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GET /api/patches/807035/?format=api
{ "id": 807035, "url": "http://patchwork.ozlabs.org/api/patches/807035/?format=api", "web_url": "http://patchwork.ozlabs.org/project/netdev/patch/1504002694-1931-4-git-send-email-steffen.klassert@secunet.com/", "project": { "id": 7, "url": "http://patchwork.ozlabs.org/api/projects/7/?format=api", "name": "Linux network development", "link_name": "netdev", "list_id": "netdev.vger.kernel.org", "list_email": "netdev@vger.kernel.org", "web_url": null, "scm_url": null, "webscm_url": null, "list_archive_url": "", "list_archive_url_format": "", "commit_url_format": "" }, "msgid": "<1504002694-1931-4-git-send-email-steffen.klassert@secunet.com>", "list_archive_url": null, "date": "2017-08-29T10:31:30", "name": "[3/7] esp: Fix skb tailroom calculation", "commit_ref": null, "pull_url": null, "state": "accepted", "archived": true, "hash": "81b802455a43bc048b231195a92fc276d979e665", "submitter": { "id": 1442, "url": "http://patchwork.ozlabs.org/api/people/1442/?format=api", "name": "Steffen Klassert", "email": "steffen.klassert@secunet.com" }, "delegate": { "id": 34, "url": "http://patchwork.ozlabs.org/api/users/34/?format=api", "username": "davem", "first_name": "David", "last_name": "Miller", "email": "davem@davemloft.net" }, "mbox": "http://patchwork.ozlabs.org/project/netdev/patch/1504002694-1931-4-git-send-email-steffen.klassert@secunet.com/mbox/", "series": [ { "id": 343, "url": "http://patchwork.ozlabs.org/api/series/343/?format=api", "web_url": "http://patchwork.ozlabs.org/project/netdev/list/?series=343", "date": "2017-08-29T10:31:28", "name": "[1/7] net: xfrm: don't double-hold dst when sk_policy in use.", "version": 1, "mbox": "http://patchwork.ozlabs.org/series/343/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/807035/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/807035/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "<netdev-owner@vger.kernel.org>", "X-Original-To": "patchwork-incoming@ozlabs.org", "Delivered-To": "patchwork-incoming@ozlabs.org", "Authentication-Results": "ozlabs.org;\n\tspf=none (mailfrom) smtp.mailfrom=vger.kernel.org\n\t(client-ip=209.132.180.67; helo=vger.kernel.org;\n\tenvelope-from=netdev-owner@vger.kernel.org;\n\treceiver=<UNKNOWN>)", "Received": [ "from vger.kernel.org (vger.kernel.org [209.132.180.67])\n\tby ozlabs.org (Postfix) with ESMTP id 3xhQTJ5Vy7z9t3R\n\tfor <patchwork-incoming@ozlabs.org>;\n\tTue, 29 Aug 2017 20:52:50 +1000 (AEST)", "(majordomo@vger.kernel.org) by vger.kernel.org via listexpand\n\tid S1752328AbdH2KcG (ORCPT <rfc822;patchwork-incoming@ozlabs.org>);\n\tTue, 29 Aug 2017 06:32:06 -0400", "from a.mx.secunet.com ([62.96.220.36]:50672 \"EHLO a.mx.secunet.com\"\n\trhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP\n\tid S1752030AbdH2Kbn (ORCPT <rfc822;netdev@vger.kernel.org>);\n\tTue, 29 Aug 2017 06:31:43 -0400", "from localhost (localhost [127.0.0.1])\n\tby a.mx.secunet.com (Postfix) with ESMTP id A92CD201A0;\n\tTue, 29 Aug 2017 12:31:42 +0200 (CEST)", "from a.mx.secunet.com ([127.0.0.1])\n\tby localhost (a.mx.secunet.com [127.0.0.1]) (amavisd-new, port 10024)\n\twith ESMTP id N7tJdYSoBAps; Tue, 29 Aug 2017 12:31:42 +0200 (CEST)", "from mail-essen-01.secunet.de (mail-essen-01.secunet.de\n\t[10.53.40.204])\n\t(using TLSv1 with cipher ECDHE-RSA-AES256-SHA (256/256 bits))\n\t(No client certificate requested)\n\tby a.mx.secunet.com (Postfix) with ESMTPS id A7665201A7;\n\tTue, 29 Aug 2017 12:31:41 +0200 (CEST)", "from gauss2.secunet.de (10.182.7.193) by mail-essen-01.secunet.de\n\t(10.53.40.204) with Microsoft SMTP Server id 14.3.361.1;\n\tTue, 29 Aug 2017 12:31:41 +0200", "by gauss2.secunet.de (Postfix, from userid 1000) id 0A37C140588;\n\tTue, 29 Aug 2017 12:31:40 +0200 (CEST)" ], "X-Virus-Scanned": "by secunet", "From": "Steffen Klassert <steffen.klassert@secunet.com>", "To": "David Miller <davem@davemloft.net>", "CC": "Herbert Xu <herbert@gondor.apana.org.au>,\n\tSteffen Klassert <steffen.klassert@secunet.com>, <netdev@vger.kernel.org>", "Subject": "[PATCH 3/7] esp: Fix skb tailroom calculation", "Date": "Tue, 29 Aug 2017 12:31:30 +0200", "Message-ID": "<1504002694-1931-4-git-send-email-steffen.klassert@secunet.com>", "X-Mailer": "git-send-email 2.7.4", "In-Reply-To": "<1504002694-1931-1-git-send-email-steffen.klassert@secunet.com>", "References": "<1504002694-1931-1-git-send-email-steffen.klassert@secunet.com>", "MIME-Version": "1.0", "Content-Type": "text/plain", "X-G-Data-MailSecurity-for-Exchange-State": "0", "X-G-Data-MailSecurity-for-Exchange-Error": "0", "X-G-Data-MailSecurity-for-Exchange-Sender": "23", "X-G-Data-MailSecurity-for-Exchange-Server": "d65e63f7-5c15-413f-8f63-c0d707471c93", "X-EXCLAIMER-MD-CONFIG": "2c86f778-e09b-4440-8b15-867914633a10", "X-G-Data-MailSecurity-for-Exchange-Guid": "0FCEB268-87E7-4EAA-A1BA-5A39088156D6", "Sender": "netdev-owner@vger.kernel.org", "Precedence": "bulk", "List-ID": "<netdev.vger.kernel.org>", "X-Mailing-List": "netdev@vger.kernel.org" }, "content": "We use skb_availroom to calculate the skb tailroom for the\nESP trailer. skb_availroom calculates the tailroom and\nsubtracts this value by reserved_tailroom. However\nreserved_tailroom is a union with the skb mark. This means\nthat we subtract the tailroom by the skb mark if set.\nFix this by using skb_tailroom instead.\n\nFixes: cac2661c53f3 (\"esp4: Avoid skb_cow_data whenever possible\")\nFixes: 03e2a30f6a27 (\"esp6: Avoid skb_cow_data whenever possible\")\nSigned-off-by: Steffen Klassert <steffen.klassert@secunet.com>\n---\n net/ipv4/esp4.c | 2 +-\n net/ipv6/esp6.c | 2 +-\n 2 files changed, 2 insertions(+), 2 deletions(-)", "diff": "diff --git a/net/ipv4/esp4.c b/net/ipv4/esp4.c\nindex a8ddb95..df68963 100644\n--- a/net/ipv4/esp4.c\n+++ b/net/ipv4/esp4.c\n@@ -258,7 +258,7 @@ int esp_output_head(struct xfrm_state *x, struct sk_buff *skb, struct esp_info *\n \t\tesp_output_udp_encap(x, skb, esp);\n \n \tif (!skb_cloned(skb)) {\n-\t\tif (tailen <= skb_availroom(skb)) {\n+\t\tif (tailen <= skb_tailroom(skb)) {\n \t\t\tnfrags = 1;\n \t\t\ttrailer = skb;\n \t\t\ttail = skb_tail_pointer(trailer);\ndiff --git a/net/ipv6/esp6.c b/net/ipv6/esp6.c\nindex 4e3fdc88..ab64f36 100644\n--- a/net/ipv6/esp6.c\n+++ b/net/ipv6/esp6.c\n@@ -226,7 +226,7 @@ int esp6_output_head(struct xfrm_state *x, struct sk_buff *skb, struct esp_info\n \tint tailen = esp->tailen;\n \n \tif (!skb_cloned(skb)) {\n-\t\tif (tailen <= skb_availroom(skb)) {\n+\t\tif (tailen <= skb_tailroom(skb)) {\n \t\t\tnfrags = 1;\n \t\t\ttrailer = skb;\n \t\t\ttail = skb_tail_pointer(trailer);\n", "prefixes": [ "3/7" ] }