s390/bitops: make test functions return bool

Make s390/bitops test functions return bool values. That enforces return
value range to 0 and 1 and matches with asm-generic/bitops-instrumented.h
declarations as well as some other architectures implementations.
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>

arch/s390/include/asm/bitops.h

@@ -35,6 +35,7 @@
 
 #include <linux/typecheck.h>
 #include <linux/compiler.h>
+#include <linux/types.h>
 #include <asm/atomic_ops.h>
 #include <asm/barrier.h>
 
@@ -118,7 +119,7 @@ static inline void change_bit(unsigned long nr, volatile unsigned long *ptr)
 	__atomic64_xor(mask, (long *)addr);
 }
 
-static inline int
+static inline bool
 test_and_set_bit(unsigned long nr, volatile unsigned long *ptr)
 {
 	unsigned long *addr = __bitops_word(nr, ptr);
@@ -129,7 +130,7 @@ test_and_set_bit(unsigned long nr, volatile unsigned long *ptr)
 	return (old & mask) != 0;
 }
 
-static inline int
+static inline bool
 test_and_clear_bit(unsigned long nr, volatile unsigned long *ptr)
 {
 	unsigned long *addr = __bitops_word(nr, ptr);
@@ -140,7 +141,7 @@ test_and_clear_bit(unsigned long nr, volatile unsigned long *ptr)
 	return (old & ~mask) != 0;
 }
 
-static inline int
+static inline bool
 test_and_change_bit(unsigned long nr, volatile unsigned long *ptr)
 {
 	unsigned long *addr = __bitops_word(nr, ptr);
@@ -173,7 +174,7 @@ static inline void __change_bit(unsigned long nr, volatile unsigned long *ptr)
 	*addr ^= 1 << (nr & 7);
 }
 
-static inline int
+static inline bool
 __test_and_set_bit(unsigned long nr, volatile unsigned long *ptr)
 {
 	unsigned char *addr = __bitops_byte(nr, ptr);
@@ -184,7 +185,7 @@ __test_and_set_bit(unsigned long nr, volatile unsigned long *ptr)
 	return (ch >> (nr & 7)) & 1;
 }
 
-static inline int
+static inline bool
 __test_and_clear_bit(unsigned long nr, volatile unsigned long *ptr)
 {
 	unsigned char *addr = __bitops_byte(nr, ptr);
@@ -195,7 +196,7 @@ __test_and_clear_bit(unsigned long nr, volatile unsigned long *ptr)
 	return (ch >> (nr & 7)) & 1;
 }
 
-static inline int
+static inline bool
 __test_and_change_bit(unsigned long nr, volatile unsigned long *ptr)
 {
 	unsigned char *addr = __bitops_byte(nr, ptr);
@@ -206,7 +207,7 @@ __test_and_change_bit(unsigned long nr, volatile unsigned long *ptr)
 	return (ch >> (nr & 7)) & 1;
 }
 
-static inline int test_bit(unsigned long nr, const volatile unsigned long *ptr)
+static inline bool test_bit(unsigned long nr, const volatile unsigned long *ptr)
 {
 	const volatile unsigned char *addr;
 
@@ -215,7 +216,7 @@ static inline int test_bit(unsigned long nr, const volatile unsigned long *ptr)
 	return (*addr >> (nr & 7)) & 1;
 }
 
-static inline int test_and_set_bit_lock(unsigned long nr,
+static inline bool test_and_set_bit_lock(unsigned long nr,
 					 volatile unsigned long *ptr)
 {
 	if (test_bit(nr, ptr))
@@ -261,7 +262,8 @@ static inline void clear_bit_inv(unsigned long nr, volatile unsigned long *ptr)
 	return clear_bit(nr ^ (BITS_PER_LONG - 1), ptr);
 }
 
-static inline int test_and_clear_bit_inv(unsigned long nr, volatile unsigned long *ptr)
+static inline bool test_and_clear_bit_inv(unsigned long nr,
+					  volatile unsigned long *ptr)
 {
 	return test_and_clear_bit(nr ^ (BITS_PER_LONG - 1), ptr);
 }
@@ -276,7 +278,7 @@ static inline void __clear_bit_inv(unsigned long nr, volatile unsigned long *ptr
 	return __clear_bit(nr ^ (BITS_PER_LONG - 1), ptr);
 }
 
-static inline int test_bit_inv(unsigned long nr,
+static inline bool test_bit_inv(unsigned long nr,
 				const volatile unsigned long *ptr)
 {
 	return test_bit(nr ^ (BITS_PER_LONG - 1), ptr);