From: Dan Carpenter <dan.carpenter@oracle.com>
To: Chen Gang <gang.chen.5i5j@gmail.com>
Cc: James Hogan <james.hogan@imgtec.com>,
devel@driverdev.osuosl.org, andreas.dilger@intel.com,
Antonio Quartulli <antonio@meshcoding.com>,
Greg KH <gregkh@linuxfoundation.org>,
bergwolf@gmail.com,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
David Miller <davem@davemloft.net>,
oleg.drokin@intel.com, jacques-charles.lafoucriere@cea.fr,
jinshan.xiong@intel.com, netdev <netdev@vger.kernel.org>,
linux-metag@vger.kernel.org
Subject: Re: [PATCH] drivers: staging: lustre: lustre: include: add "__attribute__((packed))" for the related union
Date: Mon, 3 Feb 2014 11:58:55 +0300 [thread overview]
Message-ID: <20140203085855.GA26722@mwanda> (raw)
In-Reply-To: <52ECFD53.7010401@gmail.com>
On Sat, Feb 01, 2014 at 09:57:39PM +0800, Chen Gang wrote:
> It seems, our kernel still stick to treate 'pack' region have effect
> with both 'align' and 'sizeof'.
>
It's not about packed regions. It's about unions. It's saying the
sizeof() a union is a multiple of 4 unless it's packed.
union foo {
short x;
short y;
};
The author intended the sizeof(union foo) to be 2 but on metag arch then
it is 4.
regards,
dan carpenter
next prev parent reply other threads:[~2014-02-03 8:59 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-01-18 9:50 [PATCH] drivers: staging: lustre: lustre: include: add "__attribute__((packed))" for the related union Chen Gang
2014-01-18 10:05 ` Dan Carpenter
2014-01-18 10:26 ` Chen Gang
2014-01-18 14:24 ` Dan Carpenter
2014-01-19 10:07 ` Chen Gang
2014-01-20 11:56 ` James Hogan
2014-01-20 12:30 ` Dan Carpenter
2014-01-20 12:37 ` James Hogan
2014-01-20 12:56 ` Dan Carpenter
2014-01-20 13:01 ` Dan Carpenter
2014-01-20 13:38 ` James Hogan
2014-01-20 21:13 ` Dan Carpenter
2014-01-21 10:36 ` James Hogan
2014-01-25 11:55 ` Chen Gang
2014-02-01 13:57 ` Chen Gang
2014-02-03 8:58 ` Dan Carpenter [this message]
2014-02-03 10:03 ` Chen Gang
2014-02-03 11:35 ` Chen Gang
2014-02-03 10:05 ` David Laight
2014-02-03 10:22 ` James Hogan
2014-02-03 10:30 ` Chen Gang
2014-02-03 10:35 ` David Laight
2014-02-03 11:02 ` James Hogan
2014-02-03 11:54 ` David Laight
2014-02-03 10:25 ` Chen Gang
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20140203085855.GA26722@mwanda \
--to=dan.carpenter@oracle.com \
--cc=andreas.dilger@intel.com \
--cc=antonio@meshcoding.com \
--cc=bergwolf@gmail.com \
--cc=davem@davemloft.net \
--cc=devel@driverdev.osuosl.org \
--cc=gang.chen.5i5j@gmail.com \
--cc=gregkh@linuxfoundation.org \
--cc=jacques-charles.lafoucriere@cea.fr \
--cc=james.hogan@imgtec.com \
--cc=jinshan.xiong@intel.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-metag@vger.kernel.org \
--cc=netdev@vger.kernel.org \
--cc=oleg.drokin@intel.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox