diff mbox series

[v24,01/10] acpi: nvdimm: change NVDIMM_UUID_LE to a common macro

Message ID 20200217131248.28273-2-gengdongjiu@huawei.com
State New
Headers show
Series Add ARMv8 RAS virtualization support in QEMU | expand

Commit Message

Dongjiu Geng Feb. 17, 2020, 1:12 p.m. UTC
The little end UUID is used in many places, so make
NVDIMM_UUID_LE to a common macro to convert the UUID
to a little end array.

Signed-off-by: Dongjiu Geng <gengdongjiu@huawei.com>
Reviewed-by: Xiang Zheng <zhengxiang9@huawei.com>
---
 hw/acpi/nvdimm.c    | 8 ++------
 include/qemu/uuid.h | 5 +++++
 2 files changed, 7 insertions(+), 6 deletions(-)

Comments

Peter Maydell Feb. 21, 2020, 2:07 p.m. UTC | #1
On Mon, 17 Feb 2020 at 13:10, Dongjiu Geng <gengdongjiu@huawei.com> wrote:
>
> The little end UUID is used in many places, so make
> NVDIMM_UUID_LE to a common macro to convert the UUID
> to a little end array.
>
> Signed-off-by: Dongjiu Geng <gengdongjiu@huawei.com>
> Reviewed-by: Xiang Zheng <zhengxiang9@huawei.com>
> ---
>  hw/acpi/nvdimm.c    | 8 ++------
>  include/qemu/uuid.h | 5 +++++
>  2 files changed, 7 insertions(+), 6 deletions(-)
>
> diff --git a/hw/acpi/nvdimm.c b/hw/acpi/nvdimm.c
> index 9fdad6d..232b701 100644
> --- a/hw/acpi/nvdimm.c
> +++ b/hw/acpi/nvdimm.c
> @@ -27,6 +27,7 @@
>   */
>
>  #include "qemu/osdep.h"
> +#include "qemu/uuid.h"
>  #include "hw/acpi/acpi.h"
>  #include "hw/acpi/aml-build.h"
>  #include "hw/acpi/bios-linker-loader.h"
> @@ -60,17 +61,12 @@ static GSList *nvdimm_get_device_list(void)
>      return list;
>  }
>
> -#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, \
> -     (b) & 0xff, ((b) >> 8) & 0xff, (c) & 0xff, ((c) >> 8) & 0xff,          \
> -     (d0), (d1), (d2), (d3), (d4), (d5), (d6), (d7) }
> -
>  /*
>   * define Byte Addressable Persistent Memory (PM) Region according to
>   * ACPI 6.0: 5.2.25.1 System Physical Address Range Structure.
>   */
>  static const uint8_t nvdimm_nfit_spa_uuid[] =
> -      NVDIMM_UUID_LE(0x66f0d379, 0xb4f3, 0x4074, 0xac, 0x43, 0x0d, 0x33,
> +      UUID_LE(0x66f0d379, 0xb4f3, 0x4074, 0xac, 0x43, 0x0d, 0x33,
>                       0x18, 0xb7, 0x8c, 0xdb);

You need to fix up the indentation on this following line.

>
>  /*
> diff --git a/include/qemu/uuid.h b/include/qemu/uuid.h
> index 129c45f..bd38af5 100644
> --- a/include/qemu/uuid.h
> +++ b/include/qemu/uuid.h
> @@ -34,6 +34,11 @@ typedef struct {
>      };
>  } QemuUUID;
>
> +#define UUID_LE(a, b, c, d0, d1, d2, d3, d4, d5, d6, d7)             \
> +  { (a) & 0xff, ((a) >> 8) & 0xff, ((a) >> 16) & 0xff, ((a) >> 24) & 0xff, \
> +     (b) & 0xff, ((b) >> 8) & 0xff, (c) & 0xff, ((c) >> 8) & 0xff,          \
> +     (d0), (d1), (d2), (d3), (d4), (d5), (d6), (d7) }
> +

If you want to make this a macro in a visible-to-the-rest-of-QEMU
header file, can you provide a documentation comment please that
describes what the macro is for? It would also be useful to
give the arguments (which should be documented in the doc comment)
more descriptive names than a, b, c...

>  #define UUID_FMT "%02hhx%02hhx%02hhx%02hhx-" \
>                   "%02hhx%02hhx-%02hhx%02hhx-" \
>                   "%02hhx%02hhx-" \
> --
> 1.8.3.1


thanks
-- PMM
diff mbox series

Patch

diff --git a/hw/acpi/nvdimm.c b/hw/acpi/nvdimm.c
index 9fdad6d..232b701 100644
--- a/hw/acpi/nvdimm.c
+++ b/hw/acpi/nvdimm.c
@@ -27,6 +27,7 @@ 
  */
 
 #include "qemu/osdep.h"
+#include "qemu/uuid.h"
 #include "hw/acpi/acpi.h"
 #include "hw/acpi/aml-build.h"
 #include "hw/acpi/bios-linker-loader.h"
@@ -60,17 +61,12 @@  static GSList *nvdimm_get_device_list(void)
     return list;
 }
 
-#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, \
-     (b) & 0xff, ((b) >> 8) & 0xff, (c) & 0xff, ((c) >> 8) & 0xff,          \
-     (d0), (d1), (d2), (d3), (d4), (d5), (d6), (d7) }
-
 /*
  * define Byte Addressable Persistent Memory (PM) Region according to
  * ACPI 6.0: 5.2.25.1 System Physical Address Range Structure.
  */
 static const uint8_t nvdimm_nfit_spa_uuid[] =
-      NVDIMM_UUID_LE(0x66f0d379, 0xb4f3, 0x4074, 0xac, 0x43, 0x0d, 0x33,
+      UUID_LE(0x66f0d379, 0xb4f3, 0x4074, 0xac, 0x43, 0x0d, 0x33,
                      0x18, 0xb7, 0x8c, 0xdb);
 
 /*
diff --git a/include/qemu/uuid.h b/include/qemu/uuid.h
index 129c45f..bd38af5 100644
--- a/include/qemu/uuid.h
+++ b/include/qemu/uuid.h
@@ -34,6 +34,11 @@  typedef struct {
     };
 } QemuUUID;
 
+#define UUID_LE(a, b, c, d0, d1, d2, d3, d4, d5, d6, d7)             \
+  { (a) & 0xff, ((a) >> 8) & 0xff, ((a) >> 16) & 0xff, ((a) >> 24) & 0xff, \
+     (b) & 0xff, ((b) >> 8) & 0xff, (c) & 0xff, ((c) >> 8) & 0xff,          \
+     (d0), (d1), (d2), (d3), (d4), (d5), (d6), (d7) }
+
 #define UUID_FMT "%02hhx%02hhx%02hhx%02hhx-" \
                  "%02hhx%02hhx-%02hhx%02hhx-" \
                  "%02hhx%02hhx-" \