From patchwork Thu Nov 4 13:52:11 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Karol Kolacinski X-Patchwork-Id: 1550987 X-Patchwork-Delegate: anthony.l.nguyen@intel.com Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=osuosl.org (client-ip=2605:bc80:3010::136; helo=smtp3.osuosl.org; envelope-from=intel-wired-lan-bounces@osuosl.org; receiver=) Received: from smtp3.osuosl.org (smtp3.osuosl.org [IPv6:2605:bc80:3010::136]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by bilbo.ozlabs.org (Postfix) with ESMTPS id 4HlQ7b58X7z9sPf for ; Fri, 5 Nov 2021 00:52:43 +1100 (AEDT) Received: from localhost (localhost [127.0.0.1]) by smtp3.osuosl.org (Postfix) with ESMTP id E857B6070F; Thu, 4 Nov 2021 13:52:40 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from smtp3.osuosl.org ([127.0.0.1]) by localhost (smtp3.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id ePbHI39BD_6B; Thu, 4 Nov 2021 13:52:39 +0000 (UTC) Received: from ash.osuosl.org (ash.osuosl.org [140.211.166.34]) by smtp3.osuosl.org (Postfix) with ESMTP id B208C6088B; Thu, 4 Nov 2021 13:52:39 +0000 (UTC) X-Original-To: intel-wired-lan@lists.osuosl.org Delivered-To: intel-wired-lan@lists.osuosl.org Received: from smtp2.osuosl.org (smtp2.osuosl.org [140.211.166.133]) by ash.osuosl.org (Postfix) with ESMTP id 7C0CC1BF3D2 for ; Thu, 4 Nov 2021 13:52:38 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by smtp2.osuosl.org (Postfix) with ESMTP id 7605A403B3 for ; Thu, 4 Nov 2021 13:52:38 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from smtp2.osuosl.org ([127.0.0.1]) by localhost (smtp2.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id mbwOJG_CdEbv for ; Thu, 4 Nov 2021 13:52:36 +0000 (UTC) X-Greylist: domain auto-whitelisted by SQLgrey-1.8.0 Received: from mga07.intel.com (mga07.intel.com [134.134.136.100]) by smtp2.osuosl.org (Postfix) with ESMTPS id 618F940001 for ; Thu, 4 Nov 2021 13:52:36 +0000 (UTC) X-IronPort-AV: E=McAfee;i="6200,9189,10157"; a="295150428" X-IronPort-AV: E=Sophos;i="5.87,208,1631602800"; d="scan'208";a="295150428" Received: from orsmga008.jf.intel.com ([10.7.209.65]) by orsmga105.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 04 Nov 2021 06:52:35 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.87,208,1631602800"; d="scan'208";a="501546359" Received: from kkolacin-desk1.igk.intel.com ([172.22.229.172]) by orsmga008.jf.intel.com with ESMTP; 04 Nov 2021 06:52:34 -0700 From: Karol Kolacinski To: intel-wired-lan@lists.osuosl.org Date: Thu, 4 Nov 2021 14:52:11 +0100 Message-Id: <20211104135211.21315-1-karol.kolacinski@intel.com> X-Mailer: git-send-email 2.32.0 MIME-Version: 1.0 Organization: Intel Technology Poland sp. z o.o. - ul. Slowackiego 173, 80-298 Gdansk - KRS 101882 - NIP 957-07-52-316 Subject: [Intel-wired-lan] [PATCH intel-next] ice: Use div64_u64 instead of div_u64 in adjfine X-BeenThere: intel-wired-lan@osuosl.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel Wired Ethernet Linux Kernel Driver Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Karol Kolacinski Errors-To: intel-wired-lan-bounces@osuosl.org Sender: "Intel-wired-lan" Change the division in ice_ptp_adjfine from div_u64 to div64_u64. div_u64 is used when the divisor is 32 bit but in this case incval is 64 bit and it caused incorrect calculations and incval adjustments. Signed-off-by: Karol Kolacinski Tested-by: Gurucharan G (A Contingent worker at Intel) --- drivers/net/ethernet/intel/ice/ice_ptp.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/ethernet/intel/ice/ice_ptp.c b/drivers/net/ethernet/intel/ice/ice_ptp.c index 2b3b2060b504..2149595cc632 100644 --- a/drivers/net/ethernet/intel/ice/ice_ptp.c +++ b/drivers/net/ethernet/intel/ice/ice_ptp.c @@ -1104,7 +1104,7 @@ static int ice_ptp_adjfine(struct ptp_clock_info *info, long scaled_ppm) scaled_ppm = -scaled_ppm; } - while ((u64)scaled_ppm > div_u64(U64_MAX, incval)) { + while ((u64)scaled_ppm > div64_u64(U64_MAX, incval)) { /* handle overflow by scaling down the scaled_ppm and * the divisor, losing some precision */