From patchwork Mon Nov 9 23:13:47 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Eric Dumazet X-Patchwork-Id: 1397174 Return-Path: X-Original-To: patchwork-incoming-netdev@ozlabs.org Delivered-To: patchwork-incoming-netdev@ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=23.128.96.18; helo=vger.kernel.org; envelope-from=netdev-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=gmail.com header.i=@gmail.com header.a=rsa-sha256 header.s=20161025 header.b=Usw6A3/r; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by ozlabs.org (Postfix) with ESMTP id 4CVRdL12tQz9sPB for ; Tue, 10 Nov 2020 10:13:58 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730634AbgKIXN4 (ORCPT ); Mon, 9 Nov 2020 18:13:56 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60178 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729452AbgKIXN4 (ORCPT ); Mon, 9 Nov 2020 18:13:56 -0500 Received: from mail-pf1-x42e.google.com (mail-pf1-x42e.google.com [IPv6:2607:f8b0:4864:20::42e]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B8812C0613CF for ; Mon, 9 Nov 2020 15:13:54 -0800 (PST) Received: by mail-pf1-x42e.google.com with SMTP id e7so9600448pfn.12 for ; Mon, 09 Nov 2020 15:13:54 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=UBc0jRpnMotBJPPpr+nMafrbVcY3nHLtkPpcqs3OA9Q=; b=Usw6A3/rc1FSTBdhpUiwnwnKrgbqhbFXPibseee6my0D0xm7kngnoIxXtMo3L+KLUY lqhl2QOuiAq2GGHZ9OnAp388FH0StXQ+h7Z7zwF5RyC3F7E3CYKjY7Vt8EIQzW+WSRZ3 eSVm/Mfx0L1AuLqx82LGZXRPJu0TjimLJtodm9I2OlVXhG9XJw3shF+78i0525mleD+e 631wqYWeIS0uEb0DAfeqjG5O6Wvh3e8ucPjfDoB7NBPZqSAknpKyjAATw/uPEt7s0no6 QtHTCg83OQL3qMw8ZCzyTbRV8TO6BVYhcmrmbRacV/v/zV6ZOQ0pZpm3BXKeL1RJ6Drl k9Zw== 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:mime-version :content-transfer-encoding; bh=UBc0jRpnMotBJPPpr+nMafrbVcY3nHLtkPpcqs3OA9Q=; b=P2kyA6V68/r7OccwGR1GykZjzHwRTYH6RNYDXDJS5a6G/F+aNEclQXxy2YSqIDAciJ bduHNmZmDS8OVW5P+fcTiHDmGBf+3j0LQToBL94EHDzxhMFI7UZBrQxNYHbGOTAVccGo +dn10gLOXG6PQv44LyF4Poe0uOpEQYDiR39JGJjXfe6ZU8Lgc2GlkcCeQxuvJ0ww86d4 jxb0V6xhiuqZiRi46es8A3/pzFOjuEW4PWkmLE7UpBtWg0W2+T1NFqk/MBNbxkGc4hq2 d4KrI5AuYQAZtmMG1ObB3NpF5gCMYVV0zEiC2RuO4yURZ1LqGzsb5vrA559xdIHgI94t QURw== X-Gm-Message-State: AOAM5305bxOp/tcPAS75X/MZ/7OypAeVU7UO5z2seljVFYpb6XTrIrm7 PdYuAwMF/7NHeU2wXfKPPFk= X-Google-Smtp-Source: ABdhPJwffPRMl2FzLBTHaHmirzKnUqPlTjpMCIctZ4tBNeZQSAjC5MsRdIcDbva46i4Qo8ESqrws5Q== X-Received: by 2002:a17:90b:1b43:: with SMTP id nv3mr1724356pjb.67.1604963634376; Mon, 09 Nov 2020 15:13:54 -0800 (PST) Received: from edumazet1.svl.corp.google.com ([2620:15c:2c4:201:7220:84ff:fe09:1424]) by smtp.gmail.com with ESMTPSA id w16sm12375365pfn.45.2020.11.09.15.13.52 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 09 Nov 2020 15:13:53 -0800 (PST) From: Eric Dumazet To: "David S . Miller" , Jakub Kicinski Cc: netdev , Eric Dumazet , Eric Dumazet Subject: [PATCH net-next 0/2] inet: prevent skb changes in udp{4|6}_lib_lookup_skb() Date: Mon, 9 Nov 2020 15:13:47 -0800 Message-Id: <20201109231349.20946-1-eric.dumazet@gmail.com> X-Mailer: git-send-email 2.29.2.222.g5d2a92d10f8-goog MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org From: Eric Dumazet This came while reviewing Alexander Lobakin patch against UDP GRO: We want to make sure skb wont be changed by these helpers while it is owned by GRO stack. Eric Dumazet (2): inet: constify inet_sdif() argument inet: udp{4|6}_lib_lookup_skb() skb argument is const include/net/ip.h | 2 +- include/net/udp.h | 6 +++--- net/ipv4/udp.c | 2 +- net/ipv6/udp.c | 2 +- 4 files changed, 6 insertions(+), 6 deletions(-)