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migration/rdma: Downgrade qemu_rdma_cleanup() errors to warnings

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Functions that use an Error **errp parameter to return errors should
not also report them to the user, because reporting is the caller's
job.  When the caller does, the error is reported twice.  When it
doesn't (because it recovered from the error), there is no error to
report, i.e. the report is bogus.

qemu_rdma_source_init(), qemu_rdma_connect(),
rdma_start_incoming_migration(), and rdma_start_outgoing_migration()
violate this principle: they call error_report() via
qemu_rdma_cleanup().

Moreover, qemu_rdma_cleanup() can't fail.  It is called on error
paths, and QIOChannel close and finalization.  Are the conditions it
reports really errors?  I doubt it.

Downgrade qemu_rdma_cleanup()'s errors to warnings.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Fabiano Rosas <farosas@suse.de>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
Message-ID: <20230928132019.2544702-52-armbru@redhat.com>
This commit is contained in:
Markus Armbruster 2023-09-28 15:20:17 +02:00 committed by Juan Quintela
parent b765d21e4a
commit 5cec563d0c
1 changed files with 2 additions and 2 deletions
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4
migration/rdma.c
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@ -2375,9 +2375,9 @@ static void qemu_rdma_cleanup(RDMAContext *rdma)
.type = RDMA_CONTROL_ERROR,
.repeat = 1,
};
error_report("Early error. Sending error.");
warn_report("Early error. Sending error.");
if (qemu_rdma_post_send_control(rdma, NULL, &head, &err) < 0) {
error_report_err(err);
warn_report_err(err);
}
}