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Commit b3d0f789 authored by Jason A. Donenfeld's avatar Jason A. Donenfeld Committed by Theodore Ts'o
Browse files

net/neighbor: use get_random_u32 for 32-bit hash random 



Using get_random_u32 here is faster, more fitting of the use case, and
just as cryptographically secure. It also has the benefit of providing
better randomness at early boot, which is when many of these structures
are assigned.

Signed-off-by: default avatarJason A. Donenfeld <Jason@zx2c4.com>
Cc: David Miller <davem@davemloft.net>
Signed-off-by: default avatarTheodore Ts'o <tytso@mit.edu>
parent d48ad080

net/core/neighbour.c

+1 −2
Original line number Diff line number Diff line
@@ -312,8 +312,7 @@ static struct neighbour *neigh_alloc(struct neigh_table *tbl, struct net_device 


static void neigh_get_hash_rnd(u32 *x)

{

	get_random_bytes(x, sizeof(*x));

	*x |= 1;

	*x = get_random_u32() | 1;

}



static struct neigh_hash_table *neigh_hash_alloc(unsigned int shift)