[PATCH 11/14] objtool: Allow empty alternatives
From: Josh Poimboeuf <jpoimboe@kernel.org>
Date: 2026-03-05 03:31:57
Also in:
live-patching, lkml
Subsystem:
objtool, the rest · Maintainers:
Josh Poimboeuf, Peter Zijlstra, Linus Torvalds
arm64 can have empty alternatives, which are effectively no-ops. Ignore them. Signed-off-by: Josh Poimboeuf <jpoimboe@kernel.org> --- tools/objtool/check.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a/tools/objtool/check.c b/tools/objtool/check.c
index 23cde2de66b9..036adbd67488 100644
--- a/tools/objtool/check.c
+++ b/tools/objtool/check.c@@ -1994,10 +1994,8 @@ static int add_special_section_alts(struct objtool_file *file) } if (special_alt->group) { - if (!special_alt->orig_len) { - ERROR_INSN(orig_insn, "empty alternative entry"); + if (!special_alt->orig_len) continue; - } if (handle_group_alt(file, special_alt, orig_insn, &new_insn)) return -1;
--
2.53.0