[GIT PULL 13/22] s390/bitops: add test_and_clear_bit_inv()

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From: Jens Freimann <jfrei@xxxxxxxxxxxxxxxxxx>

This patch adds a MSB0 bit numbering version of test_and_clear_bit().

Signed-off-by: Jens Freimann <jfrei@xxxxxxxxxxxxxxxxxx>
Signed-off-by: Michael Mueller <mimu@xxxxxxxxxxxxxxxxxx>
Reviewed-by: Pierre Morel <pmorel@xxxxxxxxxxxxxxxxxx>
Reviewed-by: Halil Pasic <pasic@xxxxxxxxxxxxxxxxxx>
Reviewed-by: Christian Borntraeger <borntraeger@xxxxxxxxxx>
Reviewed-by: David Hildenbrand <david@xxxxxxxxxx>
Reviewed-by: Cornelia Huck <cohuck@xxxxxxxxxx>
Acked-by: Martin Schwidefsky <schwidefsky@xxxxxxxxxx>
Signed-off-by: Christian Borntraeger <borntraeger@xxxxxxxxxx>
---
 arch/s390/include/asm/bitops.h | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/arch/s390/include/asm/bitops.h b/arch/s390/include/asm/bitops.h
index 31e400c1a1f35..86e5b2fdee3c8 100644
--- a/arch/s390/include/asm/bitops.h
+++ b/arch/s390/include/asm/bitops.h
@@ -261,6 +261,11 @@ 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)
+{
+	return test_and_clear_bit(nr ^ (BITS_PER_LONG - 1), ptr);
+}
+
 static inline void __set_bit_inv(unsigned long nr, volatile unsigned long *ptr)
 {
 	return __set_bit(nr ^ (BITS_PER_LONG - 1), ptr);
-- 
2.13.4




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