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lib/vsprintf.c: replace while with do-while in skip_atoi

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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>
This commit is contained in:
Rasmus Villemoes 2015-02-12 15:01:42 -08:00 committed by Linus Torvalds
parent 2aa2f9e21e
commit 43e5b666cf
1 changed files with 2 additions and 1 deletions
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3
lib/vsprintf.c
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@ -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;
}