Re: [PATCH] SCSI: fix the return type of the remove() method in sgiwd93.c

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> On Wed, Dec 3, 2008 at 19:42, Vorobiev Dmitri <dmitri.vorobiev@xxxxxxxxx>
> wrote:
>>> On Wed, 2008-12-03 at 18:52 +0100, Kay Sievers wrote:
>>>> On Wed, Dec 3, 2008 at 18:08, James Bottomley
>>>> <James.Bottomley@xxxxxxxxxxxxxxxxxxxxx> wrote:
>>>> > On Wed, 2008-12-03 at 18:24 +0200, Vorobiev Dmitri wrote:
>>>> >> > This patch fixes the following compilation warning:
>>>> >> >
>>>> >> >   CC [M]  drivers/scsi/sgiwd93.o
>>>> >> > drivers/scsi/sgiwd93.c:314: warning: initialization from
>>>> incompatible
>>>> >> > pointer type
>>>> >>
>>>> >> Any news about this one? I think this patch should go via
>>>> linux-scsi,
>>>> >> unless you would be insisting on pushing it via linux-mips, in
>>>> which
>>>> case
>>>> >> I'll politely bug Ralf about it. :)
>>>> >
>>>> > Looks OK for the local change.
>>>> >
>>>> > Globally, having driver->remove and platform_driver->remove return
>>>> int
>>>> > instead of void looks wrong.  Particularly when the only use cases
>>>> are
>>>> > in drivers/base/ and they all ignore the return code.
>>>> >
>>>> > Greg and Kay ... shouldn't we simply redefine the return values for
>>>> the
>>>> > remove methods in these structures to return void (and thus match
>>>> the
>>>> > use case)?
>>>>
>>>> Aren't there many many drivers across the tree, using the "int remove"
>>>> version?
>>>
>>> Yes ... since it's a function prototype.
>>>
>>> However, if drivers/base simply discards the return, it's a trap we
>>> shouldn't be setting.
>>
>> Hmmm, it does look like the return value is discarded, please see
>> drivers/base/dd.c::__device_release_driver() for details.
>>
>> Does this not deserve a good cleanup?
>
> Sure, it might be. If you want to patch hundreds of files, send
> patches to maintainers, patch drivers you can not even compile, we
> could do that.
>
> We are already in the middle of a ~400 files "struct device" bus_id
> conversion, and only very few maintainers respond to these patches. We
> also never got any reply to the SCSI bus_id patch we sent weeks ago.
> :)
>
> Even when it's "a good cleanup", with maintainers not responding, and
> supporting it, it's a real pain to change things like this. But, if
> you want to go ahead and do that, let us know.

Well, I don't really want to look like a coward, but I guess this a good
project for Kernel Janitors, and I'm Cc:ing their mailing list now.

Dmitri
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