From: Asias He <asias@redhat.com>
To: Rusty Russell <rusty@rustcorp.com.au>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>,
kvm@vger.kernel.org, "Michael S. Tsirkin" <mst@redhat.com>,
netdev@vger.kernel.org, Randy Dunlap <rdunlap@infradead.org>,
linux-kernel@vger.kernel.org,
virtualization@lists.linux-foundation.org,
target-devel@vger.kernel.org, linux-next@vger.kernel.org
Subject: Re: [PATCH] vhost-scsi: Depend on NET for memcpy_fromiovec
Date: Thu, 16 May 2013 10:08:48 +0800 [thread overview]
Message-ID: <20130516020848.GB23441@hj.localdomain> (raw)
In-Reply-To: <8761yk254u.fsf@rustcorp.com.au>
On Wed, May 15, 2013 at 02:47:53PM +0930, Rusty Russell wrote:
> Asias He <asias@redhat.com> writes:
> > scsi.c includes vhost.c which uses memcpy_fromiovec.
> >
> > This patch fixes this build failure.
> >
> > From Randy Dunlap:
> > '''
> > on x86_64:
> >
> > ERROR: "memcpy_fromiovec" [drivers/vhost/vhost_scsi.ko] undefined!
> >
> > It needs to depend on NET since net/core/ provides that function.
> > '''
>
> Proper fix please.
--verbose please ;-)
Making VHOST_SCSI depends on NET looks weird but this is because vhost
core depends on it. A bunch of patches are cleaning this up. Since MST
wanted do the vhost.ko split up in 3.11, plus your WIP vringh work, so I
wanted the fix for 3.10 as minimum as possible.
Other users are using memcpy_fromiovec and friends outside net. It seems
a good idea to put it in a util library. e.g. crypto/algif_skcipher.c
which also depends on NET for it.
> Though I can't see why you thought this was a good idea. Nonetheless, I
> shan't highlight why: I have far too much respect for your intellects
> and abilities.
>
> No, don't thank me!
Interesting.
> Rusty.
--
Asias
next prev parent reply other threads:[~2013-05-16 2:08 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-05-14 4:17 linux-next: Tree for May 14 Stephen Rothwell
2013-05-14 19:16 ` linux-next: Tree for May 14 (vhost_scsi) Randy Dunlap
2013-05-14 23:55 ` Stephen Rothwell
2013-05-15 0:59 ` [PATCH] vhost-scsi: Depend on NET for memcpy_fromiovec Asias He
2013-05-15 3:10 ` Nicholas A. Bellinger
2013-05-15 3:44 ` Asias He
2013-05-15 5:17 ` Rusty Russell
2013-05-15 22:37 ` Nicholas A. Bellinger
2013-05-15 23:35 ` Rusty Russell
2013-05-16 2:16 ` Asias He
2013-05-16 3:10 ` David Miller
2013-05-16 6:46 ` Michael S. Tsirkin
2013-05-16 9:10 ` David Miller
2013-05-16 1:48 ` Asias He
2013-05-16 6:42 ` Michael S. Tsirkin
2013-05-16 2:08 ` Asias He [this message]
2013-05-16 3:34 ` Rusty Russell
2013-05-16 3:55 ` Joe Perches
2013-05-16 23:42 ` Rusty Russell
2013-05-17 4:42 ` Randy Dunlap
2013-05-23 7:30 ` Michael S. Tsirkin
2013-05-16 4:35 ` Asias He
2013-05-16 6:36 ` Michael S. Tsirkin
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