[PATCH 4.15 097/146] objtool: Use existing global variables for options

From: Greg Kroah-Hartman
Date: Tue Mar 13 2018 - 11:33:55 EST


4.15-stable review patch. If anyone has any objections, please let me know.

------------------

From: Peter Zijlstra <peterz@xxxxxxxxxxxxx>

commit 43a4525f80534530077683f6472d8971646b0ace upstream.

Use the existing global variables instead of passing them around and
creating duplicate global variables.

Signed-off-by: Peter Zijlstra (Intel) <peterz@xxxxxxxxxxxxx>
Acked-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Acked-by: Josh Poimboeuf <jpoimboe@xxxxxxxxxx>
Cc: Andy Lutomirski <luto@xxxxxxxxxx>
Cc: Arjan van de Ven <arjan@xxxxxxxxxxxxxxx>
Cc: Borislav Petkov <bp@xxxxxxxxx>
Cc: Dan Williams <dan.j.williams@xxxxxxxxx>
Cc: Dave Hansen <dave.hansen@xxxxxxxxxxxxxxx>
Cc: David Woodhouse <dwmw2@xxxxxxxxxxxxx>
Cc: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
Cc: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Signed-off-by: Ingo Molnar <mingo@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---
tools/objtool/builtin-check.c | 2 +-
tools/objtool/builtin-orc.c | 6 +-----
tools/objtool/builtin.h | 5 +++++
tools/objtool/check.c | 5 ++---
tools/objtool/check.h | 2 +-
5 files changed, 10 insertions(+), 10 deletions(-)

--- a/tools/objtool/builtin-check.c
+++ b/tools/objtool/builtin-check.c
@@ -53,5 +53,5 @@ int cmd_check(int argc, const char **arg

objname = argv[0];

- return check(objname, no_fp, no_unreachable, false);
+ return check(objname, false);
}
--- a/tools/objtool/builtin-orc.c
+++ b/tools/objtool/builtin-orc.c
@@ -25,7 +25,6 @@
*/

#include <string.h>
-#include <subcmd/parse-options.h>
#include "builtin.h"
#include "check.h"

@@ -36,9 +35,6 @@ static const char *orc_usage[] = {
NULL,
};

-extern const struct option check_options[];
-extern bool no_fp, no_unreachable;
-
int cmd_orc(int argc, const char **argv)
{
const char *objname;
@@ -54,7 +50,7 @@ int cmd_orc(int argc, const char **argv)

objname = argv[0];

- return check(objname, no_fp, no_unreachable, true);
+ return check(objname, true);
}

if (!strcmp(argv[0], "dump")) {
--- a/tools/objtool/builtin.h
+++ b/tools/objtool/builtin.h
@@ -17,6 +17,11 @@
#ifndef _BUILTIN_H
#define _BUILTIN_H

+#include <subcmd/parse-options.h>
+
+extern const struct option check_options[];
+extern bool no_fp, no_unreachable;
+
extern int cmd_check(int argc, const char **argv);
extern int cmd_orc(int argc, const char **argv);

--- a/tools/objtool/check.c
+++ b/tools/objtool/check.c
@@ -18,6 +18,7 @@
#include <string.h>
#include <stdlib.h>

+#include "builtin.h"
#include "check.h"
#include "elf.h"
#include "special.h"
@@ -33,7 +34,6 @@ struct alternative {
};

const char *objname;
-static bool no_fp;
struct cfi_state initial_func_cfi;

struct instruction *find_insn(struct objtool_file *file,
@@ -2021,13 +2021,12 @@ static void cleanup(struct objtool_file
elf_close(file->elf);
}

-int check(const char *_objname, bool _no_fp, bool no_unreachable, bool orc)
+int check(const char *_objname, bool orc)
{
struct objtool_file file;
int ret, warnings = 0;

objname = _objname;
- no_fp = _no_fp;

file.elf = elf_open(objname, orc ? O_RDWR : O_RDONLY);
if (!file.elf)
--- a/tools/objtool/check.h
+++ b/tools/objtool/check.h
@@ -63,7 +63,7 @@ struct objtool_file {
bool ignore_unreachables, c_file, hints;
};

-int check(const char *objname, bool no_fp, bool no_unreachable, bool orc);
+int check(const char *objname, bool orc);

struct instruction *find_insn(struct objtool_file *file,
struct section *sec, unsigned long offset);