linux-kernel - Re: s390/pkey: Use memdup_user() rather than duplicating its implementation

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Message-Id: <a4eaf80e-a5dd-4da3-75ca-8231f01af193@de.ibm.com>
Date:   Wed, 6 Nov 2019 19:30:19 +0100
From:   Christian Borntraeger <borntraeger@...ibm.com>
To:     Markus Elfring <Markus.Elfring@....de>,
        Joe Perches <joe@...ches.com>, linux-s390@...r.kernel.org,
        kernel-janitors@...r.kernel.org
Cc:     Harald Freudenberger <freude@...ux.ibm.com>,
        Heiko Carstens <heiko.carstens@...ibm.com>,
        Ingo Franzki <ifranzki@...ux.ibm.com>,
        Vasily Gorbik <gor@...ux.ibm.com>,
        LKML <linux-kernel@...r.kernel.org>
Subject: Re: s390/pkey: Use memdup_user() rather than duplicating its
 implementation



On 06.11.19 14:00, Markus Elfring wrote:
>>> Reuse existing functionality from memdup_user() instead of keeping
>>> duplicate source code.
>>>
>>> Generated by: scripts/coccinelle/api/memdup_user.cocci
> …
>>> Fixes: f2bbc96e7cfad3891b7bf9bd3e566b9b7ab4553d ("s390/pkey: add CCA AES cipher key support")
>>
>> This doesn't fix anything
> 
> How would you categorise the proposed source code reduction and software reuse?

Cleanup.

Can you please stop arguing about review feedback that is clearly right? This is not fixing 
anything. The Fixes tag is used to decide if something needs a backport. And every backport has 
a chance for a regression. So adding a Fixes tag to something that is not fixing a bug is actually
hurting.