[RFC v2 1/2] powerpc/mm: refactor {create,remove}_section_mapping()

[Reza Arbab]

Change {create,remove}_section_mapping() to be inline wrappers around
functions prefixed with "hash__".

This is preparation for the addition of their "radix__" variants. No
functional change.

Signed-off-by: Reza Arbab <arbab at linux.vnet.ibm.com>
---
 arch/powerpc/include/asm/book3s/64/hash.h |  5 +++++
 arch/powerpc/include/asm/sparsemem.h      | 14 ++++++++++++--
 arch/powerpc/mm/hash_utils_64.c           |  4 ++--
 3 files changed, 19 insertions(+), 4 deletions(-)

diff --git a/arch/powerpc/include/asm/book3s/64/hash.h b/arch/powerpc/include/asm/book3s/64/hash.h
index f61cad3..dd90574 100644
--- a/arch/powerpc/include/asm/book3s/64/hash.h
+++ b/arch/powerpc/include/asm/book3s/64/hash.h
@@ -201,6 +201,11 @@ extern int __meminit hash__vmemmap_create_mapping(unsigned long start,
 					      unsigned long phys);
 extern void hash__vmemmap_remove_mapping(unsigned long start,
 				     unsigned long page_size);
+
+#ifdef CONFIG_MEMORY_HOTPLUG
+int hash__create_section_mapping(unsigned long start, unsigned long end);
+int hash__remove_section_mapping(unsigned long start, unsigned long end);
+#endif /* CONFIG_MEMORY_HOTPLUG */
 #endif /* !__ASSEMBLY__ */
 #endif /* __KERNEL__ */
 #endif /* _ASM_POWERPC_BOOK3S_64_HASH_H */
diff --git a/arch/powerpc/include/asm/sparsemem.h b/arch/powerpc/include/asm/sparsemem.h
index f6fc0ee..5014e0d 100644
--- a/arch/powerpc/include/asm/sparsemem.h
+++ b/arch/powerpc/include/asm/sparsemem.h
@@ -16,8 +16,18 @@
 #endif /* CONFIG_SPARSEMEM */
 
 #ifdef CONFIG_MEMORY_HOTPLUG
-extern int create_section_mapping(unsigned long start, unsigned long end);
-extern int remove_section_mapping(unsigned long start, unsigned long end);
+static inline int create_section_mapping(unsigned long start,
+					 unsigned long end)
+{
+	return hash__create_section_mapping(start, end);
+}
+
+static inline int remove_section_mapping(unsigned long start,
+					 unsigned long end)
+{
+	return hash__remove_section_mapping(start, end);
+}
+
 #ifdef CONFIG_NUMA
 extern int hot_add_scn_to_nid(unsigned long scn_addr);
 #else
diff --git a/arch/powerpc/mm/hash_utils_64.c b/arch/powerpc/mm/hash_utils_64.c
index 0821556..2a203cd 100644
--- a/arch/powerpc/mm/hash_utils_64.c
+++ b/arch/powerpc/mm/hash_utils_64.c
@@ -688,7 +688,7 @@ static unsigned long __init htab_get_table_size(void)
 }
 
 #ifdef CONFIG_MEMORY_HOTPLUG
-int create_section_mapping(unsigned long start, unsigned long end)
+int hash__create_section_mapping(unsigned long start, unsigned long end)
 {
 	int rc = htab_bolt_mapping(start, end, __pa(start),
 				   pgprot_val(PAGE_KERNEL), mmu_linear_psize,
@@ -702,7 +702,7 @@ int create_section_mapping(unsigned long start, unsigned long end)
 	return rc;
 }
 
-int remove_section_mapping(unsigned long start, unsigned long end)
+int hash__remove_section_mapping(unsigned long start, unsigned long end)
 {
 	int rc = htab_remove_mapping(start, end, mmu_linear_psize,
 				     mmu_kernel_ssize);
-- 
1.8.3.1