From 1c9b281997b5876c0c8ed62506b56db89d262b57 Mon Sep 17 00:00:00 2001 From: Jason Gunthorpe Date: Thu, 19 Nov 2009 12:55:21 -0800 Subject: [PATCH] RDMA/cma: Correct detection of SA Created MGID RDMA CM treats AF_INET6 addresses that are either 0 or prefixed with FF1x:A01B::/32 as MGIDs, but the detection for the prefix was buggy; fix it up. Signed-off-by: Jason Gunthorpe Signed-off-by: Sean Hefty Signed-off-by: Roland Dreier --- drivers/infiniband/core/cma.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/infiniband/core/cma.c b/drivers/infiniband/core/cma.c index 075317884b53..8bb2cf4031ae 100644 --- a/drivers/infiniband/core/cma.c +++ b/drivers/infiniband/core/cma.c @@ -2687,7 +2687,7 @@ static void cma_set_mgid(struct rdma_id_private *id_priv, if (cma_any_addr(addr)) { memset(mgid, 0, sizeof *mgid); } else if ((addr->sa_family == AF_INET6) && - ((be32_to_cpu(sin6->sin6_addr.s6_addr32[0]) & 0xFF10A01B) == + ((be32_to_cpu(sin6->sin6_addr.s6_addr32[0]) & 0xFFF0FFFF) == 0xFF10A01B)) { /* IPv6 address is an SA assigned MGID. */ memcpy(mgid, &sin6->sin6_addr, sizeof *mgid);