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[Qemu-devel] [PATCH v14 12/19] spapr_drc: Expose 'null' in qom-get when
From: |
Eric Blake |
Subject: |
[Qemu-devel] [PATCH v14 12/19] spapr_drc: Expose 'null' in qom-get when there is no fdt |
Date: |
Fri, 8 Apr 2016 10:13:05 -0600 |
Now that the QMP output visitor supports an explicit null
output, we should utilize it to make it easier to diagnose
the difference between a missing fdt ('null') vs. a
present-but-empty one ('{}').
(Note that this reverts the behavior of commit ab8bf1d, taking
us back to the behavior of commit 6c2f9a1 [which in turn
stemmed from a crash fix in 1d10b44]; but that this time,
the change is intentional and not an accidental side-effect.)
Signed-off-by: Eric Blake <address@hidden>
Acked-by: David Gibson <address@hidden>
---
v14: no change
v13: no change
v12: tweak commit message
[no v10, v11]
v9: improved commit message
v8: rebase to 'name' motion
v7: new patch, based on discussion about spapr_drc.c
---
hw/ppc/spapr_drc.c | 6 +-----
1 file changed, 1 insertion(+), 5 deletions(-)
diff --git a/hw/ppc/spapr_drc.c b/hw/ppc/spapr_drc.c
index 3173940..72d725c 100644
--- a/hw/ppc/spapr_drc.c
+++ b/hw/ppc/spapr_drc.c
@@ -269,11 +269,7 @@ static void prop_get_fdt(Object *obj, Visitor *v, const
char *name,
void *fdt;
if (!drc->fdt) {
- visit_start_struct(v, name, NULL, 0, &err);
- if (!err) {
- visit_end_struct(v, &err);
- }
- error_propagate(errp, err);
+ visit_type_null(v, NULL, errp);
return;
}
--
2.5.5
[Qemu-devel] [PATCH v14 12/19] spapr_drc: Expose 'null' in qom-get when there is no fdt,
Eric Blake <=
[Qemu-devel] [PATCH v14 15/19] qapi-commands: Wrap argument visit in visit_start_struct, Eric Blake, 2016/04/08
[Qemu-devel] [PATCH v14 13/19] qmp: Tighten output visitor rules, Eric Blake, 2016/04/08
[Qemu-devel] [PATCH v14 16/19] qom: Wrap prop visit in visit_start_struct, Eric Blake, 2016/04/08