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1dff46d69 lib/kstrtox: common code between kstrto*() and simple_strto*() functions ... Browse Code »

Currently termination logic (\0 or \n\0) is hardcoded in _kstrtoull(),
avoid that for code reuse between kstrto*() and simple_strtoull().
Essentially, make them different only in termination logic.

simple_strtoull() (and scanf(), BTW) ignores integer overflow, that's a
bug we currently don't have guts to fix, making KSTRTOX_OVERFLOW hack
necessary.

Almost forgot: patch shrinks code size by about ~80 bytes on x86_64.

Signed-off-by: Alexey Dobriyan
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds

Alexey Dobriyan
2011-11-01 08:30:56 +0800

kstrtox.h 254 Bytes

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#ifndef _LIB_KSTRTOX_H
#define _LIB_KSTRTOX_H

#define KSTRTOX_OVERFLOW	(1U << 31)
const char *_parse_integer_fixup_radix(const char *s, unsigned int *base);
unsigned int _parse_integer(const char *s, unsigned int base, unsigned long long *res);

#endif