From 80bd05f27fb4e26e765cfb5bde43166a48c218e1 Mon Sep 17 00:00:00 2001
From: Marek Szyprowski <m.szyprowski@samsung.com>
Date: Wed, 23 Dec 2020 13:55:11 +0100
Subject: [PATCH] disk: dos: add some defines for the hardcoded numbers
Add some handy defines for some hardcoded magic numbers related to
extended partition handling.
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
---
disk/part_dos.c | 6 +++---
disk/part_dos.h | 3 +++
2 files changed, 6 insertions(+), 3 deletions(-)
diff --git a/disk/part_dos.c b/disk/part_dos.c
index ef706fb59c..20d35dc9cd 100644
--- a/disk/part_dos.c
+++ b/disk/part_dos.c
@@ -42,9 +42,9 @@ static inline unsigned int le32_to_int(unsigned char *le32)
static inline int is_extended(int part_type)
{
- return (part_type == 0x5 ||
- part_type == 0xf ||
- part_type == 0x85);
+ return (part_type == DOS_PART_TYPE_EXTENDED ||
+ part_type == DOS_PART_TYPE_EXTENDED_LBA ||
+ part_type == DOS_PART_TYPE_EXTENDED_LINUX);
}
static int get_bootable(dos_partition_t *p)
diff --git a/disk/part_dos.h b/disk/part_dos.h
index 434b021ae8..dd909a9317 100644
--- a/disk/part_dos.h
+++ b/disk/part_dos.h
@@ -15,6 +15,9 @@
#define DOS_PBR_MEDIA_TYPE_OFFSET 0x15
#define DOS_MBR 0
#define DOS_PBR 1
+#define DOS_PART_TYPE_EXTENDED 0x05
+#define DOS_PART_TYPE_EXTENDED_LBA 0x0F
+#define DOS_PART_TYPE_EXTENDED_LINUX 0x85
typedef struct dos_partition {
unsigned char boot_ind; /* 0x80 - active */
--
2.39.5