>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 <jguntho...@obsidianresearch.com>
Acked-by: Sean Hefty <sean.he...@intel.com>
>---
> drivers/infiniband/core/cma.c | 2 +-
> 1 files changed, 1 insertions(+), 1 deletions(-)
>
>Sean: Sounded like you agree?
yes - thanks
>
>diff --git a/drivers/infiniband/core/cma.c b/drivers/infiniband/core/cma.c
>index 1e9a78a..a1041b2 100644
>--- a/drivers/infiniband/core/cma.c
>+++ b/drivers/infiniband/core/cma.c
>@@ -2720,7 +2720,7 @@ 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);
>--
>1.5.4.2
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