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Since if_txp doesn't contain locking or run with INTR_MPSAFE, mark

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the interface as IFF_NEEDSGIANT so if_start is run holding Giant.

Note: mutexes are initialized in the softc for this driver, but the
locking appears inadequate to allow Giant-free operation.
This commit is contained in:
Robert Watson 2004-08-13 23:53:36 +00:00
parent 85d5028a78
commit 095f2ac443
1 changed files with 2 additions and 1 deletions
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3
sys/dev/txp/if_txp.c
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@ -332,7 +332,8 @@ txp_attach(dev)
ifp->if_softc = sc;
if_initname(ifp, device_get_name(dev), device_get_unit(dev));
ifp->if_mtu = ETHERMTU;
ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST |
IFF_NEEDSGIANT;
ifp->if_ioctl = txp_ioctl;
ifp->if_start = txp_start;
ifp->if_watchdog = txp_watchdog;