diff options
| -rw-r--r-- | drivers/scsi/fcoe/fcoe_ctlr.c | 4 | ||||
| -rw-r--r-- | include/linux/random.h | 17 | ||||
| -rw-r--r-- | lib/interval_tree_test_main.c | 7 | ||||
| -rw-r--r-- | lib/random32.c | 48 | ||||
| -rw-r--r-- | lib/rbtree_test.c | 6 |
5 files changed, 45 insertions, 37 deletions
diff --git a/drivers/scsi/fcoe/fcoe_ctlr.c b/drivers/scsi/fcoe/fcoe_ctlr.c index 2ebe03a4b51d..4a909d7cfde1 100644 --- a/drivers/scsi/fcoe/fcoe_ctlr.c +++ b/drivers/scsi/fcoe/fcoe_ctlr.c @@ -2144,7 +2144,7 @@ static void fcoe_ctlr_vn_restart(struct fcoe_ctlr *fip) */ port_id = fip->port_id; if (fip->probe_tries) - port_id = prandom32(&fip->rnd_state) & 0xffff; + port_id = prandom_u32_state(&fip->rnd_state) & 0xffff; else if (!port_id) port_id = fip->lp->wwpn & 0xffff; if (!port_id || port_id == 0xffff) @@ -2169,7 +2169,7 @@ static void fcoe_ctlr_vn_restart(struct fcoe_ctlr *fip) static void fcoe_ctlr_vn_start(struct fcoe_ctlr *fip) { fip->probe_tries = 0; - prandom32_seed(&fip->rnd_state, fip->lp->wwpn); + prandom_seed_state(&fip->rnd_state, fip->lp->wwpn); fcoe_ctlr_vn_restart(fip); } diff --git a/include/linux/random.h b/include/linux/random.h index 6330ed47b38b..db6debc6649e 100644 --- a/include/linux/random.h +++ b/include/linux/random.h @@ -25,10 +25,17 @@ extern const struct file_operations random_fops, urandom_fops; unsigned int get_random_int(void); unsigned long randomize_range(unsigned long start, unsigned long end, unsigned long len); -u32 random32(void); -void srandom32(u32 seed); +u32 prandom_u32(void); +void prandom_seed(u32 seed); -u32 prandom32(struct rnd_state *); +/* + * These macros are preserved for backward compatibility and should be + * removed as soon as a transition is finished. + */ +#define random32() prandom_u32() +#define srandom32(seed) prandom_seed(seed) + +u32 prandom_u32_state(struct rnd_state *); /* * Handle minimum values for seeds @@ -39,11 +46,11 @@ static inline u32 __seed(u32 x, u32 m) } /** - * prandom32_seed - set seed for prandom32(). + * prandom_seed_state - set seed for prandom_u32_state(). * @state: pointer to state structure to receive the seed. * @seed: arbitrary 64-bit value to use as a seed. */ -static inline void prandom32_seed(struct rnd_state *state, u64 seed) +static inline void prandom_seed_state(struct rnd_state *state, u64 seed) { u32 i = (seed >> 32) ^ (seed << 10) ^ seed; diff --git a/lib/interval_tree_test_main.c b/lib/interval_tree_test_main.c index b25903987f7a..245900b98c8e 100644 --- a/lib/interval_tree_test_main.c +++ b/lib/interval_tree_test_main.c @@ -30,7 +30,8 @@ static void init(void) { int i; for (i = 0; i < NODES; i++) { - u32 a = prandom32(&rnd), b = prandom32(&rnd); + u32 a = prandom_u32_state(&rnd); + u32 b = prandom_u32_state(&rnd); if (a <= b) { nodes[i].start = a; nodes[i].last = b; @@ -40,7 +41,7 @@ static void init(void) } } for (i = 0; i < SEARCHES; i++) - queries[i] = prandom32(&rnd); + queries[i] = prandom_u32_state(&rnd); } static int interval_tree_test_init(void) @@ -51,7 +52,7 @@ static int interval_tree_test_init(void) printk(KERN_ALERT "interval tree insert/remove"); - prandom32_seed(&rnd, 3141592653589793238ULL); + prandom_seed_state(&rnd, 3141592653589793238ULL); init(); time1 = get_cycles(); diff --git a/lib/random32.c b/lib/random32.c index 938bde5876ac..d1830fade915 100644 --- a/lib/random32.c +++ b/lib/random32.c @@ -42,13 +42,13 @@ static DEFINE_PER_CPU(struct rnd_state, net_rand_state); /** - * prandom32 - seeded pseudo-random number generator. + * prandom_u32_state - seeded pseudo-random number generator. * @state: pointer to state structure holding seeded state. * * This is used for pseudo-randomness with no outside seeding. - * For more random results, use random32(). + * For more random results, use prandom_u32(). */ -u32 prandom32(struct rnd_state *state) +u32 prandom_u32_state(struct rnd_state *state) { #define TAUSWORTHE(s,a,b,c,d) ((s&c)<<d) ^ (((s <<a) ^ s)>>b) @@ -58,32 +58,32 @@ u32 prandom32(struct rnd_state *state) return (state->s1 ^ state->s2 ^ state->s3); } -EXPORT_SYMBOL(prandom32); +EXPORT_SYMBOL(prandom_u32_state); /** - * random32 - pseudo random number generator + * prandom_u32 - pseudo random number generator * * A 32 bit pseudo-random number is generated using a fast * algorithm suitable for simulation. This algorithm is NOT * considered safe for cryptographic use. */ -u32 random32(void) +u32 prandom_u32(void) { unsigned long r; struct rnd_state *state = &get_cpu_var(net_rand_state); - r = prandom32(state); + r = prandom_u32_state(state); put_cpu_var(state); return r; } -EXPORT_SYMBOL(random32); +EXPORT_SYMBOL(prandom_u32); /** - * srandom32 - add entropy to pseudo random number generator + * prandom_seed - add entropy to pseudo random number generator * @seed: seed value * - * Add some additional seeding to the random32() pool. + * Add some additional seeding to the prandom pool. */ -void srandom32(u32 entropy) +void prandom_seed(u32 entropy) { int i; /* @@ -95,13 +95,13 @@ void srandom32(u32 entropy) state->s1 = __seed(state->s1 ^ entropy, 1); } } -EXPORT_SYMBOL(srandom32); +EXPORT_SYMBOL(prandom_seed); /* * Generate some initially weak seeding values to allow - * to start the random32() engine. + * to start the prandom_u32() engine. */ -static int __init random32_init(void) +static int __init prandom_init(void) { int i; @@ -114,22 +114,22 @@ static int __init random32_init(void) state->s3 = __seed(LCG(state->s2), 15); /* "warm it up" */ - prandom32(state); - prandom32(state); - prandom32(state); - prandom32(state); - prandom32(state); - prandom32(state); + prandom_u32_state(state); + prandom_u32_state(state); + prandom_u32_state(state); + prandom_u32_state(state); + prandom_u32_state(state); + prandom_u32_state(state); } return 0; } -core_initcall(random32_init); +core_initcall(prandom_init); /* * Generate better values after random number generator * is fully initialized. */ -static int __init random32_reseed(void) +static int __init prandom_reseed(void) { int i; @@ -143,8 +143,8 @@ static int __init random32_reseed(void) state->s3 = __seed(seeds[2], 15); /* mix it in */ - prandom32(state); + prandom_u32_state(state); } return 0; } -late_initcall(random32_reseed); +late_initcall(prandom_reseed); diff --git a/lib/rbtree_test.c b/lib/rbtree_test.c index d7f491a54579..af38aedbd874 100644 --- a/lib/rbtree_test.c +++ b/lib/rbtree_test.c @@ -96,8 +96,8 @@ static void init(void) { int i; for (i = 0; i < NODES; i++) { - nodes[i].key = prandom32(&rnd); - nodes[i].val = prandom32(&rnd); + nodes[i].key = prandom_u32_state(&rnd); + nodes[i].val = prandom_u32_state(&rnd); } } @@ -155,7 +155,7 @@ static int rbtree_test_init(void) printk(KERN_ALERT "rbtree testing"); - prandom32_seed(&rnd, 3141592653589793238ULL); + prandom_seed_state(&rnd, 3141592653589793238ULL); init(); time1 = get_cycles(); |