linux-kernel - Re: [PATCH v10 03/11] drm/etnaviv: Add dedicated functions to create and destroy platform device

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Date:   Wed, 21 Jun 2023 22:03:14 +0800
From:   Sui Jingfeng <suijingfeng@...ngson.cn>
To:     Lucas Stach <l.stach@...gutronix.de>,
        Sui Jingfeng <18949883232@....com>,
        Russell King <linux+etnaviv@...linux.org.uk>,
        Christian Gmeiner <christian.gmeiner@...il.com>,
        David Airlie <airlied@...il.com>,
        Daniel Vetter <daniel@...ll.ch>
Cc:     Bjorn Helgaas <bhelgaas@...gle.com>,
        Philipp Zabel <p.zabel@...gutronix.de>,
        linux-kernel@...r.kernel.org, dri-devel@...ts.freedesktop.org,
        etnaviv@...ts.freedesktop.org
Subject: Re: [PATCH v10 03/11] drm/etnaviv: Add dedicated functions to create
 and destroy platform device

Hi,

On 2023/6/21 18:23, Lucas Stach wrote:
> That's right, but all you do with those indirections through the
> parameter list is move which of the functions is non-pure, in your case
> it's etnaviv_init/etnaviv_exit,

But there is a difference,  etnaviv_init() and etnaviv_exit() is 
impossible to be shared

there are only get called once when the module is loaded.

They can never be reused anymore, except here.

And etnaviv_init() and etnaviv_exit() don't have a choice.


But for etnaviv_create_platform_device() function,

there is a possibility to be reused in the future.


> with the indirection dropped it's
> etnaviv_create_platform_device/etnaviv_destroy_platform_device.

-- 
Jingfeng