[S390] cio: inline assembly cleanup

Fix incorrect in- and output constraints, remove volatile declaration
of inline assembly parameters and reformat constraint declarations to
be more consistent.

Signed-off-by: Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

3 files changed, 45 insertions, 28 deletions

diff --git a/drivers/s390/cio/cio.c b/drivers/s390/cio/cio.c
index 719d6c4..030083f 100644
--- a/drivers/s390/cio/cio.c
+++ b/drivers/s390/cio/cio.c
@@ -901,7 +901,7 @@ static void cio_reset_pgm_check_handler(void)
 	pgm_check_occured = 1;
 }
 
-static int stsch_reset(struct subchannel_id schid, volatile struct schib *addr)
+static int stsch_reset(struct subchannel_id schid, struct schib *addr)
 {
 	int rc;
 
diff --git a/drivers/s390/cio/io_sch.h b/drivers/s390/cio/io_sch.h
index 3f8f1cf..c4f3e7c 100644
--- a/drivers/s390/cio/io_sch.h
+++ b/drivers/s390/cio/io_sch.h
@@ -123,7 +123,7 @@ struct ccw_device_private {
 	void *cmb_wait;			/* deferred cmb enable/disable */
 };
 
-static inline int ssch(struct subchannel_id schid, volatile union orb *addr)
+static inline int ssch(struct subchannel_id schid, union orb *addr)
 {
 	register struct subchannel_id reg1 asm("1") = schid;
 	int ccode = -EIO;
@@ -134,7 +134,9 @@ static inline int ssch(struct subchannel_id schid, volatile union orb *addr)
 		"	srl	%0,28\n"
 		"1:\n"
 		EX_TABLE(0b, 1b)
-		: "+d" (ccode) : "d" (reg1), "a" (addr), "m" (*addr) : "cc");
+		: "+d" (ccode)
+		: "d" (reg1), "a" (addr), "m" (*addr)
+		: "cc", "memory");
 	return ccode;
 }
 
@@ -147,7 +149,9 @@ static inline int rsch(struct subchannel_id schid)
 		"	rsch\n"
 		"	ipm	%0\n"
 		"	srl	%0,28"
-		: "=d" (ccode) : "d" (reg1) : "cc");
+		: "=d" (ccode)
+		: "d" (reg1)
+		: "cc", "memory");
 	return ccode;
 }
 
@@ -160,7 +164,9 @@ static inline int csch(struct subchannel_id schid)
 		"	csch\n"
 		"	ipm	%0\n"
 		"	srl	%0,28"
-		: "=d" (ccode) : "d" (reg1) : "cc");
+		: "=d" (ccode)
+		: "d" (reg1)
+		: "cc");
 	return ccode;
 }
 
@@ -173,7 +179,9 @@ static inline int hsch(struct subchannel_id schid)
 		"	hsch\n"
 		"	ipm	%0\n"
 		"	srl	%0,28"
-		: "=d" (ccode) : "d" (reg1) : "cc");
+		: "=d" (ccode)
+		: "d" (reg1)
+		: "cc");
 	return ccode;
 }
 
@@ -186,7 +194,9 @@ static inline int xsch(struct subchannel_id schid)
 		"	.insn	rre,0xb2760000,%1,0\n"
 		"	ipm	%0\n"
 		"	srl	%0,28"
-		: "=d" (ccode) : "d" (reg1) : "cc");
+		: "=d" (ccode)
+		: "d" (reg1)
+		: "cc");
 	return ccode;
 }
 
diff --git a/drivers/s390/cio/ioasm.h b/drivers/s390/cio/ioasm.h
index 9fa2ac1..7592627 100644
--- a/drivers/s390/cio/ioasm.h
+++ b/drivers/s390/cio/ioasm.h
@@ -23,38 +23,39 @@ struct tpi_info {
  * Some S390 specific IO instructions as inline
  */
 
-static inline int stsch(struct subchannel_id schid,
-			    volatile struct schib *addr)
+static inline int stsch(struct subchannel_id schid, struct schib *addr)
 {
 	register struct subchannel_id reg1 asm ("1") = schid;
 	int ccode;
 
 	asm volatile(
-		"	stsch	0(%2)\n"
+		"	stsch	0(%3)\n"
 		"	ipm	%0\n"
 		"	srl	%0,28"
-		: "=d" (ccode) : "d" (reg1), "a" (addr), "m" (*addr) : "cc");
+		: "=d" (ccode), "=m" (*addr)
+		: "d" (reg1), "a" (addr)
+		: "cc");
 	return ccode;
 }
 
-static inline int stsch_err(struct subchannel_id schid,
-				volatile struct schib *addr)
+static inline int stsch_err(struct subchannel_id schid, struct schib *addr)
 {
 	register struct subchannel_id reg1 asm ("1") = schid;
 	int ccode = -EIO;
 
 	asm volatile(
-		"	stsch	0(%2)\n"
+		"	stsch	0(%3)\n"
 		"0:	ipm	%0\n"
 		"	srl	%0,28\n"
 		"1:\n"
 		EX_TABLE(0b,1b)
-		: "+d" (ccode) : "d" (reg1), "a" (addr), "m" (*addr) : "cc");
+		: "+d" (ccode), "=m" (*addr)
+		: "d" (reg1), "a" (addr)
+		: "cc");
 	return ccode;
 }
 
-static inline int msch(struct subchannel_id schid,
-			   volatile struct schib *addr)
+static inline int msch(struct subchannel_id schid, struct schib *addr)
 {
 	register struct subchannel_id reg1 asm ("1") = schid;
 	int ccode;
@@ -63,12 +64,13 @@ static inline int msch(struct subchannel_id schid,
 		"	msch	0(%2)\n"
 		"	ipm	%0\n"
 		"	srl	%0,28"
-		: "=d" (ccode) : "d" (reg1), "a" (addr), "m" (*addr) : "cc");
+		: "=d" (ccode)
+		: "d" (reg1), "a" (addr), "m" (*addr)
+		: "cc");
 	return ccode;
 }
 
-static inline int msch_err(struct subchannel_id schid,
-			       volatile struct schib *addr)
+static inline int msch_err(struct subchannel_id schid, struct schib *addr)
 {
 	register struct subchannel_id reg1 asm ("1") = schid;
 	int ccode = -EIO;
@@ -79,33 +81,38 @@ static inline int msch_err(struct subchannel_id schid,
 		"	srl	%0,28\n"
 		"1:\n"
 		EX_TABLE(0b,1b)
-		: "+d" (ccode) : "d" (reg1), "a" (addr), "m" (*addr) : "cc");
+		: "+d" (ccode)
+		: "d" (reg1), "a" (addr), "m" (*addr)
+		: "cc");
 	return ccode;
 }
 
-static inline int tsch(struct subchannel_id schid,
-			   volatile struct irb *addr)
+static inline int tsch(struct subchannel_id schid, struct irb *addr)
 {
 	register struct subchannel_id reg1 asm ("1") = schid;
 	int ccode;
 
 	asm volatile(
-		"	tsch	0(%2)\n"
+		"	tsch	0(%3)\n"
 		"	ipm	%0\n"
 		"	srl	%0,28"
-		: "=d" (ccode) : "d" (reg1), "a" (addr), "m" (*addr) : "cc");
+		: "=d" (ccode), "=m" (*addr)
+		: "d" (reg1), "a" (addr)
+		: "cc");
 	return ccode;
 }
 
-static inline int tpi( volatile struct tpi_info *addr)
+static inline int tpi(struct tpi_info *addr)
 {
 	int ccode;
 
 	asm volatile(
-		"	tpi	0(%1)\n"
+		"	tpi	0(%2)\n"
 		"	ipm	%0\n"
 		"	srl	%0,28"
-		: "=d" (ccode) : "a" (addr), "m" (*addr) : "cc");
+		: "=d" (ccode), "=m" (*addr)
+		: "a" (addr)
+		: "cc");
 	return ccode;
 }