linux-kernel - Re: [PATCH 2/6] macio: Make remove callback of macio driver void returned

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Message-ID: <Y44XgS8nHgcJjQCL@kroah.com>
Date:   Mon, 5 Dec 2022 17:08:33 +0100
From:   Greg KH <gregkh@...uxfoundation.org>
To:     Dawei Li <set_pte_at@...look.com>
Cc:     johannes@...solutions.net, robert.jarzmik@...e.fr, jgross@...e.com,
        sstabellini@...nel.org, oleksandr_tyshchenko@...m.com,
        roger.pau@...rix.com, srinivas.kandagatla@...aro.org,
        bgoswami@...cinc.com, mpe@...erman.id.au, npiggin@...il.com,
        christophe.leroy@...roup.eu, kys@...rosoft.com,
        haiyangz@...rosoft.com, wei.liu@...nel.org, decui@...rosoft.com,
        alsa-devel@...a-project.org, linuxppc-dev@...ts.ozlabs.org,
        xen-devel@...ts.xenproject.org, linux-hyperv@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/6] macio: Make remove callback of macio driver void
 returned

On Mon, Dec 05, 2022 at 11:36:40PM +0800, Dawei Li wrote:
> Commit fc7a6209d571 ("bus: Make remove callback return
> void") forces bus_type::remove be void-returned, it doesn't
> make much sense for any bus based driver implementing remove
> callbalk to return non-void to its caller.
> 
> This change is for macio bus based drivers.
> 
> Signed-off-by: Dawei Li <set_pte_at@...look.com>
> ---
>  arch/powerpc/include/asm/macio.h                | 12 ++++++------
>  drivers/ata/pata_macio.c                        |  4 +---
>  drivers/macintosh/rack-meter.c                  |  4 +---
>  drivers/net/ethernet/apple/bmac.c               |  4 +---
>  drivers/net/ethernet/apple/mace.c               |  4 +---
>  drivers/net/wireless/intersil/orinoco/airport.c |  4 +---
>  drivers/scsi/mac53c94.c                         |  5 +----
>  drivers/scsi/mesh.c                             |  5 +----
>  drivers/tty/serial/pmac_zilog.c                 |  7 ++-----
>  sound/aoa/soundbus/i2sbus/core.c                |  4 +---
>  10 files changed, 16 insertions(+), 37 deletions(-)
> 
> diff --git a/arch/powerpc/include/asm/macio.h b/arch/powerpc/include/asm/macio.h
> index ff5fd82d9ff0..f641c730c3b7 100644
> --- a/arch/powerpc/include/asm/macio.h
> +++ b/arch/powerpc/include/asm/macio.h
> @@ -124,15 +124,15 @@ static inline struct pci_dev *macio_get_pci_dev(struct macio_dev *mdev)
>   */
>  struct macio_driver
>  {
> -	int	(*probe)(struct macio_dev* dev, const struct of_device_id *match);
> -	int	(*remove)(struct macio_dev* dev);
> +	int	(*probe)(struct macio_dev *dev, const struct of_device_id *match);
> +	void	(*remove)(struct macio_dev *dev);

Again, you are changing lines you do not need to here.

thanks,

greg k-h