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{
    "id": 2219168,
    "url": "http://patchwork.ozlabs.org/api/1.0/patches/2219168/?format=api",
    "project": {
        "id": 12,
        "url": "http://patchwork.ozlabs.org/api/1.0/projects/12/?format=api",
        "name": "Linux CIFS Client",
        "link_name": "linux-cifs-client",
        "list_id": "linux-cifs.vger.kernel.org",
        "list_email": "linux-cifs@vger.kernel.org",
        "web_url": "",
        "scm_url": "",
        "webscm_url": ""
    },
    "msgid": "<20260402141839.461257-7-huiwen.he@linux.dev>",
    "date": "2026-04-02T14:18:32",
    "name": "[v3,06/13] smb/client: check if ntstatus_to_dos_map is sorted",
    "commit_ref": null,
    "pull_url": null,
    "state": "new",
    "archived": false,
    "hash": "95031318ab772ccffa9d00e3429fb6558c61314f",
    "submitter": {
        "id": 93029,
        "url": "http://patchwork.ozlabs.org/api/1.0/people/93029/?format=api",
        "name": null,
        "email": "huiwen.he@linux.dev"
    },
    "delegate": null,
    "mbox": "http://patchwork.ozlabs.org/project/linux-cifs-client/patch/20260402141839.461257-7-huiwen.he@linux.dev/mbox/",
    "series": [
        {
            "id": 498490,
            "url": "http://patchwork.ozlabs.org/api/1.0/series/498490/?format=api",
            "date": "2026-04-02T14:18:28",
            "name": "smb: improve search speed of SMB1 maperror",
            "version": 3,
            "mbox": "http://patchwork.ozlabs.org/series/498490/mbox/"
        }
    ],
    "check": "pending",
    "checks": "http://patchwork.ozlabs.org/api/patches/2219168/checks/",
    "tags": {},
    "headers": {
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        "From": "huiwen.he@linux.dev",
        "To": "smfrench@gmail.com,\n\tlinkinjeon@kernel.org,\n\tdhowells@redhat.com,\n\tchenxiaosong@kylinos.cn,\n\tchenxiaosong@chenxiaosong.com,\n\ttangyouling@kylinos.cn",
        "Cc": "linux-cifs@vger.kernel.org",
        "Subject": "[PATCH v3 06/13] smb/client: check if ntstatus_to_dos_map is sorted",
        "Date": "Thu,  2 Apr 2026 14:18:32 +0000",
        "Message-ID": "<20260402141839.461257-7-huiwen.he@linux.dev>",
        "In-Reply-To": "<20260402141839.461257-1-huiwen.he@linux.dev>",
        "References": "<20260402141839.461257-1-huiwen.he@linux.dev>",
        "Precedence": "bulk",
        "X-Mailing-List": "linux-cifs@vger.kernel.org",
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    },
    "content": "From: Youling Tang <tangyouling@kylinos.cn>\n\nAlthough the array is sorted at build time, verify the ordering again\nwhen cifs.ko is loaded to avoid potential regressions introduced by\nfuture script changes.\n\nWe are going to define 3 functions to check the sort results, introduce the\nmacro DEFINE_CHECK_SORT_FUNC() to reduce duplicate code.\n\nSigned-off-by: Youling Tang <tangyouling@kylinos.cn>\nReviewed-by: ChenXiaoSong <chenxiaosong@kylinos.cn>\n---\n fs/smb/client/cifsfs.c       |  6 ++++++\n fs/smb/client/smb1maperror.c | 32 ++++++++++++++++++++++++++++++++\n fs/smb/client/smb1proto.h    |  1 +\n 3 files changed, 39 insertions(+)",
    "diff": "diff --git a/fs/smb/client/cifsfs.c b/fs/smb/client/cifsfs.c\nindex f4bed8d4a072..0541706c36c5 100644\n--- a/fs/smb/client/cifsfs.c\n+++ b/fs/smb/client/cifsfs.c\n@@ -1915,6 +1915,12 @@ init_cifs(void)\n {\n \tint rc = 0;\n \n+#ifdef CONFIG_CIFS_ALLOW_INSECURE_LEGACY\n+\trc = smb1_init_maperror();\n+\tif (rc)\n+\t\treturn rc;\n+#endif /* CONFIG_CIFS_ALLOW_INSECURE_LEGACY */\n+\n \trc = smb2_init_maperror();\n \tif (rc)\n \t\treturn rc;\ndiff --git a/fs/smb/client/smb1maperror.c b/fs/smb/client/smb1maperror.c\nindex fb985d2fc0d9..66ceebbe535e 100644\n--- a/fs/smb/client/smb1maperror.c\n+++ b/fs/smb/client/smb1maperror.c\n@@ -256,3 +256,35 @@ map_and_check_smb_error(struct TCP_Server_Info *server,\n \n \treturn rc;\n }\n+\n+#define DEFINE_CHECK_SORT_FUNC(__array, __field)\t\t\t\\\n+static int __init __array ## _is_sorted(void)\t\t\t\t\\\n+{\t\t\t\t\t\t\t\t\t\\\n+\tunsigned int i;\t\t\t\t\t\t\t\\\n+\t\t\t\t\t\t\t\t\t\\\n+\t/* Check whether the array is sorted in ascending order */\t\\\n+\tfor (i = 1; i < ARRAY_SIZE(__array); i++) {\t\t\t\\\n+\t\tif (__array[i].__field >=\t\t\t\t\\\n+\t\t    __array[i - 1].__field)\t\t\t\t\\\n+\t\t\tcontinue;\t\t\t\t\t\\\n+\t\t\t\t\t\t\t\t\t\\\n+\t\tpr_err(#__array \" array order is incorrect\\n\");\t\t\\\n+\t\treturn -EINVAL;\t\t\t\t\t\t\\\n+\t}\t\t\t\t\t\t\t\t\\\n+\t\t\t\t\t\t\t\t\t\\\n+\treturn 0;\t\t\t\t\t\t\t\\\n+}\n+\n+/* ntstatus_to_dos_map_is_sorted */\n+DEFINE_CHECK_SORT_FUNC(ntstatus_to_dos_map, ntstatus);\n+\n+int __init smb1_init_maperror(void)\n+{\n+\tint rc;\n+\n+\trc = ntstatus_to_dos_map_is_sorted();\n+\tif (rc)\n+\t\treturn rc;\n+\n+\treturn rc;\n+}\ndiff --git a/fs/smb/client/smb1proto.h b/fs/smb/client/smb1proto.h\nindex 42569bbcf6fd..dd98d04e837a 100644\n--- a/fs/smb/client/smb1proto.h\n+++ b/fs/smb/client/smb1proto.h\n@@ -234,6 +234,7 @@ int cifs_verify_signature(struct smb_rqst *rqst,\n  * smb1maperror.c\n  */\n int map_smb_to_linux_error(char *buf, bool logErr);\n+int smb1_init_maperror(void);\n int map_and_check_smb_error(struct TCP_Server_Info *server,\n \t\t\t    struct mid_q_entry *mid, bool logErr);\n \n",
    "prefixes": [
        "v3",
        "06/13"
    ]
}