linux-kernel - Re: [PATCH -next] vfio/fsl-mc: use module_fsl_mc

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Date:   Fri, 11 Aug 2023 09:18:14 -0600
From:   Alex Williamson <alex.williamson@...hat.com>
To:     Yang Yingliang <yangyingliang@...wei.com>
Cc:     <linux-kernel@...r.kernel.org>, <kvm@...r.kernel.org>,
        <diana.craciun@....nxp.com>
Subject: Re: [PATCH -next] vfio/fsl-mc: use module_fsl_mc_driver() macro

On Fri, 11 Aug 2023 17:29:11 +0800
Yang Yingliang <yangyingliang@...wei.com> wrote:

> The driver init/exit() function don't do anything special, it
> can use the module_fsl_mc_driver() macro to eliminate boilerplate
> code.
> 
> Signed-off-by: Yang Yingliang <yangyingliang@...wei.com>
> ---
>  drivers/vfio/fsl-mc/vfio_fsl_mc.c | 14 +-------------
>  1 file changed, 1 insertion(+), 13 deletions(-)

Your colleague submitted a nearly identical patch, but also removing
the redundant module owner, 2 days ago:

https://lore.kernel.org/all/20230809131536.4021639-1-lizetao1@huawei.com/

Thanks,
Alex

> 
> diff --git a/drivers/vfio/fsl-mc/vfio_fsl_mc.c b/drivers/vfio/fsl-mc/vfio_fsl_mc.c
> index f2140e94d41e..8053f13c2be5 100644
> --- a/drivers/vfio/fsl-mc/vfio_fsl_mc.c
> +++ b/drivers/vfio/fsl-mc/vfio_fsl_mc.c
> @@ -604,19 +604,7 @@ static struct fsl_mc_driver vfio_fsl_mc_driver = {
>  	},
>  	.driver_managed_dma = true,
>  };
> -
> -static int __init vfio_fsl_mc_driver_init(void)
> -{
> -	return fsl_mc_driver_register(&vfio_fsl_mc_driver);
> -}
> -
> -static void __exit vfio_fsl_mc_driver_exit(void)
> -{
> -	fsl_mc_driver_unregister(&vfio_fsl_mc_driver);
> -}
> -
> -module_init(vfio_fsl_mc_driver_init);
> -module_exit(vfio_fsl_mc_driver_exit);
> +module_fsl_mc_driver(vfio_fsl_mc_driver);
>  
>  MODULE_LICENSE("Dual BSD/GPL");
>  MODULE_DESCRIPTION("VFIO for FSL-MC devices - User Level meta-driver");