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{
    "id": 73341,
    "url": "https://patches.dpdk.org/api/patches/73341/",
    "web_url": "https://patches.dpdk.org/patch/73341/",
    "project": {
        "id": 1,
        "url": "https://patches.dpdk.org/api/projects/1/",
        "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"
    },
    "msgid": "<20200706205234.8040-3-david.marchand@redhat.com>",
    "date": "2020-07-06T20:52:26",
    "name": "[v6,02/10] eal: fix multiple definition of per lcore thread id",
    "commit_ref": null,
    "pull_url": null,
    "state": "accepted",
    "archived": true,
    "hash": "9d7fa848c9ec61782743ed217642dc25acfcbfb8",
    "submitter": {
        "id": 1173,
        "url": "https://patches.dpdk.org/api/people/1173/",
        "name": "David Marchand",
        "email": "david.marchand@redhat.com"
    },
    "delegate": {
        "id": 1,
        "url": "https://patches.dpdk.org/api/users/1/",
        "username": "tmonjalo",
        "first_name": "Thomas",
        "last_name": "Monjalon",
        "email": "thomas@monjalon.net"
    },
    "mbox": "https://patches.dpdk.org/patch/73341/mbox/",
    "series": [
        {
            "id": 10826,
            "url": "https://patches.dpdk.org/api/series/10826/",
            "web_url": "https://patches.dpdk.org/project/dpdk/list/?series=10826",
            "date": "2020-07-06T20:52:25",
            "name": "Register non-EAL threads as lcore",
            "version": 6,
            "mbox": "https://patches.dpdk.org/series/10826/mbox/"
        }
    ],
    "comments": "https://patches.dpdk.org/api/patches/73341/comments/",
    "check": "fail",
    "checks": "https://patches.dpdk.org/api/patches/73341/checks/",
    "tags": {},
    "headers": {
        "List-Archive": "<http://mails.dpdk.org/archives/dev/>",
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            "from dpdk.org (dpdk.org [92.243.14.124])\n\tby inbox.dpdk.org (Postfix) with ESMTP id CFD2BA00C5;\n\tMon,  6 Jul 2020 22:53:15 +0200 (CEST)",
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        ],
        "Subject": "[dpdk-dev] [PATCH v6 02/10] eal: fix multiple definition of per\n\tlcore thread id",
        "In-Reply-To": "<20200706205234.8040-1-david.marchand@redhat.com>",
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        "Cc": "jerinjacobk@gmail.com, bruce.richardson@intel.com, mdr@ashroe.eu,\n thomas@monjalon.net, arybchenko@solarflare.com, ktraynor@redhat.com,\n ian.stokes@intel.com, i.maximets@ovn.org, olivier.matz@6wind.com,\n konstantin.ananyev@intel.com, Neil Horman <nhorman@tuxdriver.com>,\n Cunming Liang <cunming.liang@intel.com>",
        "Precedence": "list",
        "From": "David Marchand <david.marchand@redhat.com>",
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        "References": "<20200610144506.30505-1-david.marchand@redhat.com>\n <20200706205234.8040-1-david.marchand@redhat.com>",
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        "Content-Type": "text/plain; charset=US-ASCII",
        "Delivered-To": "patchwork@inbox.dpdk.org",
        "Date": "Mon,  6 Jul 2020 22:52:26 +0200",
        "X-Mimecast-Originator": "redhat.com",
        "X-Mailman-Version": "2.1.15"
    },
    "content": "Because of the inline accessor + static declaration in rte_gettid(),\nwe end up with multiple symbols for RTE_PER_LCORE(_thread_id).\nEach compilation unit will pay a cost when accessing this information\nfor the first time.\n\n$ nm build/app/dpdk-testpmd | grep per_lcore__thread_id\n0000000000000054 d per_lcore__thread_id.5037\n0000000000000040 d per_lcore__thread_id.5103\n0000000000000048 d per_lcore__thread_id.5259\n000000000000004c d per_lcore__thread_id.5259\n0000000000000044 d per_lcore__thread_id.5933\n0000000000000058 d per_lcore__thread_id.6261\n0000000000000050 d per_lcore__thread_id.7378\n000000000000005c d per_lcore__thread_id.7496\n000000000000000c d per_lcore__thread_id.8016\n0000000000000010 d per_lcore__thread_id.8431\n\nMake it global as part of the DPDK_21 stable ABI.\n\nFixes: ef76436c6834 (\"eal: get unique thread id\")\n\nSigned-off-by: David Marchand <david.marchand@redhat.com>\nAcked-by: Ray Kinsella <mdr@ashroe.eu>\nReviewed-by: Olivier Matz <olivier.matz@6wind.com>\n---\n lib/librte_eal/common/eal_common_thread.c | 1 +\n lib/librte_eal/include/rte_eal.h          | 3 ++-\n lib/librte_eal/rte_eal_version.map        | 7 +++++++\n 3 files changed, 10 insertions(+), 1 deletion(-)",
    "diff": "diff --git a/lib/librte_eal/common/eal_common_thread.c b/lib/librte_eal/common/eal_common_thread.c\nindex 7be80c292e..fd13453fee 100644\n--- a/lib/librte_eal/common/eal_common_thread.c\n+++ b/lib/librte_eal/common/eal_common_thread.c\n@@ -22,6 +22,7 @@\n #include \"eal_thread.h\"\n \n RTE_DEFINE_PER_LCORE(unsigned int, _lcore_id) = LCORE_ID_ANY;\n+RTE_DEFINE_PER_LCORE(int, _thread_id) = -1;\n static RTE_DEFINE_PER_LCORE(unsigned int, _socket_id) =\n \t(unsigned int)SOCKET_ID_ANY;\n static RTE_DEFINE_PER_LCORE(rte_cpuset_t, _cpuset);\ndiff --git a/lib/librte_eal/include/rte_eal.h b/lib/librte_eal/include/rte_eal.h\nindex 2f9ed298de..2edf8c6556 100644\n--- a/lib/librte_eal/include/rte_eal.h\n+++ b/lib/librte_eal/include/rte_eal.h\n@@ -447,6 +447,8 @@ enum rte_intr_mode rte_eal_vfio_intr_mode(void);\n  */\n int rte_sys_gettid(void);\n \n+RTE_DECLARE_PER_LCORE(int, _thread_id);\n+\n /**\n  * Get system unique thread id.\n  *\n@@ -456,7 +458,6 @@ int rte_sys_gettid(void);\n  */\n static inline int rte_gettid(void)\n {\n-\tstatic RTE_DEFINE_PER_LCORE(int, _thread_id) = -1;\n \tif (RTE_PER_LCORE(_thread_id) == -1)\n \t\tRTE_PER_LCORE(_thread_id) = rte_sys_gettid();\n \treturn RTE_PER_LCORE(_thread_id);\ndiff --git a/lib/librte_eal/rte_eal_version.map b/lib/librte_eal/rte_eal_version.map\nindex 196eef5afa..0d42d44ce9 100644\n--- a/lib/librte_eal/rte_eal_version.map\n+++ b/lib/librte_eal/rte_eal_version.map\n@@ -221,6 +221,13 @@ DPDK_20.0 {\n \tlocal: *;\n };\n \n+DPDK_21 {\n+\tglobal:\n+\n+\tper_lcore__thread_id;\n+\n+} DPDK_20.0;\n+\n EXPERIMENTAL {\n \tglobal:\n \n",
    "prefixes": [
        "v6",
        "02/10"
    ]
}