[PATCH] binderfs: handle !CONFIG_IPC_NS builds

[Christian Brauner]

kbuild reported a build faile in [1]. This is triggered when CONFIG_IPC_NS
is not set. So let's make the use of init_ipc_ns conditional on
CONFIG_IPC_NS being set.

[1]: https://lists.01.org/pipermail/kbuild-all/2019-January/056903.html

Signed-off-by: Christian Brauner <christian.brauner@xxxxxxxxxx>
---
 drivers/android/binderfs.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/android/binderfs.c b/drivers/android/binderfs.c
index ad3ad2f7f9f4..9518e2e7da05 100644
--- a/drivers/android/binderfs.c
+++ b/drivers/android/binderfs.c
@@ -129,7 +129,11 @@ static int binderfs_binder_device_create(struct inode *ref_inode,
 	struct inode *inode = NULL;
 	struct super_block *sb = ref_inode->i_sb;
 	struct binderfs_info *info = sb->s_fs_info;
+#if defined(CONFIG_IPC_NS)
 	bool use_reserve = (info->ipc_ns == &init_ipc_ns);
+#else
+	bool use_reserve = true;
+#endif
 
 	/* Reserve new minor number for the new device. */
 	mutex_lock(&binderfs_minors_mutex);
-- 
2.19.1