From mboxrd@z Thu Jan 1 00:00:00 1970 From: Christian Borntraeger Subject: [PATCH 03/12] s390/bitops: add test_and_clear_bit_inv() Date: Tue, 16 Jan 2018 21:02:08 +0100 Message-ID: <20180116200217.211897-4-borntraeger@de.ibm.com> References: <20180116200217.211897-1-borntraeger@de.ibm.com> Return-path: In-Reply-To: <20180116200217.211897-1-borntraeger@de.ibm.com> Sender: kvm-owner@vger.kernel.org List-Archive: List-Post: To: Cornelia Huck Cc: KVM , Christian Borntraeger , linux-s390 , Janosch Frank , David Hildenbrand , Michael Mueller List-ID: From: Jens Freimann This patch adds a MSB0 bit numbering version of test_and_clear_bit(). Signed-off-by: Jens Freimann Signed-off-by: Michael Mueller Reviewed-by: Pierre Morel Reviewed-by: Halil Pasic Reviewed-by: Christian Borntraeger Signed-off-by: Christian Borntraeger --- 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 31e400c1a1f3..86e5b2fdee3c 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