From: Bart Van Assche <bvanassche@acm.org>
Date: Wed, 27 Mar 2019 23:50:45 +0000 (-0700)
Subject: RDMA/uverbs: Add a __user annotation to a pointer
X-Git-Url: http://git.cdn.openwrt.org/?a=commitdiff_plain;h=259e66bcdff59b5d92b8f43e42237aaea2c4d457;p=openwrt%2Fstaging%2Fblogic.git

RDMA/uverbs: Add a __user annotation to a pointer

This patch avoids that sparse and smatch report the following:

  warning: cast removes address space of expression

Reviewed-by: Leon Romanovsky <leonro@mellanox.com>
Fixes: 3a6532c9af1a ("RDMA/uverbs: Use uverbs_attr_bundle to pass udata for write")
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
---

diff --git a/drivers/infiniband/core/uverbs_main.c b/drivers/infiniband/core/uverbs_main.c
index 70b7d80431a9..b8fc5a329e21 100644
--- a/drivers/infiniband/core/uverbs_main.c
+++ b/drivers/infiniband/core/uverbs_main.c
@@ -720,7 +720,7 @@ static ssize_t ib_uverbs_write(struct file *filp, const char __user *buf,
 			 * then the command request structure starts
 			 * with a '__aligned u64 response' member.
 			 */
-			ret = get_user(response, (const u64 *)buf);
+			ret = get_user(response, (const u64 __user *)buf);
 			if (ret)
 				goto out_unlock;