From patchwork Sun Mar 21 21:05:49 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vladimir Oltean X-Patchwork-Id: 12153337 X-Patchwork-Delegate: kuba@kernel.org 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=-15.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, 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 8074EC433E0 for ; Sun, 21 Mar 2021 21:07:05 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 542036194D for ; Sun, 21 Mar 2021 21:07:05 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231156AbhCUVG1 (ORCPT ); Sun, 21 Mar 2021 17:06:27 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:50114 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230071AbhCUVGH (ORCPT ); Sun, 21 Mar 2021 17:06:07 -0400 Received: from mail-ed1-x532.google.com (mail-ed1-x532.google.com [IPv6:2a00:1450:4864:20::532]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A8FF3C061574 for ; Sun, 21 Mar 2021 14:06:06 -0700 (PDT) Received: by mail-ed1-x532.google.com with SMTP id e7so16918825edu.10 for ; Sun, 21 Mar 2021 14:06:06 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=bTmObEIche8eOF7eSYOH3clbEkRgDIf7Lfgw4Jf4i94=; b=Lhz9AJsb1bkT8VSNE583Pu8IjD6/8OpQvFrxZkthC9SmpQDjmY38eNJ56JwkGDHn3I 0/cBQbTsrImLiPPMXoMQXZxhC+UuVV1E6Q2Nhk809rhY6Vj5Bmx90MNOfOoqJsUTuUGX Mmcn7owFFFCVGA4f7p6iNwqPXqridhY0Sphe28fVelLFZ0BXhwaxUQVzbezKZrUKLws0 lVNPuQqesE7E4HEt1wBqAVH3jKilTmmGTFFKBfcNmq7DhApigB/HPNcaO1ScrG/9DB6e h78myZp820XCFHmvNJwRE22qCDHggPTh92XGVxJISkmpKI7bl91p0GGlPANBAiBQ8zoP +6bQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=bTmObEIche8eOF7eSYOH3clbEkRgDIf7Lfgw4Jf4i94=; b=kfugTAfXgkPa0usjxSf5XSYsrLNfnWLAhsbxLxAqNikvmsJyCL4QF5cuOJzA+uJTDS USgwmx6idNpBFrbbTkdMxLPQTQGkxehVKrPyOEzwPSUM7DZIE0JnKwV9CFWBPdkItHIi JrYYRWBfQ1cmDpDCymAWOlHS2ydVDLkUf/nyEqZl3BiNZmLx9ZR3W/mal8bvozm/tSbI ZsQF6UwzzYv1D8nJlHz7hcZOekIl8WeiTxJbXtysAkbGuI2FzgBmwUFvZ+4PYd6xbwHW W7p3dbtBh+XrG3VvS6LY8qKon4mS+3B4fLhN6kC43LwscsaooKok94ogKCqNDMbwTEV4 qJWQ== X-Gm-Message-State: AOAM531BszLDpClvczlrXTB0NqoqD5Hixag8RDywcnZ4uwcVjRd7t995 APhC9BRx3aYV3d28gWXdMpo= X-Google-Smtp-Source: ABdhPJxrejjkS+3U4Nk1HN0e/saXKTseb0bpLAOoutKsITJv8SwYKYtCNEym6beVKgxT04b7PPqrUA== X-Received: by 2002:a05:6402:2d0:: with SMTP id b16mr22652130edx.194.1616360765375; Sun, 21 Mar 2021 14:06:05 -0700 (PDT) Received: from localhost.localdomain (5-12-16-165.residential.rdsnet.ro. [5.12.16.165]) by smtp.gmail.com with ESMTPSA id r17sm9195664edt.70.2021.03.21.14.06.04 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 21 Mar 2021 14:06:05 -0700 (PDT) From: Vladimir Oltean To: "David S . Miller" , Jakub Kicinski , netdev@vger.kernel.org Cc: Jamal Hadi Salim , Cong Wang , Jiri Pirko , Vladimir Oltean Subject: [PATCH net-next 2/2] net/sched: cls_flower: use nla_get_be32 for TCA_FLOWER_KEY_FLAGS Date: Sun, 21 Mar 2021 23:05:49 +0200 Message-Id: <20210321210549.3234265-2-olteanv@gmail.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210321210549.3234265-1-olteanv@gmail.com> References: <20210321210549.3234265-1-olteanv@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org X-Patchwork-Delegate: kuba@kernel.org From: Vladimir Oltean The existing code is functionally correct: iproute2 parses the ip_flags argument for tc-flower and really packs it as big endian into the TCA_FLOWER_KEY_FLAGS netlink attribute. But there is a problem in the fact that W=1 builds complain: net/sched/cls_flower.c:1047:15: warning: cast to restricted __be32 This is because we should use the dedicated helper for obtaining a __be32 pointer to the netlink attribute, not a u32 one. This ensures type correctness for be32_to_cpu. Signed-off-by: Vladimir Oltean --- net/sched/cls_flower.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/net/sched/cls_flower.c b/net/sched/cls_flower.c index 832a0ece6dbf..9736df97e04d 100644 --- a/net/sched/cls_flower.c +++ b/net/sched/cls_flower.c @@ -1044,8 +1044,8 @@ static int fl_set_key_flags(struct nlattr **tb, u32 *flags_key, return -EINVAL; } - key = be32_to_cpu(nla_get_u32(tb[TCA_FLOWER_KEY_FLAGS])); - mask = be32_to_cpu(nla_get_u32(tb[TCA_FLOWER_KEY_FLAGS_MASK])); + key = be32_to_cpu(nla_get_be32(tb[TCA_FLOWER_KEY_FLAGS])); + mask = be32_to_cpu(nla_get_be32(tb[TCA_FLOWER_KEY_FLAGS_MASK])); *flags_key = 0; *flags_mask = 0;