Patch "objtool: Use existing global variables for options" has been added to the 4.14-stable tree

Patch "objtool: Use existing global variables for options" has been added to the 4.14-stable tree

[gregkh]

This is a note to let you know that I've just added the patch titled

    objtool: Use existing global variables for options

to the 4.14-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     objtool-use-existing-global-variables-for-options.patch
and it can be found in the queue-4.14 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.


>From 43a4525f80534530077683f6472d8971646b0ace Mon Sep 17 00:00:00 2001
From: Peter Zijlstra <peterz@infradead.org>
Date: Tue, 16 Jan 2018 17:16:32 +0100
Subject: objtool: Use existing global variables for options

From: Peter Zijlstra <peterz@infradead.org>

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@infradead.org>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Arjan van de Ven <arjan@linux.intel.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 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);


Patches currently in stable-queue which might be from peterz@infradead.org are

queue-4.14/x86-kprobes-fix-kernel-crash-when-probing-.entry_trampoline-code.patch
queue-4.14/objtool-fix-32-bit-build.patch
queue-4.14/x86-boot-objtool-annotate-indirect-jump-in-secondary_startup_64.patch
queue-4.14/objtool-add-module-specific-retpoline-rules.patch
queue-4.14/x86-retpoline-support-retpoline-builds-with-clang.patch
queue-4.14/x86-ldt-avoid-warning-in-32-bit-builds-with-older-gcc.patch
queue-4.14/x86-entry-reduce-the-code-footprint-of-the-idtentry-macro.patch
queue-4.14/objtool-retpolines-integrate-objtool-with-retpoline-support-more-closely.patch
queue-4.14/revert-x86-retpoline-simplify-vmexit_fill_rsb.patch
queue-4.14/nospec-include-asm-barrier.h-dependency.patch
queue-4.14/x86-mm-remove-stale-comment-about-kmemcheck.patch
queue-4.14/objtool-add-retpoline-validation.patch
queue-4.14/x86-mm-sme-objtool-annotate-indirect-call-in-sme_encrypt_execute.patch
queue-4.14/x86-speculation-use-ibrs-if-available-before-calling-into-firmware.patch
queue-4.14/x86-asm-improve-how-gen_-_suffixed_rmwcc-specify-clobbers.patch
queue-4.14/x86-64-realmode-add-instruction-suffix.patch
queue-4.14/objtool-fix-another-switch-table-detection-issue.patch
queue-4.14/x86-speculation-move-firmware_restrict_branch_speculation_-from-c-to-cpp.patch
queue-4.14/x86-speculation-objtool-annotate-indirect-calls-jumps-for-objtool.patch
queue-4.14/x86-paravirt-objtool-annotate-indirect-calls.patch
queue-4.14/objtool-use-existing-global-variables-for-options.patch
queue-4.14/x86-entry-64-use-xorl-for-faster-register-clearing.patch
queue-4.14/nospec-kill-array_index_nospec_mask_check.patch
queue-4.14/lib-bug.c-exclude-non-bug-warn-exceptions-from-report_bug.patch