lkml.org 
[lkml]   [2006]   [Nov]   [22]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
SubjectRe: [linux-usb-devel] 2.6.19-rc5: modular USB rebuilds vmlinux?
Date
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

On Wednesday 22 November 2006 21:54, 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.
>

yes, but it still costs extra vmlinuz build when just to rebuild of a single
module (or subsystem as was in this case) is needed. And this implies also
reboot - how should one know if this is safe to leave current kernel with new
modules?

> > {pts/0}% grep USB build/linux-2.6.19/.config | grep -v '^#'
> > CONFIG_USB_ARCH_HAS_HCD=y
> > CONFIG_USB_ARCH_HAS_OHCI=y
> > CONFIG_USB_ARCH_HAS_EHCI=y
> > CONFIG_USB=m
> > CONFIG_USB_DEBUG=y
> > CONFIG_USB_DEVICEFS=y
> > CONFIG_USB_BANDWIDTH=y
> > CONFIG_USB_DYNAMIC_MINORS=y
> > CONFIG_USB_SUSPEND=y
> > CONFIG_USB_OHCI_HCD=m
> > CONFIG_USB_OHCI_LITTLE_ENDIAN=y
> > CONFIG_USB_ACM=m
> > CONFIG_USB_PRINTER=m
> > CONFIG_USB_STORAGE=m
> > CONFIG_USB_STORAGE_DATAFAB=y
> > CONFIG_USB_STORAGE_FREECOM=y
> > CONFIG_USB_STORAGE_ISD200=y
> > CONFIG_USB_STORAGE_DPCM=y
> > CONFIG_USB_STORAGE_USBAT=y
> > CONFIG_USB_STORAGE_SDDR09=y
> > CONFIG_USB_STORAGE_SDDR55=y
> > CONFIG_USB_STORAGE_JUMPSHOT=y
> > CONFIG_USB_KBD=m
> > CONFIG_USB_MOUSE=m
> > CONFIG_USB_SERIAL=m
> > CONFIG_USB_SERIAL_GENERIC=y
> > CONFIG_USB_SERIAL_PL2303=m
>
> ---
> ~Randy
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.5 (GNU/Linux)

iD8DBQFFZKEsR6LMutpd94wRAugsAJ9aGrMgXmRXwSHPsg7CVPHXLUSc2QCdFoij
akMXiiVn6VJJ653qvL8w0f8=
=qvQ4
-----END PGP SIGNATURE-----
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2006-11-22 20:15    [W:0.027 / U:3.904 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site