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{
    "id": 40738,
    "url": "http://patchwork.dpdk.org/api/patches/40738/?format=api",
    "web_url": "http://patchwork.dpdk.org/project/dpdk/patch/20180607094322.14312-25-mk@semihalf.com/",
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        "name": "DPDK",
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        "list_id": "dev.dpdk.org",
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    "msgid": "<20180607094322.14312-25-mk@semihalf.com>",
    "list_archive_url": "https://inbox.dpdk.org/dev/20180607094322.14312-25-mk@semihalf.com",
    "date": "2018-06-07T09:43:20",
    "name": "[dpdk-dev,v3,25/27] net/ena: fix GENMASK_ULL macro",
    "commit_ref": null,
    "pull_url": null,
    "state": "accepted",
    "archived": true,
    "hash": "8f29fc834b6b6101e1288ba8ab090805cb32d468",
    "submitter": {
        "id": 786,
        "url": "http://patchwork.dpdk.org/api/people/786/?format=api",
        "name": "Michal Krawczyk",
        "email": "mk@semihalf.com"
    },
    "delegate": {
        "id": 319,
        "url": "http://patchwork.dpdk.org/api/users/319/?format=api",
        "username": "fyigit",
        "first_name": "Ferruh",
        "last_name": "Yigit",
        "email": "ferruh.yigit@amd.com"
    },
    "mbox": "http://patchwork.dpdk.org/project/dpdk/patch/20180607094322.14312-25-mk@semihalf.com/mbox/",
    "series": [
        {
            "id": 26,
            "url": "http://patchwork.dpdk.org/api/series/26/?format=api",
            "web_url": "http://patchwork.dpdk.org/project/dpdk/list/?series=26",
            "date": "2018-06-07T09:43:00",
            "name": "net/ena: new features and fixes",
            "version": 3,
            "mbox": "http://patchwork.dpdk.org/series/26/mbox/"
        }
    ],
    "comments": "http://patchwork.dpdk.org/api/patches/40738/comments/",
    "check": "fail",
    "checks": "http://patchwork.dpdk.org/api/patches/40738/checks/",
    "tags": {},
    "related": [],
    "headers": {
        "Return-Path": "<dev-bounces@dpdk.org>",
        "X-Original-To": "patchwork@dpdk.org",
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        "Received": [
            "from [92.243.14.124] (localhost [127.0.0.1])\n\tby dpdk.org (Postfix) with ESMTP id 5CB9C4CC3;\n\tThu,  7 Jun 2018 11:44:25 +0200 (CEST)",
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        "From": "Michal Krawczyk <mk@semihalf.com>",
        "To": "Marcin Wojtas <mw@semihalf.com>, Michal Krawczyk <mk@semihalf.com>,\n\tGuy Tzalik <gtzalik@amazon.com>, Evgeny Schemeilin <evgenys@amazon.com>",
        "Cc": "dev@dpdk.org,\n\tmatua@amazon.com,\n\tRafal Kozik <rk@semihalf.com>",
        "Date": "Thu,  7 Jun 2018 11:43:20 +0200",
        "Message-Id": "<20180607094322.14312-25-mk@semihalf.com>",
        "X-Mailer": "git-send-email 2.14.1",
        "In-Reply-To": "<20180607094322.14312-1-mk@semihalf.com>",
        "References": "<20180607094322.14312-1-mk@semihalf.com>",
        "Subject": "[dpdk-dev] [PATCH v3 25/27] net/ena: fix GENMASK_ULL macro",
        "X-BeenThere": "dev@dpdk.org",
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        "Errors-To": "dev-bounces@dpdk.org",
        "Sender": "\"dev\" <dev-bounces@dpdk.org>"
    },
    "content": "From: Rafal Kozik <rk@semihalf.com>\n\nWhen use GENMASK_ULL(63,0) left shift by 64 bits is performed.\nShifting by number greater or equal then word length\nis undefined operation and failed on some platforms.\n\nFixes: 9ba7981ec992 (\"ena: add communication layer for DPDK\")\n\nSigned-off-by: Rafal Kozik <rk@semihalf.com>\nAcked-by: Michal Krawczyk <mk@semihalf.com>\n---\n drivers/net/ena/base/ena_plat_dpdk.h | 4 +++-\n 1 file changed, 3 insertions(+), 1 deletion(-)",
    "diff": "diff --git a/drivers/net/ena/base/ena_plat_dpdk.h b/drivers/net/ena/base/ena_plat_dpdk.h\nindex 22d7a9cb1..8a04e84b9 100644\n--- a/drivers/net/ena/base/ena_plat_dpdk.h\n+++ b/drivers/net/ena/base/ena_plat_dpdk.h\n@@ -116,11 +116,13 @@ typedef uint64_t dma_addr_t;\n #define ENA_MIN16(x, y) RTE_MIN((x), (y))\n #define ENA_MIN8(x, y) RTE_MIN((x), (y))\n \n+#define BITS_PER_LONG_LONG (__SIZEOF_LONG_LONG__ * 8)\n #define U64_C(x) x ## ULL\n #define BIT(nr)         (1UL << (nr))\n #define BITS_PER_LONG\t(__SIZEOF_LONG__ * 8)\n #define GENMASK(h, l)\t(((~0UL) << (l)) & (~0UL >> (BITS_PER_LONG - 1 - (h))))\n-#define GENMASK_ULL(h, l) (((U64_C(1) << ((h) - (l) + 1)) - 1) << (l))\n+#define GENMASK_ULL(h, l) (((~0ULL) - (1ULL << (l)) + 1) & \\\n+\t\t\t  (~0ULL >> (BITS_PER_LONG_LONG - 1 - (h))))\n \n #ifdef RTE_LIBRTE_ENA_COM_DEBUG\n #define ena_trc_dbg(format, arg...)\t\t\t\t\t\\\n",
    "prefixes": [
        "dpdk-dev",
        "v3",
        "25/27"
    ]
}