s390/etr,stp: use -EOPNOTSUPP instead of -ENOSYS

Change -ENOSYS to -EOPNOTSUPP. Return value is used only internally.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

arch/s390/include/asm/etr.h

@@ -140,7 +140,7 @@ struct etr_ptff_qto {
 /* Inline assembly helper functions */
 static inline int etr_setr(struct etr_eacr *ctrl)
 {
-	int rc = -ENOSYS;
+	int rc = -EOPNOTSUPP;
 
 	asm volatile(
 		"	.insn	s,0xb2160000,%1\n"
@@ -154,7 +154,7 @@ static inline int etr_setr(struct etr_eacr *ctrl)
 /* Stores a format 1 aib with 64 bytes */
 static inline int etr_stetr(struct etr_aib *aib)
 {
-	int rc = -ENOSYS;
+	int rc = -EOPNOTSUPP;
 
 	asm volatile(
 		"	.insn	s,0xb2170000,%1\n"
@@ -169,7 +169,7 @@ static inline int etr_stetr(struct etr_aib *aib)
 static inline int etr_steai(struct etr_aib *aib, unsigned int func)
 {
 	register unsigned int reg0 asm("0") = func;
-	int rc = -ENOSYS;
+	int rc = -EOPNOTSUPP;
 
 	asm volatile(
 		"	.insn	s,0xb2b30000,%1\n"
@@ -190,7 +190,7 @@ static inline int etr_ptff(void *ptff_block, unsigned int func)
 {
 	register unsigned int reg0 asm("0") = func;
 	register unsigned long reg1 asm("1") = (unsigned long) ptff_block;
-	int rc = -ENOSYS;
+	int rc = -EOPNOTSUPP;
 
 	asm volatile(
 		"	.word	0x0104\n"

arch/s390/kernel/time.c

@@ -329,7 +329,7 @@ static unsigned long clock_sync_flags;
  * The synchronous get_clock function. It will write the current clock
  * value to the clock pointer and return 0 if the clock is in sync with
  * the external time source. If the clock mode is local it will return
- * -ENOSYS and -EAGAIN if the clock is not in sync with the external
+ * -EOPNOTSUPP and -EAGAIN if the clock is not in sync with the external
  * reference.
  */
 int get_sync_clock(unsigned long long *clock)
@@ -347,7 +347,7 @@ int get_sync_clock(unsigned long long *clock)
 		return 0;
 	if (!test_bit(CLOCK_SYNC_HAS_ETR, &clock_sync_flags) &&
 	    !test_bit(CLOCK_SYNC_HAS_STP, &clock_sync_flags))
-		return -ENOSYS;
+		return -EOPNOTSUPP;
 	if (!test_bit(CLOCK_SYNC_ETR, &clock_sync_flags) &&
 	    !test_bit(CLOCK_SYNC_STP, &clock_sync_flags))
 		return -EACCES;

drivers/s390/block/dasd_eckd.c

@@ -211,7 +211,7 @@ check_XRC (struct ccw1         *de_ccw,
 
 	rc = get_sync_clock(&data->ep_sys_time);
 	/* Ignore return code if sync clock is switched off. */
-	if (rc == -ENOSYS || rc == -EACCES)
+	if (rc == -EOPNOTSUPP || rc == -EACCES)
 		rc = 0;
 
 	de_ccw->count = sizeof(struct DE_eckd_data);
@@ -322,7 +322,7 @@ static int check_XRC_on_prefix(struct PFX_eckd_data *pfxdata,
 
 	rc = get_sync_clock(&pfxdata->define_extent.ep_sys_time);
 	/* Ignore return code if sync clock is switched off. */
-	if (rc == -ENOSYS || rc == -EACCES)
+	if (rc == -EOPNOTSUPP || rc == -EACCES)
 		rc = 0;
 	return rc;
 }