diff options
Diffstat (limited to 'include/linux/random.h')
| -rw-r--r-- | include/linux/random.h | 19 |
1 files changed, 0 insertions, 19 deletions
diff --git a/include/linux/random.h b/include/linux/random.h index bd954ecbef90..d1d680b9701d 100644 --- a/include/linux/random.h +++ b/include/linux/random.h @@ -116,25 +116,6 @@ static inline u32 get_random_u32_inclusive(u32 floor, u32 ceil) return floor + get_random_u32_below(ceil - floor + 1); } -/* - * On 64-bit architectures, protect against non-terminated C string overflows - * by zeroing out the first byte of the canary; this leaves 56 bits of entropy. - */ -#ifdef CONFIG_64BIT -# ifdef __LITTLE_ENDIAN -# define CANARY_MASK 0xffffffffffffff00UL -# else /* big endian, 64 bits: */ -# define CANARY_MASK 0x00ffffffffffffffUL -# endif -#else /* 32 bits: */ -# define CANARY_MASK 0xffffffffUL -#endif - -static inline unsigned long get_random_canary(void) -{ - return get_random_long() & CANARY_MASK; -} - void __init random_init_early(const char *command_line); void __init random_init(void); bool rng_is_initialized(void); |