move storage helpers to libbb.h

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

5 files changed, 17 insertions, 63 deletions

diff --git a/e2fsprogs/tune2fs.c b/e2fsprogs/tune2fs.c
index a1caf011c..f7fcd88bf 100644
--- a/e2fsprogs/tune2fs.c
+++ b/e2fsprogs/tune2fs.c
@@ -39,23 +39,6 @@
 #include <linux/fs.h>
 #include "bb_e2fs_defs.h"
 
-// storage helpers
-char BUG_wrong_field_size(void);
-#define STORE_LE(field, value) \
-do { \
-	if (sizeof(field) == 4) \
-		field = SWAP_LE32(value); \
-	else if (sizeof(field) == 2) \
-		field = SWAP_LE16(value); \
-	else if (sizeof(field) == 1) \
-		field = (value); \
-	else \
-		BUG_wrong_field_size(); \
-} while (0)
-
-#define FETCH_LE32(field) \
-	(sizeof(field) == 4 ? SWAP_LE32(field) : BUG_wrong_field_size())
-
 enum {
 	OPT_L = 1 << 0, // label
 	OPT_c = 1 << 1, // max mount count
diff --git a/include/libbb.h b/include/libbb.h
index 7cad12c44..61fa1e03e 100644
--- a/include/libbb.h
+++ b/include/libbb.h
@@ -2127,6 +2127,23 @@ extern const char bb_default_login_shell[] ALIGN1;
 # define FB_0 "/dev/fb0"
 #endif
 
+// storage helpers for mk*fs utilities
+char BUG_wrong_field_size(void);
+#define STORE_LE(field, value) \
+do { \
+	if (sizeof(field) == 4) \
+		field = SWAP_LE32((uint32_t)(value)); \
+	else if (sizeof(field) == 2) \
+		field = SWAP_LE16((uint16_t)(value)); \
+	else if (sizeof(field) == 1) \
+		field = (uint8_t)(value); \
+	else \
+		BUG_wrong_field_size(); \
+} while (0)
+
+#define FETCH_LE32(field) \
+	(sizeof(field) == 4 ? SWAP_LE32(field) : BUG_wrong_field_size())
+
 
 #define ARRAY_SIZE(x) ((unsigned)(sizeof(x) / sizeof((x)[0])))
 #define BUILD_BUG_ON(condition) ((void)sizeof(char[1 - 2*!!(condition)]))
diff --git a/util-linux/mkfs_ext2.c b/util-linux/mkfs_ext2.c
index f524bc239..bda168f1e 100644
--- a/util-linux/mkfs_ext2.c
+++ b/util-linux/mkfs_ext2.c
@@ -78,23 +78,6 @@
 #define EXT2_FLAGS_SIGNED_HASH   0x0001
 #define EXT2_FLAGS_UNSIGNED_HASH 0x0002
 
-// storage helpers
-char BUG_wrong_field_size(void);
-#define STORE_LE(field, value) \
-do { \
-	if (sizeof(field) == 4) \
-		field = SWAP_LE32((uint32_t)(value)); \
-	else if (sizeof(field) == 2) \
-		field = SWAP_LE16((uint16_t)(value)); \
-	else if (sizeof(field) == 1) \
-		field = (uint8_t)(value); \
-	else \
-		BUG_wrong_field_size(); \
-} while (0)
-
-#define FETCH_LE32(field) \
-	(sizeof(field) == 4 ? SWAP_LE32(field) : BUG_wrong_field_size())
-
 // All fields are little-endian
 struct ext2_dir {
 	uint32_t inode1;
diff --git a/util-linux/mkfs_reiser.c b/util-linux/mkfs_reiser.c
index 390aef86c..b4c8dda6f 100644
--- a/util-linux/mkfs_reiser.c
+++ b/util-linux/mkfs_reiser.c
@@ -28,22 +28,6 @@
 #include "libbb.h"
 #include <linux/fs.h>
 
-char BUG_wrong_field_size(void);
-#define STORE_LE(field, value) \
-do { \
-	if (sizeof(field) == 4) \
-		field = SWAP_LE32(value); \
-	else if (sizeof(field) == 2) \
-		field = SWAP_LE16(value); \
-	else if (sizeof(field) == 1) \
-		field = (value); \
-	else \
-		BUG_wrong_field_size(); \
-} while (0)
-
-#define FETCH_LE32(field) \
-	(sizeof(field) == 4 ? SWAP_LE32(field) : BUG_wrong_field_size())
-
 struct journal_params {
 	uint32_t jp_journal_1st_block;      /* where does journal start from on its device */
 	uint32_t jp_journal_dev;            /* journal device st_rdev */
diff --git a/util-linux/mkfs_vfat.c b/util-linux/mkfs_vfat.c
index 92f0e3b1a..6a6dc652f 100644
--- a/util-linux/mkfs_vfat.c
+++ b/util-linux/mkfs_vfat.c
@@ -206,19 +206,6 @@ static const char boot_code[] ALIGN1 =
 #define MARK_CLUSTER(cluster, value) \
 	((uint32_t *)fat)[cluster] = SWAP_LE32(value)
 
-void BUG_unsupported_field_size(void);
-#define STORE_LE(field, value) \
-do { \
-	if (sizeof(field) == 4) \
-		field = SWAP_LE32((uint32_t)(value)); \
-	else if (sizeof(field) == 2) \
-		field = SWAP_LE16((uint16_t)(value)); \
-	else if (sizeof(field) == 1) \
-		field = (uint8_t)(value); \
-	else \
-		BUG_unsupported_field_size(); \
-} while (0)
-
 /* compat:
  * mkdosfs 2.11 (12 Mar 2005)
  * Usage: mkdosfs [-A] [-c] [-C] [-v] [-I] [-l bad-block-file]