From patchwork Mon Mar 29 07:57:15 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg Kroah-Hartman X-Patchwork-Id: 412506 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-19.0 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 48779C433DB for ; Mon, 29 Mar 2021 08:36:20 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 207D4619B4 for ; Mon, 29 Mar 2021 08:36:20 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234429AbhC2Ifs (ORCPT ); Mon, 29 Mar 2021 04:35:48 -0400 Received: from mail.kernel.org ([198.145.29.99]:55110 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233848AbhC2IeT (ORCPT ); Mon, 29 Mar 2021 04:34:19 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id DAD7861581; Mon, 29 Mar 2021 08:34:16 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1617006857; bh=HXxFCLh2hjF3+l+5onHlVjICg7eGsqXjours8iywO+o=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=zZmRW8qEwvGocTAqur8kBjNXqPEtHnoH/D56/O6wrG5Nz6dh6edRDvrRaiZ6t5YpW 3dCdDi5aNZWtld5+GjTCR23P5ALO2hN0O/jhjRI5FeEiX2aAatKfdo+bNsMuv6MGWq jajfbXDzul7E6dRGmmmn2COfoB7bdREqGre13UmY= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Parav Pandit , Maor Dickman , Saeed Mahameed , Sasha Levin Subject: [PATCH 5.11 119/254] net/mlx5e: E-switch, Fix rate calculation division Date: Mon, 29 Mar 2021 09:57:15 +0200 Message-Id: <20210329075637.128614467@linuxfoundation.org> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210329075633.135869143@linuxfoundation.org> References: <20210329075633.135869143@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Parav Pandit [ Upstream commit 8b90d897823b28a51811931f3bdc79f8df79407e ] do_div() returns reminder, while cited patch wanted to use quotient. Fix it by using quotient. Fixes: 0e22bfb7c046 ("net/mlx5e: E-switch, Fix rate calculation for overflow") Signed-off-by: Parav Pandit Signed-off-by: Maor Dickman Signed-off-by: Saeed Mahameed Signed-off-by: Sasha Levin --- drivers/net/ethernet/mellanox/mlx5/core/en_tc.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c b/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c index 717fbaa6ce73..e9b7da05f14a 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c @@ -5040,7 +5040,8 @@ static int apply_police_params(struct mlx5e_priv *priv, u64 rate, */ if (rate) { rate = (rate * BITS_PER_BYTE) + 500000; - rate_mbps = max_t(u64, do_div(rate, 1000000), 1); + do_div(rate, 1000000); + rate_mbps = max_t(u32, rate, 1); } err = mlx5_esw_modify_vport_rate(esw, vport_num, rate_mbps);