Re: [B.A.T.M.A.N.] [PATCH 03/11] batman-adv: randomize initial seqno to avoid collision

From: Antonio Quartulli ordex@autistici.org Date: Tue, 17 Apr 2012 13:58:19 +0200

@@ -33,6 +33,11 @@ static void bat_iv_ogm_iface_enable(struct hard_iface *hard_iface) { struct batman_ogm_packet *batman_ogm_packet;

• unsigned long random_seqno;
• /* randomize initial seqno to avoid collision */
• get_random_bytes(&random_seqno, sizeof(unsigned long));
• atomic_set(&hard_iface->seqno, (uint32_t)random_seqno);

This is silly.

Just use "uint32_t" for the type of random_seqno and the sizeof passed to get_random_bytes.

And here comes the magic part.

Amazing, no ugly and pointless casts needed!