* [PATCH for-4.15 1/2] xen/dmop: Fix XEN_DMOP_nr_vcpus to actually return data
@ 2021-03-04 13:01 Andrew Cooper
2021-03-04 13:04 ` Andrew Cooper
0 siblings, 1 reply; 2+ messages in thread
From: Andrew Cooper @ 2021-03-04 13:01 UTC (permalink / raw)
To: Xen-devel; +Cc: Andrew Cooper
The const_op boolean needs clobbering to cause data to be written back to the
caller.
Fixes: c4441ab1f1 ("dmop: Add XEN_DMOP_nr_vcpus")
Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com>
Reviewed-by: Roger Pau Monné <roger.pau@citrix.com>
Release-Acked-by: Ian Jackson <iwj@xenproject.org>
---
xen/arch/arm/dm.c | 1 +
xen/arch/x86/hvm/dm.c | 1 +
2 files changed, 2 insertions(+)
diff --git a/xen/arch/arm/dm.c b/xen/arch/arm/dm.c
index d689e336fd..1b3fd6bc7d 100644
--- a/xen/arch/arm/dm.c
+++ b/xen/arch/arm/dm.c
@@ -128,6 +128,7 @@ int dm_op(const struct dmop_args *op_args)
struct xen_dm_op_nr_vcpus *data = &op.u.nr_vcpus;
data->vcpus = d->max_vcpus;
+ const_op = false;
rc = 0;
break;
}
diff --git a/xen/arch/x86/hvm/dm.c b/xen/arch/x86/hvm/dm.c
index f4f0910463..b60b9f3364 100644
--- a/xen/arch/x86/hvm/dm.c
+++ b/xen/arch/x86/hvm/dm.c
@@ -612,6 +612,7 @@ int dm_op(const struct dmop_args *op_args)
struct xen_dm_op_nr_vcpus *data = &op.u.nr_vcpus;
data->vcpus = d->max_vcpus;
+ const_op = false;
rc = 0;
break;
}
--
2.11.0
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH for-4.15 1/2] xen/dmop: Fix XEN_DMOP_nr_vcpus to actually return data
2021-03-04 13:01 [PATCH for-4.15 1/2] xen/dmop: Fix XEN_DMOP_nr_vcpus to actually return data Andrew Cooper
@ 2021-03-04 13:04 ` Andrew Cooper
0 siblings, 0 replies; 2+ messages in thread
From: Andrew Cooper @ 2021-03-04 13:04 UTC (permalink / raw)
To: xen-devel
On 04/03/2021 13:01, Andrew Cooper wrote:
> The const_op boolean needs clobbering to cause data to be written back to the
> caller.
>
> Fixes: c4441ab1f1 ("dmop: Add XEN_DMOP_nr_vcpus")
> Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com>
> Reviewed-by: Roger Pau Monné <roger.pau@citrix.com>
> Release-Acked-by: Ian Jackson <iwj@xenproject.org>
Apologies - I made a mistake with git-send-email. No further action
required.
~Andrew
^ permalink raw reply [flat|nested] 2+ messages in thread
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