The patch titled
Subject: libstring_helpers.c:string_get_size(): return void
has been added to the -mm tree. Its filename is
lib-string_get_size-return-void.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/lib-string_get_size-return-void.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/lib-string_get_size-return-void.patch
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------------------------------------------------------
From: Rasmus Villemoes <linux@xxxxxxxxxxxxxxxxxx>
Subject: libstring_helpers.c:string_get_size(): return void
string_get_size() was documented to return an error, but in fact always
returned 0. Since the output always fits in 9 bytes, just document that
and let callers do what they do now: pass a small stack buffer and ignore
the return value.
Signed-off-by: Rasmus Villemoes <linux@xxxxxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
include/linux/string_helpers.h | 4 ++--
lib/string_helpers.c | 10 ++++------
2 files changed, 6 insertions(+), 8 deletions(-)
diff -puN include/linux/string_helpers.h~lib-string_get_size-return-void include/linux/string_helpers.h
--- a/include/linux/string_helpers.h~lib-string_get_size-return-void
+++ a/include/linux/string_helpers.h
@@ -10,8 +10,8 @@ enum string_size_units {
STRING_UNITS_2, /* use binary powers of 2^10 */
};
-int string_get_size(u64 size, enum string_size_units units,
- char *buf, int len);
+void string_get_size(u64 size, enum string_size_units units,
+ char *buf, int len);
#define UNESCAPE_SPACE 0x01
#define UNESCAPE_OCTAL 0x02
diff -puN lib/string_helpers.c~lib-string_get_size-return-void lib/string_helpers.c
--- a/lib/string_helpers.c~lib-string_get_size-return-void
+++ a/lib/string_helpers.c
@@ -20,12 +20,12 @@
* @len: length of buffer
*
* This function returns a string formatted to 3 significant figures
- * giving the size in the required units. Returns 0 on success or
- * error on failure. @buf is always zero terminated.
+ * giving the size in the required units. @buf should have room for
+ * at least 9 bytes and will always be zero terminated.
*
*/
-int string_get_size(u64 size, const enum string_size_units units,
- char *buf, int len)
+void string_get_size(u64 size, const enum string_size_units units,
+ char *buf, int len)
{
static const char *const units_10[] = {
"B", "kB", "MB", "GB", "TB", "PB", "EB"
@@ -67,8 +67,6 @@ int string_get_size(u64 size, const enum
snprintf(buf, len, "%u%s %s", (u32)size,
tmp, units_str[units][i]);
-
- return 0;
}
EXPORT_SYMBOL(string_get_size);
_
Patches currently in -mm which might be from linux@xxxxxxxxxxxxxxxxxx are
origin.patch
lib-string_get_size-remove-redundant-prefixes.patch
lib-string_get_size-use-32-bit-arithmetic-when-possible.patch
lib-string_get_size-return-void.patch
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