On 10/7/15 6:43 AM, Daniel Borkmann wrote:
+void prandom_init_state_once(void *pcpu_state);
+
+#define prandom_init_once(pcpu_state) \
+ ({ do_once(prandom_init_state_once, (pcpu_state)); })
/**
* prandom_u32_max - returns a pseudo-random number in interval [0, ep_ro)
diff --git a/lib/random32.c b/lib/random32.c
index 36c09fb..b166237 100644
--- a/lib/random32.c
+++ b/lib/random32.c
@@ -256,6 +256,11 @@ static void prandom_seed_full_state(struct rnd_state
__percpu *pcpu_state)
}
}
+void prandom_init_state_once(void *pcpu_state)
+{
+ prandom_seed_full_state((struct rnd_state __percpu *)pcpu_state);
+}
+
prandom_seed_full_state() is likely not inlined in the above.
Why introduce this helper instead of making prandom_seed_full_state()
global? with my other suggestion the void cast will be avoided as well
and compiler will do type checking.
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