x86: kill pt_regs argument of do_notify_resume()

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/arch/x86/include/asm/signal.h b/arch/x86/include/asm/signal.h
index 35e67a4..d8ff007 100644
--- a/arch/x86/include/asm/signal.h
+++ b/arch/x86/include/asm/signal.h
@@ -30,7 +30,6 @@
 #endif /* __ASSEMBLY__ */
 #include <uapi/asm/signal.h>
 #ifndef __ASSEMBLY__
-extern void do_notify_resume(struct pt_regs *, void *, __u32);
 
 #define __ARCH_HAS_SA_RESTORER
 
diff --git a/arch/x86/kernel/entry_32.S b/arch/x86/kernel/entry_32.S
index 8f3e2de..2dd59af 100644
--- a/arch/x86/kernel/entry_32.S
+++ b/arch/x86/kernel/entry_32.S
@@ -640,7 +640,7 @@
 	andb $SEGMENT_RPL_MASK, %bl
 	cmpb $USER_RPL, %bl
 	jb resume_kernel
-	xorl %edx, %edx
+	movl %ecx, %edx
 	call do_notify_resume
 	jmp resume_userspace
 
diff --git a/arch/x86/kernel/entry_64.S b/arch/x86/kernel/entry_64.S
index c1d01e6..82a5f02 100644
--- a/arch/x86/kernel/entry_64.S
+++ b/arch/x86/kernel/entry_64.S
@@ -817,7 +817,7 @@
 	testl $_TIF_DO_NOTIFY_MASK,%edx
 	jz 1f
 	movq %rsp,%rdi		# &ptregs -> arg1
-	xorl %esi,%esi		# oldset -> arg2
+	movl %edx,%esi		# thread_flags -> arg2
 	call do_notify_resume
 1:	movl $_TIF_WORK_MASK,%edi
 int_restore_rest:
@@ -1105,7 +1105,7 @@
 	ENABLE_INTERRUPTS(CLBR_NONE)
 	SAVE_REST
 	movq $-1,ORIG_RAX(%rsp)
-	xorl %esi,%esi		# oldset
+	movl %edx,%esi		# thread_flags
 	movq %rsp,%rdi		# &pt_regs
 	call do_notify_resume
 	RESTORE_REST
@@ -1519,10 +1519,9 @@
 	movq %rax,%rsp			/* switch stack for scheduling */
 	testl $_TIF_NEED_RESCHED,%ebx
 	jnz paranoid_schedule
-	movl %ebx,%edx			/* arg3: thread flags */
+	movl %ebx,%esi			/* arg2: thread flags */
 	TRACE_IRQS_ON
 	ENABLE_INTERRUPTS(CLBR_NONE)
-	xorl %esi,%esi 			/* arg2: oldset */
 	movq %rsp,%rdi 			/* arg1: &pt_regs */
 	call do_notify_resume
 	DISABLE_INTERRUPTS(CLBR_NONE)
diff --git a/arch/x86/kernel/signal.c b/arch/x86/kernel/signal.c
index 6956299..db55b7f 100644
--- a/arch/x86/kernel/signal.c
+++ b/arch/x86/kernel/signal.c
@@ -733,7 +733,7 @@
  * - triggered by the TIF_WORK_MASK flags
  */
 void
-do_notify_resume(struct pt_regs *regs, void *unused, __u32 thread_info_flags)
+do_notify_resume(struct pt_regs *regs, __u32 thread_info_flags)
 {
 	user_exit();