On Wed, May 15, 2013 at 02:47:53PM +0930, Rusty Russell wrote:

Asias He [off-list ref] writes:

quoted

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