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riscv: pgtable: Fix __kernel_map_pages build error if NOMMU

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riscv64-none-linux-gnu-ld: mm/page_alloc.o: in function `.L0 ':
page_alloc.c:(.text+0xd34): undefined reference to `__kernel_map_pages'
riscv64-none-linux-gnu-ld: page_alloc.c:(.text+0x104a): undefined reference to `__kernel_map_pages'
riscv64-none-linux-gnu-ld: mm/page_alloc.o: in function `__pageblock_pfn_to_page':
page_alloc.c:(.text+0x145e): undefined reference to `__kernel_map_pages'

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com>
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
This commit is contained in:
Kefeng Wang 2020-05-11 10:19:59 +08:00 committed by Palmer Dabbelt
parent 69868418e1
commit 9a6630aef9
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1 changed files with 2 additions and 0 deletions
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2
arch/riscv/include/asm/pgtable.h
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@ -477,6 +477,8 @@ static inline int ptep_clear_flush_young(struct vm_area_struct *vma,
#define TASK_SIZE 0xffffffffUL
static inline void __kernel_map_pages(struct page *page, int numpages, int enable) {}
#endif /* !CONFIG_MMU */
#define kern_addr_valid(addr) (1) /* FIXME */