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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 4BE0BC433FE for ; Tue, 22 Nov 2022 20:30:46 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234831AbiKVUap (ORCPT ); Tue, 22 Nov 2022 15:30:45 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40198 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232517AbiKVUaS (ORCPT ); Tue, 22 Nov 2022 15:30:18 -0500 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 1E5EC1B1E7 for ; Tue, 22 Nov 2022 12:30:18 -0800 (PST) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id A6B5B618CB for ; Tue, 22 Nov 2022 20:30:17 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id ACB42C433C1; Tue, 22 Nov 2022 20:30:16 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1669149017; bh=QKE/smYGsWm9pQOWeYiOJVcdI3DnsY0aJruAkVwD8GE=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=dW6safaK4x8GDATEnLzKTDqecExDT1JMQUbyFIyjFsGH/KwBQbz8X9097TRj+kPt3 lhK3en11nExrzLCrJuN53d14DhYgLIjOeDUeB4RM0G3q5paUsQS4KwovKVkYKuXS6Y 5zkev4VE+o3eD4QKCs+wvsEaluBcBwQef5SVGZIfQX+BnUsFCkzRnQrj00x7nK+TqI N9GtaUSsH6DSA/EUkOI8nNAuWghRWdFJJYTpyKkhylO0CRQ9INX+Q0RLdRU4cVobGi D3902bJbiUkNcpbBe7pqzX+LxWu8tsXwqx3WmVtflA/cCboKE7iaLSUCAyL8zxg4NS Oi5isFoc6uyjg== Date: Tue, 22 Nov 2022 12:30:15 -0800 From: Jakub Kicinski To: Coco Li Cc: "David S. Miller" , Hideaki YOSHIFUJI , David Ahern , Eric Dumazet , Paolo Abeni , Michael Chan , linux-kernel@vger.kernel.org Subject: Re: [PATCH net-next 1/2] IPv6/GRO: generic helper to remove temporary HBH/jumbo header in driver Message-ID: <20221122123015.65ec4f5c@kernel.org> In-Reply-To: <20221122193239.3159985-1-lixiaoyan@google.com> References: <20221122193239.3159985-1-lixiaoyan@google.com> MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, 22 Nov 2022 11:32:38 -0800 Coco Li wrote: > IPv6/TCP and GRO stacks can build big TCP packets with an added > temporary Hop By Hop header. > > Is GSO is not involved, then the temporary header needs to be removed in > the driver. This patch provides a generic helper for drivers that need > to modify their headers in place. you need to cc: netdev