[PATCH v2 2/2] event/dsw: fix missing device pointer

Bruce Richardson bruce.richardson at intel.com
Tue Oct 17 17:51:49 CEST 2023


After calling rte_event_dev_info_get() the ".dev" field of the info
structure should have a pointer to the underlying device, allowing the
user to e.g. get the device name using rte_dev_name(info.dev).

The distributed software eventdev info structure did not return a
correct device pointer, though, instead returning NULL, which caused
crashes getting "rte_dev_name". Initializing the dev pointer inside the
"eventdev" struct in the device probe function fixes this by ensuring we
have a valid pointer to return in info_get calls.

Fixes: 46a186b1f0c5 ("event/dsw: add device registration and build system")
Cc: mattias.ronnblom at ericsson.com
Cc: stable at dpdk.org

Signed-off-by: Bruce Richardson <bruce.richardson at intel.com>
---
 drivers/event/dsw/dsw_evdev.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/event/dsw/dsw_evdev.c b/drivers/event/dsw/dsw_evdev.c
index 785c12f61f..44da3c60d1 100644
--- a/drivers/event/dsw/dsw_evdev.c
+++ b/drivers/event/dsw/dsw_evdev.c
@@ -440,6 +440,7 @@ dsw_probe(struct rte_vdev_device *vdev)
 		return -EFAULT;
 
 	dev->dev_ops = &dsw_evdev_ops;
+	dev->dev = &vdev->device;
 	dev->enqueue = dsw_event_enqueue;
 	dev->enqueue_burst = dsw_event_enqueue_burst;
 	dev->enqueue_new_burst = dsw_event_enqueue_new_burst;
-- 
2.39.2



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