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{
    "id": 809881,
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    "date": "2017-09-05T01:03:27",
    "name": "netfilter: xt_hashlimit: fix 64 bit division compile error",
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    "hash": "82a107248088515fb6e25c048e622bcfdfd03d84",
    "submitter": {
        "id": 66296,
        "url": "http://patchwork.ozlabs.org/api/1.2/people/66296/?format=api",
        "name": "Vishwanath Pai",
        "email": "vpai@akamai.com"
    },
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        "username": "davem",
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            "date": "2017-09-05T01:03:27",
            "name": "netfilter: xt_hashlimit: fix 64 bit division compile error",
            "version": 1,
            "mbox": "http://patchwork.ozlabs.org/series/1472/mbox/"
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    ],
    "comments": "http://patchwork.ozlabs.org/api/patches/809881/comments/",
    "check": "pending",
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    "tags": {},
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    "headers": {
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        "From": "Vishwanath Pai <vpai@akamai.com>",
        "To": "pablo@netfilter.org, kadlec@blackhole.kfki.hu,\n\tnetfilter-devel@vger.kernel.org",
        "Cc": "johunt@akamai.com, fw@strlen.de, netdev@vger.kernel.org,\n\tpai.vishwain@gmail.com",
        "Subject": "[PATCH] netfilter: xt_hashlimit: fix 64 bit division compile error",
        "Date": "Mon,  4 Sep 2017 21:03:27 -0400",
        "Message-Id": "<1504573407-26293-1-git-send-email-vpai@akamai.com>",
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        "X-Mailing-List": "netdev@vger.kernel.org"
    },
    "content": "commit bea74641e378 (\"netfilter: xt_hashlimit: add rate match mode\")\nintroduced a line where we divide two 64bit unsigned integers. This\nbreaks on ARM processors with the error:\n\nERROR: \"__aeabi_uldivmod\" [net/netfilter/xt_hashlimit.ko] undefined!\n\nWe can fix it by using div64_u64 instead.\n\nFixes: bea74641e378 (\"netfilter: xt_hashlimit: add rate match mode\")\nSigned-off-by: Vishwanath Pai <vpai@akamai.com>\n---\n net/netfilter/xt_hashlimit.c | 2 +-\n 1 file changed, 1 insertion(+), 1 deletion(-)",
    "diff": "diff --git a/net/netfilter/xt_hashlimit.c b/net/netfilter/xt_hashlimit.c\nindex 10d4823..fece7c2 100644\n--- a/net/netfilter/xt_hashlimit.c\n+++ b/net/netfilter/xt_hashlimit.c\n@@ -531,7 +531,7 @@ static u64 user2rate_bytes(u64 user)\n {\n \tu64 r;\n \n-\tr = user ? 0xFFFFFFFFULL / user : 0xFFFFFFFFULL;\n+\tr = user ? div64_u64(0xFFFFFFFFULL, user) : 0xFFFFFFFFULL;\n \tr = (r - 1) << 4;\n \treturn r;\n }\n",
    "prefixes": []
}