[xen staging] xen/sysctl: wrap around XEN_SYSCTL_sched_id

[patchbot@xxxxxxx]

commit b46b27350e806925eb267a927eb8c929a8cd4354
Author:     Penny Zheng <Penny.Zheng@xxxxxxx>
AuthorDate: Mon Jul 7 11:48:35 2025 +0200
Commit:     Jan Beulich <jbeulich@xxxxxxxx>
CommitDate: Mon Jul 7 11:48:35 2025 +0200

    xen/sysctl: wrap around XEN_SYSCTL_sched_id
    
    The following function shall be wrapped:
    - scheduler_id()
    
    Signed-off-by: Penny Zheng <Penny.Zheng@xxxxxxx>
    Reviewed-by: Stefano Stabellini <sstabellini@xxxxxxxxxx>
    Reviewed-by: Juergen Gross <jgross@xxxxxxxx>
---
 xen/common/sched/core.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/xen/common/sched/core.c b/xen/common/sched/core.c
index 9043414290..13fdf57e57 100644
--- a/xen/common/sched/core.c
+++ b/xen/common/sched/core.c
@@ -2069,11 +2069,13 @@ long do_set_timer_op(s_time_t timeout)
     return 0;
 }
 
+#ifdef CONFIG_SYSCTL
 /* scheduler_id - fetch ID of current scheduler */
 int scheduler_id(void)
 {
     return operations.sched_id;
 }
+#endif
 
 /* Adjust scheduling parameter for a given domain. */
 long sched_adjust(struct domain *d, struct xen_domctl_scheduler_op *op)
--
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