prandom: remove next_pseudo_random32

next_pseudo_random32 implements a LCG with known bad statistical
properties and was only used in two pieces of testing code.

With no remaining users now, remove it.

Signed-off-by: Markus Theil <theil.markus@gmail.com>
Reviewed-by: Krzysztof Karas <krzysztof.karas@intel.com>
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>

diff --git a/include/linux/prandom.h b/include/linux/prandom.h
index f2ed5b72b3d6f21c2c893cf37153c8a565456c9c..ff7dcc3fa1057ae4b9a871ff4938345ad8d360d3 100644 (file)
--- a/include/linux/prandom.h
+++ b/include/linux/prandom.h
@@ -47,10 +47,4 @@ static inline void prandom_seed_state(struct rnd_state *state, u64 seed)
        state->s4 = __seed(i, 128U);
 }
 
-/* Pseudo random number generator from numerical recipes. */
-static inline u32 next_pseudo_random32(u32 seed)
-{
-       return seed * 1664525 + 1013904223;
-}
-
 #endif