4 files changed, 16 insertions, 24 deletions

diff --git a/arch/s390/boot/mem_detect.c b/arch/s390/boot/mem_detect.c
index 4cb771ba13fa..5d316fe40480 100644
--- a/arch/s390/boot/mem_detect.c
+++ b/arch/s390/boot/mem_detect.c
@@ -25,7 +25,7 @@ static void *mem_detect_alloc_extended(void)
 {
 	unsigned long offset = ALIGN(mem_safe_offset(), sizeof(u64));
 
-	if (IS_ENABLED(BLK_DEV_INITRD) && INITRD_START && INITRD_SIZE &&
+	if (IS_ENABLED(CONFIG_BLK_DEV_INITRD) && INITRD_START && INITRD_SIZE &&
 	    INITRD_START < offset + ENTRIES_EXTENDED_MAX)
 		offset = ALIGN(INITRD_START + INITRD_SIZE, sizeof(u64));
 
diff --git a/arch/s390/include/asm/syscall.h b/arch/s390/include/asm/syscall.h
index 96f9a9151fde..59c3e91f2cdb 100644
--- a/arch/s390/include/asm/syscall.h
+++ b/arch/s390/include/asm/syscall.h
@@ -56,40 +56,32 @@ static inline void syscall_set_return_value(struct task_struct *task,
 
 static inline void syscall_get_arguments(struct task_struct *task,
 					 struct pt_regs *regs,
-					 unsigned int i, unsigned int n,
 					 unsigned long *args)
 {
 	unsigned long mask = -1UL;
+	unsigned int n = 6;
 
-	/*
-	 * No arguments for this syscall, there's nothing to do.
-	 */
-	if (!n)
-		return;
-
-	BUG_ON(i + n > 6);
 #ifdef CONFIG_COMPAT
 	if (test_tsk_thread_flag(task, TIF_31BIT))
 		mask = 0xffffffff;
 #endif
 	while (n-- > 0)
-		if (i + n > 0)
-			args[n] = regs->gprs[2 + i + n] & mask;
-	if (i == 0)
-		args[0] = regs->orig_gpr2 & mask;
+		if (n > 0)
+			args[n] = regs->gprs[2 + n] & mask;
+
+	args[0] = regs->orig_gpr2 & mask;
 }
 
 static inline void syscall_set_arguments(struct task_struct *task,
 					 struct pt_regs *regs,
-					 unsigned int i, unsigned int n,
 					 const unsigned long *args)
 {
-	BUG_ON(i + n > 6);
+	unsigned int n = 6;
+
 	while (n-- > 0)
-		if (i + n > 0)
-			regs->gprs[2 + i + n] = args[n];
-	if (i == 0)
-		regs->orig_gpr2 = args[0];
+		if (n > 0)
+			regs->gprs[2 + n] = args[n];
+	regs->orig_gpr2 = args[0];
 }
 
 static inline int syscall_get_arch(void)
diff --git a/arch/s390/kernel/fpu.c b/arch/s390/kernel/fpu.c
index 594464f2129d..0da378e2eb25 100644
--- a/arch/s390/kernel/fpu.c
+++ b/arch/s390/kernel/fpu.c
@@ -23,7 +23,7 @@ void __kernel_fpu_begin(struct kernel_fpu *state, u32 flags)
 
 	if (flags & KERNEL_FPC)
 		/* Save floating point control */
-		asm volatile("stfpc %0" : "=m" (state->fpc));
+		asm volatile("stfpc %0" : "=Q" (state->fpc));
 
 	if (!MACHINE_HAS_VX) {
 		if (flags & KERNEL_VXR_V0V7) {
diff --git a/arch/s390/kernel/vtime.c b/arch/s390/kernel/vtime.c
index a69a0911ed0e..c475ca49cfc6 100644
--- a/arch/s390/kernel/vtime.c
+++ b/arch/s390/kernel/vtime.c
@@ -37,7 +37,7 @@ static inline u64 get_vtimer(void)
 {
 	u64 timer;
 
-	asm volatile("stpt %0" : "=m" (timer));
+	asm volatile("stpt %0" : "=Q" (timer));
 	return timer;
 }
 
@@ -48,7 +48,7 @@ static inline void set_vtimer(u64 expires)
 	asm volatile(
 		"	stpt	%0\n"	/* Store current cpu timer value */
 		"	spt	%1"	/* Set new value imm. afterwards */
-		: "=m" (timer) : "m" (expires));
+		: "=Q" (timer) : "Q" (expires));
 	S390_lowcore.system_timer += S390_lowcore.last_update_timer - timer;
 	S390_lowcore.last_update_timer = expires;
 }
@@ -135,8 +135,8 @@ static int do_account_vtime(struct task_struct *tsk)
 #else
 		"	stck	%1"	/* Store current tod clock value */
 #endif
-		: "=m" (S390_lowcore.last_update_timer),
-		  "=m" (S390_lowcore.last_update_clock));
+		: "=Q" (S390_lowcore.last_update_timer),
+		  "=Q" (S390_lowcore.last_update_clock));
 	clock = S390_lowcore.last_update_clock - clock;
 	timer -= S390_lowcore.last_update_timer;