fractional mode */ 8f6594494b1cb0 Elaine Zhang 2022-10-18 909 u64 frac_rate64 = prate * cur.k; 8f6594494b1cb0 Elaine Zhang 2022-10-18 910 8f6594494b1cb0 Elaine Zhang 2022-10-18 911 postdiv = cur.p * 65535; 8f6594494b1cb0 Elaine Zhang 2022-10-18 @912 do_div(frac_rate64, postdiv); 8f6594494b1cb0 Elaine Zhang 2022-10-18 913 rate64 += frac_rate64; 8f6594494b1cb0 Elaine Zhang 2022-10-18 914 } 8f6594494b1cb0 Elaine Zhang 2022-10-18 915 rate64 = rate64 >> cur.s; 8f6594494b1cb0 Elaine Zhang 2022-10-18 916 8f6594494b1cb0 Elaine Zhang 2022-10-18 917 return (unsigned long)rate64; 8f6594494b1cb0 Elaine Zhang 2022-10-18 918 } 8f6594494b1cb0 Elaine Zhang 2022-10-18 919 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki