Re: [PATCH v3 1/3] mem: move nvdimm_device_list to utilities

[Igor Mammedov <imammedo@redhat.com>]

On Mon, 14 Oct 2019 13:37:37 -0500
Shivaprasad G Bhat <sbhat@linux.ibm.com> wrote:

> nvdimm_device_list is required for parsing the list for devices
> in subsequent patches. Move it to common utility area.
> 
> Signed-off-by: Shivaprasad G Bhat <sbhat@linux.ibm.com>
> ---
>  hw/acpi/nvdimm.c            |   28 +---------------------------
>  include/qemu/nvdimm-utils.h |    7 +++++++
>  util/Makefile.objs          |    1 +
>  util/nvdimm-utils.c         |   29 +++++++++++++++++++++++++++++
instead of creating new file, why not to move it to existing hw/mem/nvdimm.c?

>  4 files changed, 38 insertions(+), 27 deletions(-)
>  create mode 100644 include/qemu/nvdimm-utils.h
>  create mode 100644 util/nvdimm-utils.c
> 
> diff --git a/hw/acpi/nvdimm.c b/hw/acpi/nvdimm.c
> index 9fdad6dc3f..5219dd0e2e 100644
> --- a/hw/acpi/nvdimm.c
> +++ b/hw/acpi/nvdimm.c
> @@ -32,33 +32,7 @@
>  #include "hw/acpi/bios-linker-loader.h"
>  #include "hw/nvram/fw_cfg.h"
>  #include "hw/mem/nvdimm.h"
> -
> -static int nvdimm_device_list(Object *obj, void *opaque)
> -{
> -    GSList **list = opaque;
> -
> -    if (object_dynamic_cast(obj, TYPE_NVDIMM)) {
> -        *list = g_slist_append(*list, DEVICE(obj));
> -    }
> -
> -    object_child_foreach(obj, nvdimm_device_list, opaque);
> -    return 0;
> -}
> -
> -/*
> - * inquire NVDIMM devices and link them into the list which is
> - * returned to the caller.
> - *
> - * Note: it is the caller's responsibility to free the list to avoid
> - * memory leak.
> - */
> -static GSList *nvdimm_get_device_list(void)
> -{
> -    GSList *list = NULL;
> -
> -    object_child_foreach(qdev_get_machine(), nvdimm_device_list, &list);
> -    return list;
> -}
> +#include "qemu/nvdimm-utils.h"
>  
>  #define NVDIMM_UUID_LE(a, b, c, d0, d1, d2, d3, d4, d5, d6, d7)             \
>     { (a) & 0xff, ((a) >> 8) & 0xff, ((a) >> 16) & 0xff, ((a) >> 24) & 0xff, \
> diff --git a/include/qemu/nvdimm-utils.h b/include/qemu/nvdimm-utils.h
> new file mode 100644
> index 0000000000..4b8b198ba7
> --- /dev/null
> +++ b/include/qemu/nvdimm-utils.h
> @@ -0,0 +1,7 @@
> +#ifndef NVDIMM_UTILS_H
> +#define NVDIMM_UTILS_H
> +
> +#include "qemu/osdep.h"
> +
> +GSList *nvdimm_get_device_list(void);
> +#endif
> diff --git a/util/Makefile.objs b/util/Makefile.objs
> index 41bf59d127..a0f40d26e3 100644
> --- a/util/Makefile.objs
> +++ b/util/Makefile.objs
> @@ -20,6 +20,7 @@ util-obj-y += envlist.o path.o module.o
>  util-obj-y += host-utils.o
>  util-obj-y += bitmap.o bitops.o hbitmap.o
>  util-obj-y += fifo8.o
> +util-obj-y += nvdimm-utils.o
>  util-obj-y += cacheinfo.o
>  util-obj-y += error.o qemu-error.o
>  util-obj-y += qemu-print.o
> diff --git a/util/nvdimm-utils.c b/util/nvdimm-utils.c
> new file mode 100644
> index 0000000000..5cc768ca47
> --- /dev/null
> +++ b/util/nvdimm-utils.c
> @@ -0,0 +1,29 @@
> +#include "qemu/nvdimm-utils.h"
> +#include "hw/mem/nvdimm.h"
> +
> +static int nvdimm_device_list(Object *obj, void *opaque)
> +{
> +    GSList **list = opaque;
> +
> +    if (object_dynamic_cast(obj, TYPE_NVDIMM)) {
> +        *list = g_slist_append(*list, DEVICE(obj));
> +    }
> +
> +    object_child_foreach(obj, nvdimm_device_list, opaque);
> +    return 0;
> +}
> +
> +/*
> + * inquire NVDIMM devices and link them into the list which is
> + * returned to the caller.
> + *
> + * Note: it is the caller's responsibility to free the list to avoid
> + * memory leak.
> + */
> +GSList *nvdimm_get_device_list(void)
> +{
> +    GSList *list = NULL;
> +
> +    object_child_foreach(qdev_get_machine(), nvdimm_device_list, &list);
> +    return list;
> +}
> 
>