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From: "Michael S. Tsirkin" <mst@redhat.com>
To: Thiago Farina <tfransosi@gmail.com>
Cc: virtualization@lists.linux-foundation.org, kvm@vger.kernel.org,
	rusty@rustcorp.com.au, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 2/2] tools/virtio: virtio_test tool
Date: Mon, 13 Dec 2010 18:58:28 +0200	[thread overview]
Message-ID: <20101213165828.GA7182@redhat.com> (raw)
In-Reply-To: <AANLkTinSia0yt3xmNusXezVsmembv9NKoymN+rrBn_pY@mail.gmail.com>

On Mon, Dec 06, 2010 at 02:37:05PM -0200, Thiago Farina wrote:
> On Mon, Nov 29, 2010 at 3:16 PM, Michael S. Tsirkin <mst@redhat.com> wrote:
> > +#define container_of(ptr, type, member) ({                     \
> > +       const typeof( ((type *)0)->member ) *__mptr = (ptr);    \
> > +       (type *)( (char *)__mptr - offsetof(type,member) );})
> > +
> > +#define uninitialized_var(x) x = x
> > +
> > +# ifndef likely
> > +#  define likely(x)    (__builtin_expect(!!(x), 1))
> > +# endif
> > +# ifndef unlikely
> > +#  define unlikely(x)  (__builtin_expect(!!(x), 0))
> > +# endif
> 
> It seems you are not using these macros. Do you really need them here?

They are used by virtio that I'm compiling in userspace here.

> Can't you include the right linux header files for these macros
> instead?

Far from trivial as linux headers aren't intended to
be built in userspace, if you try you get all kind of
conflicts with libc headers etc.

If you see a way to do this, pls send me a patch.

-- 
MST

  reply	other threads:[~2010-12-13 16:59 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-11-29 17:04 [PATCH 0/2] tools/virtio: virtio_ring testing tool Michael S. Tsirkin
2010-11-29 17:09 ` [PATCH 1/2] vhost test module Michael S. Tsirkin
2010-12-02 19:00   ` Paul E. McKenney
2010-12-02 19:11     ` Michael S. Tsirkin
2010-12-02 19:26       ` Paul E. McKenney
2010-12-02 19:47         ` Michael S. Tsirkin
2010-12-02 23:13           ` Paul E. McKenney
2010-12-02 23:18             ` Michael S. Tsirkin
2010-12-02 23:56               ` Paul E. McKenney
2010-12-04 18:03                 ` Paul E. McKenney
2010-11-29 17:16 ` [PATCH 2/2] tools/virtio: virtio_test tool Michael S. Tsirkin
2010-12-06  4:53   ` Rusty Russell
2010-12-13 17:14     ` Michael S. Tsirkin
2010-12-06 16:37   ` Thiago Farina
2010-12-13 16:58     ` Michael S. Tsirkin [this message]
2011-09-07  3:34   ` Zhi Yong Wu

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