Index: head/sys/net/bpf.c =================================================================== --- head/sys/net/bpf.c +++ head/sys/net/bpf.c @@ -106,6 +106,7 @@ struct rwlock bif_lock; /* interface lock */ LIST_HEAD(, bpf_d) bif_wlist; /* writer-only list */ int bif_flags; /* Interface flags */ + struct bpf_if **bif_bpf; /* Pointer to pointer to us */ }; CTASSERT(offsetof(struct bpf_if, bif_ext) == 0); @@ -2563,6 +2564,7 @@ bp->bif_dlt = dlt; rw_init(&bp->bif_lock, "bpf interface lock"); KASSERT(*driverp == NULL, ("bpfattach2: driverp already initialized")); + bp->bif_bpf = driverp; *driverp = bp; BPF_LOCK(); @@ -2633,6 +2635,7 @@ */ BPFIF_WLOCK(bp); bp->bif_flags |= BPFIF_FLAG_DYING; + *bp->bif_bpf = NULL; BPFIF_WUNLOCK(bp); CTR4(KTR_NET, "%s: sheduling free for encap %d (%p) for if %p", @@ -2702,13 +2705,6 @@ nmatched++; } BPF_UNLOCK(); - - /* - * Note that we cannot zero other pointers to - * custom DLTs possibly used by given interface. - */ - if (nmatched != 0) - ifp->if_bpf = NULL; } /*