[Xen-devel] [PATCH 10/17] xen/x86: pv: Use maddr_to_mfn(...) instead of the open-coding version

[julien@xxxxxxx]

From: Julien Grall <jgrall@xxxxxxxxxx>

_mfn(addr >> PAGE_SHIFT) is equivalent to maddr_to_mfn(addr).

Signed-off-by: Julien Grall <jgrall@xxxxxxxxxx>
---
 xen/arch/x86/pv/grant_table.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/xen/arch/x86/pv/grant_table.c b/xen/arch/x86/pv/grant_table.c
index 0325618c98..f80e233621 100644
--- a/xen/arch/x86/pv/grant_table.c
+++ b/xen/arch/x86/pv/grant_table.c
@@ -72,7 +72,7 @@ int create_grant_pv_mapping(uint64_t addr, mfn_t frame,
             goto out;
         }
 
-        gl1mfn = _mfn(addr >> PAGE_SHIFT);
+        gl1mfn = maddr_to_mfn(addr);
 
         page = get_page_from_mfn(gl1mfn, currd);
         if ( !page )
@@ -228,7 +228,7 @@ int replace_grant_pv_mapping(uint64_t addr, mfn_t frame,
             goto out;
         }
 
-        gl1mfn = _mfn(addr >> PAGE_SHIFT);
+        gl1mfn = maddr_to_mfn(addr);
 
         page = get_page_from_mfn(gl1mfn, currd);
         if ( !page )
-- 
2.17.1


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