diff options
| author | Rasmus Villemoes <linux@rasmusvillemoes.dk> | 2015-02-13 02:01:42 +0300 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2015-02-13 05:54:13 +0300 |
| commit | 43e5b666cf25516b5c27cd10c47d287dc9d1f376 (patch) | |
| tree | 1347a5fca8c89e284e3548e9059a3e1f6aee1e84 | |
| parent | 2aa2f9e21e4eb25c720b2e7d80f8929638f6ad73 (diff) | |
| download | linux-43e5b666cf25516b5c27cd10c47d287dc9d1f376.tar.xz | |
lib/vsprintf.c: replace while with do-while in skip_atoi
All callers of skip_atoi have already checked for the first character
being a digit. In this case, gcc generates simpler code for a do
while-loop.
Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Cc: Jiri Kosina <jkosina@suse.cz>
Cc: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -rw-r--r-- | lib/vsprintf.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/lib/vsprintf.c b/lib/vsprintf.c index cf12ba86205c..602d2081e713 100644 --- a/lib/vsprintf.c +++ b/lib/vsprintf.c @@ -114,8 +114,9 @@ int skip_atoi(const char **s) { int i = 0; - while (isdigit(**s)) + do { i = i*10 + *((*s)++) - '0'; + } while (isdigit(**s)); return i; } |