Re: [Qemu-devel] [PATCH 05/15] hw/nvram/fw_cfg: Remove various typedefs from "qemu/typedefs.h"

[Laszlo Ersek <lersek@redhat.com>]

On 01/11/19 15:08, Philippe Mathieu-Daudé wrote:
> There are only three files requiring these typedefs, let them
> include "hw/nvram/fw_cfg.h" directly to simplify "qemu/typedefs.h".
> 
> To clean "qemu/typedefs.h", move the forward declarations
> to "hw/nvram/fw_cfg.h".
> 
> Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
> ---
>  include/hw/acpi/vmgenid.h | 1 +
>  include/hw/arm/virt.h     | 1 +
>  include/hw/mem/nvdimm.h   | 1 +
>  include/hw/nvram/fw_cfg.h | 8 +++++++-
>  include/qemu/typedefs.h   | 4 ----
>  5 files changed, 10 insertions(+), 5 deletions(-)
> 
> diff --git a/include/hw/acpi/vmgenid.h b/include/hw/acpi/vmgenid.h
> index 38586ecbdf..be53de38f1 100644
> --- a/include/hw/acpi/vmgenid.h
> +++ b/include/hw/acpi/vmgenid.h
> @@ -3,6 +3,7 @@
>  
>  #include "hw/acpi/bios-linker-loader.h"
>  #include "hw/qdev.h"
> +#include "hw/nvram/fw_cfg.h"
>  #include "qemu/uuid.h"
>  
>  #define VMGENID_DEVICE           "vmgenid"
> diff --git a/include/hw/arm/virt.h b/include/hw/arm/virt.h
> index 4cc57a7ef6..fef632dcf5 100644
> --- a/include/hw/arm/virt.h
> +++ b/include/hw/arm/virt.h
> @@ -35,6 +35,7 @@
>  #include "qemu/notify.h"
>  #include "hw/boards.h"
>  #include "hw/arm/arm.h"
> +#include "hw/nvram/fw_cfg.h"
>  #include "sysemu/kvm.h"
>  #include "hw/intc/arm_gicv3_common.h"
>  
> diff --git a/include/hw/mem/nvdimm.h b/include/hw/mem/nvdimm.h
> index c5c9b3c7f8..51d3a52c4b 100644
> --- a/include/hw/mem/nvdimm.h
> +++ b/include/hw/mem/nvdimm.h
> @@ -24,6 +24,7 @@
>  #define QEMU_NVDIMM_H
>  
>  #include "hw/mem/pc-dimm.h"
> +#include "hw/nvram/fw_cfg.h"
>  #include "hw/acpi/bios-linker-loader.h"
>  
>  #define NVDIMM_DEBUG 0
> diff --git a/include/hw/nvram/fw_cfg.h b/include/hw/nvram/fw_cfg.h
> index f5a6895a74..244ed78afa 100644
> --- a/include/hw/nvram/fw_cfg.h
> +++ b/include/hw/nvram/fw_cfg.h
> @@ -14,7 +14,9 @@
>  #define FW_CFG_IO(obj)  OBJECT_CHECK(FWCfgIoState,  (obj), TYPE_FW_CFG_IO)
>  #define FW_CFG_MEM(obj) OBJECT_CHECK(FWCfgMemState, (obj), TYPE_FW_CFG_MEM)
>  
> -typedef struct fw_cfg_file FWCfgFile;
> +typedef struct FWCfgState FWCfgState;
> +typedef struct FWCfgIoState FWCfgIoState;
> +typedef struct FWCfgMemState FWCfgMemState;

I think the resultant file would be easier to read if you moved the
State typedefs before the spot where we make the first references to
them, namely in the FW_CFG*() function-like macros.

With that,

Reviewed-by: Laszlo Ersek <lersek@redhat.com>

Thanks
Laszlo

>  
>  #define FW_CFG_ORDER_OVERRIDE_VGA    70
>  #define FW_CFG_ORDER_OVERRIDE_NIC    80
> @@ -24,6 +26,8 @@ typedef struct fw_cfg_file FWCfgFile;
>  void fw_cfg_set_order_override(FWCfgState *fw_cfg, int order);
>  void fw_cfg_reset_order_override(FWCfgState *fw_cfg);
>  
> +typedef struct fw_cfg_file FWCfgFile;
> +
>  typedef struct FWCfgFiles {
>      uint32_t  count;
>      FWCfgFile f[];
> @@ -34,6 +38,8 @@ typedef struct fw_cfg_dma_access FWCfgDmaAccess;
>  typedef void (*FWCfgCallback)(void *opaque);
>  typedef void (*FWCfgWriteCallback)(void *opaque, off_t start, size_t len);
>  
> +typedef struct FWCfgEntry FWCfgEntry;
> +
>  struct FWCfgState {
>      /*< private >*/
>      SysBusDevice parent_obj;
> diff --git a/include/qemu/typedefs.h b/include/qemu/typedefs.h
> index 3a5ca74bd3..1c294c296c 100644
> --- a/include/qemu/typedefs.h
> +++ b/include/qemu/typedefs.h
> @@ -31,10 +31,6 @@ typedef struct DriveInfo DriveInfo;
>  typedef struct Error Error;
>  typedef struct EventNotifier EventNotifier;
>  typedef struct FlatView FlatView;
> -typedef struct FWCfgEntry FWCfgEntry;
> -typedef struct FWCfgIoState FWCfgIoState;
> -typedef struct FWCfgMemState FWCfgMemState;
> -typedef struct FWCfgState FWCfgState;
>  typedef struct HCIInfo HCIInfo;
>  typedef struct HVFX86EmulatorState HVFX86EmulatorState;
>  typedef struct I2CBus I2CBus;
>