[PATCH 3/8] gnttab: Remove unused-but-set variable

[Michal Orzel <michal.orzel@xxxxxxx>]

Function unmap_common_complete defines and sets a variable ld that is
later on passed to a macro gnttab_host_mapping_get_page_type. On arm
this macro does not make use of any arguments causing a compiler to
warn about unused-but-set variable (when -Wunused-but-set-variable is
enabled). Fix this by removing ld and directly passing current->domain
to gnttab_host_mapping_get_page_type.

Signed-off-by: Michal Orzel <michal.orzel@xxxxxxx>
---
 xen/common/grant_table.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/xen/common/grant_table.c b/xen/common/grant_table.c
index febbe12eab..71b1107999 100644
--- a/xen/common/grant_table.c
+++ b/xen/common/grant_table.c
@@ -1556,7 +1556,7 @@ unmap_common(
 static void
 unmap_common_complete(struct gnttab_unmap_common *op)
 {
-    struct domain *ld, *rd = op->rd;
+    struct domain *rd = op->rd;
     struct grant_table *rgt;
     struct active_grant_entry *act;
     grant_entry_header_t *sha;
@@ -1569,8 +1569,6 @@ unmap_common_complete(struct gnttab_unmap_common *op)
         return;
     }
 
-    ld = current->domain;
-
     rcu_lock_domain(rd);
     rgt = rd->grant_table;
 
@@ -1608,7 +1606,7 @@ unmap_common_complete(struct gnttab_unmap_common *op)
         if ( pg )
         {
             if ( gnttab_host_mapping_get_page_type(op->done & GNTMAP_readonly,
-                                                   ld, rd) )
+                                                   current->domain, rd) )
                 put_page_type(pg);
             put_page(pg);
         }
-- 
2.25.1