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{
    "id": 3546,
    "url": "https://patches.dpdk.org/api/patches/3546/?format=api",
    "web_url": "https://patches.dpdk.org/project/dpdk/patch/1424438206-29526-1-git-send-email-iryzhov@nfware.com/",
    "project": {
        "id": 1,
        "url": "https://patches.dpdk.org/api/projects/1/?format=api",
        "name": "DPDK",
        "link_name": "dpdk",
        "list_id": "dev.dpdk.org",
        "list_email": "dev@dpdk.org",
        "web_url": "http://core.dpdk.org",
        "scm_url": "git://dpdk.org/dpdk",
        "webscm_url": "http://git.dpdk.org/dpdk",
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        "commit_url_format": ""
    },
    "msgid": "<1424438206-29526-1-git-send-email-iryzhov@nfware.com>",
    "list_archive_url": "https://inbox.dpdk.org/dev/1424438206-29526-1-git-send-email-iryzhov@nfware.com",
    "date": "2015-02-20T13:16:46",
    "name": "[dpdk-dev] lpm: fix overflow issue",
    "commit_ref": null,
    "pull_url": null,
    "state": "accepted",
    "archived": true,
    "hash": "4a608bd81c04b801512fe556af3aebc71e9ec79f",
    "submitter": {
        "id": 175,
        "url": "https://patches.dpdk.org/api/people/175/?format=api",
        "name": "Igor Ryzhov",
        "email": "iryzhov@nfware.com"
    },
    "delegate": null,
    "mbox": "https://patches.dpdk.org/project/dpdk/patch/1424438206-29526-1-git-send-email-iryzhov@nfware.com/mbox/",
    "series": [],
    "comments": "https://patches.dpdk.org/api/patches/3546/comments/",
    "check": "pending",
    "checks": "https://patches.dpdk.org/api/patches/3546/checks/",
    "tags": {},
    "related": [],
    "headers": {
        "Return-Path": "<dev-bounces@dpdk.org>",
        "X-Original-To": "patchwork@dpdk.org",
        "Delivered-To": "patchwork@dpdk.org",
        "Received": [
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        ],
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        "X-Received": "by 10.152.87.178 with SMTP id az18mr8643496lab.122.1424438247155;\n\tFri, 20 Feb 2015 05:17:27 -0800 (PST)",
        "From": "Igor Ryzhov <iryzhov@nfware.com>",
        "To": "dev@dpdk.org",
        "Date": "Fri, 20 Feb 2015 16:16:46 +0300",
        "Message-Id": "<1424438206-29526-1-git-send-email-iryzhov@nfware.com>",
        "X-Mailer": "git-send-email 1.9.3 (Apple Git-50)",
        "Cc": "Igor Ryzhov <iryzhov@nfware.com>",
        "Subject": "[dpdk-dev] [PATCH] lpm: fix overflow issue",
        "X-BeenThere": "dev@dpdk.org",
        "X-Mailman-Version": "2.1.15",
        "Precedence": "list",
        "List-Id": "patches and discussions about DPDK <dev.dpdk.org>",
        "List-Unsubscribe": "<http://dpdk.org/ml/options/dev>,\n\t<mailto:dev-request@dpdk.org?subject=unsubscribe>",
        "List-Archive": "<http://dpdk.org/ml/archives/dev/>",
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        "Errors-To": "dev-bounces@dpdk.org",
        "Sender": "\"dev\" <dev-bounces@dpdk.org>"
    },
    "content": "LPM table overflow may occur if table is full and added rule has the biggest depth that already have some rules.\n\nSigned-off-by: Igor Ryzhov <iryzhov@nfware.com>\n---\n lib/librte_lpm/rte_lpm.c | 3 +++\n 1 file changed, 3 insertions(+)",
    "diff": "diff --git a/lib/librte_lpm/rte_lpm.c b/lib/librte_lpm/rte_lpm.c\nindex 983e04b..cc51210 100644\n--- a/lib/librte_lpm/rte_lpm.c\n+++ b/lib/librte_lpm/rte_lpm.c\n@@ -298,6 +298,9 @@ rule_add(struct rte_lpm *lpm, uint32_t ip_masked, uint8_t depth,\n \t\t\t\treturn rule_index;\n \t\t\t}\n \t\t}\n+\n+\t\tif (rule_index == lpm->max_rules)\n+\t\t\treturn -ENOSPC;\n \t} else {\n \t\t/* Calculate the position in which the rule will be stored. */\n \t\trule_index = 0;\n",
    "prefixes": [
        "dpdk-dev"
    ]
}