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Message-Id: <20200505134059.061301403@linutronix.de>
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Date:   Tue, 05 May 2020 15:16:12 +0200
From:   Thomas Gleixner <tglx@linutronix.de>
To:     LKML <linux-kernel@vger.kernel.org>
Cc:     x86@kernel.org, "Paul E. McKenney" <paulmck@kernel.org>,
        Andy Lutomirski <luto@kernel.org>,
        Alexandre Chartre <alexandre.chartre@oracle.com>,
        Frederic Weisbecker <frederic@kernel.org>,
        Paolo Bonzini <pbonzini@redhat.com>,
        Sean Christopherson <sean.j.christopherson@intel.com>,
        Masami Hiramatsu <mhiramat@kernel.org>,
        Petr Mladek <pmladek@suse.com>,
        Steven Rostedt <rostedt@goodmis.org>,
        Joel Fernandes <joel@joelfernandes.org>,
        Boris Ostrovsky <boris.ostrovsky@oracle.com>,
        Juergen Gross <jgross@suse.com>,
        Brian Gerst <brgerst@gmail.com>,
        Mathieu Desnoyers <mathieu.desnoyers@efficios.com>,
        Josh Poimboeuf <jpoimboe@redhat.com>,
        Will Deacon <will@kernel.org>
Subject: [patch V4 part 1 10/36] x86/entry: Remove the unused LOCKDEP_SYSEXIT cruft
References: <20200505131602.633487962@linutronix.de>
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No users left since two years due to commit 21d375b6b34f ("x86/entry/64:
Remove the SYSCALL64 fast path")

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/x86/entry/thunk_64.S       |    5 -----
 arch/x86/include/asm/irqflags.h |   24 ------------------------
 2 files changed, 29 deletions(-)

--- a/arch/x86/entry/thunk_64.S
+++ b/arch/x86/entry/thunk_64.S
@@ -42,10 +42,6 @@ SYM_FUNC_END(\name)
 	THUNK trace_hardirqs_off_thunk,trace_hardirqs_off_caller,1
 #endif
 
-#ifdef CONFIG_DEBUG_LOCK_ALLOC
-	THUNK lockdep_sys_exit_thunk,lockdep_sys_exit
-#endif
-
 #ifdef CONFIG_PREEMPTION
 	THUNK preempt_schedule_thunk, preempt_schedule
 	THUNK preempt_schedule_notrace_thunk, preempt_schedule_notrace
@@ -54,7 +50,6 @@ SYM_FUNC_END(\name)
 #endif
 
 #if defined(CONFIG_TRACE_IRQFLAGS) \
- || defined(CONFIG_DEBUG_LOCK_ALLOC) \
  || defined(CONFIG_PREEMPTION)
 SYM_CODE_START_LOCAL_NOALIGN(.L_restore)
 	popq %r11
--- a/arch/x86/include/asm/irqflags.h
+++ b/arch/x86/include/asm/irqflags.h
@@ -180,30 +180,6 @@ static inline int arch_irqs_disabled(voi
 #  define TRACE_IRQS_ON
 #  define TRACE_IRQS_OFF
 #endif
-#ifdef CONFIG_DEBUG_LOCK_ALLOC
-#  ifdef CONFIG_X86_64
-#    define LOCKDEP_SYS_EXIT		call lockdep_sys_exit_thunk
-#    define LOCKDEP_SYS_EXIT_IRQ \
-	TRACE_IRQS_ON; \
-	sti; \
-	call lockdep_sys_exit_thunk; \
-	cli; \
-	TRACE_IRQS_OFF;
-#  else
-#    define LOCKDEP_SYS_EXIT \
-	pushl %eax;				\
-	pushl %ecx;				\
-	pushl %edx;				\
-	call lockdep_sys_exit;			\
-	popl %edx;				\
-	popl %ecx;				\
-	popl %eax;
-#    define LOCKDEP_SYS_EXIT_IRQ
-#  endif
-#else
-#  define LOCKDEP_SYS_EXIT
-#  define LOCKDEP_SYS_EXIT_IRQ
-#endif
 #endif /* __ASSEMBLY__ */
 
 #endif