linux-kernel - [PATCH v2 2/2] uapi: fix linux/rds.h userspace compilation error

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Date:   Thu, 16 Feb 2017 18:05:45 +0300
From:   "Dmitry V. Levin" <ldv@...linux.org>
To:     "David S. Miller" <davem@...emloft.net>
Cc:     netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH v2 2/2] uapi: fix linux/rds.h userspace compilation error

On the kernel side, sockaddr_storage is #define'd to
__kernel_sockaddr_storage.  Replacing struct sockaddr_storage with
struct __kernel_sockaddr_storage defined by <linux/socket.h> fixes
the following linux/rds.h userspace compilation error:

/usr/include/linux/rds.h:226:26: error: field 'dest_addr' has incomplete type
  struct sockaddr_storage dest_addr;

Signed-off-by: Dmitry V. Levin <ldv@...linux.org>
---
v2: Cc'ed netdev

 include/uapi/linux/rds.h | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/include/uapi/linux/rds.h b/include/uapi/linux/rds.h
index 3ff5cc2..804c9b2 100644
--- a/include/uapi/linux/rds.h
+++ b/include/uapi/linux/rds.h
@@ -35,6 +35,7 @@
 #define _LINUX_RDS_H

 #include <linux/types.h>
+#include <linux/socket.h>		/* For __kernel_sockaddr_storage. */

 #define RDS_IB_ABI_VERSION		0x301

@@ -223,7 +224,7 @@ struct rds_get_mr_args {
 };

 struct rds_get_mr_for_dest_args {
-	struct sockaddr_storage	dest_addr;
+	struct __kernel_sockaddr_storage dest_addr;
 	struct rds_iovec 	vec;
 	__u64			cookie_addr;
 	__u64			flags;
-- 
ldv