diff options
Diffstat (limited to 'include/linux/random.h')
-rw-r--r-- | include/linux/random.h | 14 |
1 files changed, 10 insertions, 4 deletions
diff --git a/include/linux/random.h b/include/linux/random.h index 6312dd9ba449..4002b3df4c85 100644 --- a/include/linux/random.h +++ b/include/linux/random.h | |||
@@ -29,8 +29,13 @@ unsigned long randomize_range(unsigned long start, unsigned long end, unsigned l | |||
29 | u32 prandom_u32(void); | 29 | u32 prandom_u32(void); |
30 | void prandom_bytes(void *buf, int nbytes); | 30 | void prandom_bytes(void *buf, int nbytes); |
31 | void prandom_seed(u32 seed); | 31 | void prandom_seed(u32 seed); |
32 | void prandom_reseed_late(void); | ||
32 | 33 | ||
33 | u32 prandom_u32_state(struct rnd_state *); | 34 | struct rnd_state { |
35 | __u32 s1, s2, s3, s4; | ||
36 | }; | ||
37 | |||
38 | u32 prandom_u32_state(struct rnd_state *state); | ||
34 | void prandom_bytes_state(struct rnd_state *state, void *buf, int nbytes); | 39 | void prandom_bytes_state(struct rnd_state *state, void *buf, int nbytes); |
35 | 40 | ||
36 | /* | 41 | /* |
@@ -50,9 +55,10 @@ static inline void prandom_seed_state(struct rnd_state *state, u64 seed) | |||
50 | { | 55 | { |
51 | u32 i = (seed >> 32) ^ (seed << 10) ^ seed; | 56 | u32 i = (seed >> 32) ^ (seed << 10) ^ seed; |
52 | 57 | ||
53 | state->s1 = __seed(i, 1); | 58 | state->s1 = __seed(i, 2U); |
54 | state->s2 = __seed(i, 7); | 59 | state->s2 = __seed(i, 8U); |
55 | state->s3 = __seed(i, 15); | 60 | state->s3 = __seed(i, 16U); |
61 | state->s4 = __seed(i, 128U); | ||
56 | } | 62 | } |
57 | 63 | ||
58 | #ifdef CONFIG_ARCH_RANDOM | 64 | #ifdef CONFIG_ARCH_RANDOM |