Re: [linux-usb-devel] 2.6.19-rc5: modular USB rebuilds vmlinux?

[Randy Dunlap]

Alan Stern wrote:
> On Wed, 22 Nov 2006, Randy Dunlap wrote:
>
> > On Wed, 22 Nov 2006 21:45:55 +0300 Andrey Borzenkov wrote:
> >
> > > -----BEGIN PGP SIGNED MESSAGE-----
> > > Hash: SHA1
> > >
> > > I was under impression that I have fully modular USB. Still:
> > >
> > > {pts/1}% make -C ~/src/linux-git O=$HOME/build/linux-2.6.19
> > > make: Entering directory `/home/bor/src/linux-git'
> > >   GEN     /home/bor/build/linux-2.6.19/Makefile
> > > scripts/kconfig/conf -s arch/i386/Kconfig
> > >   Using /home/bor/src/linux-git as source for kernel
> > >   GEN     /home/bor/build/linux-2.6.19/Makefile
> > >   CHK     include/linux/version.h
> > >   CHK     include/linux/utsrelease.h
> > >   CHK     include/linux/compile.h
> > >   CC [M]  drivers/usb/core/usb.o
> > >   CC [M]  drivers/usb/core/hub.o
> > >   CC [M]  drivers/usb/core/hcd.o
> > >   CC [M]  drivers/usb/core/urb.o
> > >   CC [M]  drivers/usb/core/message.o
> > >   CC [M]  drivers/usb/core/driver.o
> > >   CC [M]  drivers/usb/core/config.o
> > >   CC [M]  drivers/usb/core/file.o
> > >   CC [M]  drivers/usb/core/buffer.o
> > >   CC [M]  drivers/usb/core/sysfs.o
> > >   CC [M]  drivers/usb/core/endpoint.o
> > >   CC [M]  drivers/usb/core/devio.o
> > >   CC [M]  drivers/usb/core/notify.o
> > >   CC [M]  drivers/usb/core/generic.o
> > >   CC [M]  drivers/usb/core/hcd-pci.o
> > >   CC [M]  drivers/usb/core/inode.o
> > >   CC [M]  drivers/usb/core/devices.o
> > >   LD [M]  drivers/usb/core/usbcore.o
> > >   CC      drivers/usb/host/pci-quirks.o
> > >   LD      drivers/usb/host/built-in.o
> > >  
> > > Sorry? How comes it still compiles something into main kernel?
> > It's just a quirk of the build machinery.
> > The built-in.o file should be 8 bytes or so, with nothing
> > really in it.
>
> Not so.  Randy, you missed the line for pci-quirks.o.  It really is a 
> non-trivial object file and it really goes into the main kernel.
>
> That's because it actually is a PCI driver, living in a USB source 
> directory.  It handles the quirks needed by various PCI-based USB host 
> controllers.

Damm.  Thanks, Alan.

--
~Randy
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