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

Commit-ID:     60041bcd8f5ab560dabf44dc384f58bbeb5a6a30
Gitweb:        
https://git.kernel.org/tip/60041bcd8f5ab560dabf44dc384f58bbeb5a6a30
Author:        Peter Zijlstra <[email protected]>
AuthorDate:    Fri, 24 Apr 2020 16:16:41 +02:00
Committer:     Peter Zijlstra <[email protected]>
CommitterDate: Thu, 30 Apr 2020 20:14:32 +02:00

objtool: Make handle_insn_ops() unconditional

Now that every instruction has a list of stack_ops; we can trivially
distinquish those instructions that do not have stack_ops, their list
is empty.

This means we can now call handle_insn_ops() unconditionally.

Suggested-by: Julien Thierry <[email protected]>
Signed-off-by: Peter Zijlstra (Intel) <[email protected]>
Reviewed-by: Miroslav Benes <[email protected]>
Acked-by: Josh Poimboeuf <[email protected]>
Link: https://lkml.kernel.org/r/[email protected]
---
 tools/objtool/check.c | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/tools/objtool/check.c b/tools/objtool/check.c
index 068897d..6591c2d 100644
--- a/tools/objtool/check.c
+++ b/tools/objtool/check.c
@@ -2259,6 +2259,9 @@ static int validate_branch(struct objtool_file *file, 
struct symbol *func,
                                return 0;
                }
 
+               if (handle_insn_ops(insn, &state))
+                       return 1;
+
                switch (insn->type) {
 
                case INSN_RETURN:
@@ -2318,9 +2321,6 @@ static int validate_branch(struct objtool_file *file, 
struct symbol *func,
                        break;
 
                case INSN_EXCEPTION_RETURN:
-                       if (handle_insn_ops(insn, &state))
-                               return 1;
-
                        /*
                         * This handles x86's sync_core() case, where we use an
                         * IRET to self. All 'normal' IRET instructions are in
@@ -2340,8 +2340,6 @@ static int validate_branch(struct objtool_file *file, 
struct symbol *func,
                        return 0;
 
                case INSN_STACK:
-                       if (handle_insn_ops(insn, &state))
-                               return 1;
                        break;
 
                case INSN_STAC:

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