Use symbolic names for DSISR bits in DSI

Signed-off-by: Christophe Leroy <christophe.le...@c-s.fr>
---
 arch/powerpc/kernel/head_8xx.S | 2 +-
 arch/powerpc/mm/fault.c        | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/powerpc/kernel/head_8xx.S b/arch/powerpc/kernel/head_8xx.S
index 778a0e11d0e6..a1c2a2cfec7e 100644
--- a/arch/powerpc/kernel/head_8xx.S
+++ b/arch/powerpc/kernel/head_8xx.S
@@ -595,7 +595,7 @@ DARFixed:/* Return from dcbx instruction bug workaround */
        mfspr   r5,SPRN_DSISR
        stw     r5,_DSISR(r11)
        mfspr   r4,SPRN_DAR
-       andis.  r10,r5,0x4000
+       andis.  r10,r5,DSISR_NOHPTE@h
        beq+    1f
        tlbie   r4
 dtlbie:
diff --git a/arch/powerpc/mm/fault.c b/arch/powerpc/mm/fault.c
index 7a218f69f956..6948d0628cde 100644
--- a/arch/powerpc/mm/fault.c
+++ b/arch/powerpc/mm/fault.c
@@ -392,7 +392,7 @@ static void sanity_check_fault(bool is_write, unsigned long 
error_code) { }
 #else
 #define page_fault_is_write(__err)     ((__err) & DSISR_ISSTORE)
 #if defined(CONFIG_PPC_8xx)
-#define page_fault_is_bad(__err)       ((__err) & 0x10000000)
+#define page_fault_is_bad(__err)       ((__err) & DSISR_NOEXEC_OR_G)
 #elif defined(CONFIG_PPC64)
 #define page_fault_is_bad(__err)       ((__err) & DSISR_BAD_FAULT_64S)
 #else
-- 
2.13.3

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