diff options
| author | Robert Watson <rwatson@FreeBSD.org> | 2005-08-03 00:18:35 +0000 |
|---|---|---|
| committer | Robert Watson <rwatson@FreeBSD.org> | 2005-08-03 00:18:35 +0000 |
| commit | 13b203d0d78cc08a7e0da8e8d5eb8c1a5d94ab69 (patch) | |
| tree | 9a4e586ffbcd1450917ee5e388a4e1eb38254e32 /sys/dev/owi | |
| parent | bccb41014af4667b1cf2878456f5a8a854acf1f7 (diff) | |
| download | src-13b203d0d78cc08a7e0da8e8d5eb8c1a5d94ab69.tar.gz src-13b203d0d78cc08a7e0da8e8d5eb8c1a5d94ab69.zip | |
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
Notes
Notes:
svn path=/head/; revision=148654
Diffstat (limited to 'sys/dev/owi')
| -rw-r--r-- | sys/dev/owi/if_owi.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/sys/dev/owi/if_owi.c b/sys/dev/owi/if_owi.c index 3cb1c48cbca1..a0d8bc0c0df7 100644 --- a/sys/dev/owi/if_owi.c +++ b/sys/dev/owi/if_owi.c @@ -1213,6 +1213,7 @@ wi_setmulti(sc) return; } + IF_ADDR_LOCK(ifp); TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) { if (ifma->ifma_addr->sa_family != AF_LINK) continue; @@ -1225,6 +1226,7 @@ wi_setmulti(sc) break; } } + IF_ADDR_UNLOCK(ifp); mcast.wi_len = (i * 3) + 1; wi_write_record(sc, (struct wi_ltv_gen *)&mcast); |