From c79b00e323efc84c2df057a963d7165a6050b8fb Mon Sep 17 00:00:00 2001
From: GuEe-GUI <2991707448@qq.com>
Date: Mon, 1 Dec 2025 17:11:57 +0800
Subject: [PATCH] [DM/PIC] Fixup SMP CPU mask list when CPU < 4

Signed-off-by: GuEe-GUI <2991707448@qq.com>
---
 components/drivers/pic/pic.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/components/drivers/pic/pic.c b/components/drivers/pic/pic.c
index 66834944287..4194692fd1d 100644
--- a/components/drivers/pic/pic.c
+++ b/components/drivers/pic/pic.c
@@ -1198,7 +1198,7 @@ static int list_irq(int argc, char**argv)
             _pic_name_max, "PIC",
             12, "Mode",
         #ifdef RT_USING_SMP
-            RT_CPUS_NR, "CPUs",
+            rt_max(RT_CPUS_NR, 4), "CPUs",
         #else
             0, 0,
         #endif
@@ -1254,6 +1254,10 @@ static int list_irq(int argc, char**argv)
 
         rt_kputs(info);
     #ifdef RT_USING_SMP
+        if (RT_CPUS_NR < 4)
+        {
+            rt_memset(&cpumask[RT_CPUS_NR], ' ', 4 - RT_CPUS_NR);
+        }
         rt_kputs(cpumask);
     #endif