android-5.4/ANDROID-GKI-export-cma-symbols-for-cma-heap-as-a-module.patch

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Sandeep Patil <sspatil@google.com>
Date: Fri, 13 Sep 2019 14:50:38 -0700
Subject: ANDROID: GKI: export cma symbols for cma heap as a module

Bug: 140294230
Test: builds

Change-Id: I04c12174934c24a704d5c1e5be3e7e948c777a78
Signed-off-by: Sandeep Patil <sspatil@google.com>
---
 mm/cma.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/mm/cma.c b/mm/cma.c
index 7fe0b8356775..db4642e58058 100644
--- a/mm/cma.c
+++ b/mm/cma.c
@@ -24,6 +24,7 @@
 #include <linux/memblock.h>
 #include <linux/err.h>
 #include <linux/mm.h>
+#include <linux/module.h>
 #include <linux/mutex.h>
 #include <linux/sizes.h>
 #include <linux/slab.h>
@@ -54,6 +55,7 @@ const char *cma_get_name(const struct cma *cma)
 {
 	return cma->name ? cma->name : "(undefined)";
 }
+EXPORT_SYMBOL_GPL(cma_get_name);
 
 static unsigned long cma_bitmap_aligned_mask(const struct cma *cma,
 					     unsigned int align_order)
@@ -500,6 +502,7 @@ struct page *cma_alloc(struct cma *cma, size_t count, unsigned int align,
 	pr_debug("%s(): returned %p\n", __func__, page);
 	return page;
 }
+EXPORT_SYMBOL_GPL(cma_alloc);
 
 /**
  * cma_release() - release allocated pages
@@ -533,6 +536,7 @@ bool cma_release(struct cma *cma, const struct page *pages, unsigned int count)
 
 	return true;
 }
+EXPORT_SYMBOL_GPL(cma_release);
 
 int cma_for_each_area(int (*it)(struct cma *cma, void *data), void *data)
 {
@@ -547,3 +551,4 @@ int cma_for_each_area(int (*it)(struct cma *cma, void *data), void *data)
 
 	return 0;
 }
+EXPORT_SYMBOL_GPL(cma_for_each_area);