Subject: Re: [PATCH 24/54] md/raid1: Improve another size determination in
 setup_conf()
To: Dan Carpenter <dan.carpenter@oracle.com>
References: <566ABCD9.1060404@users.sourceforge.net>
 <786843ef-4b6f-eb04-7326-2f6f5b408826@users.sourceforge.net>
 <9831fce9-d689-89e4-dec8-50cadcd13fdd@users.sourceforge.net>
 <CAFLxGvx0Fr-WNvKYACdvNiZwYzHW4ocna9HPH8J_WPSXWc+ngg@mail.gmail.com>
 <20161007075345.GB6039@mwanda>
Cc: SF Markus Elfring <elfring@users.sourceforge.net>,
        "linux-raid@vger.kernel.org" <linux-raid@vger.kernel.org>,
        Christoph Hellwig <hch@lst.de>, Guoqing Jiang <gqjiang@suse.com>,
        Jens Axboe <axboe@fb.com>, Mike Christie <mchristi@redhat.com>,
        Neil Brown <neilb@suse.com>, Shaohua Li <shli@kernel.org>,
        Tomasz Majchrzak <tomasz.majchrzak@intel.com>,
        LKML <linux-kernel@vger.kernel.org>,
        "kernel-janitors@vger.kernel.org" <kernel-janitors@vger.kernel.org>,
        Julia Lawall <julia.lawall@lip6.fr>
From: Richard Weinberger <richard@nod.at>
Message-ID: <8352f64b-5d3c-4b13-7650-312300dc8ea3@nod.at>
Date: Fri, 7 Oct 2016 10:15:26 +0200
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On 07.10.2016 09:53, Dan Carpenter wrote:
> On Thu, Oct 06, 2016 at 11:29:20AM +0200, Richard Weinberger wrote:
>> On Thu, Oct 6, 2016 at 11:22 AM, SF Markus Elfring
>> <elfring@users.sourceforge.net> wrote:
>>> From: Markus Elfring <elfring@users.sourceforge.net>
>>> Date: Tue, 4 Oct 2016 21:46:18 +0200
>>>
>>> Replace the specification of a data structure by a pointer dereference
>>> as the parameter for the operator "sizeof" to make the corresponding size
>>> determination a bit safer.
>>
>> Isn't this pure matter of taste?
>> Some developers prefer sizeof(*ptr) because it is easier to type, other
>> developers prefer sizeof(struct foo) because you can determine the type
>> at first sight and makes review more easy.
> 
> sizeof(*ptr) is more future proof and normally more obvious and easier
> to review.

Also a matter of taste.
See http://yarchive.net/comp/linux/struct_init.html

Thanks,
//richard