[dpdk-dev] [PATCH v2 08/18] devargs: make devargs list private

[Gaetan Rivet]

Initially, rte_devargs was meant to be populated once and sometimes
accessed, then never emptied.

With the new hotplug functionality having better standing, new usage
appeared with repeated addition of devices and their subsequent removal.

Exposing devargs_list pushed bus drivers and libraries to be careless
and inconsistent in their memory management. Making it private will
allow to rationalize this part of the EAL and ensure that fewer memory
leaks occur during operations.

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      | 3 +++
 lib/librte_eal/common/include/rte_devargs.h     | 6 ------
 lib/librte_eal/linuxapp/eal/rte_eal_version.map | 1 -
 4 files changed, 3 insertions(+), 8 deletions(-)

diff --git a/lib/librte_eal/bsdapp/eal/rte_eal_version.map b/lib/librte_eal/bsdapp/eal/rte_eal_version.map
index 01ae0c7..0d693c8 100644
--- a/lib/librte_eal/bsdapp/eal/rte_eal_version.map
+++ b/lib/librte_eal/bsdapp/eal/rte_eal_version.map
@@ -2,7 +2,6 @@ DPDK_2.0 {
 	global:
 
 	__rte_panic;
-	devargs_list;
 	eal_parse_sysfs_value;
 	eal_timer_source;
 	lcore_config;
diff --git a/lib/librte_eal/common/eal_common_devargs.c b/lib/librte_eal/common/eal_common_devargs.c
index 614f1c5..0f81f22 100644
--- a/lib/librte_eal/common/eal_common_devargs.c
+++ b/lib/librte_eal/common/eal_common_devargs.c
@@ -45,6 +45,9 @@
 #include <rte_tailq.h>
 #include "eal_private.h"
 
+/** user device double-linked queue type definition */
+TAILQ_HEAD(rte_devargs_list, rte_devargs);
+
 /** Global list of user devices */
 struct rte_devargs_list devargs_list =
 	TAILQ_HEAD_INITIALIZER(devargs_list);
diff --git a/lib/librte_eal/common/include/rte_devargs.h b/lib/librte_eal/common/include/rte_devargs.h
index 6222677..5f4ad33 100644
--- a/lib/librte_eal/common/include/rte_devargs.h
+++ b/lib/librte_eal/common/include/rte_devargs.h
@@ -73,12 +73,6 @@ struct rte_devargs {
 	char *args;
 };
 
-/** user device double-linked queue type definition */
-TAILQ_HEAD(rte_devargs_list, rte_devargs);
-
-/** Global list of user devices */
-extern struct rte_devargs_list devargs_list;
-
 /**
  * Parse a devargs string.
  *
diff --git a/lib/librte_eal/linuxapp/eal/rte_eal_version.map b/lib/librte_eal/linuxapp/eal/rte_eal_version.map
index 576de56..9c0251e 100644
--- a/lib/librte_eal/linuxapp/eal/rte_eal_version.map
+++ b/lib/librte_eal/linuxapp/eal/rte_eal_version.map
@@ -2,7 +2,6 @@ DPDK_2.0 {
 	global:
 
 	__rte_panic;
-	devargs_list;
 	eal_parse_sysfs_value;
 	eal_timer_source;
 	lcore_config;
-- 
2.1.4