[dpdk-dev] [PATCH v4 18/19] devargs: remove function

[Gaetan Rivet]

This function is now necessary due to the new unplug rte_bus API.

Signed-off-by: Gaetan Rivet <gaetan.rivet at 6wind.com>
---
 lib/librte_eal/bsdapp/eal/rte_eal_version.map   |  1 +
 lib/librte_eal/common/eal_common_devargs.c      | 18 ++++++++++++++++++
 lib/librte_eal/common/include/rte_devargs.h     | 14 ++++++++++++++
 lib/librte_eal/linuxapp/eal/rte_eal_version.map |  1 +
 4 files changed, 34 insertions(+)

diff --git a/lib/librte_eal/bsdapp/eal/rte_eal_version.map b/lib/librte_eal/bsdapp/eal/rte_eal_version.map
index a506968..d069de0 100644
--- a/lib/librte_eal/bsdapp/eal/rte_eal_version.map
+++ b/lib/librte_eal/bsdapp/eal/rte_eal_version.map
@@ -204,5 +204,6 @@ DPDK_17.08 {
 	rte_bus_from_name;
 	rte_bus_from_dev;
 	rte_eal_devargs_clone;
+	rte_eal_devargs_rmv;
 
 } DPDK_17.05;
diff --git a/lib/librte_eal/common/eal_common_devargs.c b/lib/librte_eal/common/eal_common_devargs.c
index 07b89ef..1a6a67f 100644
--- a/lib/librte_eal/common/eal_common_devargs.c
+++ b/lib/librte_eal/common/eal_common_devargs.c
@@ -183,6 +183,24 @@ rte_eal_devargs_add(enum rte_devtype devtype, const char *devargs_str)
 	return -1;
 }
 
+/* Remove and free an rte_devargs. */
+int
+rte_eal_devargs_rmv(struct rte_devargs *da)
+{
+	struct rte_devargs *d;
+	void *tmp;
+
+	TAILQ_FOREACH_SAFE(d, &devargs_list, next, tmp) {
+		if (d == da) {
+			TAILQ_REMOVE(&devargs_list, d, next);
+			free(d->args);
+			free(d);
+			return 0;
+		}
+	}
+	return 1;
+}
+
 /* Deep-copy of an rte_devargs. */
 struct rte_devargs *
 rte_eal_devargs_clone(struct rte_devargs *da)
diff --git a/lib/librte_eal/common/include/rte_devargs.h b/lib/librte_eal/common/include/rte_devargs.h
index 892b035..f61707c 100644
--- a/lib/librte_eal/common/include/rte_devargs.h
+++ b/lib/librte_eal/common/include/rte_devargs.h
@@ -163,6 +163,20 @@ rte_eal_devargs_parse(const char *dev,
 int rte_eal_devargs_add(enum rte_devtype devtype, const char *devargs_str);
 
 /**
+ * Remove a device from the user device list.
+ * The devargs is then freed.
+ *
+ * @param da
+ *   devargs to remove.
+ *
+ * @return
+ *   0 on success.
+ *   <0 on error.
+ *   >0 if the devargs was not within the user device list.
+ */
+int rte_eal_devargs_rmv(struct rte_devargs *da);
+
+/**
  * Deep copy an rte_devargs.
  *
  * @param da
diff --git a/lib/librte_eal/linuxapp/eal/rte_eal_version.map b/lib/librte_eal/linuxapp/eal/rte_eal_version.map
index 6e6638a..19eec05 100644
--- a/lib/librte_eal/linuxapp/eal/rte_eal_version.map
+++ b/lib/librte_eal/linuxapp/eal/rte_eal_version.map
@@ -208,5 +208,6 @@ DPDK_17.08 {
 	rte_bus_from_name;
 	rte_bus_from_dev;
 	rte_eal_devargs_clone;
+	rte_eal_devargs_rmv;
 
 } DPDK_17.05;
-- 
2.1.4