[dpdk-dev] [PATCH v3 14/28] eal/pci: Add rte_eal_devargs_remove

[Tetsuya Mukawa <mukawa@igel.co.jp>]

The function removes a specified devargs from devargs_list.

Signed-off-by: Tetsuya Mukawa <mukawa@igel.co.jp>
---
 lib/librte_eal/common/eal_common_devargs.c  | 16 ++++++++++++++++
 lib/librte_eal/common/include/rte_devargs.h | 18 ++++++++++++++++++
 2 files changed, 34 insertions(+)

diff --git a/lib/librte_eal/common/eal_common_devargs.c b/lib/librte_eal/common/eal_common_devargs.c
index f95a12d..5fd2a2c 100644
--- a/lib/librte_eal/common/eal_common_devargs.c
+++ b/lib/librte_eal/common/eal_common_devargs.c
@@ -140,6 +140,22 @@ rte_eal_devargs_add(enum rte_devtype devtype, const char *devargs_str)
 	return 0;
 }
 
+/* remove it from the devargs_list */
+void
+rte_eal_devargs_remove(enum rte_devtype devtype, void *args)
+{
+	struct rte_devargs *devargs;
+
+	if (args == NULL)
+		return;
+
+	devargs = rte_eal_devargs_find(devtype, args);
+	if (devargs == NULL)
+		return;
+
+	TAILQ_REMOVE(&devargs_list, devargs, next);
+}
+
 /* count the number of devices of a specified type */
 unsigned int
 rte_eal_devargs_type_count(enum rte_devtype devtype)
diff --git a/lib/librte_eal/common/include/rte_devargs.h b/lib/librte_eal/common/include/rte_devargs.h
index 9f9c98f..1066efd 100644
--- a/lib/librte_eal/common/include/rte_devargs.h
+++ b/lib/librte_eal/common/include/rte_devargs.h
@@ -123,6 +123,24 @@ extern struct rte_devargs_list devargs_list;
 int rte_eal_devargs_add(enum rte_devtype devtype, const char *devargs_str);
 
 /**
+ * Remove a device from the user device list
+ *
+ * For PCI devices, the format of arguments string is "PCI_ADDR". It shouldn't
+ * involves parameters for the device. Example: "08:00.1".
+ *
+ * For virtual devices, the format of arguments string is "DRIVER_NAME*". It
+ * shouldn't involves parameters for the device. Example: "eth_ring". The
+ * validity of the driver name is not checked by this function, it is done
+ * when closing the drivers.
+ *
+ * @param devtype
+ *   The type of the device.
+ * @param name
+ *   The name of the device.
+ */
+void rte_eal_devargs_remove(enum rte_devtype devtype, void *args);
+
+/**
  * Count the number of user devices of a specified type
  *
  * @param devtype
-- 
1.9.1