Since commit 0cbe3e26abe0cfe7 ("mm: update ptep_modify_prot_start/commit to take vm_area_struct as arg"), using gcc 8.2.0: mm/mprotect.c: In function ‘change_pte_range’: mm/mprotect.c:42:20: warning: unused variable ‘mm’ [-Wunused-variable] struct mm_struct *mm = vma->vm_mm; ^~ Fix this by converting set_pte_at() from a macro to a static inline function. Signed-off-by: Geert Uytterhoeven <geert@xxxxxxxxxxxxxx> --- The following may want to apply a similar conversion: arch/alpha/include/asm/pgtable.h:#define set_pte_at(mm,addr,ptep,pteval) set_pte(ptep,pteval) arch/c6x/include/asm/pgtable.h:#define set_pte_at(mm, addr, ptep, pteval) set_pte(ptep, pteval) arch/csky/include/asm/pgtable.h:#define set_pte_at(mm, addr, ptep, pteval) set_pte(ptep, pteval) arch/hexagon/include/asm/pgtable.h:#define set_pte_at(mm, addr, ptep, pte) set_pte(ptep, pte) arch/ia64/include/asm/pgtable.h:#define set_pte_at(mm,addr,ptep,pteval) set_pte(ptep,pteval) arch/nds32/include/asm/pgtable.h:#define set_pte_at(mm,addr,ptep,pteval) set_pte(ptep,pteval) arch/openrisc/include/asm/pgtable.h:#define set_pte_at(mm, addr, ptep, pteval) set_pte(ptep, pteval) arch/sh/include/asm/pgtable_32.h:#define set_pte_at(mm,addr,ptep,pteval) set_pte(ptep,pteval) arch/sh/include/asm/pgtable_64.h:#define set_pte_at(mm,addr,ptep,pteval) set_pte(ptep,pteval) arch/sparc/include/asm/pgtable_32.h:#define set_pte_at(mm,addr,ptep,pteval) set_pte(ptep,pteval) arch/um/include/asm/pgtable.h:#define set_pte_at(mm,addr,ptep,pteval) set_pte(ptep,pteval) arch/unicore32/include/asm/pgtable.h:#define set_pte_at(mm, addr, ptep, pteval) \ arch/unicore32/include/asm/pgtable.h- do { \ arch/unicore32/include/asm/pgtable.h- set_pte(ptep, pteval); \ arch/unicore32/include/asm/pgtable.h- } while (0) --- arch/m68k/include/asm/pgtable_mm.h | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/arch/m68k/include/asm/pgtable_mm.h b/arch/m68k/include/asm/pgtable_mm.h index fe3ddd73a0ccb9e4..d931cfd291f667c9 100644 --- a/arch/m68k/include/asm/pgtable_mm.h +++ b/arch/m68k/include/asm/pgtable_mm.h @@ -26,7 +26,11 @@ do{ \ *(pteptr) = (pteval); \ } while(0) -#define set_pte_at(mm,addr,ptep,pteval) set_pte(ptep,pteval) +static inline void set_pte_at(struct mm_struct *mm, unsigned long addr, + pte_t *ptep, pte_t pteval) +{ + set_pte(ptep, pteval); +} /* PMD_SHIFT determines the size of the area a second-level page table can map */ -- 2.17.1