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[Qemu-devel] [PATCH v8 24/35] spapr_drc: Expose 'null' in qom-get when t
From: |
Eric Blake |
Subject: |
[Qemu-devel] [PATCH v8 24/35] spapr_drc: Expose 'null' in qom-get when there is no fdt |
Date: |
Mon, 21 Dec 2015 10:08:29 -0700 |
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 vs. a present-but-empty
one.
(Note that this reverts the behavior of commit ab8bf1d, taking
us back to the behavior of commit 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>
---
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 18a4225..4c8a0ef 100644
--- a/hw/ppc/spapr_drc.c
+++ b/hw/ppc/spapr_drc.c
@@ -259,11 +259,7 @@ 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;
}
--
2.4.3
- [Qemu-devel] [PATCH v8 13/35] qom: Use typedef for Visitor, (continued)
- [Qemu-devel] [PATCH v8 13/35] qom: Use typedef for Visitor, Eric Blake, 2015/12/21
- [Qemu-devel] [PATCH v8 20/35] qmp: Don't abuse stack to track qmp-output root, Eric Blake, 2015/12/21
- [Qemu-devel] [PATCH v8 18/35] qapi: Drop unused error argument for list and implicit struct, Eric Blake, 2015/12/21
- [Qemu-devel] [PATCH v8 27/35] qapi: Fix command with named empty argument type, Eric Blake, 2015/12/21
- [Qemu-devel] [PATCH v8 01/35] qobject: Document more shortcomings in our number handling, Eric Blake, 2015/12/21
- [Qemu-devel] [PATCH v8 22/35] qapi: Add visit_type_null() visitor, Eric Blake, 2015/12/21
- [Qemu-devel] [PATCH v8 25/35] qapi: Simplify excess input reporting in input visitors, Eric Blake, 2015/12/21
- [Qemu-devel] [PATCH v8 19/35] qmp: Fix reference-counting of qnull on empty output visit, Eric Blake, 2015/12/21
- [Qemu-devel] [PATCH v8 21/35] qapi: Document visitor interfaces, add assertions, Eric Blake, 2015/12/21
- [Qemu-devel] [PATCH v8 28/35] qapi: Eliminate empty visit_type_FOO_fields, Eric Blake, 2015/12/21
- [Qemu-devel] [PATCH v8 24/35] spapr_drc: Expose 'null' in qom-get when there is no fdt,
Eric Blake <=
- [Qemu-devel] [PATCH v8 31/35] qapi: Rework deallocation of partial struct, Eric Blake, 2015/12/21
- [Qemu-devel] [PATCH v8 34/35] qapi: Change visit_type_FOO() to no longer return partial objects, Eric Blake, 2015/12/21
- [Qemu-devel] [PATCH v8 32/35] qapi: Split visit_end_struct() into pieces, Eric Blake, 2015/12/21
- [Qemu-devel] [PATCH v8 35/35] RFC: qapi: Adjust layout of FooList types, Eric Blake, 2015/12/21
- [Qemu-devel] [PATCH v8 23/35] qmp: Tighten output visitor rules, Eric Blake, 2015/12/21
- [Qemu-devel] [PATCH v8 33/35] qapi: Simplify semantics of visit_next_list(), Eric Blake, 2015/12/21
- [Qemu-devel] [PATCH v8 16/35] qapi: Swap 'name' in visit_* callbacks to match public API, Eric Blake, 2015/12/21
- [Qemu-devel] [PATCH v8 30/35] qapi-visit: Unify struct and union visit, Eric Blake, 2015/12/21
- [Qemu-devel] [PATCH v8 26/35] qapi: Add type.is_empty() helper, Eric Blake, 2015/12/21
- [Qemu-devel] [PATCH v8 29/35] qapi: Canonicalize missing object to :empty, Eric Blake, 2015/12/21