This is a note to let you know that I've just added the patch titled
pds_vdpa: clear config callback when status goes to 0
to the 6.6-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
pds_vdpa-clear-config-callback-when-status-goes-to-0.patch
and it can be found in the queue-6.6 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit c98569627dd12e34ac0604421077b782a67acf7f
Author: Shannon Nelson <shannon.nelson@xxxxxxx>
Date: Fri Nov 10 14:18:01 2023 -0800
pds_vdpa: clear config callback when status goes to 0
[ Upstream commit dd3b8de16e90c5594eddd29aeeb99e97c6f863be ]
If the client driver is setting status to 0, something is
getting shutdown and possibly removed. Make sure we clear
the config_cb so that it doesn't end up crashing when
trying to call a bogus callback.
Signed-off-by: Shannon Nelson <shannon.nelson@xxxxxxx>
Message-Id: <20231110221802.46841-3-shannon.nelson@xxxxxxx>
Signed-off-by: Michael S. Tsirkin <mst@xxxxxxxxxx>
Acked-by: Jason Wang <jasowang@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/vdpa/pds/vdpa_dev.c b/drivers/vdpa/pds/vdpa_dev.c
index 52b2449182ad..9fc89c82d1f0 100644
--- a/drivers/vdpa/pds/vdpa_dev.c
+++ b/drivers/vdpa/pds/vdpa_dev.c
@@ -461,8 +461,10 @@ static void pds_vdpa_set_status(struct vdpa_device *vdpa_dev, u8 status)
pds_vdpa_cmd_set_status(pdsv, status);
- /* Note: still working with FW on the need for this reset cmd */
if (status == 0) {
+ struct vdpa_callback null_cb = { };
+
+ pds_vdpa_set_config_cb(vdpa_dev, &null_cb);
pds_vdpa_cmd_reset(pdsv);
for (i = 0; i < pdsv->num_vqs; i++) {
