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{
    "id": 807788,
    "url": "http://patchwork.ozlabs.org/api/patches/807788/?format=api",
    "web_url": "http://patchwork.ozlabs.org/project/netdev/patch/1504114378.11498.124.camel@edumazet-glaptop3.roam.corp.google.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",
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    "msgid": "<1504114378.11498.124.camel@edumazet-glaptop3.roam.corp.google.com>",
    "list_archive_url": null,
    "date": "2017-08-30T17:32:58",
    "name": "[net-next] xen-netfront: be more drop monitor friendly",
    "commit_ref": null,
    "pull_url": null,
    "state": "accepted",
    "archived": true,
    "hash": "f5cc8a74b6e7d617ea18a22345d9f3060d8ef54f",
    "submitter": {
        "id": 2404,
        "url": "http://patchwork.ozlabs.org/api/people/2404/?format=api",
        "name": "Eric Dumazet",
        "email": "eric.dumazet@gmail.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/1504114378.11498.124.camel@edumazet-glaptop3.roam.corp.google.com/mbox/",
    "series": [
        {
            "id": 667,
            "url": "http://patchwork.ozlabs.org/api/series/667/?format=api",
            "web_url": "http://patchwork.ozlabs.org/project/netdev/list/?series=667",
            "date": "2017-08-30T17:32:58",
            "name": "[net-next] xen-netfront: be more drop monitor friendly",
            "version": 1,
            "mbox": "http://patchwork.ozlabs.org/series/667/mbox/"
        }
    ],
    "comments": "http://patchwork.ozlabs.org/api/patches/807788/comments/",
    "check": "pending",
    "checks": "http://patchwork.ozlabs.org/api/patches/807788/checks/",
    "tags": {},
    "related": [],
    "headers": {
        "Return-Path": "<netdev-owner@vger.kernel.org>",
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        "Message-ID": "<1504114378.11498.124.camel@edumazet-glaptop3.roam.corp.google.com>",
        "Subject": "[PATCH net-next] xen-netfront: be more drop monitor friendly",
        "From": "Eric Dumazet <eric.dumazet@gmail.com>",
        "To": "David Miller <davem@davemloft.net>",
        "Cc": "netdev <netdev@vger.kernel.org>",
        "Date": "Wed, 30 Aug 2017 10:32:58 -0700",
        "Content-Type": "text/plain; charset=\"UTF-8\"",
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        "Sender": "netdev-owner@vger.kernel.org",
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    },
    "content": "From: Eric Dumazet <edumazet@google.com>\n\nxennet_start_xmit() might copy skb with inappropriate layout\ninto a fresh one.\n\nOld skb is freed, and at this point it is not a drop, but\na consume. New skb will then be either consumed or dropped. \n\nSigned-off-by: Eric Dumazet <edumazet@google.com>\n---\n drivers/net/xen-netfront.c |    2 +-\n 1 file changed, 1 insertion(+), 1 deletion(-)",
    "diff": "diff --git a/drivers/net/xen-netfront.c b/drivers/net/xen-netfront.c\nindex 7b61adb6270c..523387e71a80 100644\n--- a/drivers/net/xen-netfront.c\n+++ b/drivers/net/xen-netfront.c\n@@ -611,7 +611,7 @@ static int xennet_start_xmit(struct sk_buff *skb, struct net_device *dev)\n \t\tnskb = skb_copy(skb, GFP_ATOMIC);\n \t\tif (!nskb)\n \t\t\tgoto drop;\n-\t\tdev_kfree_skb_any(skb);\n+\t\tdev_consume_skb_any(skb);\n \t\tskb = nskb;\n \t\tpage = virt_to_page(skb->data);\n \t\toffset = offset_in_page(skb->data);\n",
    "prefixes": [
        "net-next"
    ]
}