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* [PATCH] Input: Initialize input_no by -1
@ 2014-11-21 18:48 Aniroop Mathur
  2014-11-24  3:20 ` Aniroop Mathur
  2014-11-25  8:40 ` Dmitry Torokhov
  0 siblings, 2 replies; 8+ messages in thread
From: Aniroop Mathur @ 2014-11-21 18:48 UTC (permalink / raw)
  To: Dmitry Torokhov, linux-input@vger.kernel.org

This patch initializes input_no by -1 in order to avoid extra subtraction
operation performed everytime for allocation of an input device.

Signed-off-by: Aniroop Mathur <aniroop.mathur@gmail.com>
---
 drivers/input/input.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/input/input.c b/drivers/input/input.c
index 29ca0bb..01fe49e 100644
--- a/drivers/input/input.c
+++ b/drivers/input/input.c
@@ -1774,7 +1774,7 @@ EXPORT_SYMBOL_GPL(input_class);
  */
 struct input_dev *input_allocate_device(void)
 {
-       static atomic_t input_no = ATOMIC_INIT(0);
+       static atomic_t input_no = ATOMIC_INIT(-1);
        struct input_dev *dev;

        dev = kzalloc(sizeof(struct input_dev), GFP_KERNEL);
@@ -1789,7 +1789,7 @@ struct input_dev *input_allocate_device(void)
                INIT_LIST_HEAD(&dev->node);

                dev_set_name(&dev->dev, "input%ld",
-                            (unsigned long) atomic_inc_return(&input_no) - 1);
+                            (unsigned long) atomic_inc_return(&input_no));

                __module_get(THIS_MODULE);
        }
-- 
1.9.1

^ permalink raw reply related	[flat|nested] 8+ messages in thread
* Re: [PATCH] Input: Initialize input_no by -1
  2014-11-21 18:48 Aniroop Mathur
@ 2014-11-24  3:20 ` Aniroop Mathur
  2014-11-25  8:40 ` Dmitry Torokhov
  1 sibling, 0 replies; 8+ messages in thread
From: Aniroop Mathur @ 2014-11-24  3:20 UTC (permalink / raw)
  To: Dmitry Torokhov, linux-input@vger.kernel.org

Dear Mr. Torokhov and Linux-Input Community,
Greetings of the day !!

Kindly update about the below patch.

Thank you,
Aniroop Mathur


On Sat, Nov 22, 2014 at 12:18 AM, Aniroop Mathur
<aniroop.mathur@gmail.com> wrote:
>
> This patch initializes input_no by -1 in order to avoid extra subtraction
> operation performed everytime for allocation of an input device.
>
> Signed-off-by: Aniroop Mathur <aniroop.mathur@gmail.com>
> ---
>  drivers/input/input.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/input/input.c b/drivers/input/input.c
> index 29ca0bb..01fe49e 100644
> --- a/drivers/input/input.c
> +++ b/drivers/input/input.c
> @@ -1774,7 +1774,7 @@ EXPORT_SYMBOL_GPL(input_class);
>   */
>  struct input_dev *input_allocate_device(void)
>  {
> -       static atomic_t input_no = ATOMIC_INIT(0);
> +       static atomic_t input_no = ATOMIC_INIT(-1);
>         struct input_dev *dev;
>
>         dev = kzalloc(sizeof(struct input_dev), GFP_KERNEL);
> @@ -1789,7 +1789,7 @@ struct input_dev *input_allocate_device(void)
>                 INIT_LIST_HEAD(&dev->node);
>
>                 dev_set_name(&dev->dev, "input%ld",
> -                            (unsigned long) atomic_inc_return(&input_no) - 1);
> +                            (unsigned long) atomic_inc_return(&input_no));
>
>                 __module_get(THIS_MODULE);
>         }
> --
> 1.9.1

^ permalink raw reply	[flat|nested] 8+ messages in thread
* Re: [PATCH] Input: Initialize input_no by -1
  2014-11-21 18:48 Aniroop Mathur
  2014-11-24  3:20 ` Aniroop Mathur
@ 2014-11-25  8:40 ` Dmitry Torokhov
  1 sibling, 0 replies; 8+ messages in thread
From: Dmitry Torokhov @ 2014-11-25  8:40 UTC (permalink / raw)
  To: Aniroop Mathur; +Cc: linux-input@vger.kernel.org

Hi Aniroop,

On Sat, Nov 22, 2014 at 12:18:39AM +0530, Aniroop Mathur wrote:
> This patch initializes input_no by -1 in order to avoid extra subtraction
> operation performed everytime for allocation of an input device.
> 
> Signed-off-by: Aniroop Mathur <aniroop.mathur@gmail.com>

It looks like you rmail client converted all tabs to spaces so the patch
can't be applied as is. Could you please fix and resend.

Thanks.

> ---
>  drivers/input/input.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/input/input.c b/drivers/input/input.c
> index 29ca0bb..01fe49e 100644
> --- a/drivers/input/input.c
> +++ b/drivers/input/input.c
> @@ -1774,7 +1774,7 @@ EXPORT_SYMBOL_GPL(input_class);
>   */
>  struct input_dev *input_allocate_device(void)
>  {
> -       static atomic_t input_no = ATOMIC_INIT(0);
> +       static atomic_t input_no = ATOMIC_INIT(-1);
>         struct input_dev *dev;
> 
>         dev = kzalloc(sizeof(struct input_dev), GFP_KERNEL);
> @@ -1789,7 +1789,7 @@ struct input_dev *input_allocate_device(void)
>                 INIT_LIST_HEAD(&dev->node);
> 
>                 dev_set_name(&dev->dev, "input%ld",
> -                            (unsigned long) atomic_inc_return(&input_no) - 1);
> +                            (unsigned long) atomic_inc_return(&input_no));
> 
>                 __module_get(THIS_MODULE);
>         }
> -- 
> 1.9.1

-- 
Dmitry

^ permalink raw reply	[flat|nested] 8+ messages in thread
* [PATCH] Input: Initialize input_no by -1
@ 2014-11-25 16:08 Aniroop Mathur
  2014-11-28 16:10 ` Aniroop Mathur
  0 siblings, 1 reply; 8+ messages in thread
From: Aniroop Mathur @ 2014-11-25 16:08 UTC (permalink / raw)
  To: dmitry.torokhov, linux-input; +Cc: aniroop.mathur

This patch initializes input_no by -1 in order to avoid extra subtraction
operation performed everytime for allocation of an input device.

Signed-off-by: Aniroop Mathur <aniroop.mathur@gmail.com>
---
 drivers/input/input.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/input/input.c b/drivers/input/input.c
index 29ca0bb..01fe49e 100644
--- a/drivers/input/input.c
+++ b/drivers/input/input.c
@@ -1774,7 +1774,7 @@ EXPORT_SYMBOL_GPL(input_class);
  */
 struct input_dev *input_allocate_device(void)
 {
-	static atomic_t input_no = ATOMIC_INIT(0);
+	static atomic_t input_no = ATOMIC_INIT(-1);
 	struct input_dev *dev;
 
 	dev = kzalloc(sizeof(struct input_dev), GFP_KERNEL);
@@ -1789,7 +1789,7 @@ struct input_dev *input_allocate_device(void)
 		INIT_LIST_HEAD(&dev->node);
 
 		dev_set_name(&dev->dev, "input%ld",
-			     (unsigned long) atomic_inc_return(&input_no) - 1);
+			     (unsigned long) atomic_inc_return(&input_no));
 
 		__module_get(THIS_MODULE);
 	}
-- 
1.9.1


^ permalink raw reply related	[flat|nested] 8+ messages in thread
* Re: [PATCH] Input: Initialize input_no by -1
  2014-11-25 16:08 [PATCH] Input: " Aniroop Mathur
@ 2014-11-28 16:10 ` Aniroop Mathur
  0 siblings, 0 replies; 8+ messages in thread
From: Aniroop Mathur @ 2014-11-28 16:10 UTC (permalink / raw)
  To: Dmitry Torokhov, linux-input@vger.kernel.org, dtor

Dear Mr. Torokhov and Linux Input Community,
Greetings of the day !!

Kindly update about below patch.
I have corrected the spaces and sent it on Tue, Nov 25, 2014.

Thanks,
Aniroop Mathur

On Tue, Nov 25, 2014 at 9:38 PM, Aniroop Mathur
<aniroop.mathur@gmail.com> wrote:
>
> This patch initializes input_no by -1 in order to avoid extra subtraction
> operation performed everytime for allocation of an input device.
>
> Signed-off-by: Aniroop Mathur <aniroop.mathur@gmail.com>
> ---
>  drivers/input/input.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/input/input.c b/drivers/input/input.c
> index 29ca0bb..01fe49e 100644
> --- a/drivers/input/input.c
> +++ b/drivers/input/input.c
> @@ -1774,7 +1774,7 @@ EXPORT_SYMBOL_GPL(input_class);
>   */
>  struct input_dev *input_allocate_device(void)
>  {
> -       static atomic_t input_no = ATOMIC_INIT(0);
> +       static atomic_t input_no = ATOMIC_INIT(-1);
>         struct input_dev *dev;
>
>         dev = kzalloc(sizeof(struct input_dev), GFP_KERNEL);
> @@ -1789,7 +1789,7 @@ struct input_dev *input_allocate_device(void)
>                 INIT_LIST_HEAD(&dev->node);
>
>                 dev_set_name(&dev->dev, "input%ld",
> -                            (unsigned long) atomic_inc_return(&input_no) - 1);
> +                            (unsigned long) atomic_inc_return(&input_no));
>
>                 __module_get(THIS_MODULE);
>         }
> --
> 1.9.1
>

^ permalink raw reply	[flat|nested] 8+ messages in thread
* [PATCH] Input : Initialize input_no by -1
@ 2014-12-02 16:45 Aniroop Mathur
  2014-12-02 23:29 ` Dmitry Torokhov
  0 siblings, 1 reply; 8+ messages in thread
From: Aniroop Mathur @ 2014-12-02 16:45 UTC (permalink / raw)
  To: dmitry.torokhov, dtor, linux-input; +Cc: aniroop.mathur, a.mathur

This patch initializes input_no by -1 in order to avoid extra subtraction
operation performed everytime for allocation of an input device.

Signed-off-by: Aniroop Mathur <aniroop.mathur@gmail.com>
---
 drivers/input/input.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/input/input.c b/drivers/input/input.c
index 29ca0bb..01fe49e 100644
--- a/drivers/input/input.c
+++ b/drivers/input/input.c
@@ -1774,7 +1774,7 @@ EXPORT_SYMBOL_GPL(input_class);
  */
 struct input_dev *input_allocate_device(void)
 {
-	static atomic_t input_no = ATOMIC_INIT(0);
+	static atomic_t input_no = ATOMIC_INIT(-1);
 	struct input_dev *dev;
 
 	dev = kzalloc(sizeof(struct input_dev), GFP_KERNEL);
@@ -1789,7 +1789,7 @@ struct input_dev *input_allocate_device(void)
 		INIT_LIST_HEAD(&dev->node);
 
 		dev_set_name(&dev->dev, "input%ld",
-			     (unsigned long) atomic_inc_return(&input_no) - 1);
+			     (unsigned long) atomic_inc_return(&input_no));
 
 		__module_get(THIS_MODULE);
 	}
-- 
1.9.1


^ permalink raw reply related	[flat|nested] 8+ messages in thread
* Re: [PATCH] Input : Initialize input_no by -1
  2014-12-02 16:45 [PATCH] Input : Initialize input_no by -1 Aniroop Mathur
@ 2014-12-02 23:29 ` Dmitry Torokhov
  2014-12-03  5:57   ` Dmitry Torokhov
  0 siblings, 1 reply; 8+ messages in thread
From: Dmitry Torokhov @ 2014-12-02 23:29 UTC (permalink / raw)
  To: Aniroop Mathur; +Cc: linux-input, a.mathur

On Tue, Dec 02, 2014 at 10:15:29PM +0530, Aniroop Mathur wrote:
> This patch initializes input_no by -1 in order to avoid extra subtraction
> operation performed everytime for allocation of an input device.
> 
> Signed-off-by: Aniroop Mathur <aniroop.mathur@gmail.com>

Applied, thank you.

By the way, we have a few more places in drivers/input that count from 0, we
may want to change them as well.

> ---
>  drivers/input/input.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/input/input.c b/drivers/input/input.c
> index 29ca0bb..01fe49e 100644
> --- a/drivers/input/input.c
> +++ b/drivers/input/input.c
> @@ -1774,7 +1774,7 @@ EXPORT_SYMBOL_GPL(input_class);
>   */
>  struct input_dev *input_allocate_device(void)
>  {
> -	static atomic_t input_no = ATOMIC_INIT(0);
> +	static atomic_t input_no = ATOMIC_INIT(-1);
>  	struct input_dev *dev;
>  
>  	dev = kzalloc(sizeof(struct input_dev), GFP_KERNEL);
> @@ -1789,7 +1789,7 @@ struct input_dev *input_allocate_device(void)
>  		INIT_LIST_HEAD(&dev->node);
>  
>  		dev_set_name(&dev->dev, "input%ld",
> -			     (unsigned long) atomic_inc_return(&input_no) - 1);
> +			     (unsigned long) atomic_inc_return(&input_no));
>  
>  		__module_get(THIS_MODULE);
>  	}
> -- 
> 1.9.1
> 

Thanks.

-- 
Dmitry

^ permalink raw reply	[flat|nested] 8+ messages in thread
* Re: [PATCH] Input : Initialize input_no by -1
  2014-12-02 23:29 ` Dmitry Torokhov
@ 2014-12-03  5:57   ` Dmitry Torokhov
  0 siblings, 0 replies; 8+ messages in thread
From: Dmitry Torokhov @ 2014-12-03  5:57 UTC (permalink / raw)
  To: Aniroop Mathur; +Cc: linux-input, a.mathur

On Tue, Dec 02, 2014 at 03:29:23PM -0800, Dmitry Torokhov wrote:
> On Tue, Dec 02, 2014 at 10:15:29PM +0530, Aniroop Mathur wrote:
> > This patch initializes input_no by -1 in order to avoid extra subtraction
> > operation performed everytime for allocation of an input device.
> > 
> > Signed-off-by: Aniroop Mathur <aniroop.mathur@gmail.com>
> 
> Applied, thank you.
> 
> By the way, we have a few more places in drivers/input that count from 0, we
> may want to change them as well.

Also, for patches of such nature (non urgent) there is no need to ping me so
often.

Thanks.

> 
> > ---
> >  drivers/input/input.c | 4 ++--
> >  1 file changed, 2 insertions(+), 2 deletions(-)
> > 
> > diff --git a/drivers/input/input.c b/drivers/input/input.c
> > index 29ca0bb..01fe49e 100644
> > --- a/drivers/input/input.c
> > +++ b/drivers/input/input.c
> > @@ -1774,7 +1774,7 @@ EXPORT_SYMBOL_GPL(input_class);
> >   */
> >  struct input_dev *input_allocate_device(void)
> >  {
> > -	static atomic_t input_no = ATOMIC_INIT(0);
> > +	static atomic_t input_no = ATOMIC_INIT(-1);
> >  	struct input_dev *dev;
> >  
> >  	dev = kzalloc(sizeof(struct input_dev), GFP_KERNEL);
> > @@ -1789,7 +1789,7 @@ struct input_dev *input_allocate_device(void)
> >  		INIT_LIST_HEAD(&dev->node);
> >  
> >  		dev_set_name(&dev->dev, "input%ld",
> > -			     (unsigned long) atomic_inc_return(&input_no) - 1);
> > +			     (unsigned long) atomic_inc_return(&input_no));
> >  
> >  		__module_get(THIS_MODULE);
> >  	}
> > -- 
> > 1.9.1
> > 
> 
> Thanks.
> 
> -- 
> Dmitry

-- 
Dmitry

^ permalink raw reply	[flat|nested] 8+ messages in thread
end of thread, other threads:[~2014-12-03  5:57 UTC | newest]

Thread overview: 8+ messages (download: mbox.gz follow: Atom feed
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2014-12-02 16:45 [PATCH] Input : Initialize input_no by -1 Aniroop Mathur
2014-12-02 23:29 ` Dmitry Torokhov
2014-12-03  5:57   ` Dmitry Torokhov
  -- strict thread matches above, loose matches on Subject: below --
2014-11-25 16:08 [PATCH] Input: " Aniroop Mathur
2014-11-28 16:10 ` Aniroop Mathur
2014-11-21 18:48 Aniroop Mathur
2014-11-24  3:20 ` Aniroop Mathur
2014-11-25  8:40 ` Dmitry Torokhov

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