{"id":818924,"url":"http://patchwork.ozlabs.org/api/patches/818924/?format=json","web_url":"http://patchwork.ozlabs.org/project/netdev/patch/20170927045803.2477-7-tom@quantonium.net/","project":{"id":7,"url":"http://patchwork.ozlabs.org/api/projects/7/?format=json","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":"<20170927045803.2477-7-tom@quantonium.net>","list_archive_url":null,"date":"2017-09-27T04:57:57","name":"[v4,net-next,06/12] gtp: Use goto for exceptions in gtp_udp_encap_recv funcs","commit_ref":null,"pull_url":null,"state":"deferred","archived":true,"hash":"c39f59d8e6fe0091c2bb8cfd65c4aaaea3dc58ca","submitter":{"id":72064,"url":"http://patchwork.ozlabs.org/api/people/72064/?format=json","name":"Tom Herbert","email":"tom@quantonium.net"},"delegate":{"id":34,"url":"http://patchwork.ozlabs.org/api/users/34/?format=json","username":"davem","first_name":"David","last_name":"Miller","email":"davem@davemloft.net"},"mbox":"http://patchwork.ozlabs.org/project/netdev/patch/20170927045803.2477-7-tom@quantonium.net/mbox/","series":[{"id":5279,"url":"http://patchwork.ozlabs.org/api/series/5279/?format=json","web_url":"http://patchwork.ozlabs.org/project/netdev/list/?series=5279","date":"2017-09-27T04:57:51","name":"gtp: Additional feature support - Part I","version":4,"mbox":"http://patchwork.ozlabs.org/series/5279/mbox/"}],"comments":"http://patchwork.ozlabs.org/api/patches/818924/comments/","check":"pending","checks":"http://patchwork.ozlabs.org/api/patches/818924/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; 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Tue, 26 Sep 2017 21:58:54 -0700 (PDT)","from localhost.localdomain (c-73-162-13-107.hsd1.ca.comcast.net.\n\t[73.162.13.107]) by smtp.gmail.com with ESMTPSA id\n\ty16sm16502728pfe.68.2017.09.26.21.58.52\n\t(version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128);\n\tTue, 26 Sep 2017 21:58:53 -0700 (PDT)"],"DKIM-Signature":"v=1; a=rsa-sha256; c=relaxed/relaxed;\n\td=quantonium-net.20150623.gappssmtp.com; s=20150623;\n\th=from:to:cc:subject:date:message-id:in-reply-to:references;\n\tbh=M3FXeq2nLYeSn0fU0Ho7wThC1D83EIjbYlgwheu0zTM=;\n\tb=zwTns3xuX/eDWGocnfa8GcQqMClWuUT0xQp3b4PyxJD2KUXWAq7y9ftTDbezZijptz\n\tJ95FT4dvkBpdcMDv/K7Za8TeeyLfG7jwgfzDcHbIPeBw+iI/iwRYuEwqlgBvBn//wdXN\n\t0Lohx2DmoxLeaIEutLojgppRf6sp3OyrZzad5Fdya5K843lBJfOFmpEOEiyfP2wyrPg/\n\tJMlD25YWNT5uJ+HogP6CuAX+k+1RbYy/Ri6ZNyL5G+5kdc0j5v7F4QJaW5CpVIQpM1Y4\n\t3JQt2V9c/+k2QYlWL3Clke6LgaxfxmiTSZWo93/57+GTTKzYMzYIoht3QID2YifzRj8o\n\th7gw==","X-Google-DKIM-Signature":"v=1; a=rsa-sha256; c=relaxed/relaxed;\n\td=1e100.net; s=20161025;\n\th=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to\n\t:references;\n\tbh=M3FXeq2nLYeSn0fU0Ho7wThC1D83EIjbYlgwheu0zTM=;\n\tb=qddvGS6WZ32YNSKQR5JxEuuioi/v0R33IsyJMwIqGcbKZKlCfZFsFhbZ0lcr5VO4a+\n\t5Nucf0HylPU/Dr9PjLl821iQSrolRsvkzVn0a/lTGqxgPG/hOld6SjLlXdRERaVo06Lo\n\tv5XYbBDM4x0pasWgmEYhA1pmxvC4//BaqqoYT1/KnUcJ1rGZ4OqOARyNnNTQgdTvpTSr\n\tQTSyh9YwuLZQ5IgpbfZnCg7mz6oPhBbJK+DxpC430DblFrNDk3ZvDM9uwXKCxqissBjP\n\tkHIX830Z7CPDs/+kmMgvvScQ/Nn+LwJPATX4nbAB7iPTQAJsAa1gS15GftLBUYVOF6Ug\n\tUrvA==","X-Gm-Message-State":"AHPjjUiXshqrc5VcM3lR4C0cBG6/D5g89lPG+HVZ/4RKbosRIi7+HMkk\n\tlBpsc20rTi0jnjIDRqwbW4Qeuw==","X-Google-Smtp-Source":"AOwi7QCwMjg5RgogvmllnIiJv1gtwBEVlOO1hhcmItP2QmGBpW5QQeYqzyU8XZPjUxyto+9fYJh+Cw==","X-Received":"by 10.99.163.65 with SMTP id v1mr199537pgn.310.1506488333938;\n\tTue, 26 Sep 2017 21:58:53 -0700 (PDT)","From":"Tom Herbert <tom@quantonium.net>","To":"davem@davemloft.net","Cc":"pablo@netfilter.org, laforge@gnumonks.org, aschultz@tpip.net,\n\tnetdev@vger.kernel.org, rohit@quantonium.net,\n\tTom Herbert <tom@quantonium.net>","Subject":"[PATCH v4 net-next 06/12] gtp: Use goto for exceptions in\n\tgtp_udp_encap_recv funcs","Date":"Tue, 26 Sep 2017 21:57:57 -0700","Message-Id":"<20170927045803.2477-7-tom@quantonium.net>","X-Mailer":"git-send-email 2.11.0","In-Reply-To":"<20170927045803.2477-1-tom@quantonium.net>","References":"<20170927045803.2477-1-tom@quantonium.net>","Sender":"netdev-owner@vger.kernel.org","Precedence":"bulk","List-ID":"<netdev.vger.kernel.org>","X-Mailing-List":"netdev@vger.kernel.org"},"content":"Consolidate return logic to make it easier to extend.\n\nSigned-off-by: Tom Herbert <tom@quantonium.net>\n---\n drivers/net/gtp.c | 26 +++++++++++++++++---------\n 1 file changed, 17 insertions(+), 9 deletions(-)","diff":"diff --git a/drivers/net/gtp.c b/drivers/net/gtp.c\nindex f2aac5d01143..00e5ea5cb935 100644\n--- a/drivers/net/gtp.c\n+++ b/drivers/net/gtp.c\n@@ -234,23 +234,27 @@ static int gtp0_udp_encap_recv(struct gtp_dev *gtp, struct sk_buff *skb)\n \tstruct pdp_ctx *pctx;\n \n \tif (!pskb_may_pull(skb, hdrlen))\n-\t\treturn -1;\n+\t\tgoto drop;\n \n \tgtp0 = (struct gtp0_header *)(skb->data + sizeof(struct udphdr));\n \n \tif ((gtp0->flags >> 5) != GTP_V0)\n-\t\treturn 1;\n+\t\tgoto pass;\n \n \tif (gtp0->type != GTP_TPDU)\n-\t\treturn 1;\n+\t\tgoto pass;\n \n \tpctx = gtp0_pdp_find(gtp, be64_to_cpu(gtp0->tid));\n \tif (!pctx) {\n \t\tnetdev_dbg(gtp->dev, \"No PDP ctx to decap skb=%p\\n\", skb);\n-\t\treturn 1;\n+\t\tgoto pass;\n \t}\n \n \treturn gtp_rx(pctx, skb, hdrlen, gtp->role);\n+drop:\n+\treturn -1;\n+pass:\n+\treturn 1;\n }\n \n static int gtp1u_udp_encap_recv(struct gtp_dev *gtp, struct sk_buff *skb)\n@@ -261,15 +265,15 @@ static int gtp1u_udp_encap_recv(struct gtp_dev *gtp, struct sk_buff *skb)\n \tstruct pdp_ctx *pctx;\n \n \tif (!pskb_may_pull(skb, hdrlen))\n-\t\treturn -1;\n+\t\tgoto drop;\n \n \tgtp1 = (struct gtp1_header *)(skb->data + sizeof(struct udphdr));\n \n \tif ((gtp1->flags >> 5) != GTP_V1)\n-\t\treturn 1;\n+\t\tgoto pass;\n \n \tif (gtp1->type != GTP_TPDU)\n-\t\treturn 1;\n+\t\tgoto pass;\n \n \t/* From 29.060: \"This field shall be present if and only if any one or\n \t * more of the S, PN and E flags are set.\".\n@@ -282,17 +286,21 @@ static int gtp1u_udp_encap_recv(struct gtp_dev *gtp, struct sk_buff *skb)\n \n \t/* Make sure the header is larger enough, including extensions. */\n \tif (!pskb_may_pull(skb, hdrlen))\n-\t\treturn -1;\n+\t\tgoto drop;\n \n \tgtp1 = (struct gtp1_header *)(skb->data + sizeof(struct udphdr));\n \n \tpctx = gtp1_pdp_find(gtp, ntohl(gtp1->tid));\n \tif (!pctx) {\n \t\tnetdev_dbg(gtp->dev, \"No PDP ctx to decap skb=%p\\n\", skb);\n-\t\treturn 1;\n+\t\tgoto drop;\n \t}\n \n \treturn gtp_rx(pctx, skb, hdrlen, gtp->role);\n+drop:\n+\treturn -1;\n+pass:\n+\treturn 1;\n }\n \n static void gtp_encap_destroy(struct sock *sk)\n","prefixes":["v4","net-next","06/12"]}