1 files changed, 40 insertions, 0 deletions
diff --git a/scripts/package-build/linux-kernel/patches/kernel/0004-perf-fix-compile.patch b/scripts/package-build/linux-kernel/patches/kernel/0004-perf-fix-compile.patch
new file mode 100644
index 00000000..dc3c2614
--- /dev/null
+++ b/scripts/package-build/linux-kernel/patches/kernel/0004-perf-fix-compile.patch
@@ -0,0 +1,40 @@
+From c660a5ee919f01e7c3269ea92baf13741c8aee17 Mon Sep 17 00:00:00 2001
+From: Christian Breunig <christian@breunig.cc>
+Date: Sat, 24 Jan 2026 07:06:05 +0100
+Subject: [PATCH] tools: fix implicit declaration of function cpu_to_le16
+
+After commit 64d86c03e1441742216b6332bdfabfb6ede31662 ("perf arm-spe: Extend
+branch operations") which was also backported to the stable branches, the
+restructuring caused a missing definition.
+
+tools/include/linux/bitops.h implement
+
+define __MAKE_OP(size)                                                 \
+        ____MAKE_OP(le##size,u##size,cpu_to_le##size,le##size##_to_cpu) \
+        ____MAKE_OP(be##size,u##size,cpu_to_be##size,be##size##_to_cpu) \
+        ____MAKE_OP(u##size,u##size,,)
+____MAKE_OP(u8,u8,,)
+
+but cpu_to_le## or cpu_to_be## are not defined.
+
+Fix by including linux/kernel.h.
+
+---
+ tools/include/linux/bitfield.h | 1 +
+ 1 file changed, 1 insertion(+)
+
+diff --git a/tools/include/linux/bitfield.h b/tools/include/linux/bitfield.h
+index 6093fa6db260..ddf81f24956b 100644
+--- a/tools/include/linux/bitfield.h
++++ b/tools/include/linux/bitfield.h
+@@ -8,6 +8,7 @@
+ #define _LINUX_BITFIELD_H
+ 
+ #include <linux/build_bug.h>
++#include <linux/kernel.h>
+ #include <asm/byteorder.h>
+ 
+ /*
+-- 
+2.39.5
+