From d80c70d7a8765e9be5ae4df3f435ffca9f239da9 Mon Sep 17 00:00:00 2001
From: xieliujie <xieliujie@oppo.com>
Date: Sat, 3 Jul 2021 16:59:16 +0800
Subject: [PATCH] ANDROID: android: export kernel function arch_mmap_rnd

Vendor module needs arch_mmap_rnd() to generate new mm->mmap_base
when defining a custom mmap_layout.
More details in https://buganizer.corp.google.com/issues/191439466

Bug: 191439466
Signed-off-by: xieliujie <xieliujie@oppo.com>
Change-Id: I37644438b4e170732adc62810388450155c178a4
---
 mm/util.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/mm/util.c b/mm/util.c
index 21266dd86fb0..f8fc6a1ee176 100644
--- a/mm/util.c
+++ b/mm/util.c
@@ -357,6 +357,7 @@ unsigned long arch_mmap_rnd(void)
 
 	return rnd << PAGE_SHIFT;
 }
+EXPORT_SYMBOL_GPL(arch_mmap_rnd);
 
 static int mmap_is_legacy(struct rlimit *rlim_stack)
 {