Even if the addr is not a linklocal address, the code treats it as such and assigns the bound dev addr to the scope id of the address which is invalid. Fix by checking if it's a link local address first and return 0 if not.
Signed-off-by: Somnath Kotur <[email protected]> --- Incorporated comments from Philip and Sean Hefty. drivers/infiniband/core/cma.c | 7 +++++-- 1 files changed, 5 insertions(+), 2 deletions(-) diff --git a/drivers/infiniband/core/cma.c b/drivers/infiniband/core/cma.c index dab4b41..7f8ee93 100644 --- a/drivers/infiniband/core/cma.c +++ b/drivers/infiniband/core/cma.c @@ -2466,8 +2466,11 @@ static int cma_check_linklocal(struct rdma_dev_addr *dev_addr, return 0; sin6 = (struct sockaddr_in6 *) addr; - if ((ipv6_addr_type(&sin6->sin6_addr) & IPV6_ADDR_LINKLOCAL) && - !sin6->sin6_scope_id) + + if (!(ipv6_addr_type(&sin6->sin6_addr) & IPV6_ADDR_LINKLOCAL)) + return 0; + + if (!sin6->sin6_scope_id) return -EINVAL; dev_addr->bound_dev_if = sin6->sin6_scope_id; -- 1.7.1 -- To unsubscribe from this list: send the line "unsubscribe linux-rdma" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
