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LoongArch: Fix arch_remove_memory() undefined build error

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The kernel build error when unslected CONFIG_MEMORY_HOTREMOVE because
arch_remove_memory() is needed by mm/memory_hotplug.c but undefined.

Some build error messages like:

 LD      vmlinux.o
 MODPOST vmlinux.symvers
 MODINFO modules.builtin.modinfo
 GEN     modules.builtin
 LD      .tmp_vmlinux.kallsyms1
loongarch64-linux-gnu-ld: mm/memory_hotplug.o: in function `.L242':
memory_hotplug.c:(.ref.text+0x930): undefined reference to `arch_remove_memory'
make: *** [Makefile:1169：vmlinux] 错误 1

Removed CONFIG_MEMORY_HOTREMOVE requirement and rearrange the file refer
to the definitions of other platform architectures.

Signed-off-by: Yupeng Li <liyupeng@zbhlos.com>
Signed-off-by: Caicai <caizp2008@163.com>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
This commit is contained in:
Yupeng Li
2022-08-31 13:40:17 +08:00
committed by Huacai Chen
parent e0fba87c85
commit 1a470ce4e9
1 changed files with 10 additions and 12 deletions
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22
arch/loongarch/mm/init.c
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@@ -131,18 +131,6 @@ int arch_add_memory(int nid, u64 start, u64 size, struct mhp_params *params)
return ret; return ret;
} }
#ifdef CONFIG_NUMA
int memory_add_physaddr_to_nid(u64 start)
{
int nid;
nid = pa_to_nid(start);
return nid;
}
EXPORT_SYMBOL_GPL(memory_add_physaddr_to_nid);
#endif
#ifdef CONFIG_MEMORY_HOTREMOVE
void arch_remove_memory(u64 start, u64 size, struct vmem_altmap *altmap) void arch_remove_memory(u64 start, u64 size, struct vmem_altmap *altmap)
{ {
unsigned long start_pfn = start >> PAGE_SHIFT; unsigned long start_pfn = start >> PAGE_SHIFT;
@@ -154,6 +142,16 @@ void arch_remove_memory(u64 start, u64 size, struct vmem_altmap *altmap)
page += vmem_altmap_offset(altmap); page += vmem_altmap_offset(altmap);
__remove_pages(start_pfn, nr_pages, altmap); __remove_pages(start_pfn, nr_pages, altmap);
} }
#ifdef CONFIG_NUMA
int memory_add_physaddr_to_nid(u64 start)
{
int nid;
nid = pa_to_nid(start);
return nid;
}
EXPORT_SYMBOL_GPL(memory_add_physaddr_to_nid);
#endif #endif
#endif #endif