[PATCH] ARM: mm: mark private VM_FAULT_X defines as vm_fault_t

From: Kefeng Wang
Date: Mon Nov 15 2021 - 02:49:14 EST


This fixes several sparse warnings for fault.c:

arch/arm/mm/fault.c:210:24: sparse: expected restricted vm_fault_t
arch/arm/mm/fault.c:210:24: sparse: got int
...
arch/arm/mm/fault.c:345:24: sparse: sparse: restricted vm_fault_t degrades to integer

Reported-by: kernel test robot <lkp@xxxxxxxxx>
Fixes: caed89dab0ca ("ARM: 9128/1: mm: Refactor the __do_page_fault()")
Signed-off-by: Kefeng Wang <wangkefeng.wang@xxxxxxxxxx>
---
arch/arm/mm/fault.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm/mm/fault.c b/arch/arm/mm/fault.c
index bc8779d54a64..013921a5909b 100644
--- a/arch/arm/mm/fault.c
+++ b/arch/arm/mm/fault.c
@@ -191,8 +191,8 @@ void do_bad_area(unsigned long addr, unsigned int fsr, struct pt_regs *regs)
}

#ifdef CONFIG_MMU
-#define VM_FAULT_BADMAP 0x010000
-#define VM_FAULT_BADACCESS 0x020000
+#define VM_FAULT_BADMAP ((__force vm_fault_t)0x010000)
+#define VM_FAULT_BADACCESS ((__force vm_fault_t)0x020000)

static inline bool is_permission_fault(unsigned int fsr)
{
--
2.26.2