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GET /api/patches/122077/?format=api
HTTP 200 OK
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{
    "id": 122077,
    "url": "http://patchwork.dpdk.org/api/patches/122077/?format=api",
    "web_url": "http://patchwork.dpdk.org/project/dpdk/patch/1673615669-21011-2-git-send-email-vipinp@vmware.com/",
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    "date": "2023-01-13T13:14:28",
    "name": "[1/2] Memory Allocation: Fixes ignore_msk during find_next_n() in fb_array library",
    "commit_ref": null,
    "pull_url": null,
    "state": "new",
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    "hash": "6e698c473993af9eeb0b8aea5e6453ae086c6d5d",
    "submitter": {
        "id": 2933,
        "url": "http://patchwork.dpdk.org/api/people/2933/?format=api",
        "name": "Vipin P R",
        "email": "vipinp@vmware.com"
    },
    "delegate": {
        "id": 1,
        "url": "http://patchwork.dpdk.org/api/users/1/?format=api",
        "username": "tmonjalo",
        "first_name": "Thomas",
        "last_name": "Monjalon",
        "email": "thomas@monjalon.net"
    },
    "mbox": "http://patchwork.dpdk.org/project/dpdk/patch/1673615669-21011-2-git-send-email-vipinp@vmware.com/mbox/",
    "series": [
        {
            "id": 26552,
            "url": "http://patchwork.dpdk.org/api/series/26552/?format=api",
            "web_url": "http://patchwork.dpdk.org/project/dpdk/list/?series=26552",
            "date": "2023-01-13T13:14:27",
            "name": "*** Memory Allocation: Fixes ignore_msk during find_next_n() in fb_array library***",
            "version": 1,
            "mbox": "http://patchwork.dpdk.org/series/26552/mbox/"
        }
    ],
    "comments": "http://patchwork.dpdk.org/api/patches/122077/comments/",
    "check": "warning",
    "checks": "http://patchwork.dpdk.org/api/patches/122077/checks/",
    "tags": {},
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        "From": "Vipin P R <vipinp@vmware.com>",
        "To": "anatoly.burakov@intel.com",
        "Cc": "dev@dpdk.org,\n\tVipin P R <vipinp@vmware.com>,\n\tstable@dpdk.org",
        "Subject": "[PATCH 1/2] Memory Allocation: Fixes ignore_msk during find_next_n()\n in fb_array library",
        "Date": "Fri, 13 Jan 2023 13:14:28 +0000",
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    "content": "Ignore mask ignores essential bits WHICH could have been contiguous.\nThis commit aims to rectify that\n\nCc: stable@dpdk.org\n\nSigned-off-by: Vipin P R <vipinp@vmware.com>\nAcked-by: Kumara Parameshwaran <kparameshwar@vmware.com>\n---\nDepends-on: 0001-Memory-Allocation-Fixes-ms_idx-jump-lookahead-during.patch\nDepends-on: 0002-Memory-Allocation-Fixes-ms_idx-jump-lookbehind-durin.patch\n---\n lib/eal/common/eal_common_fbarray.c | 7 ++++++-\n 1 file changed, 6 insertions(+), 1 deletion(-)",
    "diff": "diff --git a/lib/eal/common/eal_common_fbarray.c b/lib/eal/common/eal_common_fbarray.c\nindex 90240e8..313681a 100644\n--- a/lib/eal/common/eal_common_fbarray.c\n+++ b/lib/eal/common/eal_common_fbarray.c\n@@ -235,7 +235,12 @@ find_next_n(const struct rte_fbarray *arr, unsigned int start, unsigned int n,\n \t\t\t\t * no runs in the space we've lookahead-scanned\n \t\t\t\t * as well, so skip that on next iteration.\n \t\t\t\t */\n-\t\t\t\tignore_msk = ~((1ULL << need) - 1);\n+\t\t\t\tif (!lookahead_msk) {\n+\t\t\t\t\t/* There aren't \"need\" number of contiguous bits anywhere in the mask. \n+\t\t\t\t\t * Ignore these many number of bits from LSB for the next iteration. \n+\t\t\t\t\t */\n+\t\t\t\t\tignore_msk = ~((1ULL << need) - 1);\n+\t\t\t\t}\n \t\t\t\tmsk_idx = lookahead_idx - 1;\n \t\t\t\tbreak;\n \t\t\t}\n",
    "prefixes": [
        "1/2"
    ]
}