From patchwork Wed Mar 10 19:03:42 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Saeed Mahameed X-Patchwork-Id: 12129123 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=-19.2 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,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 4E1A7C28D13 for ; Wed, 10 Mar 2021 19:04:52 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 37B1F64FDC for ; Wed, 10 Mar 2021 19:04:52 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233852AbhCJTEY (ORCPT ); Wed, 10 Mar 2021 14:04:24 -0500 Received: from mail.kernel.org ([198.145.29.99]:44428 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233770AbhCJTED (ORCPT ); Wed, 10 Mar 2021 14:04:03 -0500 Received: by mail.kernel.org (Postfix) with ESMTPSA id C423664FCD; Wed, 10 Mar 2021 19:04:02 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1615403043; bh=AsCp7Q3ASY5fQ3uCys1QXS4icwVJ/QYriXknYc6Ii6E=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=t89z4xbLWjvMJnBWTqHlX+pJQt/RXHEdPi0OVvakwMfKTPENnAMkrrZEbnDbrMINP mNs4hmzRvZo8YeJ54JDS50vkawFvCy7AnhuJSwCmGliPHVxfcEDmw8WC9NUrcV5lZN kG151lNtqg+SrJrBZeGMaeEdVc8UjrEZtPVEITS9qb2mc7yKVAZLszqiHZvrwgUI7+ g213IH4N7sx528oLl1h68rm6WwJzmWUywPqDm8NWoH6smoSRLIYpevow3syJesAOYj MbhYAUXqNul+MZmFjMIiPTsSvbos0Dz+09hC/bKKJJaekrbDttNgpedbeK+z2nKQIc VorBx632U2Glg== From: Saeed Mahameed To: "David S. Miller" , Jakub Kicinski Cc: netdev@vger.kernel.org, linux-rdma@vger.kernel.org, Yevgeny Kliteynik , Dan Carpenter , Alex Vesker , Saeed Mahameed Subject: [net 18/18] net/mlx5: DR, Fix potential shift wrapping of 32-bit value in STEv1 getter Date: Wed, 10 Mar 2021 11:03:42 -0800 Message-Id: <20210310190342.238957-19-saeed@kernel.org> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20210310190342.238957-1-saeed@kernel.org> References: <20210310190342.238957-1-saeed@kernel.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-rdma@vger.kernel.org From: Yevgeny Kliteynik Fix 32-bit variable shift wrapping in dr_ste_v1_get_miss_addr. Fixes: a6098129c781 ("net/mlx5: DR, Add STEv1 setters and getters") Reported-by: Dan Carpenter Signed-off-by: Yevgeny Kliteynik Reviewed-by: Alex Vesker Signed-off-by: Saeed Mahameed --- drivers/net/ethernet/mellanox/mlx5/core/steering/dr_ste_v1.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_ste_v1.c b/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_ste_v1.c index 4088d6e51508..9143ec326ebf 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_ste_v1.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_ste_v1.c @@ -264,8 +264,8 @@ static void dr_ste_v1_set_miss_addr(u8 *hw_ste_p, u64 miss_addr) static u64 dr_ste_v1_get_miss_addr(u8 *hw_ste_p) { u64 index = - (MLX5_GET(ste_match_bwc_v1, hw_ste_p, miss_address_31_6) | - MLX5_GET(ste_match_bwc_v1, hw_ste_p, miss_address_39_32) << 26); + ((u64)MLX5_GET(ste_match_bwc_v1, hw_ste_p, miss_address_31_6) | + ((u64)MLX5_GET(ste_match_bwc_v1, hw_ste_p, miss_address_39_32)) << 26); return index << 6; }