[PATCH 02/21] objtool: Fix error handling for STD/CLD warnings

[Josh Poimboeuf]

Actually return an error (and display a backtrace, if requested) for
directional bit warnings.

Fixes: 2f0f9e9ad7b3 ("objtool: Add Direction Flag validation")
Signed-off-by: Josh Poimboeuf <jpoim...@redhat.com>
---
 tools/objtool/check.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/tools/objtool/check.c b/tools/objtool/check.c
index ed26c22c8244..93c3937d1d6a 100644
--- a/tools/objtool/check.c
+++ b/tools/objtool/check.c
@@ -2592,15 +2592,19 @@ static int validate_branch(struct objtool_file *file, 
struct symbol *func,
                        break;
 
                case INSN_STD:
-                       if (state.df)
+                       if (state.df) {
                                WARN_FUNC("recursive STD", sec, insn->offset);
+                               return 1;
+                       }
 
                        state.df = true;
                        break;
 
                case INSN_CLD:
-                       if (!state.df && func)
+                       if (!state.df && func) {
                                WARN_FUNC("redundant CLD", sec, insn->offset);
+                               return 1;
+                       }
 
                        state.df = false;
                        break;
-- 
2.29.2