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

Commit-ID:     d8c3e262361b04984f0322ce5b88ea52dab37318
Gitweb:        https://git.kernel.org/tip/d8c3e262361b04984f0322ce5b88ea52dab37318
Author:        Josh Poimboeuf <jpoimboe@kernel.org>
AuthorDate:    Sun, 12 Apr 2026 12:09:39 -07:00
Committer:     Josh Poimboeuf <jpoimboe@kernel.org>
CommitterDate: Mon, 04 May 2026 21:16:03 -07:00

klp-build: Reject patches to vDSO

vDSO code runs in userspace and can't be livepatched.  Such patches also
cause spurious "new function" errors due to generated files like
vdso*-image.c having unstable line numbers across builds.

Acked-by: Song Liu <song@kernel.org>
Signed-off-by: Josh Poimboeuf <jpoimboe@kernel.org>
---
 scripts/livepatch/klp-build | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/scripts/livepatch/klp-build b/scripts/livepatch/klp-build
index 9970e1f..a70d48d 100755
--- a/scripts/livepatch/klp-build
+++ b/scripts/livepatch/klp-build
@@ -357,7 +357,7 @@ check_unsupported_patches() {
 
 		for file in "${files[@]}"; do
 			case "$file" in
-				lib/*|*.S)
+				lib/*|*/vdso/*|*.S)
 					die "${patch}: unsupported patch to $file"
 					;;
 			esac