[PULL,27/65] migration/rdma: Fix qemu_rdma_broken_ipv6_kernel() to set error

Commit Message

Juan Quintela Oct. 11, 2023, 9:21 a.m. UTC

From: Markus Armbruster <[e-mail]>

qemu_rdma_resolve_host() and qemu_rdma_dest_init() try addresses until
they find on that works.  If none works, they return the first Error
set by qemu_rdma_broken_ipv6_kernel(), or else return a generic one.

qemu_rdma_broken_ipv6_kernel() neglects to set an Error when
ibv_open_device() fails.  If a later address fails differently, we use
that Error instead, or else the generic one.  Harmless enough, but
needs fixing all the same.

Signed-off-by: Markus Armbruster <[e-mail]>
Reviewed-by: Fabiano Rosas <[e-mail]>
Reviewed-by: Li Zhijian <[e-mail]>
Reviewed-by: Juan Quintela <[e-mail]>
Signed-off-by: Juan Quintela <[e-mail]>
Message-ID: <[e-mail]>
---
 migration/rdma.c | 2 ++
 1 file changed, 2 insertions(+)

Patch

diff --git a/migration/rdma.c b/migration/rdma.c
index 30e2c817f2..9c576bdcba 100644
--- a/migration/rdma.c
+++ b/migration/rdma.c
@@ -861,6 +861,8 @@  static int qemu_rdma_broken_ipv6_kernel(struct ibv_context *verbs, Error **errp)
                 if (errno == EPERM) {
                     continue;
                 } else {
+                    error_setg_errno(errp, errno,
+                                     "could not open RDMA device context");
                     return -EINVAL;
                 }
             }