From 7d5c2f679147859c1db97d9f66366ff16909abee Mon Sep 17 00:00:00 2001
From: Bastian Blank <waldi@debian.org>
Date: Thu, 18 Jun 2026 18:12:42 +0200
Subject: [PATCH] s390: Add build salt to the vDSO

The vDSO needs to have a unique build id in a similar manner
to the kernel and modules. Use the build salt macro.

Signed-off-by: Bastian Blank <waldi@debian.org>
Reviewed-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
---
 arch/s390/kernel/vdso/note.S | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/arch/s390/kernel/vdso/note.S b/arch/s390/kernel/vdso/note.S
index db19d0680a0a..d215781f26b5 100644
--- a/arch/s390/kernel/vdso/note.S
+++ b/arch/s390/kernel/vdso/note.S
@@ -4,6 +4,7 @@
  * Here we can supply some information useful to userland.
  */
 
+#include <linux/build-salt.h>
 #include <linux/uts.h>
 #include <linux/version.h>
 #include <linux/elfnote.h>
@@ -11,3 +12,5 @@
 ELFNOTE_START(Linux, 0, "a")
 	.long LINUX_VERSION_CODE
 ELFNOTE_END
+
+BUILD_SALT