Messages in this thread | | | From | Rusty Russell <> | Subject | Re: [PATCH] vhost-scsi: Depend on NET for memcpy_fromiovec | Date | Thu, 16 May 2013 09:05:38 +0930 |
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"Nicholas A. Bellinger" <nab@linux-iscsi.org> writes: > On Wed, 2013-05-15 at 14:47 +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. >> >> 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! > > Hi Rusty & Asias, > > I assume you mean something like the following patch to allow kbuild to > work when VHOST_NET + VHOST_SCSI are both enabled and sharing vhost.o, > yes..?
No, that's a separate issue.
memcpy_fromiovec() has nothing to do with networking: that was just the first user. Note that crypto/algif_skcipher.c also uses it. The obvious answer is to move it into lib/.
OTOH making vhost_scsi depend on CONFIG_NET is breathtakingly lazy. I expect better from experienced kernel hackers :(
Rusty.
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