github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-05-22 06:01:53 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

s390/vfio-ap: Ignore duplicate link requests in vfio_ap_mdev_link_queue

Browse Source 
vfio_ap_mdev_link_queue is changed to detect if a matrix_mdev has
already linked the given queue. If so, it bails out.

Signed-off-by: "Jason J. Herne" <jjherne@linux.ibm.com>
Reviewed-by: Tony Krowiak <akrowiak@linux.ibm.com>
Link: https://lore.kernel.org/r/20240415152555.13152-4-jjherne@linux.ibm.com
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
This commit is contained in:
Jason J. Herne 2024-04-15 11:25:53 -04:00 committed by Alexander Gordeev
parent e12aa0b5b2
commit f3e3a4008c
1 changed files with 5 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
drivers/s390/crypto/vfio_ap_ops.c
View File

@ -794,10 +794,11 @@ static int vfio_ap_mdev_probe(struct mdev_device *mdev)
static void vfio_ap_mdev_link_queue(struct ap_matrix_mdev *matrix_mdev,
struct vfio_ap_queue *q)
{
if (q) {
q->matrix_mdev = matrix_mdev;
hash_add(matrix_mdev->qtable.queues, &q->mdev_qnode, q->apqn);
}
if (!q || vfio_ap_mdev_get_queue(matrix_mdev, q->apqn))
return;
q->matrix_mdev = matrix_mdev;
hash_add(matrix_mdev->qtable.queues, &q->mdev_qnode, q->apqn);
}
static void vfio_ap_mdev_link_apqn(struct ap_matrix_mdev *matrix_mdev, int apqn)