diff mbox series

HID: usbmouse: Avoid GFP_ATOMIC when GFP_KERNEL is possible

Message ID 20210524145743.GA92203@hyeyoo
State Accepted
Commit b15b253c908235bb10bdbc36f7e33ab40758215f
Headers show
Series HID: usbmouse: Avoid GFP_ATOMIC when GFP_KERNEL is possible | expand

Commit Message

Hyeonggon Yoo May 24, 2021, 2:57 p.m. UTC
probe in usb don't need to be atomic. So GFP_KERNEL can be used here,
instead of GFP_ATOMIC.

Signed-off-by: Hyeonggon Yoo <42.hyeyoo@gmail.com>
---
 drivers/hid/usbhid/usbmouse.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Comments

Hyeonggon Yoo May 27, 2021, 4:45 p.m. UTC | #1
On Mon, May 24, 2021 at 11:57:43PM +0900, Hyeonggon Yoo wrote:
> probe in usb don't need to be atomic. So GFP_KERNEL can be used here,
> instead of GFP_ATOMIC.
> 
> Signed-off-by: Hyeonggon Yoo <42.hyeyoo@gmail.com>
> ---
>  drivers/hid/usbhid/usbmouse.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/hid/usbhid/usbmouse.c b/drivers/hid/usbhid/usbmouse.c
> index 073127e65ac1..c89332017d5d 100644
> --- a/drivers/hid/usbhid/usbmouse.c
> +++ b/drivers/hid/usbhid/usbmouse.c
> @@ -130,7 +130,7 @@ static int usb_mouse_probe(struct usb_interface *intf, const struct usb_device_i
>  	if (!mouse || !input_dev)
>  		goto fail1;
>  
> -	mouse->data = usb_alloc_coherent(dev, 8, GFP_ATOMIC, &mouse->data_dma);
> +	mouse->data = usb_alloc_coherent(dev, 8, GFP_KERNEL, &mouse->data_dma);
>  	if (!mouse->data)
>  		goto fail1;
>  
> -- 
> 2.25.1
> 

Hello for me it was simple and obvious patch.
Is there something wrong about it?

Then please let me know about it!

Thanks,
Hyeonggon
Greg Kroah-Hartman May 27, 2021, 4:54 p.m. UTC | #2
On Fri, May 28, 2021 at 01:45:17AM +0900, Hyeonggon Yoo wrote:
> On Mon, May 24, 2021 at 11:57:43PM +0900, Hyeonggon Yoo wrote:

> > probe in usb don't need to be atomic. So GFP_KERNEL can be used here,

> > instead of GFP_ATOMIC.

> > 

> > Signed-off-by: Hyeonggon Yoo <42.hyeyoo@gmail.com>

> > ---

> >  drivers/hid/usbhid/usbmouse.c | 2 +-

> >  1 file changed, 1 insertion(+), 1 deletion(-)

> > 

> > diff --git a/drivers/hid/usbhid/usbmouse.c b/drivers/hid/usbhid/usbmouse.c

> > index 073127e65ac1..c89332017d5d 100644

> > --- a/drivers/hid/usbhid/usbmouse.c

> > +++ b/drivers/hid/usbhid/usbmouse.c

> > @@ -130,7 +130,7 @@ static int usb_mouse_probe(struct usb_interface *intf, const struct usb_device_i

> >  	if (!mouse || !input_dev)

> >  		goto fail1;

> >  

> > -	mouse->data = usb_alloc_coherent(dev, 8, GFP_ATOMIC, &mouse->data_dma);

> > +	mouse->data = usb_alloc_coherent(dev, 8, GFP_KERNEL, &mouse->data_dma);

> >  	if (!mouse->data)

> >  		goto fail1;

> >  

> > -- 

> > 2.25.1

> > 

> 

> Hello for me it was simple and obvious patch.

> Is there something wrong about it?


It has been only 4 days.  For a non-bugfix and for something that is
only a "cleanup" change, give it at least 2 weeks please.

Relax, there is no rush for stuff like this.

thanks,

greg k-h
Hyeonggon Yoo May 27, 2021, 5:05 p.m. UTC | #3
On Thu, May 27, 2021 at 06:54:07PM +0200, Greg KH wrote:
> It has been only 4 days.  For a non-bugfix and for something that is

> only a "cleanup" change, give it at least 2 weeks please.

> 

> Relax, there is no rush for stuff like this.


Hello Greg!

Okay You are right. I'll relax...

I think I need to be familiar with the process :)

Thank you!
Hyeonggon
Greg Kroah-Hartman May 27, 2021, 5:11 p.m. UTC | #4
On Fri, May 28, 2021 at 02:05:36AM +0900, Hyeonggon Yoo wrote:
> On Thu, May 27, 2021 at 06:54:07PM +0200, Greg KH wrote:

> > It has been only 4 days.  For a non-bugfix and for something that is

> > only a "cleanup" change, give it at least 2 weeks please.

> > 

> > Relax, there is no rush for stuff like this.

> 

> Hello Greg!

> 

> Okay You are right. I'll relax...

> 

> I think I need to be familiar with the process :)


Please go read Documentation/process/ for all of that while you wait :)
Hyeonggon Yoo May 28, 2021, 8:54 p.m. UTC | #5
On Thu, May 27, 2021 at 07:11:24PM +0200, Greg KH wrote:
> On Fri, May 28, 2021 at 02:05:36AM +0900, Hyeonggon Yoo wrote:

> > On Thu, May 27, 2021 at 06:54:07PM +0200, Greg KH wrote:

> > > It has been only 4 days.  For a non-bugfix and for something that is

> > > only a "cleanup" change, give it at least 2 weeks please.

> > > 

> > > Relax, there is no rush for stuff like this.

> > 

> > Hello Greg!

> > 

> > Okay You are right. I'll relax...

> > 

> > I think I need to be familiar with the process :)

> 

> Please go read Documentation/process/ for all of that while you wait :)


I'm reading it and Thanks for letting me know it.
it helps a lot... I should read it many times.

and the patch seems already applied to linux-next :)

Thanks,
Hyeonggon
diff mbox series

Patch

diff --git a/drivers/hid/usbhid/usbmouse.c b/drivers/hid/usbhid/usbmouse.c
index 073127e65ac1..c89332017d5d 100644
--- a/drivers/hid/usbhid/usbmouse.c
+++ b/drivers/hid/usbhid/usbmouse.c
@@ -130,7 +130,7 @@  static int usb_mouse_probe(struct usb_interface *intf, const struct usb_device_i
 	if (!mouse || !input_dev)
 		goto fail1;
 
-	mouse->data = usb_alloc_coherent(dev, 8, GFP_ATOMIC, &mouse->data_dma);
+	mouse->data = usb_alloc_coherent(dev, 8, GFP_KERNEL, &mouse->data_dma);
 	if (!mouse->data)
 		goto fail1;