4.19-stable review patch. If anyone has any objections, please let me know.
------------------
From: Tiwei Bie <tiwei.btw@xxxxxxxxxxxx>
[ Upstream commit 2cbade17b18c0f0fd9963f26c9fc9b057eb1cb3a ]
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: 4dc706c2f292 ("um: take um_mmu.h to asm/mmu.h, clean asm/mmu_context.h a bit")
Signed-off-by: Tiwei Bie <tiwei.btw@xxxxxxxxxxxx>
Signed-off-by: Richard Weinberger <richard@xxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
arch/um/include/asm/mmu.h | 2 --
arch/um/include/shared/skas/mm_id.h | 2 ++
2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/um/include/asm/mmu.h b/arch/um/include/asm/mmu.h
index da705448590f2..21fbe5454dbd8 100644
--- a/arch/um/include/asm/mmu.h
+++ b/arch/um/include/asm/mmu.h
@@ -15,8 +15,6 @@ typedef struct mm_context {
struct page *stub_pages[2];
} mm_context_t;
-extern void __switch_mm(struct mm_id * mm_idp);
-
/* Avoid tangled inclusion with asm/ldt.h */
extern long init_new_ldt(struct mm_context *to_mm, struct mm_context *from_mm);
extern void free_ldt(struct mm_context *mm);
diff --git a/arch/um/include/shared/skas/mm_id.h b/arch/um/include/shared/skas/mm_id.h
index 48dd0989ddaa6..169482ec95f98 100644
--- a/arch/um/include/shared/skas/mm_id.h
+++ b/arch/um/include/shared/skas/mm_id.h
@@ -14,4 +14,6 @@ struct mm_id {
unsigned long stack;
};
+void __switch_mm(struct mm_id *mm_idp);
+
#endif
--
2.43.0
