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um: Fix the -Wmissing-prototypes warning for __switch_mm

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[ Upstream commit 2cbade17b1 ]

The __switch_mm function is defined in the user code, and is called
by the kernel code. It should be declared in a shared header.

Fixes: 4dc706c2f2 ("um: take um_mmu.h to asm/mmu.h, clean asm/mmu_context.h a bit")
Signed-off-by: Tiwei Bie <tiwei.btw@antgroup.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Tiwei Bie 2024-04-23 20:58:53 +08:00 committed by Greg Kroah-Hartman
parent adb1c558c6
commit 59e34e390c
2 changed files with 2 additions and 2 deletions
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2
arch/um/include/asm/mmu.h
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@ -15,8 +15,6 @@ typedef struct mm_context {
struct page *stub_pages[2]; struct page *stub_pages[2];
} mm_context_t; } mm_context_t;
extern void __switch_mm(struct mm_id * mm_idp);
/* Avoid tangled inclusion with asm/ldt.h */ /* Avoid tangled inclusion with asm/ldt.h */
extern long init_new_ldt(struct mm_context *to_mm, struct mm_context *from_mm); extern long init_new_ldt(struct mm_context *to_mm, struct mm_context *from_mm);
extern void free_ldt(struct mm_context *mm); extern void free_ldt(struct mm_context *mm);

2
arch/um/include/shared/skas/mm_id.h
View File

@ -15,4 +15,6 @@ struct mm_id {
int kill; int kill;
}; };
void __switch_mm(struct mm_id *mm_idp);
#endif #endif