[PATCH] mm: export cma alloc and release

[Mark Salyzyn <salyzyn@android.com>]

Some drivers can not be turned into a module without cma_alloc and
cma_release exported.  Examples include ion, and we also found some
out of tree infiniband and camera drivers.

Signed-off-by: Mark Salyzyn <salyzyn@android.com>
Cc: kernel-team@android.com
Cc: linux-kernel@vger.kernel.org
---
 mm/cma.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/mm/cma.c b/mm/cma.c
index 7fe0b8356775..65d830eea3b1 100644
--- a/mm/cma.c
+++ b/mm/cma.c
@@ -500,6 +500,7 @@ 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 +534,7 @@ 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)
 {
-- 
2.23.0.581.g78d2f28ef7-goog