The following commit has been merged into the sched/core branch of tip:

Commit-ID:     73cbcfe255f7edca915d978a7d1b0a11f2d62812
Gitweb:        https://git.kernel.org/tip/73cbcfe255f7edca915d978a7d1b0a11f2d62812
Author:        Peter Zijlstra <peterz@infradead.org>
AuthorDate:    Thu, 16 Oct 2025 12:58:34 +02:00
Committer:     Peter Zijlstra <peterz@infradead.org>
CommitterDate: Thu, 16 Oct 2025 13:01:15 +02:00

sched/topology,x86: Fix build warning

A compile warning slipped through:

   arch/x86/kernel/smpboot.c:548:5: warning: no previous prototype for function 'arch_sched_node_distance' [-Wmissing-prototypes]

Fixes: 4d6dd05d07d0 ("sched/topology: Fix sched domain build error for GNR, CWF in SNC-3 mode")
Reported-by: Borislav Petkov <bp@alien8.de>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
---
 arch/x86/include/asm/topology.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/x86/include/asm/topology.h b/arch/x86/include/asm/topology.h
index 2104189..df94388 100644
--- a/arch/x86/include/asm/topology.h
+++ b/arch/x86/include/asm/topology.h
@@ -325,4 +325,6 @@ static inline void freq_invariance_set_perf_ratio(u64 ratio, bool turbo_disabled
 extern void arch_scale_freq_tick(void);
 #define arch_scale_freq_tick arch_scale_freq_tick
 
+extern int arch_sched_node_distance(int from, int to);
+
 #endif /* _ASM_X86_TOPOLOGY_H */