Merge branch 'master' into upstream

1 files changed, 234 insertions, 235 deletions

diff --git a/arch/s390/kernel/entry.S b/arch/s390/kernel/entry.S
index 0c712b78a7e8..dddc3de30401 100644
--- a/arch/s390/kernel/entry.S
+++ b/arch/s390/kernel/entry.S
@@ -4,8 +4,8 @@
  *
  *    Copyright (C) IBM Corp. 1999,2006
  *    Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com),
- *               Hartmut Penner (hp@de.ibm.com),
- *               Denis Joseph Barrow (djbarrow@de.ibm.com,barrow_dj@yahoo.com),
+ *		 Hartmut Penner (hp@de.ibm.com),
+ *		 Denis Joseph Barrow (djbarrow@de.ibm.com,barrow_dj@yahoo.com),
  *		 Heiko Carstens <heiko.carstens@de.ibm.com>
  */
 
@@ -24,29 +24,29 @@
  * Stack layout for the system_call stack entry.
  * The first few entries are identical to the user_regs_struct.
  */
-SP_PTREGS    =  STACK_FRAME_OVERHEAD
-SP_ARGS      =  STACK_FRAME_OVERHEAD + __PT_ARGS
-SP_PSW       =  STACK_FRAME_OVERHEAD + __PT_PSW
-SP_R0        =  STACK_FRAME_OVERHEAD + __PT_GPRS
-SP_R1        =  STACK_FRAME_OVERHEAD + __PT_GPRS + 4
-SP_R2        =  STACK_FRAME_OVERHEAD + __PT_GPRS + 8
-SP_R3        =  STACK_FRAME_OVERHEAD + __PT_GPRS + 12
-SP_R4        =  STACK_FRAME_OVERHEAD + __PT_GPRS + 16
-SP_R5        =  STACK_FRAME_OVERHEAD + __PT_GPRS + 20
-SP_R6        =  STACK_FRAME_OVERHEAD + __PT_GPRS + 24
-SP_R7        =  STACK_FRAME_OVERHEAD + __PT_GPRS + 28
-SP_R8        =  STACK_FRAME_OVERHEAD + __PT_GPRS + 32
-SP_R9        =  STACK_FRAME_OVERHEAD + __PT_GPRS + 36
-SP_R10       =  STACK_FRAME_OVERHEAD + __PT_GPRS + 40
-SP_R11       =  STACK_FRAME_OVERHEAD + __PT_GPRS + 44
-SP_R12       =  STACK_FRAME_OVERHEAD + __PT_GPRS + 48
-SP_R13       =  STACK_FRAME_OVERHEAD + __PT_GPRS + 52
-SP_R14       =  STACK_FRAME_OVERHEAD + __PT_GPRS + 56
-SP_R15       =  STACK_FRAME_OVERHEAD + __PT_GPRS + 60
-SP_ORIG_R2   =  STACK_FRAME_OVERHEAD + __PT_ORIG_GPR2
-SP_ILC       =  STACK_FRAME_OVERHEAD + __PT_ILC
-SP_TRAP      =  STACK_FRAME_OVERHEAD + __PT_TRAP
-SP_SIZE      =  STACK_FRAME_OVERHEAD + __PT_SIZE
+SP_PTREGS    =	STACK_FRAME_OVERHEAD
+SP_ARGS      =	STACK_FRAME_OVERHEAD + __PT_ARGS
+SP_PSW	     =	STACK_FRAME_OVERHEAD + __PT_PSW
+SP_R0	     =	STACK_FRAME_OVERHEAD + __PT_GPRS
+SP_R1	     =	STACK_FRAME_OVERHEAD + __PT_GPRS + 4
+SP_R2	     =	STACK_FRAME_OVERHEAD + __PT_GPRS + 8
+SP_R3	     =	STACK_FRAME_OVERHEAD + __PT_GPRS + 12
+SP_R4	     =	STACK_FRAME_OVERHEAD + __PT_GPRS + 16
+SP_R5	     =	STACK_FRAME_OVERHEAD + __PT_GPRS + 20
+SP_R6	     =	STACK_FRAME_OVERHEAD + __PT_GPRS + 24
+SP_R7	     =	STACK_FRAME_OVERHEAD + __PT_GPRS + 28
+SP_R8	     =	STACK_FRAME_OVERHEAD + __PT_GPRS + 32
+SP_R9	     =	STACK_FRAME_OVERHEAD + __PT_GPRS + 36
+SP_R10	     =	STACK_FRAME_OVERHEAD + __PT_GPRS + 40
+SP_R11	     =	STACK_FRAME_OVERHEAD + __PT_GPRS + 44
+SP_R12	     =	STACK_FRAME_OVERHEAD + __PT_GPRS + 48
+SP_R13	     =	STACK_FRAME_OVERHEAD + __PT_GPRS + 52
+SP_R14	     =	STACK_FRAME_OVERHEAD + __PT_GPRS + 56
+SP_R15	     =	STACK_FRAME_OVERHEAD + __PT_GPRS + 60
+SP_ORIG_R2   =	STACK_FRAME_OVERHEAD + __PT_ORIG_GPR2
+SP_ILC	     =	STACK_FRAME_OVERHEAD + __PT_ILC
+SP_TRAP      =	STACK_FRAME_OVERHEAD + __PT_TRAP
+SP_SIZE      =	STACK_FRAME_OVERHEAD + __PT_SIZE
 
 _TIF_WORK_SVC = (_TIF_SIGPENDING | _TIF_RESTORE_SIGMASK | _TIF_NEED_RESCHED | \
 		 _TIF_MCCK_PENDING | _TIF_RESTART_SVC | _TIF_SINGLE_STEP )
@@ -81,14 +81,14 @@ STACK_SIZE  = 1 << STACK_SHIFT
  *    R15 - kernel stack pointer
  */
 
-	.macro  STORE_TIMER lc_offset
+	.macro	STORE_TIMER lc_offset
 #ifdef CONFIG_VIRT_CPU_ACCOUNTING
 	stpt	\lc_offset
 #endif
 	.endm
 
 #ifdef CONFIG_VIRT_CPU_ACCOUNTING
-	.macro  UPDATE_VTIME lc_from,lc_to,lc_sum
+	.macro	UPDATE_VTIME lc_from,lc_to,lc_sum
 	lm	%r10,%r11,\lc_from
 	sl	%r10,\lc_to
 	sl	%r11,\lc_to+4
@@ -147,7 +147,7 @@ STACK_SIZE  = 1 << STACK_SHIFT
 2:
 	.endm
 
-	.macro  CREATE_STACK_FRAME psworg,savearea
+	.macro	CREATE_STACK_FRAME psworg,savearea
 	s	%r15,BASED(.Lc_spsize)	# make room for registers & psw
 	mvc	SP_PSW(8,%r15),0(%r12)	# move user PSW to stack
 	la	%r12,\psworg
@@ -160,7 +160,7 @@ STACK_SIZE  = 1 << STACK_SHIFT
 	st	%r12,__SF_BACKCHAIN(%r15)	# clear back chain
 	.endm
 
-	.macro  RESTORE_ALL psworg,sync
+	.macro	RESTORE_ALL psworg,sync
 	mvc	\psworg(8),SP_PSW(%r15) # move user PSW to lowcore
 	.if !\sync
 	ni	\psworg+1,0xfd		# clear wait state bit
@@ -177,16 +177,16 @@ STACK_SIZE  = 1 << STACK_SHIFT
  * Returns:
  *  gpr2 = prev
  */
-        .globl  __switch_to
+	.globl	__switch_to
 __switch_to:
-        basr    %r1,0
+	basr	%r1,0
 __switch_to_base:
 	tm	__THREAD_per(%r3),0xe8		# new process is using per ?
 	bz	__switch_to_noper-__switch_to_base(%r1)	# if not we're fine
-        stctl   %c9,%c11,__SF_EMPTY(%r15)	# We are using per stuff
-        clc     __THREAD_per(12,%r3),__SF_EMPTY(%r15)
-        be      __switch_to_noper-__switch_to_base(%r1)	# we got away w/o bashing TLB's
-        lctl    %c9,%c11,__THREAD_per(%r3)	# Nope we didn't
+	stctl	%c9,%c11,__SF_EMPTY(%r15)	# We are using per stuff
+	clc	__THREAD_per(12,%r3),__SF_EMPTY(%r15)
+	be	__switch_to_noper-__switch_to_base(%r1)	# we got away w/o bashing TLB's
+	lctl	%c9,%c11,__THREAD_per(%r3)	# Nope we didn't
 __switch_to_noper:
 	l	%r4,__THREAD_info(%r2)		# get thread_info of prev
 	tm	__TI_flags+3(%r4),_TIF_MCCK_PENDING # machine check pending?
@@ -195,13 +195,13 @@ __switch_to_noper:
 	l	%r4,__THREAD_info(%r3)		# get thread_info of next
 	oi	__TI_flags+3(%r4),_TIF_MCCK_PENDING # set it in next
 __switch_to_no_mcck:
-        stm     %r6,%r15,__SF_GPRS(%r15)# store __switch_to registers of prev task
+	stm	%r6,%r15,__SF_GPRS(%r15)# store __switch_to registers of prev task
 	st	%r15,__THREAD_ksp(%r2)	# store kernel stack to prev->tss.ksp
 	l	%r15,__THREAD_ksp(%r3)	# load kernel stack from next->tss.ksp
 	lm	%r6,%r15,__SF_GPRS(%r15)# load __switch_to registers of next task
 	st	%r3,__LC_CURRENT	# __LC_CURRENT = current task struct
 	lctl	%c4,%c4,__TASK_pid(%r3) # load pid to control reg. 4
-	l	%r3,__THREAD_info(%r3)  # load thread_info from task struct
+	l	%r3,__THREAD_info(%r3)	# load thread_info from task struct
 	st	%r3,__LC_THREAD_INFO
 	ahi	%r3,STACK_SIZE
 	st	%r3,__LC_KERNEL_STACK	# __LC_KERNEL_STACK = new kernel stack
@@ -213,7 +213,7 @@ __critical_start:
  * are executed with interrupts enabled.
  */
 
-	.globl  system_call
+	.globl	system_call
 system_call:
 	STORE_TIMER __LC_SYNC_ENTER_TIMER
 sysc_saveall:
@@ -233,24 +233,24 @@ sysc_update:
 #endif
 sysc_do_svc:
 	l	%r9,__LC_THREAD_INFO	# load pointer to thread_info struct
-	sla	%r7,2             # *4 and test for svc 0
-	bnz	BASED(sysc_nr_ok) # svc number > 0
+	sla	%r7,2			# *4 and test for svc 0
+	bnz	BASED(sysc_nr_ok)	# svc number > 0
 	# svc 0: system call number in %r1
 	cl	%r1,BASED(.Lnr_syscalls)
 	bnl	BASED(sysc_nr_ok)
-	lr	%r7,%r1           # copy svc number to %r7
-	sla	%r7,2             # *4
+	lr	%r7,%r1 	  # copy svc number to %r7
+	sla	%r7,2		  # *4
 sysc_nr_ok:
 	mvc	SP_ARGS(4,%r15),SP_R7(%r15)
 sysc_do_restart:
 	l	%r8,BASED(.Lsysc_table)
 	tm	__TI_flags+3(%r9),(_TIF_SYSCALL_TRACE|_TIF_SYSCALL_AUDIT)
 	l	%r8,0(%r7,%r8)	  # get system call addr.
-        bnz     BASED(sysc_tracesys)
-        basr    %r14,%r8          # call sys_xxxx
-        st      %r2,SP_R2(%r15)   # store return value (change R2 on stack)
-                                  # ATTENTION: check sys_execve_glue before
-                                  # changing anything here !!
+	bnz	BASED(sysc_tracesys)
+	basr	%r14,%r8	  # call sys_xxxx
+	st	%r2,SP_R2(%r15)   # store return value (change R2 on stack)
+				  # ATTENTION: check sys_execve_glue before
+				  # changing anything here !!
 
 sysc_return:
 	tm	SP_PSW+1(%r15),0x01	# returning to user ?
@@ -258,14 +258,14 @@ sysc_return:
 	tm	__TI_flags+3(%r9),_TIF_WORK_SVC
 	bnz	BASED(sysc_work)  # there is work to do (signals etc.)
 sysc_leave:
-        RESTORE_ALL __LC_RETURN_PSW,1
+	RESTORE_ALL __LC_RETURN_PSW,1
 
 #
 # recheck if there is more work to do
 #
 sysc_work_loop:
 	tm	__TI_flags+3(%r9),_TIF_WORK_SVC
-	bz	BASED(sysc_leave)      # there is no work to do
+	bz	BASED(sysc_leave)	# there is no work to do
 #
 # One of the work bits is on. Find out which one.
 #
@@ -284,11 +284,11 @@ sysc_work:
 
 #
 # _TIF_NEED_RESCHED is set, call schedule
-#	
-sysc_reschedule:        
-        l       %r1,BASED(.Lschedule)
-	la      %r14,BASED(sysc_work_loop)
-	br      %r1		       # call scheduler
+#
+sysc_reschedule:
+	l	%r1,BASED(.Lschedule)
+	la	%r14,BASED(sysc_work_loop)
+	br	%r1			# call scheduler
 
 #
 # _TIF_MCCK_PENDING is set, call handler
@@ -301,11 +301,11 @@ sysc_mcck_pending:
 #
 # _TIF_SIGPENDING or _TIF_RESTORE_SIGMASK is set, call do_signal
 #
-sysc_sigpending:     
+sysc_sigpending:
 	ni	__TI_flags+3(%r9),255-_TIF_SINGLE_STEP # clear TIF_SINGLE_STEP
-        la      %r2,SP_PTREGS(%r15)    # load pt_regs
-        l       %r1,BASED(.Ldo_signal)
-	basr	%r14,%r1               # call do_signal
+	la	%r2,SP_PTREGS(%r15)	# load pt_regs
+	l	%r1,BASED(.Ldo_signal)
+	basr	%r14,%r1		# call do_signal
 	tm	__TI_flags+3(%r9),_TIF_RESTART_SVC
 	bo	BASED(sysc_restart)
 	tm	__TI_flags+3(%r9),_TIF_SINGLE_STEP
@@ -317,11 +317,11 @@ sysc_sigpending:
 #
 sysc_restart:
 	ni	__TI_flags+3(%r9),255-_TIF_RESTART_SVC # clear TIF_RESTART_SVC
-	l	%r7,SP_R2(%r15)        # load new svc number
+	l	%r7,SP_R2(%r15) 	# load new svc number
 	sla	%r7,2
 	mvc	SP_R2(4,%r15),SP_ORIG_R2(%r15) # restore first argument
-	lm	%r2,%r6,SP_R2(%r15)    # load svc arguments
-	b	BASED(sysc_do_restart) # restart svc
+	lm	%r2,%r6,SP_R2(%r15)	# load svc arguments
+	b	BASED(sysc_do_restart)	# restart svc
 
 #
 # _TIF_SINGLE_STEP is set, call do_single_step
@@ -338,8 +338,8 @@ sysc_singlestep:
 # call trace before and after sys_call
 #
 sysc_tracesys:
-        l       %r1,BASED(.Ltrace)
-	la	%r2,SP_PTREGS(%r15)    # load pt_regs
+	l	%r1,BASED(.Ltrace)
+	la	%r2,SP_PTREGS(%r15)	# load pt_regs
 	la	%r3,0
 	srl	%r7,2
 	st	%r7,SP_R2(%r15)
@@ -347,19 +347,19 @@ sysc_tracesys:
 	clc	SP_R2(4,%r15),BASED(.Lnr_syscalls)
 	bnl	BASED(sysc_tracenogo)
 	l	%r8,BASED(.Lsysc_table)
-	l	%r7,SP_R2(%r15)        # strace might have changed the 
-	sll	%r7,2                  #  system call
+	l	%r7,SP_R2(%r15) 	# strace might have changed the
+	sll	%r7,2			#  system call
 	l	%r8,0(%r7,%r8)
 sysc_tracego:
 	lm	%r3,%r6,SP_R3(%r15)
 	l	%r2,SP_ORIG_R2(%r15)
-	basr	%r14,%r8          # call sys_xxx
-	st	%r2,SP_R2(%r15)   # store return value
+	basr	%r14,%r8		# call sys_xxx
+	st	%r2,SP_R2(%r15)		# store return value
 sysc_tracenogo:
 	tm	__TI_flags+3(%r9),(_TIF_SYSCALL_TRACE|_TIF_SYSCALL_AUDIT)
-        bz      BASED(sysc_return)
+	bz	BASED(sysc_return)
 	l	%r1,BASED(.Ltrace)
-	la	%r2,SP_PTREGS(%r15)    # load pt_regs
+	la	%r2,SP_PTREGS(%r15)	# load pt_regs
 	la	%r3,1
 	la	%r14,BASED(sysc_return)
 	br	%r1
@@ -367,17 +367,17 @@ sysc_tracenogo:
 #
 # a new process exits the kernel with ret_from_fork
 #
-        .globl  ret_from_fork
+	.globl	ret_from_fork
 ret_from_fork:
 	l	%r13,__LC_SVC_NEW_PSW+4
 	l	%r9,__LC_THREAD_INFO	# load pointer to thread_info struct
 	tm	SP_PSW+1(%r15),0x01	# forking a kernel thread ?
 	bo	BASED(0f)
 	st	%r15,SP_R15(%r15)	# store stack pointer for new kthread
-0:	l       %r1,BASED(.Lschedtail)
-	basr    %r14,%r1
+0:	l	%r1,BASED(.Lschedtail)
+	basr	%r14,%r1
 	TRACE_IRQS_ON
-        stosm   __SF_EMPTY(%r15),0x03     # reenable interrupts
+	stosm	__SF_EMPTY(%r15),0x03	# reenable interrupts
 	b	BASED(sysc_return)
 
 #
@@ -386,52 +386,51 @@ ret_from_fork:
 # but are called with different parameter.
 # return-address is set up above
 #
-sys_clone_glue: 
-        la      %r2,SP_PTREGS(%r15)    # load pt_regs
-        l       %r1,BASED(.Lclone)
-        br      %r1                   # branch to sys_clone
-
-sys_fork_glue:  
-        la      %r2,SP_PTREGS(%r15)    # load pt_regs
-        l       %r1,BASED(.Lfork)
-        br      %r1                   # branch to sys_fork
-
-sys_vfork_glue: 
-        la      %r2,SP_PTREGS(%r15)    # load pt_regs
-        l       %r1,BASED(.Lvfork)
-        br      %r1                   # branch to sys_vfork
-
-sys_execve_glue:        
-        la      %r2,SP_PTREGS(%r15)   # load pt_regs
-        l       %r1,BASED(.Lexecve)
-	lr      %r12,%r14             # save return address
-        basr    %r14,%r1              # call sys_execve
-        ltr     %r2,%r2               # check if execve failed
-        bnz     0(%r12)               # it did fail -> store result in gpr2
-        b       4(%r12)               # SKIP ST 2,SP_R2(15) after BASR 14,8
-                                      # in system_call/sysc_tracesys
-
-sys_sigreturn_glue:     
-        la      %r2,SP_PTREGS(%r15)   # load pt_regs as parameter
-        l       %r1,BASED(.Lsigreturn)
-        br      %r1                   # branch to sys_sigreturn
-
-sys_rt_sigreturn_glue:     
-        la      %r2,SP_PTREGS(%r15)   # load pt_regs as parameter
-        l       %r1,BASED(.Lrt_sigreturn)
-        br      %r1                   # branch to sys_sigreturn
+sys_clone_glue:
+	la	%r2,SP_PTREGS(%r15)	# load pt_regs
+	l	%r1,BASED(.Lclone)
+	br	%r1			# branch to sys_clone
 
-sys_sigaltstack_glue:
-        la      %r4,SP_PTREGS(%r15)   # load pt_regs as parameter
-        l       %r1,BASED(.Lsigaltstack)
-        br      %r1                   # branch to sys_sigreturn
+sys_fork_glue:
+	la	%r2,SP_PTREGS(%r15)	# load pt_regs
+	l	%r1,BASED(.Lfork)
+	br	%r1			# branch to sys_fork
 
+sys_vfork_glue:
+	la	%r2,SP_PTREGS(%r15)	# load pt_regs
+	l	%r1,BASED(.Lvfork)
+	br	%r1			# branch to sys_vfork
+
+sys_execve_glue:
+	la	%r2,SP_PTREGS(%r15)	# load pt_regs
+	l	%r1,BASED(.Lexecve)
+	lr	%r12,%r14		# save return address
+	basr	%r14,%r1		# call sys_execve
+	ltr	%r2,%r2			# check if execve failed
+	bnz	0(%r12)			# it did fail -> store result in gpr2
+	b	4(%r12)			# SKIP ST 2,SP_R2(15) after BASR 14,8
+					# in system_call/sysc_tracesys
+
+sys_sigreturn_glue:
+	la	%r2,SP_PTREGS(%r15)	# load pt_regs as parameter
+	l	%r1,BASED(.Lsigreturn)
+	br	%r1			# branch to sys_sigreturn
+
+sys_rt_sigreturn_glue:
+	la	%r2,SP_PTREGS(%r15)	# load pt_regs as parameter
+	l	%r1,BASED(.Lrt_sigreturn)
+	br	%r1			# branch to sys_sigreturn
+
+sys_sigaltstack_glue:
+	la	%r4,SP_PTREGS(%r15)	# load pt_regs as parameter
+	l	%r1,BASED(.Lsigaltstack)
+	br	%r1			# branch to sys_sigreturn
 
 /*
  * Program check handler routine
  */
 
-        .globl  pgm_check_handler
+	.globl	pgm_check_handler
 pgm_check_handler:
 /*
  * First we need to check for a special case:
@@ -448,8 +447,8 @@ pgm_check_handler:
  */
 	STORE_TIMER __LC_SYNC_ENTER_TIMER
 	SAVE_ALL_BASE __LC_SAVE_AREA
-        tm      __LC_PGM_INT_CODE+1,0x80 # check whether we got a per exception
-        bnz     BASED(pgm_per)           # got per exception -> special case
+	tm	__LC_PGM_INT_CODE+1,0x80 # check whether we got a per exception
+	bnz	BASED(pgm_per)		# got per exception -> special case
 	SAVE_ALL_SYNC __LC_PGM_OLD_PSW,__LC_SAVE_AREA
 	CREATE_STACK_FRAME __LC_PGM_OLD_PSW,__LC_SAVE_AREA
 #ifdef CONFIG_VIRT_CPU_ACCOUNTING
@@ -461,29 +460,29 @@ pgm_check_handler:
 pgm_no_vtime:
 #endif
 	l	%r9,__LC_THREAD_INFO	# load pointer to thread_info struct
-        l       %r3,__LC_PGM_ILC         # load program interruption code
+	l	%r3,__LC_PGM_ILC	# load program interruption code
 	la	%r8,0x7f
 	nr	%r8,%r3
 pgm_do_call:
-        l       %r7,BASED(.Ljump_table)
-        sll     %r8,2
-        l       %r7,0(%r8,%r7)		 # load address of handler routine
-        la      %r2,SP_PTREGS(%r15)	 # address of register-save area
-	la      %r14,BASED(sysc_return)
-	br      %r7			 # branch to interrupt-handler
+	l	%r7,BASED(.Ljump_table)
+	sll	%r8,2
+	l	%r7,0(%r8,%r7)		# load address of handler routine
+	la	%r2,SP_PTREGS(%r15)	# address of register-save area
+	la	%r14,BASED(sysc_return)
+	br	%r7			# branch to interrupt-handler
 
 #
 # handle per exception
 #
 pgm_per:
-        tm      __LC_PGM_OLD_PSW,0x40    # test if per event recording is on
-        bnz     BASED(pgm_per_std)       # ok, normal per event from user space
+	tm	__LC_PGM_OLD_PSW,0x40	# test if per event recording is on
+	bnz	BASED(pgm_per_std)	# ok, normal per event from user space
 # ok its one of the special cases, now we need to find out which one
-        clc     __LC_PGM_OLD_PSW(8),__LC_SVC_NEW_PSW
-        be      BASED(pgm_svcper)
+	clc	__LC_PGM_OLD_PSW(8),__LC_SVC_NEW_PSW
+	be	BASED(pgm_svcper)
 # no interesting special case, ignore PER event
-        lm      %r12,%r15,__LC_SAVE_AREA
-	lpsw    0x28
+	lm	%r12,%r15,__LC_SAVE_AREA
+	lpsw	0x28
 
 #
 # Normal per exception
@@ -507,10 +506,10 @@ pgm_no_vtime2:
 	oi	__TI_flags+3(%r9),_TIF_SINGLE_STEP # set TIF_SINGLE_STEP
 	tm	SP_PSW+1(%r15),0x01	# kernel per event ?
 	bz	BASED(kernel_per)
-	l	%r3,__LC_PGM_ILC	 # load program interruption code
+	l	%r3,__LC_PGM_ILC	# load program interruption code
 	la	%r8,0x7f
-	nr	%r8,%r3                  # clear per-event-bit and ilc
-	be	BASED(sysc_return)       # only per or per+check ?
+	nr	%r8,%r3 		# clear per-event-bit and ilc
+	be	BASED(sysc_return)	# only per or per+check ?
 	b	BASED(pgm_do_call)
 
 #
@@ -552,7 +551,7 @@ kernel_per:
  * IO interrupt handler routine
  */
 
-        .globl io_int_handler
+	.globl io_int_handler
 io_int_handler:
 	STORE_TIMER __LC_ASYNC_ENTER_TIMER
 	stck	__LC_INT_CLOCK
@@ -569,42 +568,42 @@ io_no_vtime:
 #endif
 	l	%r9,__LC_THREAD_INFO	# load pointer to thread_info struct
 	TRACE_IRQS_OFF
-        l       %r1,BASED(.Ldo_IRQ)        # load address of do_IRQ
-        la      %r2,SP_PTREGS(%r15) # address of register-save area
-        basr    %r14,%r1          # branch to standard irq handler
+	l	%r1,BASED(.Ldo_IRQ)	# load address of do_IRQ
+	la	%r2,SP_PTREGS(%r15)	# address of register-save area
+	basr	%r14,%r1		# branch to standard irq handler
 	TRACE_IRQS_ON
 
 io_return:
-        tm      SP_PSW+1(%r15),0x01    # returning to user ?
+	tm	SP_PSW+1(%r15),0x01	# returning to user ?
 #ifdef CONFIG_PREEMPT
-	bno     BASED(io_preempt)      # no -> check for preemptive scheduling
+	bno	BASED(io_preempt)	# no -> check for preemptive scheduling
 #else
-        bno     BASED(io_leave)        # no-> skip resched & signal
+	bno	BASED(io_leave) 	# no-> skip resched & signal
 #endif
 	tm	__TI_flags+3(%r9),_TIF_WORK_INT
-	bnz	BASED(io_work)         # there is work to do (signals etc.)
+	bnz	BASED(io_work)		# there is work to do (signals etc.)
 io_leave:
-        RESTORE_ALL __LC_RETURN_PSW,0
+	RESTORE_ALL __LC_RETURN_PSW,0
 io_done:
 
 #ifdef CONFIG_PREEMPT
 io_preempt:
 	icm	%r0,15,__TI_precount(%r9)
-	bnz     BASED(io_leave)
+	bnz	BASED(io_leave)
 	l	%r1,SP_R15(%r15)
 	s	%r1,BASED(.Lc_spsize)
 	mvc	SP_PTREGS(__PT_SIZE,%r1),SP_PTREGS(%r15)
-        xc      __SF_BACKCHAIN(4,%r1),__SF_BACKCHAIN(%r1) # clear back chain
+	xc	__SF_BACKCHAIN(4,%r1),__SF_BACKCHAIN(%r1) # clear back chain
 	lr	%r15,%r1
 io_resume_loop:
 	tm	__TI_flags+3(%r9),_TIF_NEED_RESCHED
 	bno	BASED(io_leave)
-	mvc     __TI_precount(4,%r9),BASED(.Lc_pactive)
-        stosm   __SF_EMPTY(%r15),0x03  # reenable interrupts
-        l       %r1,BASED(.Lschedule)
+	mvc	__TI_precount(4,%r9),BASED(.Lc_pactive)
+	stosm	__SF_EMPTY(%r15),0x03  # reenable interrupts
+	l	%r1,BASED(.Lschedule)
 	basr	%r14,%r1	       # call schedule
-        stnsm   __SF_EMPTY(%r15),0xfc  # disable I/O and ext. interrupts
-	xc      __TI_precount(4,%r9),__TI_precount(%r9)
+	stnsm	__SF_EMPTY(%r15),0xfc  # disable I/O and ext. interrupts
+	xc	__TI_precount(4,%r9),__TI_precount(%r9)
 	b	BASED(io_resume_loop)
 #endif
 
@@ -615,16 +614,16 @@ io_work:
 	l	%r1,__LC_KERNEL_STACK
 	s	%r1,BASED(.Lc_spsize)
 	mvc	SP_PTREGS(__PT_SIZE,%r1),SP_PTREGS(%r15)
-        xc      __SF_BACKCHAIN(4,%r1),__SF_BACKCHAIN(%r1) # clear back chain
+	xc	__SF_BACKCHAIN(4,%r1),__SF_BACKCHAIN(%r1) # clear back chain
 	lr	%r15,%r1
 #
 # One of the work bits is on. Find out which one.
 # Checked are: _TIF_SIGPENDING, _TIF_RESTORE_SIGMASK, _TIF_NEED_RESCHED
-#	        and _TIF_MCCK_PENDING
+#		and _TIF_MCCK_PENDING
 #
 io_work_loop:
 	tm	__TI_flags+3(%r9),_TIF_MCCK_PENDING
-	bo      BASED(io_mcck_pending)
+	bo	BASED(io_mcck_pending)
 	tm	__TI_flags+3(%r9),_TIF_NEED_RESCHED
 	bo	BASED(io_reschedule)
 	tm	__TI_flags+3(%r9),(_TIF_SIGPENDING | _TIF_RESTORE_SIGMASK)
@@ -637,36 +636,36 @@ io_work_loop:
 io_mcck_pending:
 	l	%r1,BASED(.Ls390_handle_mcck)
 	la	%r14,BASED(io_work_loop)
-	br	%r1		       # TIF bit will be cleared by handler
+	br	%r1			# TIF bit will be cleared by handler
 
 #
 # _TIF_NEED_RESCHED is set, call schedule
-#	
-io_reschedule:        
-        l       %r1,BASED(.Lschedule)
-        stosm   __SF_EMPTY(%r15),0x03  # reenable interrupts
-	basr    %r14,%r1	       # call scheduler
-        stnsm   __SF_EMPTY(%r15),0xfc  # disable I/O and ext. interrupts
+#
+io_reschedule:
+	l	%r1,BASED(.Lschedule)
+	stosm	__SF_EMPTY(%r15),0x03	# reenable interrupts
+	basr	%r14,%r1		# call scheduler
+	stnsm	__SF_EMPTY(%r15),0xfc	# disable I/O and ext. interrupts
 	tm	__TI_flags+3(%r9),_TIF_WORK_INT
-	bz	BASED(io_leave)        # there is no work to do
+	bz	BASED(io_leave) 	# there is no work to do
 	b	BASED(io_work_loop)
 
 #
 # _TIF_SIGPENDING or _TIF_RESTORE_SIGMASK is set, call do_signal
 #
-io_sigpending:     
-        stosm   __SF_EMPTY(%r15),0x03  # reenable interrupts
-        la      %r2,SP_PTREGS(%r15)    # load pt_regs
-        l       %r1,BASED(.Ldo_signal)
-	basr    %r14,%r1	       # call do_signal
-        stnsm   __SF_EMPTY(%r15),0xfc  # disable I/O and ext. interrupts
+io_sigpending:
+	stosm	__SF_EMPTY(%r15),0x03	# reenable interrupts
+	la	%r2,SP_PTREGS(%r15)	# load pt_regs
+	l	%r1,BASED(.Ldo_signal)
+	basr	%r14,%r1		# call do_signal
+	stnsm	__SF_EMPTY(%r15),0xfc	# disable I/O and ext. interrupts
 	b	BASED(io_work_loop)
 
 /*
  * External interrupt handler routine
  */
 
-        .globl  ext_int_handler
+	.globl	ext_int_handler
 ext_int_handler:
 	STORE_TIMER __LC_ASYNC_ENTER_TIMER
 	stck	__LC_INT_CLOCK
@@ -683,8 +682,8 @@ ext_no_vtime:
 #endif
 	l	%r9,__LC_THREAD_INFO	# load pointer to thread_info struct
 	TRACE_IRQS_OFF
-	la	%r2,SP_PTREGS(%r15)    # address of register-save area
-	lh	%r3,__LC_EXT_INT_CODE  # get interruption code
+	la	%r2,SP_PTREGS(%r15)	# address of register-save area
+	lh	%r3,__LC_EXT_INT_CODE	# get interruption code
 	l	%r1,BASED(.Ldo_extint)
 	basr	%r14,%r1
 	TRACE_IRQS_ON
@@ -696,13 +695,13 @@ __critical_end:
  * Machine check handler routines
  */
 
-        .globl mcck_int_handler
+	.globl mcck_int_handler
 mcck_int_handler:
 	spt	__LC_CPU_TIMER_SAVE_AREA	# revalidate cpu timer
 	lm	%r0,%r15,__LC_GPREGS_SAVE_AREA	# revalidate gprs
 	SAVE_ALL_BASE __LC_SAVE_AREA+32
 	la	%r12,__LC_MCK_OLD_PSW
-	tm	__LC_MCCK_CODE,0x80     # system damage?
+	tm	__LC_MCCK_CODE,0x80	# system damage?
 	bo	BASED(mcck_int_main)	# yes -> rest of mcck code invalid
 #ifdef CONFIG_VIRT_CPU_ACCOUNTING
 	mvc	__LC_SAVE_AREA+52(8),__LC_ASYNC_ENTER_TIMER
@@ -741,7 +740,7 @@ mcck_int_main:
 	l	%r15,__LC_PANIC_STACK	# load panic stack
 0:	CREATE_STACK_FRAME __LC_MCK_OLD_PSW,__LC_SAVE_AREA+32
 #ifdef CONFIG_VIRT_CPU_ACCOUNTING
-	tm	__LC_MCCK_CODE+2,0x08   # mwp of old psw valid?
+	tm	__LC_MCCK_CODE+2,0x08	# mwp of old psw valid?
 	bno	BASED(mcck_no_vtime)	# no -> skip cleanup critical
 	tm	SP_PSW+1(%r15),0x01	# interrupting from user ?
 	bz	BASED(mcck_no_vtime)
@@ -752,14 +751,14 @@ mcck_no_vtime:
 #endif
 	l	%r9,__LC_THREAD_INFO	# load pointer to thread_info struct
 	la	%r2,SP_PTREGS(%r15)	# load pt_regs
-	l       %r1,BASED(.Ls390_mcck)
-	basr    %r14,%r1		# call machine check handler
-	tm      SP_PSW+1(%r15),0x01	# returning to user ?
+	l	%r1,BASED(.Ls390_mcck)
+	basr	%r14,%r1		# call machine check handler
+	tm	SP_PSW+1(%r15),0x01	# returning to user ?
 	bno	BASED(mcck_return)
-	l	%r1,__LC_KERNEL_STACK   # switch to kernel stack
+	l	%r1,__LC_KERNEL_STACK	# switch to kernel stack
 	s	%r1,BASED(.Lc_spsize)
 	mvc	SP_PTREGS(__PT_SIZE,%r1),SP_PTREGS(%r15)
-	xc      __SF_BACKCHAIN(4,%r1),__SF_BACKCHAIN(%r1) # clear back chain
+	xc	__SF_BACKCHAIN(4,%r1),__SF_BACKCHAIN(%r1) # clear back chain
 	lr	%r15,%r1
 	stosm	__SF_EMPTY(%r15),0x04	# turn dat on
 	tm	__TI_flags+3(%r9),_TIF_MCCK_PENDING
@@ -783,36 +782,36 @@ mcck_return:
 	lm	%r0,%r15,SP_R0(%r15)	# load gprs 0-15
 	lpsw	__LC_RETURN_MCCK_PSW	# back to caller
 
-        RESTORE_ALL __LC_RETURN_MCCK_PSW,0
+	RESTORE_ALL __LC_RETURN_MCCK_PSW,0
 
 #ifdef CONFIG_SMP
 /*
  * Restart interruption handler, kick starter for additional CPUs
  */
-        .globl restart_int_handler
+	.globl restart_int_handler
 restart_int_handler:
-        l       %r15,__LC_SAVE_AREA+60 # load ksp
-        lctl    %c0,%c15,__LC_CREGS_SAVE_AREA # get new ctl regs
-        lam     %a0,%a15,__LC_AREGS_SAVE_AREA
-        lm      %r6,%r15,__SF_GPRS(%r15) # load registers from clone
-        stosm   __SF_EMPTY(%r15),0x04    # now we can turn dat on
-        basr    %r14,0
-        l       %r14,restart_addr-.(%r14)
-        br      %r14                   # branch to start_secondary
+	l	%r15,__LC_SAVE_AREA+60	# load ksp
+	lctl	%c0,%c15,__LC_CREGS_SAVE_AREA # get new ctl regs
+	lam	%a0,%a15,__LC_AREGS_SAVE_AREA
+	lm	%r6,%r15,__SF_GPRS(%r15) # load registers from clone
+	stosm	__SF_EMPTY(%r15),0x04	# now we can turn dat on
+	basr	%r14,0
+	l	%r14,restart_addr-.(%r14)
+	br	%r14			# branch to start_secondary
 restart_addr:
-        .long   start_secondary
+	.long	start_secondary
 #else
 /*
  * If we do not run with SMP enabled, let the new CPU crash ...
  */
-        .globl restart_int_handler
+	.globl restart_int_handler
 restart_int_handler:
-        basr    %r1,0
+	basr	%r1,0
 restart_base:
-        lpsw    restart_crash-restart_base(%r1)
-        .align 8
+	lpsw	restart_crash-restart_base(%r1)
+	.align	8
 restart_crash:
-        .long  0x000a0000,0x00000000
+	.long	0x000a0000,0x00000000
 restart_go:
 #endif
 
@@ -834,11 +833,11 @@ stack_overflow:
 	be	BASED(0f)
 	la	%r1,__LC_SAVE_AREA+16
 0:	mvc	SP_R12(16,%r15),0(%r1)	# move %r12-%r15 to stack
-        xc      __SF_BACKCHAIN(4,%r15),__SF_BACKCHAIN(%r15) # clear back chain
+	xc	__SF_BACKCHAIN(4,%r15),__SF_BACKCHAIN(%r15) # clear back chain
 	l	%r1,BASED(1f)		# branch to kernel_stack_overflow
-        la      %r2,SP_PTREGS(%r15)	# load pt_regs
+	la	%r2,SP_PTREGS(%r15)	# load pt_regs
 	br	%r1
-1:	.long  kernel_stack_overflow
+1:	.long	kernel_stack_overflow
 #endif
 
 cleanup_table_system_call:
@@ -940,10 +939,10 @@ cleanup_novtime:
 cleanup_system_call_insn:
 	.long	sysc_saveall + 0x80000000
 #ifdef CONFIG_VIRT_CPU_ACCOUNTING
-	.long   system_call + 0x80000000
-	.long   sysc_vtime + 0x80000000
-	.long   sysc_stime + 0x80000000
-	.long   sysc_update + 0x80000000
+	.long	system_call + 0x80000000
+	.long	sysc_vtime + 0x80000000
+	.long	sysc_stime + 0x80000000
+	.long	sysc_update + 0x80000000
 #endif
 
 cleanup_sysc_return:
@@ -1009,57 +1008,57 @@ cleanup_io_leave_insn:
 /*
  * Integer constants
  */
-               .align 4
-.Lc_spsize:    .long  SP_SIZE
-.Lc_overhead:  .long  STACK_FRAME_OVERHEAD
-.Lc_pactive:   .long  PREEMPT_ACTIVE
-.Lnr_syscalls: .long  NR_syscalls
-.L0x018:       .short 0x018
-.L0x020:       .short 0x020
-.L0x028:       .short 0x028
-.L0x030:       .short 0x030
-.L0x038:       .short 0x038
-.Lc_1:         .long  1
+		.align	4
+.Lc_spsize:	.long	SP_SIZE
+.Lc_overhead:	.long	STACK_FRAME_OVERHEAD
+.Lc_pactive:	.long	PREEMPT_ACTIVE
+.Lnr_syscalls:	.long	NR_syscalls
+.L0x018:	.short	0x018
+.L0x020:	.short	0x020
+.L0x028:	.short	0x028
+.L0x030:	.short	0x030
+.L0x038:	.short	0x038
+.Lc_1:		.long	1
 
 /*
  * Symbol constants
  */
-.Ls390_mcck:   .long  s390_do_machine_check
+.Ls390_mcck:	.long	s390_do_machine_check
 .Ls390_handle_mcck:
-	       .long  s390_handle_mcck
-.Lmck_old_psw: .long  __LC_MCK_OLD_PSW
-.Ldo_IRQ:      .long  do_IRQ
-.Ldo_extint:   .long  do_extint
-.Ldo_signal:   .long  do_signal
-.Lhandle_per:  .long  do_single_step
-.Ljump_table:  .long  pgm_check_table
-.Lschedule:    .long  schedule
-.Lclone:       .long  sys_clone
-.Lexecve:      .long  sys_execve
-.Lfork:        .long  sys_fork
-.Lrt_sigreturn:.long  sys_rt_sigreturn
+		.long	s390_handle_mcck
+.Lmck_old_psw:	.long	__LC_MCK_OLD_PSW
+.Ldo_IRQ:	.long	do_IRQ
+.Ldo_extint:	.long	do_extint
+.Ldo_signal:	.long	do_signal
+.Lhandle_per:	.long	do_single_step
+.Ljump_table:	.long	pgm_check_table
+.Lschedule:	.long	schedule
+.Lclone:	.long	sys_clone
+.Lexecve:	.long	sys_execve
+.Lfork: 	.long	sys_fork
+.Lrt_sigreturn: .long	sys_rt_sigreturn
 .Lrt_sigsuspend:
-               .long  sys_rt_sigsuspend
-.Lsigreturn:   .long  sys_sigreturn
-.Lsigsuspend:  .long  sys_sigsuspend
-.Lsigaltstack: .long  sys_sigaltstack
-.Ltrace:       .long  syscall_trace
-.Lvfork:       .long  sys_vfork
-.Lschedtail:   .long  schedule_tail
-.Lsysc_table:  .long  sys_call_table
+		.long	sys_rt_sigsuspend
+.Lsigreturn:	.long	sys_sigreturn
+.Lsigsuspend:	.long	sys_sigsuspend
+.Lsigaltstack:	.long	sys_sigaltstack
+.Ltrace:	.long	syscall_trace
+.Lvfork:	.long	sys_vfork
+.Lschedtail:	.long	schedule_tail
+.Lsysc_table:	.long	sys_call_table
 #ifdef CONFIG_TRACE_IRQFLAGS
-.Ltrace_irq_on:.long  trace_hardirqs_on
+.Ltrace_irq_on: .long	trace_hardirqs_on
 .Ltrace_irq_off:
-	       .long  trace_hardirqs_off
+		.long	trace_hardirqs_off
 #endif
 .Lcritical_start:
-               .long  __critical_start + 0x80000000
+		.long	__critical_start + 0x80000000
 .Lcritical_end:
-               .long  __critical_end + 0x80000000
+		.long	__critical_end + 0x80000000
 .Lcleanup_critical:
-               .long  cleanup_critical
+		.long	cleanup_critical
 
-	       .section .rodata, "a"
+		.section .rodata, "a"
 #define SYSCALL(esa,esame,emu)	.long esa
 sys_call_table:
 #include "syscalls.S"