[PATCH v4 03/16] xen/arm: mm: Use gaddr_to_gfn rather than _gfn(paddr_to_pfn(...))

From: Julien Grall <julien.grall@arm.com>
To: xen-devel@lists.xen.org
Cc: Julien Grall <julien.grall@arm.com>,
	Stefano Stabellini <sstabellini@kernel.org>
Subject: [PATCH v4 03/16] xen/arm: mm: Use gaddr_to_gfn rather than _gfn(paddr_to_pfn(...))
Date: Wed, 21 Feb 2018 14:02:46 +0000	[thread overview]
Message-ID: <20180221140259.29360-4-julien.grall@arm.com> (raw)
In-Reply-To: <20180221140259.29360-1-julien.grall@arm.com>

The construction _gfn(paddr_to_pfn(...)) can be simplified by using
gaddr_to_gfn.

Signed-off-by: Julien Grall <julien.grall@arm.com>

---
Cc: Stefano Stabellini <sstabellini@kernel.org>

    Changes in v4:
        - Patch added
---
 xen/arch/arm/mm.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/xen/arch/arm/mm.c b/xen/arch/arm/mm.c
index 3c328e2df5..9b77ab5f33 100644
--- a/xen/arch/arm/mm.c
+++ b/xen/arch/arm/mm.c
@@ -1436,7 +1436,7 @@ int create_grant_host_mapping(unsigned long addr, unsigned long frame,
     if ( flags & GNTMAP_readonly )
         t = p2m_grant_map_ro;
 
-    rc = guest_physmap_add_entry(current->domain, _gfn(addr >> PAGE_SHIFT),
+    rc = guest_physmap_add_entry(current->domain, gaddr_to_gfn(addr),
                                  _mfn(frame), 0, t);
 
     if ( rc )
@@ -1448,7 +1448,7 @@ int create_grant_host_mapping(unsigned long addr, unsigned long frame,
 int replace_grant_host_mapping(unsigned long addr, unsigned long mfn,
         unsigned long new_addr, unsigned int flags)
 {
-    gfn_t gfn = _gfn(addr >> PAGE_SHIFT);
+    gfn_t gfn = gaddr_to_gfn(addr);
     struct domain *d = current->domain;
     int rc;
 
-- 
2.11.0


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