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[PATCH 3/3] libvhost-user: Fix VHOST_USER_ADD_MEM_REG reply
From: |
Kevin Wolf |
Subject: |
[PATCH 3/3] libvhost-user: Fix VHOST_USER_ADD_MEM_REG reply |
Date: |
Mon, 27 Jun 2022 15:45:00 +0200 |
With REPLY_NEEDED, libvhost-user sends both the acutal result and an
additional ACK reply for VHOST_USER_ADD_MEM_REG. This is incorrect, the
spec mandates that it behave the same with and without REPLY_NEEDED
because it always sends a reply.
Fixes: ec94c8e621de96c50c2d381c8c9ec94f5beec7c1
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
---
subprojects/libvhost-user/libvhost-user.c | 8 +-------
1 file changed, 1 insertion(+), 7 deletions(-)
diff --git a/subprojects/libvhost-user/libvhost-user.c
b/subprojects/libvhost-user/libvhost-user.c
index cfa1bcc334..ffed4729a3 100644
--- a/subprojects/libvhost-user/libvhost-user.c
+++ b/subprojects/libvhost-user/libvhost-user.c
@@ -779,15 +779,9 @@ vu_add_mem_reg(VuDev *dev, VhostUserMsg *vmsg) {
/* Send the message back to qemu with the addresses filled in. */
vmsg->fd_num = 0;
- if (!vu_send_reply(dev, dev->sock, vmsg)) {
- vu_panic(dev, "failed to respond to add-mem-region for postcopy");
- return false;
- }
-
DPRINT("Successfully added new region in postcopy\n");
dev->nregions++;
- return false;
-
+ return true;
} else {
for (i = 0; i < dev->max_queues; i++) {
if (dev->vq[i].vring.desc) {
--
2.35.3