[PATCH 2/3] objtool: Fix STACK_FRAME_NON_STANDARD for cold subfunctions
From: Josh Poimboeuf
Date: Fri Mar 28 2025 - 01:04:43 EST
The recent STACK_FRAME_NON_STANDARD refactoring forgot about .cold
subfunctions. They must also be ignored.
Fixes the following warning:
drivers/gpu/drm/vmwgfx/vmwgfx_msg.o: warning: objtool: vmw_recv_msg.cold+0x0: unreachable instruction
Fixes: c84301d706c5 ("objtool: Ignore entire functions rather than instructions")
Signed-off-by: Josh Poimboeuf <jpoimboe@xxxxxxxxxx>
---
tools/objtool/check.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/tools/objtool/check.c b/tools/objtool/check.c
index 29de1709ea00..fff9d7a2947a 100644
--- a/tools/objtool/check.c
+++ b/tools/objtool/check.c
@@ -1014,6 +1014,8 @@ static int add_ignores(struct objtool_file *file)
}
func->ignore = true;
+ if (func->cfunc)
+ func->cfunc->ignore = true;
}
return 0;
--
2.48.1