diff mbox

[03/12] s390/bitops: add test_and_clear_bit_inv()

Message ID 20180116200217.211897-4-borntraeger@de.ibm.com (mailing list archive)
State New, archived
Headers show

Commit Message

Christian Borntraeger Jan. 16, 2018, 8:02 p.m. UTC 
From: Jens Freimann <jfrei@linux.vnet.ibm.com>

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

Signed-off-by: Jens Freimann <jfrei@linux.vnet.ibm.com>
Signed-off-by: Michael Mueller <mimu@linux.vnet.ibm.com>
Reviewed-by: Pierre Morel <pmorel@linux.vnet.ibm.com>
Reviewed-by: Halil Pasic <pasic@linux.vnet.ibm.com>
Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
---
 arch/s390/include/asm/bitops.h | 5 +++++
 1 file changed, 5 insertions(+)

Comments

David Hildenbrand Jan. 16, 2018, 8:13 p.m. UTC | #1 
On 16.01.2018 21:02, Christian Borntraeger wrote:
> From: Jens Freimann <jfrei@linux.vnet.ibm.com>
> 
> This patch adds a MSB0 bit numbering version of test_and_clear_bit().
> 
> Signed-off-by: Jens Freimann <jfrei@linux.vnet.ibm.com>
> Signed-off-by: Michael Mueller <mimu@linux.vnet.ibm.com>
> Reviewed-by: Pierre Morel <pmorel@linux.vnet.ibm.com>
> Reviewed-by: Halil Pasic <pasic@linux.vnet.ibm.com>
> Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com>
> Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
> ---
>  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);
> 

Reviewed-by: David Hildenbrand <david@redhat.com>
Cornelia Huck Jan. 18, 2018, 4:54 p.m. UTC | #2 
On Tue, 16 Jan 2018 21:02:08 +0100
Christian Borntraeger <borntraeger@de.ibm.com> wrote:

> From: Jens Freimann <jfrei@linux.vnet.ibm.com>
> 
> This patch adds a MSB0 bit numbering version of test_and_clear_bit().
> 
> Signed-off-by: Jens Freimann <jfrei@linux.vnet.ibm.com>
> Signed-off-by: Michael Mueller <mimu@linux.vnet.ibm.com>
> Reviewed-by: Pierre Morel <pmorel@linux.vnet.ibm.com>
> Reviewed-by: Halil Pasic <pasic@linux.vnet.ibm.com>
> Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com>
> Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
> ---
>  arch/s390/include/asm/bitops.h | 5 +++++
>  1 file changed, 5 insertions(+)

Reviewed-by: Cornelia Huck <cohuck@redhat.com>
diff mbox

Patch

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);