incubator-nuttx/openamp/0004-openamp-virtio.h-negot...

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From 17ca934563b3d62f950f5d1693d89556495d150f Mon Sep 17 00:00:00 2001
From: wangyongrong <wangyongrong@xiaomi.com>
Date: Tue, 2 Jul 2024 16:33:32 +0800
Subject: [PATCH 04/14] openamp/virtio.h: negotiate_features also can be call
when final_features is NULL
Change-Id: I41774d6c8b3c8b7487dc4b640fa60f4061ad3694
Signed-off-by: wangyongrong <wangyongrong@xiaomi.com>
---
lib/include/openamp/virtio.h | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/lib/include/openamp/virtio.h open-amp/lib/include/openamp/virtio.h
index c4d4927..278d2da 100644
--- a/lib/include/openamp/virtio.h
+++ open-amp/lib/include/openamp/virtio.h
@@ -468,13 +468,15 @@ static inline int virtio_negotiate_features(struct virtio_device *vdev,
uint32_t features,
uint32_t *final_features)
{
- if (!vdev || !final_features)
+ if (!vdev)
return -EINVAL;
if (!vdev->func || !vdev->func->negotiate_features)
return -ENXIO;
- *final_features = vdev->func->negotiate_features(vdev, features);
+ vdev->features = vdev->func->negotiate_features(vdev, features);
+ if (final_features)
+ *final_features = vdev->features;
return 0;
}
--
2.34.1