From: Moni Shoua <monis@mellanox.com>
Date: Tue, 23 May 2017 07:48:44 +0000 (+0300)
Subject: IB/core: Namespace is mandatory input for address resolution
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=bebb2a473a43c8f84a8210687d1cbdde503046d7;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git

IB/core: Namespace is mandatory input for address resolution

In function addr_resolve() the namespace is a required input parameter
and not an output. It is passed later for searching the routing table
and device addresses. Also, it shouldn't be copied back to the caller.

Fixes: 565edd1d5555 ('IB/addr: Pass network namespace as a parameter')
Cc: <stable@vger.kernel.org> # v4.3+
Signed-off-by: Moni Shoua <monis@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
---

diff --git a/drivers/infiniband/core/addr.c b/drivers/infiniband/core/addr.c
index a6cb379a4ebc..d78bc74bc9a9 100644
--- a/drivers/infiniband/core/addr.c
+++ b/drivers/infiniband/core/addr.c
@@ -509,6 +509,11 @@ static int addr_resolve(struct sockaddr *src_in,
 	struct dst_entry *dst;
 	int ret;
 
+	if (!addr->net) {
+		pr_warn_ratelimited("%s: missing namespace\n", __func__);
+		return -EINVAL;
+	}
+
 	if (src_in->sa_family == AF_INET) {
 		struct rtable *rt = NULL;
 		const struct sockaddr_in *dst_in4 =
@@ -546,7 +551,6 @@ static int addr_resolve(struct sockaddr *src_in,
 	}
 
 	addr->bound_dev_if = ndev->ifindex;
-	addr->net = dev_net(ndev);
 	dev_put(ndev);
 
 	return ret;