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authormpi <mpi@openbsd.org>2014-03-19 10:09:19 +0000
committermpi <mpi@openbsd.org>2014-03-19 10:09:19 +0000
commit6da4b19dd192d05212a0bb90172069f13d0a9559 (patch)
tree702a20faa01285fb6c3408d72743ef90c645f05a /sys/dev/usb/if_uath.c
parentupd(4) attaches at uhidev(4), ok andre@ (diff)
downloadwireguard-openbsd-6da4b19dd192d05212a0bb90172069f13d0a9559.tar.xz
wireguard-openbsd-6da4b19dd192d05212a0bb90172069f13d0a9559.zip
Stop abusing the rcvif pointer to pass wireless nodes down to the
driver start routines. Instead add & use a pointer in the pkthdr since we don't want the overhead of using a mbuf_tags(9). claudio@ pointed out that other subsystems might want to use this pointer too, so here's a new cookie! ok claudio@, mikeb@, deraadt@
Diffstat (limited to 'sys/dev/usb/if_uath.c')
-rw-r--r--sys/dev/usb/if_uath.c5
1 files changed, 2 insertions, 3 deletions
diff --git a/sys/dev/usb/if_uath.c b/sys/dev/usb/if_uath.c
index ec6852209d2..3b7d76f84e2 100644
--- a/sys/dev/usb/if_uath.c
+++ b/sys/dev/usb/if_uath.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: if_uath.c,v 1.57 2014/03/07 18:39:02 mpi Exp $ */
+/* $OpenBSD: if_uath.c,v 1.58 2014/03/19 10:09:19 mpi Exp $ */
/*-
* Copyright (c) 2006
@@ -1492,8 +1492,7 @@ uath_start(struct ifnet *ifp)
}
IF_DEQUEUE(&ic->ic_mgtq, m0);
- ni = (struct ieee80211_node *)m0->m_pkthdr.rcvif;
- m0->m_pkthdr.rcvif = NULL;
+ ni = m0->m_pkthdr.ph_cookie;
#if NBPFILTER > 0
if (ic->ic_rawbpf != NULL)
bpf_mtap(ic->ic_rawbpf, m0, BPF_DIRECTION_OUT);