[PATCH] xen/nodemask: Remove _unused_nodemask_arg_

[Andrew Cooper <andrew.cooper3@xxxxxxxxxx>]

This only exists to have it's type taken, despite there being a perfectly good
concrete type to use.

No functional change.

Signed-off-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
---
CC: Anthony PERARD <anthony.perard@xxxxxxxxxx>
CC: Michal Orzel <michal.orzel@xxxxxxx>
CC: Jan Beulich <jbeulich@xxxxxxxx>
CC: Julien Grall <julien@xxxxxxx>
CC: Roger Pau Monné <roger.pau@xxxxxxxxxx>
CC: Stefano Stabellini <sstabellini@xxxxxxxxxx>
---
 xen/include/xen/nodemask.h | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/xen/include/xen/nodemask.h b/xen/include/xen/nodemask.h
index 1dd6c7458e77..c9b18c47aace 100644
--- a/xen/include/xen/nodemask.h
+++ b/xen/include/xen/nodemask.h
@@ -67,8 +67,6 @@ typedef struct { DECLARE_BITMAP(bits, MAX_NUMNODES); } 
nodemask_t;
 
 #define nodemask_bits(src) ((src)->bits)
 
-extern nodemask_t _unused_nodemask_arg_;
-
 #define node_set(node, dst) __node_set((node), &(dst))
 static inline void __node_set(int node, volatile nodemask_t *dstp)
 {
@@ -215,7 +213,7 @@ static inline int __last_node(const nodemask_t *srcp, int 
nbits)
 
 #define nodemask_of_node(node)                                         \
 ({                                                                     \
-       typeof(_unused_nodemask_arg_) m;                                \
+       nodemask_t m;                                                   \
        if (sizeof(m) == sizeof(unsigned long)) {                       \
                m.bits[0] = 1UL<<(node);                                \
        } else {                                                        \
-- 
2.39.5