diff options
| -rw-r--r-- | include/linux/ctype.h | 9 | ||||
| -rw-r--r-- | lib/kstrtox.c | 5 | ||||
| -rw-r--r-- | lib/vsprintf.c | 23 |
3 files changed, 19 insertions, 18 deletions
diff --git a/include/linux/ctype.h b/include/linux/ctype.h index a3d6ee0044f9..8acfe312f947 100644 --- a/include/linux/ctype.h +++ b/include/linux/ctype.h @@ -52,4 +52,13 @@ static inline unsigned char __toupper(unsigned char c) #define tolower(c) __tolower(c) #define toupper(c) __toupper(c) +/* + * Fast implementation of tolower() for internal usage. Do not use in your + * code. + */ +static inline char _tolower(const char c) +{ + return c | 0x20; +} + #endif diff --git a/lib/kstrtox.c b/lib/kstrtox.c index 2dbae88090ac..5e066759f551 100644 --- a/lib/kstrtox.c +++ b/lib/kstrtox.c @@ -19,11 +19,6 @@ #include <linux/types.h> #include <asm/uaccess.h> -static inline char _tolower(const char c) -{ - return c | 0x20; -} - static int _kstrtoull(const char *s, unsigned int base, unsigned long long *res) { unsigned long long acc; diff --git a/lib/vsprintf.c b/lib/vsprintf.c index 4365df31a1d5..39e3e8f1d4ec 100644 --- a/lib/vsprintf.c +++ b/lib/vsprintf.c @@ -31,13 +31,10 @@ #include <asm/div64.h> #include <asm/sections.h> /* for dereference_function_descriptor() */ -/* Works only for digits and letters, but small and fast */ -#define TOLOWER(x) ((x) | 0x20) - static unsigned int simple_guess_base(const char *cp) { if (cp[0] == '0') { - if (TOLOWER(cp[1]) == 'x' && isxdigit(cp[2])) + if (_tolower(cp[1]) == 'x' && isxdigit(cp[2])) return 16; else return 8; @@ -59,13 +56,13 @@ unsigned long long simple_strtoull(const char *cp, char **endp, unsigned int bas if (!base) base = simple_guess_base(cp); - if (base == 16 && cp[0] == '0' && TOLOWER(cp[1]) == 'x') + if (base == 16 && cp[0] == '0' && _tolower(cp[1]) == 'x') cp += 2; while (isxdigit(*cp)) { unsigned int value; - value = isdigit(*cp) ? *cp - '0' : TOLOWER(*cp) - 'a' + 10; + value = isdigit(*cp) ? *cp - '0' : _tolower(*cp) - 'a' + 10; if (value >= base) break; result = result * base + value; @@ -1036,8 +1033,8 @@ precision: qualifier: /* get the conversion qualifier */ spec->qualifier = -1; - if (*fmt == 'h' || TOLOWER(*fmt) == 'l' || - TOLOWER(*fmt) == 'z' || *fmt == 't') { + if (*fmt == 'h' || _tolower(*fmt) == 'l' || + _tolower(*fmt) == 'z' || *fmt == 't') { spec->qualifier = *fmt++; if (unlikely(spec->qualifier == *fmt)) { if (spec->qualifier == 'l') { @@ -1104,7 +1101,7 @@ qualifier: spec->type = FORMAT_TYPE_LONG; else spec->type = FORMAT_TYPE_ULONG; - } else if (TOLOWER(spec->qualifier) == 'z') { + } else if (_tolower(spec->qualifier) == 'z') { spec->type = FORMAT_TYPE_SIZE_T; } else if (spec->qualifier == 't') { spec->type = FORMAT_TYPE_PTRDIFF; @@ -1263,7 +1260,7 @@ int vsnprintf(char *buf, size_t size, const char *fmt, va_list args) if (qualifier == 'l') { long *ip = va_arg(args, long *); *ip = (str - buf); - } else if (TOLOWER(qualifier) == 'z') { + } else if (_tolower(qualifier) == 'z') { size_t *ip = va_arg(args, size_t *); *ip = (str - buf); } else { @@ -1550,7 +1547,7 @@ do { \ void *skip_arg; if (qualifier == 'l') skip_arg = va_arg(args, long *); - else if (TOLOWER(qualifier) == 'z') + else if (_tolower(qualifier) == 'z') skip_arg = va_arg(args, size_t *); else skip_arg = va_arg(args, int *); @@ -1856,8 +1853,8 @@ int vsscanf(const char *buf, const char *fmt, va_list args) /* get conversion qualifier */ qualifier = -1; - if (*fmt == 'h' || TOLOWER(*fmt) == 'l' || - TOLOWER(*fmt) == 'z') { + if (*fmt == 'h' || _tolower(*fmt) == 'l' || + _tolower(*fmt) == 'z') { qualifier = *fmt++; if (unlikely(qualifier == *fmt)) { if (qualifier == 'h') { |