From patchwork Sat Mar 13 11:37:57 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alexander Lobakin X-Patchwork-Id: 399977 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, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=unavailable 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 80A61C43332 for ; Sat, 13 Mar 2021 11:39:48 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 6760564F15 for ; Sat, 13 Mar 2021 11:39:48 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233859AbhCMLiO (ORCPT ); Sat, 13 Mar 2021 06:38:14 -0500 Received: from mail-40136.protonmail.ch ([185.70.40.136]:56898 "EHLO mail-40136.protonmail.ch" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233724AbhCMLiB (ORCPT ); Sat, 13 Mar 2021 06:38:01 -0500 Date: Sat, 13 Mar 2021 11:37:57 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=pm.me; s=protonmail; t=1615635480; bh=OtoaEa4C9A8M8IjnX8ICb3j9vVq3aPxG0RyT+eIX9OU=; h=Date:To:From:Cc:Reply-To:Subject:In-Reply-To:References:From; b=RhSril2pehoQYy1KfwPLC9d5QrYMJIunA0RHJamwEfQSDlhqhhGljeG7eMBtPCNYh afY60XcI2+6fh+Gm42ktHshPGWg4pqbSVTgQbpWX4NHvtcujf8bKUT/ecvmTsmcwLq FkWutvXXjuYgqLnWhvGT2SE9v/dJeSucNV3aMrTHYZlSYQB9vVScByJlIRw3zSGeIc XEyESqBtr/It3OpW2C/PB/ziNTGoWlnif7AMwd826H9ZQCLSGFOBt86dP2M9FUrf9M 0SalEn9UaJzXchaOgTGU+pTq9tP2ftf1todbPfcQnwRhkYUBvJPlFuU02IiQFDP9LI NaotVoi+2IXhg== To: "David S. Miller" , Jakub Kicinski From: Alexander Lobakin Cc: Alexei Starovoitov , Daniel Borkmann , Andrii Nakryiko , Martin KaFai Lau , Song Liu , Yonghong Song , John Fastabend , KP Singh , Jonathan Lemon , Alexander Lobakin , Eric Dumazet , Willem de Bruijn , Kevin Hao , Pablo Neira Ayuso , Jakub Sitnicki , Marco Elver , Dexuan Cui , Vladimir Oltean , Ariel Levkovich , Wang Qing , Davide Caratti , Guillaume Nault , Eran Ben Elisha , Mauro Carvalho Chehab , Kirill Tkhai , Bartosz Golaszewski , netdev@vger.kernel.org, linux-kernel@vger.kernel.org, bpf@vger.kernel.org Reply-To: Alexander Lobakin Subject: [PATCH v2 net-next 5/6] ethernet: constify eth_get_headlen()'s @data argument Message-ID: <20210313113645.5949-6-alobakin@pm.me> In-Reply-To: <20210313113645.5949-1-alobakin@pm.me> References: <20210313113645.5949-1-alobakin@pm.me> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org It's used only for flow dissection, which now takes constant data pointers. Signed-off-by: Alexander Lobakin --- include/linux/etherdevice.h | 2 +- net/ethernet/eth.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) -- 2.30.2 diff --git a/include/linux/etherdevice.h b/include/linux/etherdevice.h index bcb2f81baafb..330345b1be54 100644 --- a/include/linux/etherdevice.h +++ b/include/linux/etherdevice.h @@ -29,7 +29,7 @@ struct device; int eth_platform_get_mac_address(struct device *dev, u8 *mac_addr); unsigned char *arch_get_platform_mac_address(void); int nvmem_get_mac_address(struct device *dev, void *addrbuf); -u32 eth_get_headlen(const struct net_device *dev, void *data, unsigned int len); +u32 eth_get_headlen(const struct net_device *dev, const void *data, u32 len); __be16 eth_type_trans(struct sk_buff *skb, struct net_device *dev); extern const struct header_ops eth_header_ops; diff --git a/net/ethernet/eth.c b/net/ethernet/eth.c index 4106373180c6..e01cf766d2c5 100644 --- a/net/ethernet/eth.c +++ b/net/ethernet/eth.c @@ -122,7 +122,7 @@ EXPORT_SYMBOL(eth_header); * Make a best effort attempt to pull the length for all of the headers for * a given frame in a linear buffer. */ -u32 eth_get_headlen(const struct net_device *dev, void *data, unsigned int len) +u32 eth_get_headlen(const struct net_device *dev, const void *data, u32 len) { const unsigned int flags = FLOW_DISSECTOR_F_PARSE_1ST_FRAG; const struct ethhdr *eth = (const struct ethhdr *)data;