compat: backport rtnl_dereference

Signed-off-by: Felix Fietkau <nbd@openwrt.org>

diff --git a/include/linux/compat-2.6.37.h b/include/linux/compat-2.6.37.h
index 57868f528847187acf98d17a9f5fb8dae599fdb1..a83c9c7262145eaf0c2cd2378e3d1d4f7ecbd4b2 100644 (file)
--- a/include/linux/compat-2.6.37.h
+++ b/include/linux/compat-2.6.37.h
@@ -112,6 +112,9 @@ extern void compat_led_brightness_set(struct led_classdev *led_cdev,
 
 extern void *vzalloc(unsigned long size);
 
+#define rtnl_dereference(p)                                     \
+        rcu_dereference_protected(p, lockdep_rtnl_is_held())
+
 #endif /* (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,37)) */
 
 #endif /* LINUX_26_37_COMPAT_H */