[PATCH net] cgroup: Fix sock_cgroup_data on big-endian.

[David Miller]

From: Cong Wang <xiyou.wangc...@gmail.com>

In order for no_refcnt and is_data to be the lowest order two
bits in the 'val' we have to pad out the bitfield of the u8.

Fixes: ad0f75e5f57c ("cgroup: fix cgroup_sk_alloc() for sk_clone_lock()")
Reported-by: Guenter Roeck <li...@roeck-us.net>
Signed-off-by: David S. Miller <da...@davemloft.net>
---
 include/linux/cgroup-defs.h | 2 ++
 1 file changed, 2 insertions(+)

Applied and queued up for -stable.

diff --git a/include/linux/cgroup-defs.h b/include/linux/cgroup-defs.h
index 4f1cd0edc57d..fee0b5547cd0 100644
--- a/include/linux/cgroup-defs.h
+++ b/include/linux/cgroup-defs.h
@@ -792,6 +792,7 @@ struct sock_cgroup_data {
                struct {
                        u8      is_data : 1;
                        u8      no_refcnt : 1;
+                       u8      unused : 6;
                        u8      padding;
                        u16     prioidx;
                        u32     classid;
@@ -801,6 +802,7 @@ struct sock_cgroup_data {
                        u32     classid;
                        u16     prioidx;
                        u8      padding;
+                       u8      unused : 6;
                        u8      no_refcnt : 1;
                        u8      is_data : 1;
                } __packed;
-- 
2.26.2