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