From: Dan Carpenter <dan.carpenter@oracle.com>
To: "libaokun (A)" <libaokun1@huawei.com>
Cc: Namjae Jeon <namjae.jeon@samsung.com>,
Sergey Senozhatsky <sergey.senozhatsky@gmail.com>,
Steve French <sfrench@samba.org>,
Hyunchul Lee <hyc.lee@gmail.com>,
linux-cifs@vger.kernel.org,
linux-cifsd-devel@lists.sourceforge.net,
kernel-janitors@vger.kernel.org, Hulk Robot <hulkci@huawei.com>
Subject: Re: [PATCH -next] cifsd: fix WARNING: convert list_for_each to entry variant in smb2pdu.c
Date: Fri, 18 Jun 2021 08:14:00 +0300 [thread overview]
Message-ID: <20210618051400.GG1861@kadam> (raw)
In-Reply-To: <fa589904-ac16-fb97-bb7a-df081954d363@huawei.com>
On Fri, Jun 18, 2021 at 09:44:37AM +0800, libaokun (A) wrote:
> I don't know what the difference is between
>
> list_for_each_entry() and list_for_each() for 'struct channel *chann',
>
> but I don't think there's any difference here.
Correct. There is no difference, but Coccinelle is smart enough to
parse list_for_each_entry() and it's not smart enough to parse
list_for_each().
>
> Would you give me more detial about this, please?
There is a Coccinelle script scripts/coccinelle/iterators/itnull.cocci
which will complain about the NULL check in the new code so this patch
will introduce a new warning. We may as well remove the unnecessary
NULL check and avoid the warning.
regards,
dan carpenter
next prev parent reply other threads:[~2021-06-18 5:15 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-06-17 6:46 [PATCH -next] cifsd: fix WARNING: convert list_for_each to entry variant in smb2pdu.c Baokun Li
2021-06-17 9:26 ` Dan Carpenter
2021-06-18 1:44 ` libaokun (A)
2021-06-18 5:14 ` Dan Carpenter [this message]
2021-06-18 7:47 ` libaokun (A)
2021-06-18 8:19 ` Dan Carpenter
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