[dpdk-dev] [PATCH] bus/vdev: fix device argument corrupt after bus scan
Qi Zhang
qi.z.zhang at intel.com
Thu Oct 25 05:30:36 CEST 2018
It's not necessary to insert device argment to devargs_list
during bus scan, but this happens when we try to attach a
device on secondary process. The patch fix the issue.
Fixes: cdb068f031c6 ("bus/vdev: scan by multi-process channel")
Cc: stable at dpdk.org
Signed-off-by: Qi Zhang <qi.z.zhang at intel.com>
---
drivers/bus/vdev/vdev.c | 11 +++++++----
1 file changed, 7 insertions(+), 4 deletions(-)
diff --git a/drivers/bus/vdev/vdev.c b/drivers/bus/vdev/vdev.c
index 688e31c21..818a2bfc2 100644
--- a/drivers/bus/vdev/vdev.c
+++ b/drivers/bus/vdev/vdev.c
@@ -202,7 +202,9 @@ alloc_devargs(const char *name, const char *args)
}
static int
-insert_vdev(const char *name, const char *args, struct rte_vdev_device **p_dev)
+insert_vdev(const char *name, const char *args,
+ struct rte_vdev_device **p_dev,
+ bool init)
{
struct rte_vdev_device *dev;
struct rte_devargs *devargs;
@@ -237,7 +239,8 @@ insert_vdev(const char *name, const char *args, struct rte_vdev_device **p_dev)
}
TAILQ_INSERT_TAIL(&vdev_device_list, dev, next);
- rte_devargs_insert(devargs);
+ if (init)
+ rte_devargs_insert(devargs);
if (p_dev)
*p_dev = dev;
@@ -257,7 +260,7 @@ rte_vdev_init(const char *name, const char *args)
int ret;
rte_spinlock_recursive_lock(&vdev_device_list_lock);
- ret = insert_vdev(name, args, &dev);
+ ret = insert_vdev(name, args, &dev, true);
if (ret == 0) {
ret = vdev_probe_all_drivers(dev);
if (ret) {
@@ -383,7 +386,7 @@ vdev_action(const struct rte_mp_msg *mp_msg, const void *peer)
break;
case VDEV_SCAN_ONE:
VDEV_LOG(INFO, "receive vdev, %s", in->name);
- ret = insert_vdev(in->name, NULL, NULL);
+ ret = insert_vdev(in->name, NULL, NULL, false);
if (ret == -EEXIST)
VDEV_LOG(DEBUG, "device already exist, %s", in->name);
else if (ret < 0)
--
2.13.6
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