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-rw-r--r--lib/random32.c13
1 files changed, 9 insertions, 4 deletions
diff --git a/lib/random32.c b/lib/random32.c
index ec7f81d3fb18..ca87d86992bd 100644
--- a/lib/random32.c
+++ b/lib/random32.c
@@ -97,13 +97,18 @@ EXPORT_SYMBOL(random32);
97 * @seed: seed value 97 * @seed: seed value
98 * 98 *
99 * Add some additional seeding to the random32() pool. 99 * Add some additional seeding to the random32() pool.
100 * Note: this pool is per cpu so it only affects current CPU.
101 */ 100 */
102void srandom32(u32 entropy) 101void srandom32(u32 entropy)
103{ 102{
104 struct rnd_state *state = &get_cpu_var(net_rand_state); 103 int i;
105 __set_random32(state, state->s1 ^ entropy); 104 /*
106 put_cpu_var(state); 105 * No locking on the CPUs, but then somewhat random results are, well,
106 * expected.
107 */
108 for_each_possible_cpu (i) {
109 struct rnd_state *state = &per_cpu(net_rand_state, i);
110 __set_random32(state, state->s1 ^ entropy);
111 }
107} 112}
108EXPORT_SYMBOL(srandom32); 113EXPORT_SYMBOL(srandom32);
109 114