Kernel/linux-next
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git synced 2025-01-04 04:02:26 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

s390/vfio_ap: verify ZAPQ completion after return of response code zero

Browse Source 
Verification that the asynchronous ZAPQ function has completed only needs
to be done when the response code indicates the function was successfully
initiated; so, let's call the apq_reset_check function immediately after
the response code zero is returned from the ZAPQ.

Signed-off-by: Tony Krowiak <akrowiak@linux.ibm.com>
Reviewed-by: Jason J. Herne <jjherne@linux.ibm.com>
Reviewed-by: Harald Freudenberger <freude@linux.ibm.com>
Link: https://lore.kernel.org/r/20230118203111.529766-5-akrowiak@linux.ibm.com
Signed-off-by: Christian Borntraeger <borntraeger@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
This commit is contained in:
Tony Krowiak 2023-01-18 15:31:09 -05:00 committed by Heiko Carstens
parent 3ba4176810
commit 5a42b348ad
1 changed files with 3 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
drivers/s390/crypto/vfio_ap_ops.c
View File

@ -1656,6 +1656,9 @@ static int vfio_ap_mdev_reset_queue(struct vfio_ap_queue *q)
switch (status.response_code) {
case AP_RESPONSE_NORMAL:
ret = 0;
/* if the reset has not completed, wait for it to take effect */
if (!status.queue_empty || status.irq_enabled)
ret = apq_reset_check(q);
break;
case AP_RESPONSE_RESET_IN_PROGRESS:
/*
@ -1685,10 +1688,6 @@ static int vfio_ap_mdev_reset_queue(struct vfio_ap_queue *q)
return -EIO;
}
/* wait for the reset to take effect */
if (!(status.queue_empty && !status.irq_enabled))
ret = apq_reset_check(q);
free_resources:
vfio_ap_free_aqic_resources(q);