[PATCH] backports: only backport kconfig.h macros for < v3.4

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From: Luca Coelho <luciano.coelho@xxxxxxxxx>

In kernel v4.9-rc3, config_enabled() was removed, so we can't use it
anymore.  The IS_BUILTIN macro is undefined then redefined using
config_enabled(), which doesn't work anymore.  Additionally, it's not
necessary to include all these macros if the kernel is >= v3.4.  To
fix the config_enabled() problem and to avoid backporting
unnecessarily, simply gate the backports on < v3.4.

Change-Id: I7682ca0cef166e00dd37529da113ab949dfc5c0a
Signed-off-by: Luca Coelho <luciano.coelho@xxxxxxxxx>
---
 backport/backport-include/linux/kconfig.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/backport/backport-include/linux/kconfig.h b/backport/backport-include/linux/kconfig.h
index 4fe2a10..4899c7e 100644
--- a/backport/backport-include/linux/kconfig.h
+++ b/backport/backport-include/linux/kconfig.h
@@ -5,6 +5,7 @@
 #include_next <linux/kconfig.h>
 #endif
 
+#if LINUX_VERSION_CODE < KERNEL_VERSION(3,4,0)
 #ifndef __ARG_PLACEHOLDER_1
 #define __ARG_PLACEHOLDER_1 0,
 #define config_enabled(cfg) _config_enabled(cfg)
@@ -36,3 +37,4 @@
 #endif
 
 #endif
+#endif
-- 
2.10.2

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