powerpc/ps3: Add empty repository highmem routines

To avoid the need for preprocessor conditionals in C source files add a set of
empty inline repository highmem write routines to platform.h that are used when
CONFIG_PS3_REPOSITORY_WRITE is not defined.
Signed-off-by: Geoff Levand <geoff@infradead.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

arch/powerpc/platforms/ps3/platform.h

@@ -196,6 +196,7 @@ int ps3_repository_read_highmem_size(unsigned int region_index,
 int ps3_repository_read_highmem_info(unsigned int region_index,
 	u64 *highmem_base, u64 *highmem_size);
 
+#if defined (CONFIG_PS3_REPOSITORY_WRITE)
 int ps3_repository_write_highmem_region_count(unsigned int region_count);
 int ps3_repository_write_highmem_base(unsigned int region_index,
 	u64 highmem_base);
@@ -204,6 +205,18 @@ int ps3_repository_write_highmem_size(unsigned int region_index,
 int ps3_repository_write_highmem_info(unsigned int region_index,
 	u64 highmem_base, u64 highmem_size);
 int ps3_repository_delete_highmem_info(unsigned int region_index);
+#else
+static inline int ps3_repository_write_highmem_region_count(
+	unsigned int region_count) {return 0;}
+static inline int ps3_repository_write_highmem_base(unsigned int region_index,
+	u64 highmem_base) {return 0;}
+static inline int ps3_repository_write_highmem_size(unsigned int region_index,
+	u64 highmem_size) {return 0;}
+static inline int ps3_repository_write_highmem_info(unsigned int region_index,
+	u64 highmem_base, u64 highmem_size) {return 0;}
+static inline int ps3_repository_delete_highmem_info(unsigned int region_index)
+	{return 0;}
+#endif
 
 /* repository pme info */