Re: [PATCH 04/20] conf: Add support for shmem model

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On Thu, Sep 15, 2016 at 18:14:29 +0200, Martin Kletzander wrote:
> Just the default one now, new ones will be added in following commits.
> 
> Signed-off-by: Martin Kletzander <mkletzan@xxxxxxxxxx>
> ---
>  docs/schemas/domaincommon.rng                     |  9 +++++
>  src/conf/domain_conf.c                            | 41 +++++++++++++++++------
>  src/conf/domain_conf.h                            |  8 +++++
>  src/libvirt_private.syms                          |  2 ++
>  src/qemu/qemu_command.c                           | 14 ++++++--
>  tests/qemuxml2argvdata/qemuxml2argv-shmem.xml     |  2 ++
>  tests/qemuxml2xmloutdata/qemuxml2xmlout-shmem.xml |  8 +++++
>  7 files changed, 70 insertions(+), 14 deletions(-)

[...]

> diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c
> index 3a61863b9abb..5eae0631a14f 100644
> --- a/src/qemu/qemu_command.c
> +++ b/src/qemu/qemu_command.c
> @@ -8648,10 +8648,18 @@ qemuBuildShmemCommandLine(virLogManagerPtr logManager,
>  {
>      char *devstr = NULL;
> 
> -    if (!(devstr = qemuBuildShmemDevStr(def, shmem, qemuCaps)))
> +    switch ((virDomainShmemModel)shmem->model) {
> +    case VIR_DOMAIN_SHMEM_MODEL_IVSHMEM:
> +        if (!(devstr = qemuBuildShmemDevStr(def, shmem, qemuCaps)))
> +            return -1;
> +        virCommandAddArgList(cmd, "-device", devstr, NULL);
> +        VIR_FREE(devstr);
> +        break;
> +
> +    /* coverity[dead_error_begin] */

I'd don't really like stuff like this.

> +    case VIR_DOMAIN_SHMEM_MODEL_LAST:
>          return -1;
> -    virCommandAddArgList(cmd, "-device", devstr, NULL);
> -    VIR_FREE(devstr);
> +    }
> 
>      if (shmem->server.enabled) {
>          if (!(devstr = qemuBuildShmemBackendStr(logManager, cmd, cfg, def,

ACK nevertheless.

Peter

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