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GET /api/patches/42895/?format=api
HTTP 200 OK
Allow: GET, PUT, PATCH, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "id": 42895,
    "url": "http://patches.dpdk.org/api/patches/42895/?format=api",
    "web_url": "http://patches.dpdk.org/project/dpdk/patch/b0f580d842ab3af1f005c269580b7d133936fb9b.1531345404.git.gaetan.rivet@6wind.com/",
    "project": {
        "id": 1,
        "url": "http://patches.dpdk.org/api/projects/1/?format=api",
        "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",
        "list_archive_url": "https://inbox.dpdk.org/dev",
        "list_archive_url_format": "https://inbox.dpdk.org/dev/{}",
        "commit_url_format": ""
    },
    "msgid": "<b0f580d842ab3af1f005c269580b7d133936fb9b.1531345404.git.gaetan.rivet@6wind.com>",
    "list_archive_url": "https://inbox.dpdk.org/dev/b0f580d842ab3af1f005c269580b7d133936fb9b.1531345404.git.gaetan.rivet@6wind.com",
    "date": "2018-07-11T21:44:52",
    "name": "[v11,02/25] devargs: add non-variadic parsing function",
    "commit_ref": null,
    "pull_url": null,
    "state": "accepted",
    "archived": true,
    "hash": "40a96d9f3e155fc581325fe3601ca75c6a7585c2",
    "submitter": {
        "id": 269,
        "url": "http://patches.dpdk.org/api/people/269/?format=api",
        "name": "Gaëtan Rivet",
        "email": "gaetan.rivet@6wind.com"
    },
    "delegate": null,
    "mbox": "http://patches.dpdk.org/project/dpdk/patch/b0f580d842ab3af1f005c269580b7d133936fb9b.1531345404.git.gaetan.rivet@6wind.com/mbox/",
    "series": [
        {
            "id": 533,
            "url": "http://patches.dpdk.org/api/series/533/?format=api",
            "web_url": "http://patches.dpdk.org/project/dpdk/list/?series=533",
            "date": "2018-07-11T21:44:50",
            "name": "Device querying",
            "version": 11,
            "mbox": "http://patches.dpdk.org/series/533/mbox/"
        }
    ],
    "comments": "http://patches.dpdk.org/api/patches/42895/comments/",
    "check": "success",
    "checks": "http://patches.dpdk.org/api/patches/42895/checks/",
    "tags": {},
    "related": [],
    "headers": {
        "Return-Path": "<dev-bounces@dpdk.org>",
        "X-Original-To": "patchwork@dpdk.org",
        "Delivered-To": "patchwork@dpdk.org",
        "Received": [
            "from [92.243.14.124] (localhost [127.0.0.1])\n\tby dpdk.org (Postfix) with ESMTP id 1FBF51B518;\n\tWed, 11 Jul 2018 23:45:43 +0200 (CEST)",
            "from mail-wr1-f66.google.com (mail-wr1-f66.google.com\n\t[209.85.221.66]) by dpdk.org (Postfix) with ESMTP id B165A1B50C\n\tfor <dev@dpdk.org>; Wed, 11 Jul 2018 23:45:40 +0200 (CEST)",
            "by mail-wr1-f66.google.com with SMTP id q10-v6so19598559wrd.4\n\tfor <dev@dpdk.org>; Wed, 11 Jul 2018 14:45:40 -0700 (PDT)",
            "from bidouze.dev.6wind.com. (host.78.145.23.62.rev.coltfrance.com.\n\t[62.23.145.78]) by smtp.gmail.com with ESMTPSA id\n\th5-v6sm10550936wrr.19.2018.07.11.14.45.38\n\t(version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128);\n\tWed, 11 Jul 2018 14:45:38 -0700 (PDT)"
        ],
        "DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/relaxed;\n\td=6wind-com.20150623.gappssmtp.com; s=20150623;\n\th=from:to:cc:subject:date:message-id:in-reply-to:references;\n\tbh=m7N1f6VpY+J/10HmMQ1x1n6PTG2NJKjdBCtNmpGPz2Q=;\n\tb=hh0qaVgeNbFzpbdoqPxeiYbZ5qEpcHM3PQyANp46XlYDWCqEOhWU3PlVYoEJtflLcF\n\tSIM9FS6P1EIfjPpkwoGmjne1y+GCssWjVlbc48rovIE95PeFkxJRV5RaGTQLhI7lLYOn\n\t7LVHQiwG3RzVETtLSVBo/OdnzE+A8u9ozyS1KNgEcyXW/zmc6nEwsC6gUyp8VF0lIP/v\n\ti8vflWbCPrkfzTMnw3IiSmeOG8xSMP2DXvSU0azzqamAKPPub7z2sPcLjFK8B6d90bfE\n\tpaZHXzgLjSORScu5xKECQTcChStZGuyCGh/R8GYcCTTrpYWHADt4YH8KUj7Qs0GQ0sbI\n\tuHdA==",
        "X-Google-DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/relaxed;\n\td=1e100.net; s=20161025;\n\th=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to\n\t:references;\n\tbh=m7N1f6VpY+J/10HmMQ1x1n6PTG2NJKjdBCtNmpGPz2Q=;\n\tb=uHDWFaHz6dHUl/qWtmAo8x/CaP7tBBx4rW7JccfoErlUUjCkUXR2rL8pwJgo+rLv9c\n\tRDWG/0Iy4DCE8ltHjW/aV/CvdoXusaZHvpq3PD7+pK6c8RdkgfF24crn6SpPzqhmpmr3\n\tNcB3I9QwIK5uzmKP5FnBS+nVvpyFTn7gUxfTaWbn3fc+a0taLq3Xhtq/3IkxBWpd8118\n\tKIxbW+zWf+J8hFbWl2RUfnKE2osIy4cB18wPHXq+Ur1fjL0jTBwnDDgkwIN2du6LtwiI\n\tqR85uWIXiWieIhtIIPNmg4C6NQqzBTNaTBcEEI7IcrQDS7pgt+n03uKnwXtNx9insbs0\n\t4rXg==",
        "X-Gm-Message-State": "AOUpUlH6yyUVea8eoQP6i2Y0Uv9RVd0rei3Jj/l6te0KchPWEpfPEQiW\n\tjc5OQBSOmyxWrogWHdWPwrkkxWER",
        "X-Google-Smtp-Source": "AAOMgpcdq1lA22YFvN6rDTD3LTqVJoSUaiWWo2b3JSdueY7yFMZ43ZI0flmoIq/60n4VazmNG3Rxzg==",
        "X-Received": "by 2002:adf:c891:: with SMTP id\n\tk17-v6mr248153wrh.6.1531345539996; \n\tWed, 11 Jul 2018 14:45:39 -0700 (PDT)",
        "From": "Gaetan Rivet <gaetan.rivet@6wind.com>",
        "To": "dev@dpdk.org",
        "Cc": "Gaetan Rivet <gaetan.rivet@6wind.com>",
        "Date": "Wed, 11 Jul 2018 23:44:52 +0200",
        "Message-Id": "<b0f580d842ab3af1f005c269580b7d133936fb9b.1531345404.git.gaetan.rivet@6wind.com>",
        "X-Mailer": "git-send-email 2.18.0",
        "In-Reply-To": "<cover.1531345404.git.gaetan.rivet@6wind.com>",
        "References": "<cover.1531345404.git.gaetan.rivet@6wind.com>",
        "Subject": "[dpdk-dev] [PATCH v11 02/25] devargs: add non-variadic parsing\n\tfunction",
        "X-BeenThere": "dev@dpdk.org",
        "X-Mailman-Version": "2.1.15",
        "Precedence": "list",
        "List-Id": "DPDK patches and discussions <dev.dpdk.org>",
        "List-Unsubscribe": "<https://mails.dpdk.org/options/dev>,\n\t<mailto:dev-request@dpdk.org?subject=unsubscribe>",
        "List-Archive": "<http://mails.dpdk.org/archives/dev/>",
        "List-Post": "<mailto:dev@dpdk.org>",
        "List-Help": "<mailto:dev-request@dpdk.org?subject=help>",
        "List-Subscribe": "<https://mails.dpdk.org/listinfo/dev>,\n\t<mailto:dev-request@dpdk.org?subject=subscribe>",
        "Errors-To": "dev-bounces@dpdk.org",
        "Sender": "\"dev\" <dev-bounces@dpdk.org>"
    },
    "content": "rte_devargs_parse becomes non-variadic,\nrte_devargs_parsef becomes the variadic version, to be used to compose\ndevice strings.\n\nSigned-off-by: Gaetan Rivet <gaetan.rivet@6wind.com>\nAcked-by: Shreyansh Jain <shreyansh.jain@nxp.com>\nAcked-by: Thomas Monjalon <thomas@monjalon.net>\n---\n drivers/net/failsafe/failsafe_args.c        |  2 +-\n drivers/net/failsafe/failsafe_eal.c         |  2 +-\n lib/librte_eal/common/eal_common_dev.c      |  4 +-\n lib/librte_eal/common/eal_common_devargs.c  | 42 ++++++++++++++++-----\n lib/librte_eal/common/include/rte_devargs.h | 40 +++++++++++++++++++-\n lib/librte_eal/rte_eal_version.map          |  1 +\n lib/librte_ethdev/rte_ethdev.c              |  2 +-\n 7 files changed, 76 insertions(+), 17 deletions(-)",
    "diff": "diff --git a/drivers/net/failsafe/failsafe_args.c b/drivers/net/failsafe/failsafe_args.c\nindex 2c002b164..626883ce2 100644\n--- a/drivers/net/failsafe/failsafe_args.c\n+++ b/drivers/net/failsafe/failsafe_args.c\n@@ -63,7 +63,7 @@ fs_parse_device(struct sub_device *sdev, char *args)\n \n \td = &sdev->devargs;\n \tDEBUG(\"%s\", args);\n-\tret = rte_devargs_parse(d, \"%s\", args);\n+\tret = rte_devargs_parse(d, args);\n \tif (ret) {\n \t\tDEBUG(\"devargs parsing failed with code %d\", ret);\n \t\treturn ret;\ndiff --git a/drivers/net/failsafe/failsafe_eal.c b/drivers/net/failsafe/failsafe_eal.c\nindex 5672f3961..ce1633f13 100644\n--- a/drivers/net/failsafe/failsafe_eal.c\n+++ b/drivers/net/failsafe/failsafe_eal.c\n@@ -86,7 +86,7 @@ fs_bus_init(struct rte_eth_dev *dev)\n \t\t\telse\n \t\t\t\tsnprintf(devstr, sizeof(devstr), \"%s\",\n \t\t\t\t\t rte_eth_devices[pid].device->name);\n-\t\t\tret = rte_devargs_parse(da, \"%s\", devstr);\n+\t\t\tret = rte_devargs_parse(da, devstr);\n \t\t\tif (ret) {\n \t\t\t\tERROR(\"Probed devargs parsing failed with code\"\n \t\t\t\t      \" %d\", ret);\ndiff --git a/lib/librte_eal/common/eal_common_dev.c b/lib/librte_eal/common/eal_common_dev.c\nindex 61cb3b162..ce4b51469 100644\n--- a/lib/librte_eal/common/eal_common_dev.c\n+++ b/lib/librte_eal/common/eal_common_dev.c\n@@ -138,8 +138,8 @@ int __rte_experimental rte_eal_hotplug_add(const char *busname, const char *devn\n \tif (da == NULL)\n \t\treturn -ENOMEM;\n \n-\tret = rte_devargs_parse(da, \"%s:%s,%s\",\n-\t\t\t\t    busname, devname, devargs);\n+\tret = rte_devargs_parsef(da, \"%s:%s,%s\",\n+\t\t\t\t busname, devname, devargs);\n \tif (ret)\n \t\tgoto err_devarg;\n \ndiff --git a/lib/librte_eal/common/eal_common_devargs.c b/lib/librte_eal/common/eal_common_devargs.c\nindex 894749e40..f84f3d2cf 100644\n--- a/lib/librte_eal/common/eal_common_devargs.c\n+++ b/lib/librte_eal/common/eal_common_devargs.c\n@@ -63,24 +63,18 @@ bus_name_cmp(const struct rte_bus *bus, const void *name)\n \treturn strncmp(bus->name, name, strlen(bus->name));\n }\n \n-int __rte_experimental\n-rte_devargs_parse(struct rte_devargs *da, const char *format, ...)\n+__rte_experimental\n+int\n+rte_devargs_parse(struct rte_devargs *da, const char *dev)\n {\n \tstruct rte_bus *bus = NULL;\n-\tva_list ap;\n-\tva_start(ap, format);\n-\tchar dev[vsnprintf(NULL, 0, format, ap) + 1];\n \tconst char *devname;\n \tconst size_t maxlen = sizeof(da->name);\n \tsize_t i;\n \n-\tva_end(ap);\n \tif (da == NULL)\n \t\treturn -EINVAL;\n \n-\tva_start(ap, format);\n-\tvsnprintf(dev, sizeof(dev), format, ap);\n-\tva_end(ap);\n \t/* Retrieve eventual bus info */\n \tdo {\n \t\tdevname = dev;\n@@ -125,6 +119,34 @@ rte_devargs_parse(struct rte_devargs *da, const char *format, ...)\n \treturn 0;\n }\n \n+__rte_experimental\n+int\n+rte_devargs_parsef(struct rte_devargs *da, const char *format, ...)\n+{\n+\tva_list ap;\n+\tsize_t len;\n+\tchar *dev;\n+\n+\tif (da == NULL)\n+\t\treturn -EINVAL;\n+\n+\tva_start(ap, format);\n+\tlen = vsnprintf(NULL, 0, format, ap);\n+\tva_end(ap);\n+\n+\tdev = calloc(1, len + 1);\n+\tif (dev == NULL) {\n+\t\tRTE_LOG(ERR, EAL, \"not enough memory to parse device\\n\");\n+\t\treturn -ENOMEM;\n+\t}\n+\n+\tva_start(ap, format);\n+\tvsnprintf(dev, len, format, ap);\n+\tva_end(ap);\n+\n+\treturn rte_devargs_parse(da, dev);\n+}\n+\n int __rte_experimental\n rte_devargs_insert(struct rte_devargs *da)\n {\n@@ -151,7 +173,7 @@ rte_devargs_add(enum rte_devtype devtype, const char *devargs_str)\n \tif (devargs == NULL)\n \t\tgoto fail;\n \n-\tif (rte_devargs_parse(devargs, \"%s\", dev))\n+\tif (rte_devargs_parse(devargs, dev))\n \t\tgoto fail;\n \tdevargs->type = devtype;\n \tbus = devargs->bus;\ndiff --git a/lib/librte_eal/common/include/rte_devargs.h b/lib/librte_eal/common/include/rte_devargs.h\nindex 58fbd90a2..6c3b6326b 100644\n--- a/lib/librte_eal/common/include/rte_devargs.h\n+++ b/lib/librte_eal/common/include/rte_devargs.h\n@@ -89,6 +89,42 @@ __rte_deprecated\n int rte_eal_parse_devargs_str(const char *devargs_str,\n \t\t\t\tchar **drvname, char **drvargs);\n \n+/**\n+ * Parse a device string.\n+ *\n+ * Verify that a bus is capable of handling the device passed\n+ * in argument. Store which bus will handle the device, its name\n+ * and the eventual device parameters.\n+ *\n+ * The syntax is:\n+ *\n+ *     bus:device_identifier,arg1=val1,arg2=val2\n+ *\n+ * where \"bus:\" is the bus name followed by any character separator.\n+ * The bus name is optional. If no bus name is specified, each bus\n+ * will attempt to recognize the device identifier. The first one\n+ * to succeed will be used.\n+ *\n+ * Examples:\n+ *\n+ *     pci:0000:05.00.0,arg=val\n+ *     05.00.0,arg=val\n+ *     vdev:net_ring0\n+ *\n+ * @param da\n+ *   The devargs structure holding the device information.\n+ *\n+ * @param dev\n+ *   String describing a device.\n+ *\n+ * @return\n+ *   - 0 on success.\n+ *   - Negative errno on error.\n+ */\n+__rte_experimental\n+int\n+rte_devargs_parse(struct rte_devargs *da, const char *dev);\n+\n /**\n  * Parse a device string.\n  *\n@@ -124,8 +160,8 @@ int rte_eal_parse_devargs_str(const char *devargs_str,\n  */\n __rte_experimental\n int\n-rte_devargs_parse(struct rte_devargs *da,\n-\t\t  const char *format, ...)\n+rte_devargs_parsef(struct rte_devargs *da,\n+\t\t   const char *format, ...)\n __attribute__((format(printf, 2, 0)));\n \n /**\ndiff --git a/lib/librte_eal/rte_eal_version.map b/lib/librte_eal/rte_eal_version.map\nindex f7dd0e7bc..1c4db72fa 100644\n--- a/lib/librte_eal/rte_eal_version.map\n+++ b/lib/librte_eal/rte_eal_version.map\n@@ -254,6 +254,7 @@ EXPERIMENTAL {\n \trte_devargs_insert;\n \trte_devargs_next;\n \trte_devargs_parse;\n+\trte_devargs_parsef;\n \trte_devargs_remove;\n \trte_devargs_type_count;\n \trte_eal_cleanup;\ndiff --git a/lib/librte_ethdev/rte_ethdev.c b/lib/librte_ethdev/rte_ethdev.c\nindex 16b8258a7..98e089e58 100644\n--- a/lib/librte_ethdev/rte_ethdev.c\n+++ b/lib/librte_ethdev/rte_ethdev.c\n@@ -658,7 +658,7 @@ rte_eth_dev_attach(const char *devargs, uint16_t *port_id)\n \t}\n \n \t/* parse devargs */\n-\tif (rte_devargs_parse(&da, \"%s\", devargs))\n+\tif (rte_devargs_parse(&da, devargs))\n \t\tgoto err;\n \n \tret = rte_eal_hotplug_add(da.bus->name, da.name, da.args);\n",
    "prefixes": [
        "v11",
        "02/25"
    ]
}