From mboxrd@z Thu Jan 1 00:00:00 1970 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=-10.0 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,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 E5481C43441 for ; Thu, 8 Nov 2018 22:35:02 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id A085C20844 for ; Thu, 8 Nov 2018 22:35:02 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="DmByO3iI" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org A085C20844 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=linuxfoundation.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730001AbeKIIMk (ORCPT ); Fri, 9 Nov 2018 03:12:40 -0500 Received: from mail.kernel.org ([198.145.29.99]:54928 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728803AbeKIHhH (ORCPT ); Fri, 9 Nov 2018 02:37:07 -0500 Received: from localhost (unknown [208.72.13.198]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id C916420989; Thu, 8 Nov 2018 21:59:38 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1541714378; bh=s2wTjwOp4XfL50Watvv+rbBMg0eNPhYIacqVfsR8nKA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=DmByO3iIbgBHc9l9Oxri3lxoBIvarsdo4H7XM6W3rDG96pHMbmzd7OiUpSoEiRJoe CAnh4P+KI2hOMJb6EGzrn5ev/84PFXV6iMYtYmG7dttgFmLWb6YxhUsW2+mgh0MQxI grOpHfnuTxgZW/OSWdOzbehwxGhLzxVD0n4ce9sk= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Eric Dumazet , Johannes Berg , "David S. Miller" , Sasha Levin Subject: [PATCH 4.4 020/114] ipv6: suppress sparse warnings in IP6_ECN_set_ce() Date: Thu, 8 Nov 2018 13:50:35 -0800 Message-Id: <20181108215100.973855851@linuxfoundation.org> X-Mailer: git-send-email 2.19.1 In-Reply-To: <20181108215059.051093652@linuxfoundation.org> References: <20181108215059.051093652@linuxfoundation.org> User-Agent: quilt/0.65 X-stable: review MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 4.4-stable review patch. If anyone has any objections, please let me know. ------------------ [ Upstream commit c15c0ab12fd62f2b19181d05c62d24bc9fa55a42 ] Pass the correct type __wsum to csum_sub() and csum_add(). This doesn't really change anything since __wsum really *is* __be32, but removes the address space warnings from sparse. Cc: Eric Dumazet Fixes: 34ae6a1aa054 ("ipv6: update skb->csum when CE mark is propagated") Signed-off-by: Johannes Berg Acked-by: Eric Dumazet Signed-off-by: David S. Miller Signed-off-by: Sasha Levin --- include/net/inet_ecn.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/include/net/inet_ecn.h b/include/net/inet_ecn.h index 0dc0a51da38f..dce2d586d9ce 100644 --- a/include/net/inet_ecn.h +++ b/include/net/inet_ecn.h @@ -128,7 +128,8 @@ static inline int IP6_ECN_set_ce(struct sk_buff *skb, struct ipv6hdr *iph) to = from | htonl(INET_ECN_CE << 20); *(__be32 *)iph = to; if (skb->ip_summed == CHECKSUM_COMPLETE) - skb->csum = csum_add(csum_sub(skb->csum, from), to); + skb->csum = csum_add(csum_sub(skb->csum, (__force __wsum)from), + (__force __wsum)to); return 1; } -- 2.17.1