[xen master] xen/nodemask: Remove _unused_nodemask_arg_

[patchbot@xxxxxxx]

commit 66228b6e4067bd09b3820e3220f589315962ecf3
Author:     Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
AuthorDate: Mon Jan 12 10:32:24 2026 +0000
Commit:     Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
CommitDate: Tue Jan 13 15:47:02 2026 +0000

    xen/nodemask: Remove _unused_nodemask_arg_
    
    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>
    Acked-by: Jan Beulich <jbeulich@xxxxxxxx>
---
 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 1dd6c7458e..c9b18c47aa 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 {                                                        \
--
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