[PATCH v15 05/13] vdpa: document set_group_asid thread safety

Eugenio Pérez
2026-01-19T14:33:37Z

Document that the function races with the check of DRIVER_OK.

Acked-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Eugenio Pérez <eperezma@redhat.com>
---
Requested at
https://lore.kernel.org/lkml/CACGkMEvXdV4ukZE6xhLL0sSN70G=AWVQgpRnH98Fr4btzMkK9g@mail.gmail.com/

v12: Reword comment (MST).
---
include/linux/vdpa.h | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/include/linux/vdpa.h b/include/linux/vdpa.h
index 4cf21d6e9cfd..2bfe3baa63f4 100644
--- a/include/linux/vdpa.h
+++ b/include/linux/vdpa.h
@@ -312,7 +312,9 @@ struct vdpa_map_file {
* @idx: virtqueue index
* Returns the affinity mask
* @set_group_asid: Set address space identifier for a
- * virtqueue group (optional)
+ * virtqueue group (optional). Caller must
+ * prevent this from being executed concurrently
+ * with set_status.
* @vdev: vdpa device
* @group: virtqueue group
* @asid: address space id for this group
--
2.52.0