diff options
| author | rwatson <rwatson@FreeBSD.org> | 2005-08-03 00:18:35 +0000 |
|---|---|---|
| committer | rwatson <rwatson@FreeBSD.org> | 2005-08-03 00:18:35 +0000 |
| commit | 9918d13b80941400bfab87834b1e2f1eea58c7c7 (patch) | |
| tree | 9a4e586ffbcd1450917ee5e388a4e1eb38254e32 /sys/dev/usb/if_kue.c | |
| parent | efa13b9da9fc80838e2c73140ae27393b3660da4 (diff) | |
| download | FreeBSD-src-9918d13b80941400bfab87834b1e2f1eea58c7c7.zip FreeBSD-src-9918d13b80941400bfab87834b1e2f1eea58c7c7.tar.gz | |
Modify device drivers supporting multicast addresses to lock if_addr_mtx
over iteration of their multicast address lists when synchronizing the
hardware address filter with the network stack-maintained list.
Problem reported by: Ed Maste (emaste at phaedrus dot sandvine dot ca>
MFC after: 1 week
Diffstat (limited to 'sys/dev/usb/if_kue.c')
| -rw-r--r-- | sys/dev/usb/if_kue.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/sys/dev/usb/if_kue.c b/sys/dev/usb/if_kue.c index b4c65e4..fce9adf 100644 --- a/sys/dev/usb/if_kue.c +++ b/sys/dev/usb/if_kue.c @@ -327,6 +327,7 @@ kue_setmulti(struct kue_softc *sc) sc->kue_rxfilt &= ~KUE_RXFILT_ALLMULTI; + IF_ADDR_LOCK(ifp); #if __FreeBSD_version >= 500000 TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) #else @@ -345,6 +346,7 @@ kue_setmulti(struct kue_softc *sc) KUE_MCFILT(sc, i), ETHER_ADDR_LEN); i++; } + IF_ADDR_UNLOCK(ifp); if (i == KUE_MCFILTCNT(sc)) sc->kue_rxfilt |= KUE_RXFILT_ALLMULTI; |
