[PATCH 1/2] s390: export memory encryption helper functions

[Arnd Bergmann <arnd@kernel.org>]

From: Arnd Bergmann <arnd@arndb.de>

The set_memory_encrypted/set_memory_decrypted functions are exported
on x86 and arm64 but not on s390, which leads to a new build failure
because they are now used in a loadable module:

ERROR: modpost: "set_memory_encrypted" [drivers/dma-buf/heaps/system_heap.ko] undefined!
ERROR: modpost: "set_memory_decrypted" [drivers/dma-buf/heaps/system_heap.ko] undefined!

Export these the same way we do on the other architectures.

Fixes: fd55edff8a0a ("dma-buf: heaps: system: Turn the heap into a module")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
 arch/s390/mm/init.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/s390/mm/init.c b/arch/s390/mm/init.c
index f07168a0d3dd..d589c5e4d388 100644
--- a/arch/s390/mm/init.c
+++ b/arch/s390/mm/init.c
@@ -124,6 +124,7 @@ int set_memory_encrypted(unsigned long vaddr, int numpages)
 	}
 	return 0;
 }
+EXPORT_SYMBOL_GPL(set_memory_encrypted);
 
 int set_memory_decrypted(unsigned long vaddr, int numpages)
 {
@@ -135,6 +136,7 @@ int set_memory_decrypted(unsigned long vaddr, int numpages)
 	}
 	return 0;
 }
+EXPORT_SYMBOL_GPL(set_memory_decrypted);
 
 /* are we a protected virtualization guest? */
 bool force_dma_unencrypted(struct device *dev)
-- 
2.39.5