From 198e79f0e8f0b24c1e36ab6032d348f40de20262 Mon Sep 17 00:00:00 2001
From: Dominik Sliwa <dominik.sliwa@toradex.com>
Date: Fri, 22 Dec 2017 12:07:34 +0000
Subject: backports: bluetooth: Support 4.9 kernels

Signed-off-by: Dominik Sliwa <dominik.sliwa@toradex.com>
---
 backport-include/linux/kref.h | 13 +++++++++++++
 1 file changed, 13 insertions(+)
 create mode 100644 backport-include/linux/kref.h

(limited to 'backport-include/linux/kref.h')

diff --git a/backport-include/linux/kref.h b/backport-include/linux/kref.h
new file mode 100644
index 0000000..631488f
--- /dev/null
+++ b/backport-include/linux/kref.h
@@ -0,0 +1,13 @@
+#ifndef __BACKPORT_LINUX_KREF_H
+#define __BACKPORT_LINUX_KREF_H
+#include_next <linux/kref.h>
+
+#if LINUX_VERSION_IS_LESS(4,11,0)
+#include <linux/refcount.h>
+static inline unsigned int kref_read(const struct kref *kref)
+{
+        return refcount_read((const refcount_t *)&kref->refcount);
+}
+#endif /* < 4.11 */
+
+#endif /* __BACKPORT_LINUX_KREF_H */
-- 
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