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GET /api/1.2/patches/800471/?format=api
HTTP 200 OK
Allow: GET, PUT, PATCH, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "id": 800471,
    "url": "http://patchwork.ozlabs.org/api/1.2/patches/800471/?format=api",
    "web_url": "http://patchwork.ozlabs.org/project/uboot/patch/1502441568-22896-2-git-send-email-pantelis.antoniou@konsulko.com/",
    "project": {
        "id": 18,
        "url": "http://patchwork.ozlabs.org/api/1.2/projects/18/?format=api",
        "name": "U-Boot",
        "link_name": "uboot",
        "list_id": "u-boot.lists.denx.de",
        "list_email": "u-boot@lists.denx.de",
        "web_url": null,
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        "webscm_url": null,
        "list_archive_url": "",
        "list_archive_url_format": "",
        "commit_url_format": ""
    },
    "msgid": "<1502441568-22896-2-git-send-email-pantelis.antoniou@konsulko.com>",
    "list_archive_url": null,
    "date": "2017-08-11T08:52:39",
    "name": "[U-Boot,v2,01/10] Introduce fdt_setprop_placeholder() method",
    "commit_ref": null,
    "pull_url": null,
    "state": "superseded",
    "archived": false,
    "hash": "0790ffa17aec2c0465e8a17fbac08362dfc3be5b",
    "submitter": {
        "id": 64098,
        "url": "http://patchwork.ozlabs.org/api/1.2/people/64098/?format=api",
        "name": "Pantelis Antoniou",
        "email": "pantelis.antoniou@konsulko.com"
    },
    "delegate": {
        "id": 3184,
        "url": "http://patchwork.ozlabs.org/api/1.2/users/3184/?format=api",
        "username": "sjg",
        "first_name": "Simon",
        "last_name": "Glass",
        "email": "sjg@chromium.org"
    },
    "mbox": "http://patchwork.ozlabs.org/project/uboot/patch/1502441568-22896-2-git-send-email-pantelis.antoniou@konsulko.com/mbox/",
    "series": [],
    "comments": "http://patchwork.ozlabs.org/api/patches/800471/comments/",
    "check": "pending",
    "checks": "http://patchwork.ozlabs.org/api/patches/800471/checks/",
    "tags": {},
    "related": [],
    "headers": {
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        "X-Received": "by 10.223.161.133 with SMTP id u5mr11654747wru.191.1502441737329;\n\tFri, 11 Aug 2017 01:55:37 -0700 (PDT)",
        "From": "Pantelis Antoniou <pantelis.antoniou@konsulko.com>",
        "To": "Tom Rini <trini@konsulko.com>",
        "Date": "Fri, 11 Aug 2017 11:52:39 +0300",
        "Message-Id": "<1502441568-22896-2-git-send-email-pantelis.antoniou@konsulko.com>",
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        "In-Reply-To": "<1502441568-22896-1-git-send-email-pantelis.antoniou@konsulko.com>",
        "References": "<1502441568-22896-1-git-send-email-pantelis.antoniou@konsulko.com>",
        "Cc": "Marek Vasut <marex@denx.de>,\n\tPantelis Antoniou <pantelis.antoniou@konsulko.com>,\n\tTero Kristo <t-kristo@ti.com>, u-boot@lists.denx.de,\n\tMaxime Ripard <maxime.ripard@free-electrons.com>,\n\tStefan Roese <sr@denx.de>, Alan Ott <alan@signal11.us>,\n\tDavid Gibson <david@gibson.dropbear.id.au>",
        "Subject": "[U-Boot] [PATCH v2 01/10] Introduce fdt_setprop_placeholder() method",
        "X-BeenThere": "u-boot@lists.denx.de",
        "X-Mailman-Version": "2.1.18",
        "Precedence": "list",
        "List-Id": "U-Boot discussion <u-boot.lists.denx.de>",
        "List-Unsubscribe": "<https://lists.denx.de/options/u-boot>,\n\t<mailto:u-boot-request@lists.denx.de?subject=unsubscribe>",
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        "MIME-Version": "1.0",
        "Content-Type": "text/plain; charset=\"utf-8\"",
        "Content-Transfer-Encoding": "base64",
        "Errors-To": "u-boot-bounces@lists.denx.de",
        "Sender": "\"U-Boot\" <u-boot-bounces@lists.denx.de>"
    },
    "content": "In some cases you need to add a property but the contents of it\nare not known at creation time, merely the extend of it.\n\nThis method allows you to create a property of a given size (filled\nwith garbage) while a pointer to the property data will be provided.\n\nSigned-off-by: Pantelis Antoniou <pantelis.antoniou@konsulko.com>\n[dwg: Corrected commit message]\nSigned-off-by: David Gibson <david@gibson.dropbear.id.au>\n---\n lib/libfdt/fdt_rw.c | 20 +++++++++++++++++---\n lib/libfdt/libfdt.h | 31 +++++++++++++++++++++++++++++++\n 2 files changed, 48 insertions(+), 3 deletions(-)",
    "diff": "diff --git a/lib/libfdt/fdt_rw.c b/lib/libfdt/fdt_rw.c\nindex 80a3212..3dc7752 100644\n--- a/lib/libfdt/fdt_rw.c\n+++ b/lib/libfdt/fdt_rw.c\n@@ -228,8 +228,8 @@ int fdt_set_name(void *fdt, int nodeoffset, const char *name)\n \treturn 0;\n }\n \n-int fdt_setprop(void *fdt, int nodeoffset, const char *name,\n-\t\tconst void *val, int len)\n+int fdt_setprop_placeholder(void *fdt, int nodeoffset, const char *name,\n+\t\t\t    int len, void **prop_data)\n {\n \tstruct fdt_property *prop;\n \tint err;\n@@ -242,8 +242,22 @@ int fdt_setprop(void *fdt, int nodeoffset, const char *name,\n \tif (err)\n \t\treturn err;\n \n+\t*prop_data = prop->data;\n+\treturn 0;\n+}\n+\n+int fdt_setprop(void *fdt, int nodeoffset, const char *name,\n+\t\tconst void *val, int len)\n+{\n+\tvoid *prop_data;\n+\tint err;\n+\n+\terr = fdt_setprop_placeholder(fdt, nodeoffset, name, len, &prop_data);\n+\tif (err)\n+\t\treturn err;\n+\n \tif (len)\n-\t\tmemcpy(prop->data, val, len);\n+\t\tmemcpy(prop_data, val, len);\n \treturn 0;\n }\n \ndiff --git a/lib/libfdt/libfdt.h b/lib/libfdt/libfdt.h\nindex f3f9cad..6af94cb 100644\n--- a/lib/libfdt/libfdt.h\n+++ b/lib/libfdt/libfdt.h\n@@ -1405,6 +1405,37 @@ int fdt_setprop(void *fdt, int nodeoffset, const char *name,\n \t\tconst void *val, int len);\n \n /**\n+ * fdt_setprop _placeholder - allocate space for a property\n+ * @fdt: pointer to the device tree blob\n+ * @nodeoffset: offset of the node whose property to change\n+ * @name: name of the property to change\n+ * @len: length of the property value\n+ * @prop_data: return pointer to property data\n+ *\n+ * fdt_setprop_placeholer() allocates the named property in the given node.\n+ * If the property exists it is resized. In either case a pointer to the\n+ * property data is returned.\n+ *\n+ * This function may insert or delete data from the blob, and will\n+ * therefore change the offsets of some existing nodes.\n+ *\n+ * returns:\n+ *\t0, on success\n+ *\t-FDT_ERR_NOSPACE, there is insufficient free space in the blob to\n+ *\t\tcontain the new property value\n+ *\t-FDT_ERR_BADOFFSET, nodeoffset did not point to FDT_BEGIN_NODE tag\n+ *\t-FDT_ERR_BADLAYOUT,\n+ *\t-FDT_ERR_BADMAGIC,\n+ *\t-FDT_ERR_BADVERSION,\n+ *\t-FDT_ERR_BADSTATE,\n+ *\t-FDT_ERR_BADSTRUCTURE,\n+ *\t-FDT_ERR_BADLAYOUT,\n+ *\t-FDT_ERR_TRUNCATED, standard meanings\n+ */\n+int fdt_setprop_placeholder(void *fdt, int nodeoffset, const char *name,\n+\t\t\t    int len, void **prop_data);\n+\n+/**\n  * fdt_setprop_u32 - set a property to a 32-bit integer\n  * @fdt: pointer to the device tree blob\n  * @nodeoffset: offset of the node whose property to change\n",
    "prefixes": [
        "U-Boot",
        "v2",
        "01/10"
    ]
}