From b86539d1331ab13c46ce43e9a9e76d7d32c41881 Mon Sep 17 00:00:00 2001
From: "Jason A. Donenfeld" <Jason@zx2c4.com>
Date: Wed, 4 Oct 2017 05:21:15 +0200
Subject: compat: support ptr_ring for old kernels

---
 src/compat/Kbuild.include | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'src/compat/Kbuild.include')

diff --git a/src/compat/Kbuild.include b/src/compat/Kbuild.include
index aacc9f6..bee91ed 100644
--- a/src/compat/Kbuild.include
+++ b/src/compat/Kbuild.include
@@ -4,6 +4,10 @@ else
 ccflags-y += -include $(src)/compat/compat.h
 endif
 
+ifeq ($(wildcard $(srctree)/include/linux/ptr_ring.h),)
+ccflags-y += -I$(src)/compat/ptr_ring/include
+endif
+
 ifeq ($(wildcard $(srctree)/include/linux/siphash.h),)
 ccflags-y += -I$(src)/compat/siphash/include
 wireguard-y += compat/siphash/siphash.o
-- 
cgit v1.2.3-59-g8ed1b