commit 00bbd5d9016d49fa8dddef020a06b94fedca9148
author Anshuman Khandual <anshuman.khandual@arm.com> Sat Sep 22 21:09:52 2018 +0530
committer Catalin Marinas <catalin.marinas@arm.com> Mon Oct 01 13:47:12 2018 +0100
tree b10a184f3deea44f9c09e4c7b64f19691cf8488c
parent 95b861a4a6d94f64d5242605569218160ebacdbe

arm64/mm: Use ESR_ELx_FSC macro while decoding fault exception

Just replace hard code value of 63 (0x111111) with an existing macro
ESR_ELx_FSC when parsing for the status code during fault exception.

Acked-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>

arch/arm64/mm/fault.c

diff --git a/arch/arm64/mm/fault.c b/arch/arm64/mm/fault.c
index 6342f17..6d9acd9 100644
--- a/arch/arm64/mm/fault.c
+++ b/arch/arm64/mm/fault.c
@@ -59,7 +59,7 @@ static const struct fault_info fault_info[];
 
 static inline const struct fault_info *esr_to_fault_info(unsigned int esr)
 {
-	return fault_info + (esr & 63);
+	return fault_info + (esr & ESR_ELx_FSC);
 }
 
 #ifdef CONFIG_KPROBES