From d8125877cb7e4e071520c00768233874c9f66b69 Mon Sep 17 00:00:00 2001
From: Danny Lin <danny@kdrag0n.dev>
Date: Fri, 27 Sep 2019 22:18:19 -0700
Subject: [PATCH] init: Export Android version from kernel command line

This flag will be provided by our flasher to facilitate support for both
Android Pie and 10 in the same kernel.

Signed-off-by: Danny Lin <danny@kdrag0n.dev>
Signed-off-by: Oktapra Amtono <oktapra.amtono@gmail.com>
Signed-off-by: RyuujiX <saputradenny712@gmail.com>
Signed-off-by: Kneba <abenkenary3@gmail.com>
Signed-off-by: negrroo <mohammedaelnaggar1@gmail.com>
---
 include/linux/android_version.h |  3 +++
 init/main.c                     | 14 ++++++++++++++
 2 files changed, 17 insertions(+)
 create mode 100644 include/linux/android_version.h

diff --git a/include/linux/android_version.h b/include/linux/android_version.h
new file mode 100644
index 000000000000..0c7565fd81a3
--- /dev/null
+++ b/include/linux/android_version.h
@@ -0,0 +1,3 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+
+unsigned int get_android_version(void);
diff --git a/init/main.c b/init/main.c
index 6fce605c6caf..c179e9fecc36 100644
--- a/init/main.c
+++ b/init/main.c
@@ -129,6 +129,20 @@ static char *initcall_command_line;
 static char *execute_command;
 static char *ramdisk_execute_command;
 
+static unsigned int android_version = 9;
+
+static int __init set_android_version(char *val)
+{
+	get_option(&val, &android_version);
+	return 0;
+}
+__setup("androidboot.version=", set_android_version);
+
+unsigned int get_android_version(void)
+{
+	return android_version;
+}
+
 /*
  * Used to generate warnings if static_key manipulation functions are used
  * before jump_label_init is called.