[PATCH v25 01/10] acpi: nvdimm: change NVDIMM_UUID_LE to a common macro

[Dongjiu Geng <gengdongjiu@huawei.com>]

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.

Reviewed-by: Xiang Zheng <zhengxiang9@huawei.com>
Signed-off-by: Dongjiu Geng <gengdongjiu@huawei.com>
---
 hw/acpi/nvdimm.c    | 10 +++-------
 include/qemu/uuid.h |  9 +++++++++
 2 files changed, 12 insertions(+), 7 deletions(-)

diff --git a/hw/acpi/nvdimm.c b/hw/acpi/nvdimm.c
index eb6a37b..a747c63 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"
@@ -34,18 +35,13 @@
 #include "hw/mem/nvdimm.h"
 #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, \
-     (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,
-                     0x18, 0xb7, 0x8c, 0xdb);
+      UUID_LE(0x66f0d379, 0xb4f3, 0x4074, 0xac, 0x43, 0x0d, 0x33,
+              0x18, 0xb7, 0x8c, 0xdb);
 
 /*
  * NVDIMM Firmware Interface Table
diff --git a/include/qemu/uuid.h b/include/qemu/uuid.h
index 129c45f..c55541b 100644
--- a/include/qemu/uuid.h
+++ b/include/qemu/uuid.h
@@ -34,6 +34,15 @@ typedef struct {
     };
 } QemuUUID;
 
+/**
+ * convert UUID to little-endian array
+ * The input parameter is the member of  UUID
+ */
+#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-" \
-- 
1.8.3.1