FAILED: Patch "LoongArch: Guard percpu handler under !CONFIG_PREEMPT_RT" failed to apply to 5.10-stable tree

The patch below does not apply to the 5.10-stable tree.
If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <[email protected]>.

Thanks,
Sasha

------------------ original commit in Linus's tree ------------------

From 70b0faae3590c628a98a627a10e5d211310169d4 Mon Sep 17 00:00:00 2001
From: Tiezhu Yang <[email protected]>
Date: Tue, 10 Feb 2026 19:31:13 +0800
Subject: [PATCH] LoongArch: Guard percpu handler under !CONFIG_PREEMPT_RT

After commit 88fd2b70120d ("LoongArch: Fix sleeping in atomic context for PREEMPT_RT"), it should guard percpu handler under !CONFIG_PREEMPT_RT to avoid redundant operations.

---
 arch/loongarch/kernel/unwind_prologue.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

index 729e775bd40dd..ee1c29686ab05 100644
@@ -65,7 +65,7 @@ static inline bool scan_handlers(unsigned long entry_offset)
 
 static inline bool fix_exception(unsigned long pc)
 {
-#ifdef CONFIG_NUMA
+#if defined(CONFIG_NUMA) && !defined(CONFIG_PREEMPT_RT)
 	int cpu;
 
 	for_each_possible_cpu(cpu) {

2.51.0