GCC 11.4.0 produces the following warning when compiling the kernel for
UML architecture (with UML defconfig):

arch/um/kernel/tlb.c:579:6: warning: no previous prototype for 
‘flush_tlb_mm_range’ [-Wmissing-prototypes]
  579 | void flush_tlb_mm_range(struct mm_struct *mm, unsigned long start,)

This function is not used anywhere. It is not exported with
`EXPORT_SYMBOL` either, and therefore it is not usable for dynamically
loaded modules. Remove this function.

Signed-off-by: Ivan Orlov <ivan.orlov0...@gmail.com>
---
 arch/um/kernel/tlb.c | 6 ------
 1 file changed, 6 deletions(-)

diff --git a/arch/um/kernel/tlb.c b/arch/um/kernel/tlb.c
index 7d050ab0f78a..70b5e47e9761 100644
--- a/arch/um/kernel/tlb.c
+++ b/arch/um/kernel/tlb.c
@@ -576,12 +576,6 @@ void flush_tlb_range(struct vm_area_struct *vma, unsigned 
long start,
 }
 EXPORT_SYMBOL(flush_tlb_range);
 
-void flush_tlb_mm_range(struct mm_struct *mm, unsigned long start,
-                       unsigned long end)
-{
-       fix_range(mm, start, end, 0);
-}
-
 void flush_tlb_mm(struct mm_struct *mm)
 {
        struct vm_area_struct *vma;
-- 
2.34.1


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