From: Michael Ellerman Date: Thu, 12 May 2005 07:47:27 +0000 (+1000) Subject: [PATCH] iseries_veth: Don't send packets to LPARs which aren't up X-Git-Tag: v2.6.12-rc6~145^2~3^2~3 X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f27eff1ffd65236b8e421188f76ad1b0b94e06eb;p=linux-2.6 [PATCH] iseries_veth: Don't send packets to LPARs which aren't up Hi Andrew, Jeff, The iseries_veth driver has a logic bug which means it will erroneously send packets to LPARs for which we don't have a connection. This usually isn't a big problem because the Hypervisor call fails gracefully and we return, but if packets are TX'ed during the negotiation of the connection bad things might happen. Regardless, the right thing is to bail early if we know there's no connection. Signed-off-by: Michael Ellerman --- diff --git a/drivers/net/iseries_veth.c b/drivers/net/iseries_veth.c index 855f8b2cf1..7d0ef2969b 100644 --- a/drivers/net/iseries_veth.c +++ b/drivers/net/iseries_veth.c @@ -924,7 +924,7 @@ static int veth_transmit_to_one(struct sk_buff *skb, HvLpIndex rlp, spin_lock_irqsave(&cnx->lock, flags); - if (! cnx->state & VETH_STATE_READY) + if (! (cnx->state & VETH_STATE_READY)) goto drop; if ((skb->len - 14) > VETH_MAX_MTU)