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include/linux/genhd.h: move to use generic UUID library

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UUID library provides uuid_be type and uuid_be_to_bin() function.  This
substitutes open coded variant by generic library calls.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Matt Fleming <matt@codeblueprint.co.uk>
Cc: Dmitry Kasatkin <dmitry.kasatkin@gmail.com>
Cc: Mimi Zohar <zohar@linux.vnet.ibm.com>
Cc: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: "Theodore Ts'o" <tytso@mit.edu>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Andy Shevchenko 2016-05-20 17:01:24 -07:00 committed by Linus Torvalds
parent 8236431d8d
commit 6357978575
1 changed files with 3 additions and 20 deletions
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23
include/linux/genhd.h
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@ -14,6 +14,7 @@
#include <linux/rcupdate.h>
#include <linux/slab.h>
#include <linux/percpu-refcount.h>
#include <linux/uuid.h>
#ifdef CONFIG_BLOCK
@ -93,7 +94,7 @@ struct disk_stats {
* Enough for the string representation of any kind of UUID plus NULL.
* EFI UUID is 36 characters. MSDOS UUID is 11 characters.
*/
#define PARTITION_META_INFO_UUIDLTH 37
#define PARTITION_META_INFO_UUIDLTH (UUID_STRING_LEN + 1)
struct partition_meta_info {
char uuid[PARTITION_META_INFO_UUIDLTH];
@ -228,27 +229,9 @@ static inline struct gendisk *part_to_disk(struct hd_struct *part)
return NULL;
}
static inline void part_pack_uuid(const u8 *uuid_str, u8 *to)
{
int i;
for (i = 0; i < 16; ++i) {
*to++ = (hex_to_bin(*uuid_str) << 4) |
(hex_to_bin(*(uuid_str + 1)));
uuid_str += 2;
switch (i) {
case 3:
case 5:
case 7:
case 9:
uuid_str++;
continue;
}
}
}
static inline int blk_part_pack_uuid(const u8 *uuid_str, u8 *to)
{
part_pack_uuid(uuid_str, to);
uuid_be_to_bin(uuid_str, (uuid_be *)to);
return 0;
}