[Xen-devel] [PATCH 03/14] xen: arm: rename 32-bit specific zImage field offset constants

[Ian Campbell <ijc@xxxxxxxxxxxxxx>]

From: Ian Campbell <ian.campbell@xxxxxxxxxx>

This will help avoid confusion when 64-bit Image support is added.

Signed-off-by: Ian Campbell <ian.campbell@xxxxxxxxxx>
---
 xen/arch/arm/kernel.c |   28 ++++++++++++++--------------
 1 file changed, 14 insertions(+), 14 deletions(-)

diff --git a/xen/arch/arm/kernel.c b/xen/arch/arm/kernel.c
index 8f4a60d..e7f34a4 100644
--- a/xen/arch/arm/kernel.c
+++ b/xen/arch/arm/kernel.c
@@ -19,12 +19,12 @@
 #define KERNEL_FLASH_ADDRESS 0x00000000UL
 #define KERNEL_FLASH_SIZE    0x00800000UL
 
-#define ZIMAGE_MAGIC_OFFSET 0x24
-#define ZIMAGE_START_OFFSET 0x28
-#define ZIMAGE_END_OFFSET   0x2c
-#define ZIMAGE_HEADER_LEN   0x30
+#define ZIMAGE32_MAGIC_OFFSET 0x24
+#define ZIMAGE32_START_OFFSET 0x28
+#define ZIMAGE32_END_OFFSET   0x2c
+#define ZIMAGE32_HEADER_LEN   0x30
 
-#define ZIMAGE_MAGIC 0x016f2818
+#define ZIMAGE32_MAGIC 0x016f2818
 
 struct minimal_dtb_header {
     uint32_t magic;
@@ -99,26 +99,26 @@ static void kernel_zimage_load(struct kernel_info *info)
     }
 }
 
-/**
- * Check the image is a zImage and return the load address and length
+/*
+ * Check if the image is a 32-bit zImage and setup kernel_info
  */
-static int kernel_try_zimage_prepare(struct kernel_info *info,
+static int kernel_try_zimage32_prepare(struct kernel_info *info,
                                      paddr_t addr, paddr_t size)
 {
-    uint32_t zimage[ZIMAGE_HEADER_LEN/4];
+    uint32_t zimage[ZIMAGE32_HEADER_LEN/4];
     uint32_t start, end;
     struct minimal_dtb_header dtb_hdr;
 
-    if ( size < ZIMAGE_HEADER_LEN )
+    if ( size < ZIMAGE32_HEADER_LEN )
         return -EINVAL;
 
     copy_from_paddr(zimage, addr, sizeof(zimage), DEV_SHARED);
 
-    if (zimage[ZIMAGE_MAGIC_OFFSET/4] != ZIMAGE_MAGIC)
+    if (zimage[ZIMAGE32_MAGIC_OFFSET/4] != ZIMAGE32_MAGIC)
         return -EINVAL;
 
-    start = zimage[ZIMAGE_START_OFFSET/4];
-    end = zimage[ZIMAGE_END_OFFSET/4];
+    start = zimage[ZIMAGE32_START_OFFSET/4];
+    end = zimage[ZIMAGE32_END_OFFSET/4];
 
     if ( (end - start) > size )
         return -EINVAL;
@@ -224,7 +224,7 @@ int kernel_prepare(struct kernel_info *info)
         info->load_attr = BUFFERABLE;
     }
 
-    rc = kernel_try_zimage_prepare(info, start, size);
+    rc = kernel_try_zimage32_prepare(info, start, size);
     if (rc < 0)
         rc = kernel_try_elf_prepare(info, start, size);
 
-- 
1.7.10.4


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