From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.15]) (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 51FDF15AD9C for ; Mon, 9 Dec 2024 05:09:48 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.175.65.15 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1733720991; cv=none; b=FtJ5LjicCD0TzaQuJ8jy4Qe+oK2S60BAzSxrPauFq9phoMRK3P687oBebKkn2wRn+NqU3QjTUTOCSeblFHr/NUNSq11keTupt8uEpMI/OtWbCLtpAbrCUg0a0kfjjhluwBrHyLLMLwKV//HOJK6M6SKImfm/ysGulEeOwpnmyLY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1733720991; c=relaxed/simple; bh=ew/8DOla6GGK2y5JGIrQUW23Ny327qc6PfkECHJxMq0=; h=Date:From:To:Cc:Subject:Message-ID:MIME-Version:Content-Type: Content-Disposition; b=eI4A9zc1j54Kb7KQmmT2+Qr7xQvysIoxTBWxabtvPrUd9peysQmnpO1WJC8Kaptk3KzpHOq08/tYxfVVQfgqalbH4gxodx07jsc8U9sYAk/ZEHn+O7Npj3sTDLuRRoe1T0/RnGVZvMYfgBoRFCczZKvUBqEd7M8l65QIIZoxrLU= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com; spf=pass smtp.mailfrom=intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=O2CqPfRb; arc=none smtp.client-ip=198.175.65.15 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="O2CqPfRb" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1733720988; x=1765256988; h=date:from:to:cc:subject:message-id:mime-version; bh=ew/8DOla6GGK2y5JGIrQUW23Ny327qc6PfkECHJxMq0=; b=O2CqPfRbWj3JQCzE3Hq6fycj/U7q0AsO8mEeqNUuDP0RTebGpOiVDWZb eg4pGd99UWBp0d9UySzCGyC64E90Lv1hTcw3uxYWDPgxFzWziJ6LvMuZR zJcwl+0I8Q6OHwvbtv6E0lLvsNl1h/wLLfCGBWX5ojzlNp7TlUWZFRMQ2 cSrmGhNDp/xmRYTqRF6TsuAjtrf/bRuViGQUHhUGUcOE7kqhEcPw0YkHS BKuHstle03CfzpOF1DV5H6WfZlFMOpG790Sq/+2p0XEsgM2aQZeEtjQGO qdVJf3GHDccPh5eYq8wZbDHrQ/N7VgknUkSCoNGZwmplUOOYOGYcQ7vha A==; X-CSE-ConnectionGUID: c9hrURGcS+CkPC548bV6KQ== X-CSE-MsgGUID: NrijQaGjR36rgIZH7dN4Pw== X-IronPort-AV: E=McAfee;i="6700,10204,11280"; a="37683995" X-IronPort-AV: E=Sophos;i="6.12,218,1728975600"; d="scan'208";a="37683995" Received: from orviesa002.jf.intel.com ([10.64.159.142]) by orvoesa107.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 08 Dec 2024 21:09:47 -0800 X-CSE-ConnectionGUID: hsrn04cxTg2W/Jv5KgTNAA== X-CSE-MsgGUID: 4fJfqzIHQCacDo7k2gySUA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.12,218,1728975600"; d="scan'208";a="125806864" Received: from lkp-server01.sh.intel.com (HELO 82a3f569d0cb) ([10.239.97.150]) by orviesa002.jf.intel.com with ESMTP; 08 Dec 2024 21:09:46 -0800 Received: from kbuild by 82a3f569d0cb with local (Exim 4.96) (envelope-from ) id 1tKW1e-0003yX-2H; Mon, 09 Dec 2024 05:09:42 +0000 Date: Mon, 9 Dec 2024 13:08:47 +0800 From: kernel test robot To: Adam Ford Cc: oe-kbuild-all@lists.linux.dev, linux-kernel@vger.kernel.org, Vinod Koul , Dominique Martinet , Frieder Schrempf Subject: drivers/phy/freescale/phy-fsl-samsung-hdmi.c:472:3-9: WARNING: do_div() does a 64-by-32 division, please consider using div64_ul instead. Message-ID: <202412091243.fSObwwPi-lkp@intel.com> 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 Content-Disposition: inline tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: fac04efc5c793dccbd07e2d59af9f90b7fc0dca4 commit: 1951dbb41d1dff7c135eed4fa1a6330df6971549 phy: freescale: fsl-samsung-hdmi: Support dynamic integer date: 8 weeks ago config: alpha-randconfig-r064-20241209 (https://download.01.org/0day-ci/archive/20241209/202412091243.fSObwwPi-lkp@intel.com/config) compiler: alpha-linux-gcc (GCC) 14.2.0 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/202412091243.fSObwwPi-lkp@intel.com/ cocci warnings: (new ones prefixed by >>) >> drivers/phy/freescale/phy-fsl-samsung-hdmi.c:472:3-9: WARNING: do_div() does a 64-by-32 division, please consider using div64_ul instead. vim +472 drivers/phy/freescale/phy-fsl-samsung-hdmi.c 435 436 static unsigned long fsl_samsung_hdmi_phy_find_pms(unsigned long fout, u8 *p, u16 *m, u8 *s) 437 { 438 unsigned long best_freq = 0; 439 u32 min_delta = 0xffffffff; 440 u8 _p, best_p; 441 u16 _m, best_m; 442 u8 _s, best_s; 443 444 /* 445 * Figure 13-78 of the reference manual states the PLL should be TMDS x 5 446 * while the TMDS_CLKO should be the PLL / 5. So to calculate the PLL, 447 * take the pix clock x 5, then return the value of the PLL / 5. 448 */ 449 fout *= 5; 450 451 /* The ref manual states the values of 'P' range from 1 to 11 */ 452 for (_p = 1; _p <= 11; ++_p) { 453 for (_s = 1; _s <= 16; ++_s) { 454 u64 tmp; 455 u32 delta; 456 457 /* s must be one or even */ 458 if (_s > 1 && (_s & 0x01) == 1) 459 _s++; 460 461 /* _s cannot be 14 per the TRM */ 462 if (_s == 14) 463 continue; 464 465 /* 466 * TODO: Ref Manual doesn't state the range of _m 467 * so this should be further refined if possible. 468 * This range was set based on the original values 469 * in the lookup table 470 */ 471 tmp = (u64)fout * (_p * _s); > 472 do_div(tmp, 24 * MHZ); 473 _m = tmp; 474 if (_m < 0x30 || _m > 0x7b) 475 continue; 476 477 /* 478 * Rev 2 of the Ref Manual states the 479 * VCO can range between 750MHz and 480 * 3GHz. The VCO is assumed to be 481 * Fvco = (M * f_ref) / P, 482 * where f_ref is 24MHz. 483 */ 484 tmp = (u64)_m * 24 * MHZ; 485 do_div(tmp, _p); 486 if (tmp < 750 * MHZ || 487 tmp > 3000 * MHZ) 488 continue; 489 490 /* Final frequency after post-divider */ 491 do_div(tmp, _s); 492 493 delta = abs(fout - tmp); 494 if (delta < min_delta) { 495 best_p = _p; 496 best_s = _s; 497 best_m = _m; 498 min_delta = delta; 499 best_freq = tmp; 500 } 501 } 502 } 503 504 if (best_freq) { 505 *p = best_p; 506 *m = best_m; 507 *s = best_s; 508 } 509 510 return best_freq / 5; 511 } 512 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki