Commit 36b390fd authored by Michael Ellerman's avatar Michael Ellerman

powerpc/mm: Fix build break with BOOK3S_64=n and MEMORY_HOTPLUG=y

The recently merged HPT (Hash Page Table) resize support broke the build
when BOOK3S_64=n (ie. 32-bit or 64-bit Book3E) and MEMORY_HOTPLUG=y:

  arch/powerpc/mm/mem.o: In function `.arch_add_memory':
  (.text+0x4e4): undefined reference to `.resize_hpt_for_hotplug'

Fix it by adding a dummy version.

Fixes: 438cc81a ("powerpc/pseries: Automatically resize HPT for memory hot add/remove")
Signed-off-by: default avatarMichael Ellerman <mpe@ellerman.id.au>
parent da0e7e62
...@@ -16,9 +16,15 @@ ...@@ -16,9 +16,15 @@
#endif /* CONFIG_SPARSEMEM */ #endif /* CONFIG_SPARSEMEM */
#ifdef CONFIG_MEMORY_HOTPLUG #ifdef CONFIG_MEMORY_HOTPLUG
extern void resize_hpt_for_hotplug(unsigned long new_mem_size);
extern int create_section_mapping(unsigned long start, unsigned long end); extern int create_section_mapping(unsigned long start, unsigned long end);
extern int remove_section_mapping(unsigned long start, unsigned long end); extern int remove_section_mapping(unsigned long start, unsigned long end);
#ifdef CONFIG_PPC_BOOK3S_64
extern void resize_hpt_for_hotplug(unsigned long new_mem_size);
#else
static inline void resize_hpt_for_hotplug(unsigned long new_mem_size) { }
#endif
#ifdef CONFIG_NUMA #ifdef CONFIG_NUMA
extern int hot_add_scn_to_nid(unsigned long scn_addr); extern int hot_add_scn_to_nid(unsigned long scn_addr);
#else #else
......
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