From: Andy Shevchenko <andy.shevchenko@gmail.com>
To: Leon Romanovsky <leon@kernel.org>,
Sakari Ailus <sakari.ailus@linux.intel.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Peilin Ye <yepeilin.cs@gmail.com>,
Santosh Shilimkar <santosh.shilimkar@oracle.com>,
"David S. Miller" <davem@davemloft.net>,
Jakub Kicinski <kuba@kernel.org>,
Dan Carpenter <dan.carpenter@oracle.com>,
Arnd Bergmann <arnd@arndb.de>,
"linux-kernel-mentees@lists.linuxfoundation.org"
<linux-kernel-mentees@lists.linuxfoundation.org>,
"netdev@vger.kernel.org" <netdev@vger.kernel.org>,
"linux-rdma@vger.kernel.org" <linux-rdma@vger.kernel.org>,
"rds-devel@oss.oracle.com" <rds-devel@oss.oracle.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: [Linux-kernel-mentees] [PATCH net] rds: Prevent kernel-infoleak in rds_notify_queue_get()
Date: Fri, 31 Jul 2020 10:05:04 +0300 [thread overview]
Message-ID: <CAHp75VfZj4L6PJBbWi6wwMF2nucaxGjRLVvi-fTPSWxWvFE0TA@mail.gmail.com> (raw)
In-Reply-To: <20200731070030.GJ75549@unreal>
Sakari, JFYI. I remember during some reviews we have a discussion
about {0} vs {} and surprisingly they are not an equivalent.
On Fri, Jul 31, 2020 at 10:00 AM Leon Romanovsky <leon@kernel.org> wrote:
> On Fri, Jul 31, 2020 at 09:29:27AM +0300, Andy Shevchenko wrote:
> > On Friday, July 31, 2020, Greg Kroah-Hartman <gregkh@linuxfoundation.org>
> > wrote:
> > > On Fri, Jul 31, 2020 at 07:33:06AM +0200, Greg Kroah-Hartman wrote:
> > > > On Fri, Jul 31, 2020 at 07:53:01AM +0300, Leon Romanovsky wrote:
> > > > > On Thu, Jul 30, 2020 at 03:20:26PM -0400, Peilin Ye wrote:
...
> > > > > Of course, this is the difference between "{ 0 }" and "{}"
> > > initializations.
> > > >
> > > > Really? Neither will handle structures with holes in it, try it and
> > > > see.
> >
> >
> > {} is a GCC extension, but I never thought it works differently.
>
> Yes, this is GCC extension and kernel relies on them very heavily.
I guess simple people who contribute to the kernel just haven't
realized (yet) that it's an extension and that's why we have plenty of
{} and {0} in the kernel.
> > > And if true, where in the C spec does it say that?
--
With Best Regards,
Andy Shevchenko
next prev parent reply other threads:[~2020-07-31 7:05 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-30 19:20 [Linux-kernel-mentees] [PATCH net] rds: Prevent kernel-infoleak in rds_notify_queue_get() Peilin Ye
2020-07-30 19:29 ` santosh.shilimkar
2020-07-31 4:53 ` Leon Romanovsky
2020-07-31 5:33 ` Greg Kroah-Hartman
2020-07-31 5:33 ` Greg Kroah-Hartman
[not found] ` <CAHp75Vdr2HC_ogNhBCxxGut9=Z6pQMFiA0w-268OQv+5unYOTg@mail.gmail.com>
2020-07-31 7:00 ` Leon Romanovsky
2020-07-31 7:05 ` Andy Shevchenko [this message]
2020-07-31 14:04 ` Jason Gunthorpe
2020-07-31 14:21 ` Greg Kroah-Hartman
2020-07-31 14:36 ` Jason Gunthorpe
2020-07-31 17:19 ` Greg Kroah-Hartman
2020-07-31 18:27 ` Jason Gunthorpe
2020-08-01 8:00 ` Dan Carpenter
2020-08-01 14:40 ` Jason Gunthorpe
2020-08-03 9:34 ` Dan Carpenter
2020-08-01 5:38 ` Leon Romanovsky
2020-08-02 22:10 ` Jason Gunthorpe
2020-08-02 22:23 ` Joe Perches
2020-08-02 22:28 ` Jason Gunthorpe
2020-08-02 22:45 ` Joe Perches
2020-08-03 4:58 ` Leon Romanovsky
2020-08-03 23:06 ` Jason Gunthorpe
2020-08-08 22:57 ` Jack Leadford
2020-08-09 7:04 ` Leon Romanovsky
2020-08-14 17:07 ` Jason Gunthorpe
2020-07-31 9:59 ` Dan Carpenter
2020-07-31 11:14 ` Håkon Bugge
2020-07-31 11:59 ` Greg Kroah-Hartman
2020-07-31 12:03 ` Håkon Bugge
2020-07-31 23:54 ` David Miller
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