Re: [PATCH v2 2/4] eventfd: simplify eventfd_signal()

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On Wed, Nov 22, 2023 at 01:48:23PM +0100, Christian Brauner wrote:
> Ever since the evenfd type was introduced back in 2007 in commit
> e1ad7468c77d ("signal/timer/event: eventfd core") the eventfd_signal()
> function only ever passed 1 as a value for @n. There's no point in
> keeping that additional argument.
> 
> Signed-off-by: Christian Brauner <brauner@xxxxxxxxxx>
> ---
>  arch/x86/kvm/hyperv.c                     |  2 +-
>  arch/x86/kvm/xen.c                        |  2 +-
>  drivers/accel/habanalabs/common/device.c  |  2 +-
>  drivers/fpga/dfl.c                        |  2 +-
>  drivers/gpu/drm/drm_syncobj.c             |  6 +++---
>  drivers/gpu/drm/i915/gvt/interrupt.c      |  2 +-
>  drivers/infiniband/hw/mlx5/devx.c         |  2 +-
>  drivers/misc/ocxl/file.c                  |  2 +-
>  drivers/s390/cio/vfio_ccw_chp.c           |  2 +-
>  drivers/s390/cio/vfio_ccw_drv.c           |  4 ++--
>  drivers/s390/cio/vfio_ccw_ops.c           |  6 +++---
>  drivers/s390/crypto/vfio_ap_ops.c         |  2 +-
>  drivers/usb/gadget/function/f_fs.c        |  4 ++--
>  drivers/vdpa/vdpa_user/vduse_dev.c        |  6 +++---
>  drivers/vfio/fsl-mc/vfio_fsl_mc_intr.c    |  2 +-
>  drivers/vfio/pci/vfio_pci_core.c          |  6 +++---
>  drivers/vfio/pci/vfio_pci_intrs.c         | 12 ++++++------
>  drivers/vfio/platform/vfio_platform_irq.c |  4 ++--
>  drivers/vhost/vdpa.c                      |  4 ++--
>  drivers/vhost/vhost.c                     | 10 +++++-----
>  drivers/vhost/vhost.h                     |  2 +-
>  drivers/virt/acrn/ioeventfd.c             |  2 +-
>  drivers/xen/privcmd.c                     |  2 +-
>  fs/aio.c                                  |  2 +-
>  fs/eventfd.c                              |  9 +++------
>  include/linux/eventfd.h                   |  4 ++--
>  mm/memcontrol.c                           | 10 +++++-----
>  mm/vmpressure.c                           |  2 +-
>  samples/vfio-mdev/mtty.c                  |  4 ++--
>  virt/kvm/eventfd.c                        |  4 ++--
>  30 files changed, 60 insertions(+), 63 deletions(-)
> 
> diff --git a/drivers/fpga/dfl.c b/drivers/fpga/dfl.c
> index dd7a783d53b5..e73f88050f08 100644
> --- a/drivers/fpga/dfl.c
> +++ b/drivers/fpga/dfl.c
> @@ -1872,7 +1872,7 @@ static irqreturn_t dfl_irq_handler(int irq, void *arg)
>  {
>  	struct eventfd_ctx *trigger = arg;
>  
> -	eventfd_signal(trigger, 1);
> +	eventfd_signal(trigger);

For FPGA part,

Acked-by: Xu Yilun <yilun.xu@xxxxxxxxx>

>  	return IRQ_HANDLED;
>  }




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