[PATCH] xen/arm: p2m_set_entry duplicate calculation.

[Paran Lee <p4ranlee@xxxxxxxxx>]

It doesn't seem necessary to do that calculation of order shift again.

Signed-off-by: Paran Lee <p4ranlee@xxxxxxxxx>
---
 xen/arch/arm/p2m.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/xen/arch/arm/p2m.c b/xen/arch/arm/p2m.c
index 1d1059f7d2..533afc830a 100644
--- a/xen/arch/arm/p2m.c
+++ b/xen/arch/arm/p2m.c
@@ -1092,7 +1092,7 @@ int p2m_set_entry(struct p2m_domain *p2m,
     while ( nr )
     {
         unsigned long mask;
-        unsigned long order;
+        unsigned long order, pages;
 
         /*
          * Don't take into account the MFN when removing mapping (i.e
@@ -1118,11 +1118,12 @@ int p2m_set_entry(struct p2m_domain *p2m,
         if ( rc )
             break;
 
-        sgfn = gfn_add(sgfn, (1 << order));
+        pages = 1 << order;
+        sgfn = gfn_add(sgfn, pages);
         if ( !mfn_eq(smfn, INVALID_MFN) )
-           smfn = mfn_add(smfn, (1 << order));
+           smfn = mfn_add(smfn, pages);
 
-        nr -= (1 << order);
+        nr -= pages;
     }
 
     return rc;
-- 
2.25.1