[PATCH v2] Fix parameter type in vhost migration log path

[PATCH v2] Fix parameter type in vhost migration log path

[Raphael Norwitz]

The ‘enable’ parameter to the vhost_migraion_log() function is given as
an int, but "true"/"false" values are passed in wherever it is invoked.
Inside the function itself it is only ever compared with bool values.
Therefore the parameter value itself should be changed to bool.

Signed-off-by: Raphael Norwitz <raphael.norwitz@nutanix.com>
---
 hw/virtio/vhost.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/hw/virtio/vhost.c b/hw/virtio/vhost.c
index aff98a0..aa06a36 100644
--- a/hw/virtio/vhost.c
+++ b/hw/virtio/vhost.c
@@ -809,12 +809,12 @@ err_features:
     return r;
 }

-static int vhost_migration_log(MemoryListener *listener, int enable)
+static int vhost_migration_log(MemoryListener *listener, bool enable)
 {
     struct vhost_dev *dev = container_of(listener, struct vhost_dev,
                                          memory_listener);
     int r;
-    if (!!enable == dev->log_enabled) {
+    if (enable == dev->log_enabled) {
         return 0;
     }
     if (!dev->started) {
--
1.8.3.1

Re: [PATCH v2] Fix parameter type in vhost migration log path

[Eric Blake]

On 5/7/20 4:37 PM, Raphael Norwitz wrote:
> The ‘enable’ parameter to the vhost_migraion_log() function is given as
> an int, but "true"/"false" values are passed in wherever it is invoked.
> Inside the function itself it is only ever compared with bool values.
> Therefore the parameter value itself should be changed to bool.
> 
> Signed-off-by: Raphael Norwitz <raphael.norwitz@nutanix.com>
> ---
>   hw/virtio/vhost.c | 4 ++--
>   1 file changed, 2 insertions(+), 2 deletions(-)
> 

Reviewed-by: Eric Blake <eblake@redhat.com>

> diff --git a/hw/virtio/vhost.c b/hw/virtio/vhost.c
> index aff98a0..aa06a36 100644
> --- a/hw/virtio/vhost.c
> +++ b/hw/virtio/vhost.c
> @@ -809,12 +809,12 @@ err_features:
>       return r;
>   }
> 
> -static int vhost_migration_log(MemoryListener *listener, int enable)
> +static int vhost_migration_log(MemoryListener *listener, bool enable)
>   {
>       struct vhost_dev *dev = container_of(listener, struct vhost_dev,
>                                            memory_listener);
>       int r;
> -    if (!!enable == dev->log_enabled) {
> +    if (enable == dev->log_enabled) {
>           return 0;
>       }
>       if (!dev->started) {
> --
> 1.8.3.1
> 

-- 
Eric Blake, Principal Software Engineer
Red Hat, Inc.           +1-919-301-3226
Virtualization:  qemu.org | libvirt.org

Re: [PATCH v2] Fix parameter type in vhost migration log path

[Eric Blake]

On 5/7/20 4:37 PM, Raphael Norwitz wrote:
> The ‘enable’ parameter to the vhost_migraion_log() function is given as

typo: migration

Presumably, the maintainer can fix this rather than needing you to send 
a v3...

> an int, but "true"/"false" values are passed in wherever it is invoked.
> Inside the function itself it is only ever compared with bool values.
> Therefore the parameter value itself should be changed to bool.
> 
> Signed-off-by: Raphael Norwitz <raphael.norwitz@nutanix.com>
> ---
>   hw/virtio/vhost.c | 4 ++--
>   1 file changed, 2 insertions(+), 2 deletions(-)
-- 
Eric Blake, Principal Software Engineer
Red Hat, Inc.           +1-919-301-3226
Virtualization:  qemu.org | libvirt.org

Re: [PATCH v2] Fix parameter type in vhost migration log path

[Laurent Vivier]

Le 07/05/2020 à 23:37, Raphael Norwitz a écrit :
> The ‘enable’ parameter to the vhost_migraion_log() function is given as
> an int, but "true"/"false" values are passed in wherever it is invoked.
> Inside the function itself it is only ever compared with bool values.
> Therefore the parameter value itself should be changed to bool.
> 
> Signed-off-by: Raphael Norwitz <raphael.norwitz@nutanix.com>
> ---
>  hw/virtio/vhost.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/hw/virtio/vhost.c b/hw/virtio/vhost.c
> index aff98a0..aa06a36 100644
> --- a/hw/virtio/vhost.c
> +++ b/hw/virtio/vhost.c
> @@ -809,12 +809,12 @@ err_features:
>      return r;
>  }
> 
> -static int vhost_migration_log(MemoryListener *listener, int enable)
> +static int vhost_migration_log(MemoryListener *listener, bool enable)
>  {
>      struct vhost_dev *dev = container_of(listener, struct vhost_dev,
>                                           memory_listener);
>      int r;
> -    if (!!enable == dev->log_enabled) {
> +    if (enable == dev->log_enabled) {
>          return 0;
>      }
>      if (!dev->started) {
> --
> 1.8.3.1
> 

Applied to my trivial-patches branch.

Thanks,
Laurent