[PATCH AUTOSEL 4.19 21/27] arm64/mm: mark private VM_FAULT_X defines as vm_fault_t

[Sasha Levin]

From: Min-Hua Chen <minhuadotchen@xxxxxxxxx>

[ Upstream commit d91d580878064b880f3574ac35b98d8b70ee8620 ]

This patch fixes several sparse warnings for fault.c:

arch/arm64/mm/fault.c:493:24: sparse: warning: incorrect type in return expression (different base types)
arch/arm64/mm/fault.c:493:24: sparse:    expected restricted vm_fault_t
arch/arm64/mm/fault.c:493:24: sparse:    got int
arch/arm64/mm/fault.c:501:32: sparse: warning: incorrect type in return expression (different base types)
arch/arm64/mm/fault.c:501:32: sparse:    expected restricted vm_fault_t
arch/arm64/mm/fault.c:501:32: sparse:    got int
arch/arm64/mm/fault.c:503:32: sparse: warning: incorrect type in return expression (different base types)
arch/arm64/mm/fault.c:503:32: sparse:    expected restricted vm_fault_t
arch/arm64/mm/fault.c:503:32: sparse:    got int
arch/arm64/mm/fault.c:511:24: sparse: warning: incorrect type in return expression (different base types)
arch/arm64/mm/fault.c:511:24: sparse:    expected restricted vm_fault_t
arch/arm64/mm/fault.c:511:24: sparse:    got int
arch/arm64/mm/fault.c:670:13: sparse: warning: restricted vm_fault_t degrades to integer
arch/arm64/mm/fault.c:670:13: sparse: warning: restricted vm_fault_t degrades to integer
arch/arm64/mm/fault.c:713:39: sparse: warning: restricted vm_fault_t degrades to integer

Reported-by: kernel test robot <lkp@xxxxxxxxx>
Signed-off-by: Min-Hua Chen <minhuadotchen@xxxxxxxxx>
Link: https://lore.kernel.org/r/20230502151909.128810-1-minhuadotchen@xxxxxxxxx
Signed-off-by: Will Deacon <will@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
 arch/arm64/mm/fault.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/mm/fault.c b/arch/arm64/mm/fault.c
index 0d2be8eb87ec8..c9faa5570d245 100644
--- a/arch/arm64/mm/fault.c
+++ b/arch/arm64/mm/fault.c
@@ -376,8 +376,8 @@ static void do_bad_area(unsigned long addr, unsigned int esr, struct pt_regs *re
 	}
 }
 
-#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 vm_fault_t __do_page_fault(struct mm_struct *mm, unsigned long addr,
 			   unsigned int mm_flags, unsigned long vm_flags,
-- 
2.39.2