kbuild: Group together descending/linking in drivers/*

We currently decide whether we need to descend into the subdirs of
drivers/ in drivers/Makefile, but link the resulting objects from
the top-level Makefile.

Making these two decisions at the same time (in drivers/Makefile) cleans
up the top-level Makefile quite a bit.

Link order does not change at all apart from sound/, which is now linked
last.

Makefile

@@ -110,56 +110,8 @@ NETWORKS	=net/network.o
 LIBS		=$(TOPDIR)/lib/lib.a
 SUBDIRS		=init kernel lib drivers mm fs net ipc sound
 
-DRIVERS-n :=
-DRIVERS-y :=
-DRIVERS-m :=
-DRIVERS-  :=
-
-DRIVERS-$(CONFIG_ACPI) += drivers/acpi/acpi.o
-DRIVERS-$(CONFIG_PCI) += drivers/pci/driver.o
-DRIVERS-$(CONFIG_PARPORT) += drivers/parport/driver.o
-DRIVERS-y += drivers/base/base.o \
-	drivers/char/char.o \
-	drivers/block/block.o \
-	drivers/misc/misc.o \
-	drivers/net/net.o \
-	drivers/media/media.o
-DRIVERS-$(CONFIG_NUBUS) += drivers/nubus/built-in.o
-DRIVERS-$(CONFIG_ATM) += drivers/atm/atm.o
-DRIVERS-$(CONFIG_IDE) += drivers/ide/idedriver.o
-DRIVERS-$(CONFIG_FC4) += drivers/fc4/built-in.o
-DRIVERS-$(CONFIG_SCSI) += drivers/scsi/scsidrv.o
-DRIVERS-$(CONFIG_FUSION) += drivers/message/message.o
-DRIVERS-$(CONFIG_IEEE1394) += drivers/ieee1394/ieee1394drv.o
-
-ifneq ($(CONFIG_CD_NO_IDESCSI)$(CONFIG_BLK_DEV_IDECD)$(CONFIG_BLK_DEV_SR)$(CONFIG_PARIDE_PCD),)
-DRIVERS-y += drivers/cdrom/driver.o
-endif
-
+DRIVERS-y 	= drivers/built-in.o
 DRIVERS-$(CONFIG_SOUND) += sound/sound.o
-DRIVERS-$(CONFIG_MTD) += drivers/mtd/mtdlink.o
-DRIVERS-$(CONFIG_PCMCIA) += drivers/pcmcia/pcmcia.o
-DRIVERS-$(CONFIG_DIO) += drivers/dio/built-in.o
-DRIVERS-$(CONFIG_SBUS) += drivers/sbus/sbus_all.o
-DRIVERS-$(CONFIG_ZORRO) += drivers/zorro/driver.o
-DRIVERS-$(CONFIG_ALL_PPC) += drivers/macintosh/macintosh.o
-DRIVERS-$(CONFIG_MAC) += drivers/macintosh/macintosh.o
-DRIVERS-$(CONFIG_PNP) += drivers/pnp/pnp.o
-DRIVERS-$(CONFIG_SGI_IP22) += drivers/sgi/built-in.o
-DRIVERS-$(CONFIG_VT) += drivers/video/video.o
-DRIVERS-$(CONFIG_PARIDE) += drivers/block/paride/built-in.o
-DRIVERS-$(CONFIG_TC) += drivers/tc/built-in.o
-DRIVERS-$(CONFIG_USB) += drivers/usb/usbdrv.o
-DRIVERS-$(CONFIG_INPUT) += drivers/input/inputdrv.o
-DRIVERS-$(CONFIG_GAMEPORT) += drivers/input/gameport/gamedrv.o
-DRIVERS-$(CONFIG_SERIO) += drivers/input/serio/seriodrv.o
-DRIVERS-$(CONFIG_I2O) += drivers/message/message.o
-DRIVERS-$(CONFIG_I2C) += drivers/i2c/i2c.o
-DRIVERS-$(CONFIG_PHONE) += drivers/telephony/telephony.o
-DRIVERS-$(CONFIG_MD) += drivers/md/mddev.o
-DRIVERS-$(CONFIG_BLUEZ) += drivers/bluetooth/bluetooth.o
-DRIVERS-$(CONFIG_HOTPLUG_PCI) += drivers/hotplug/vmlinux-obj.o
-DRIVERS-$(CONFIG_ISDN) += drivers/isdn/vmlinux-obj.o
 
 DRIVERS := $(DRIVERS-y)
 

drivers/Makefile

@@ -9,43 +9,43 @@
 mod-subdirs :=	dio mtd sbus video macintosh usb input telephony sgi ide \
 		message scsi md ieee1394 pnp isdn atm \
 		fc4 i2c acpi bluetooth input/serio \
-		input/gameport parport hotplug
+		input/gameport parport hotplug \
+		base char block misc net media cdrom
 
-subdir-y :=	base char block net misc media cdrom
-subdir-m :=	$(subdir-y)
-
-subdir-$(CONFIG_PARPORT)	+= parport
-subdir-$(CONFIG_HOTPLUG_PCI)	+= hotplug
-subdir-$(CONFIG_DIO)		+= dio
-subdir-$(CONFIG_PCI)		+= pci
-subdir-$(CONFIG_PCMCIA)		+= pcmcia
-subdir-$(CONFIG_MTD)		+= mtd
-subdir-$(CONFIG_SBUS)		+= sbus
-subdir-$(CONFIG_ZORRO)		+= zorro
-subdir-$(CONFIG_NUBUS)		+= nubus
-subdir-$(CONFIG_TC)		+= tc
-subdir-$(CONFIG_VT)		+= video
-subdir-$(CONFIG_MAC)		+= macintosh
-subdir-$(CONFIG_ALL_PPC)	+= macintosh
-subdir-$(CONFIG_USB)		+= usb
-subdir-$(CONFIG_INPUT)		+= input
-subdir-$(CONFIG_SERIO)		+= input/serio
-subdir-$(CONFIG_GAMEPORT)	+= input/gameport
-subdir-$(CONFIG_PHONE)		+= telephony
-subdir-$(CONFIG_SGI)		+= sgi
-subdir-$(CONFIG_IDE)		+= ide
-subdir-$(CONFIG_SCSI)		+= scsi
-subdir-$(CONFIG_I2O)		+= message
-subdir-$(CONFIG_FUSION)		+= message
-subdir-$(CONFIG_MD)		+= md
-subdir-$(CONFIG_IEEE1394)	+= ieee1394
-subdir-$(CONFIG_PNP)		+= pnp
-subdir-$(CONFIG_ISDN)		+= isdn
-subdir-$(CONFIG_ATM)		+= atm
-subdir-$(CONFIG_FC4)		+= fc4
-subdir-$(CONFIG_I2C)		+= i2c
-subdir-$(CONFIG_ACPI)		+= acpi
-
-subdir-$(CONFIG_BLUEZ)		+= bluetooth
+obj-$(CONFIG_ACPI)		+= acpi/
+obj-$(CONFIG_PCI)		+= pci/
+obj-$(CONFIG_PARPORT)		+= parport/
+obj-y 				+= base/ char/ block/ misc/ net/ media/
+obj-$(CONFIG_NUBUS)		+= nubus/
+obj-$(CONFIG_ATM)		+= atm/
+obj-$(CONFIG_IDE)		+= ide/
+obj-$(CONFIG_FC4)		+= fc4/
+obj-$(CONFIG_SCSI)		+= scsi/
+obj-$(CONFIG_FUSION)		+= message/
+obj-$(CONFIG_IEEE1394)		+= ieee1394/
+obj-y				+= cdrom/
+obj-$(CONFIG_MTD)		+= mtd/
+obj-$(CONFIG_PCMCIA)		+= pcmcia/
+obj-$(CONFIG_DIO)		+= dio/
+obj-$(CONFIG_SBUS)		+= sbus/
+obj-$(CONFIG_ZORRO)		+= zorro/
+obj-$(CONFIG_ALL_PPC)		+= macintosh/
+obj-$(CONFIG_MAC)		+= macintosh/
+obj-$(CONFIG_PNP)		+= pnp/
+obj-$(CONFIG_SGI)		+= sgi/
+obj-$(CONFIG_VT)		+= video/
+obj-$(CONFIG_PARIDE) 		+= block/paride/
+obj-$(CONFIG_TC)		+= tc/
+obj-$(CONFIG_USB)		+= usb/
+obj-$(CONFIG_INPUT)		+= input/
+obj-$(CONFIG_GAMEPORT)		+= input/gameport/
+obj-$(CONFIG_SERIO)		+= input/serio/
+obj-$(CONFIG_I2O)		+= message/
+obj-$(CONFIG_I2C)		+= i2c/
+obj-$(CONFIG_PHONE)		+= telephony/
+obj-$(CONFIG_MD)		+= md/
+obj-$(CONFIG_BLUEZ)		+= bluetooth/
+obj-$(CONFIG_HOTPLUG_PCI)	+= hotplug/
+obj-$(CONFIG_ISDN)		+= isdn/
 
 include $(TOPDIR)/Rules.make

drivers/acpi/Makefile

@@ -2,8 +2,6 @@
 # Makefile for the Linux ACPI interpreter
 # 
 
-O_TARGET := acpi.o
-
 export ACPI_CFLAGS
 
 ACPI_CFLAGS	:= -D_LINUX -I$(CURDIR)/include

drivers/atm/Makefile

@@ -2,8 +2,6 @@
 # Makefile for the Linux network (ATM) device drivers.
 #
 
-O_TARGET := atm.o
-
 export-objs := uPD98402.o suni.o idt77105.o
 
 obj-y := atmdev_init.o

drivers/base/Makefile

-O_TARGET	:= base.o
+# Makefile for the Linux device tree
 
 obj-y		:= core.o sys.o interface.o fs.o power.o
 

drivers/block/Makefile

@@ -8,8 +8,6 @@
 # In the future, some of these should be built conditionally.
 #
 
-O_TARGET := block.o
-
 export-objs	:= elevator.o ll_rw_blk.o blkpg.o loop.o DAC960.o genhd.o block_ioctl.o
 
 obj-y	:= elevator.o ll_rw_blk.o blkpg.o genhd.o block_ioctl.o
@@ -33,6 +31,4 @@ obj-$(CONFIG_BLK_DEV_DAC960)	+= DAC960.o
 obj-$(CONFIG_BLK_DEV_UMEM)	+= umem.o
 obj-$(CONFIG_BLK_DEV_NBD)	+= nbd.o
 
-subdir-$(CONFIG_PARIDE) += paride
-
 include $(TOPDIR)/Rules.make

drivers/bluetooth/Makefile

@@ -2,21 +2,14 @@
 # Makefile for Bluetooth HCI device drivers.
 #
 
-O_TARGET	:= bluetooth.o
-
-list-multi	:= hci_uart.o
-
 obj-$(CONFIG_BLUEZ_HCIUSB)	+= hci_usb.o
 obj-$(CONFIG_BLUEZ_HCIVHCI)	+= hci_vhci.o
-
 obj-$(CONFIG_BLUEZ_HCIUART)	+= hci_uart.o
-uart-y				:= hci_ldisc.o
-uart-$(CONFIG_BLUEZ_HCIUART_H4)	+= hci_h4.o
-
 obj-$(CONFIG_BLUEZ_HCIDTL1)	+= dtl1_cs.o
 obj-$(CONFIG_BLUEZ_HCIBLUECARD)	+= bluecard_cs.o
 
-include $(TOPDIR)/Rules.make
+hci_uart-y				:= hci_ldisc.o
+hci_uart-$(CONFIG_BLUEZ_HCIUART_H4)	+= hci_h4.o
+hci_uart-objs				:= $(hci_uart-y)
 
-hci_uart.o: $(uart-y)
-	$(LD) -r -o $@ $(uart-y)
+include $(TOPDIR)/Rules.make

drivers/cdrom/Makefile

@@ -3,9 +3,6 @@
 # 30 Jan 1998, Michael Elizabeth Chastain, <mailto:mec@shout.net>
 # Rewritten to use lists instead of if-statements.
 
-O_TARGET	:= driver.o
-
-
 # All of the (potential) objects that export symbols.
 # This list comes from 'grep -l EXPORT_SYMBOL *.[hc]'.
 

drivers/char/Makefile

@@ -7,8 +7,6 @@
 #
 FONTMAPFILE = cp437.uni
 
-O_TARGET := char.o
-
 obj-y	 += mem.o tty_io.o n_tty.o tty_ioctl.o raw.o pty.o misc.o random.o
 
 # All of the (potential) objects that export symbols.

drivers/hotplug/Makefile

@@ -2,8 +2,6 @@
 # Makefile for the Linux kernel pci hotplug controller drivers.
 #
 
-O_TARGET	:= vmlinux-obj.o
-
 export-objs	:= pci_hotplug_core.o pci_hotplug_util.o
 
 obj-$(CONFIG_HOTPLUG_PCI)		+= pci_hotplug.o

drivers/i2c/Makefile

@@ -2,8 +2,6 @@
 # Makefile for the kernel i2c bus driver.
 #
 
-O_TARGET := i2c.o
-
 export-objs	:= i2c-core.o i2c-algo-bit.o i2c-algo-pcf.o \
 		   i2c-algo-ite.o i2c-proc.o
 

drivers/ide/Makefile

@@ -8,15 +8,9 @@
 # In the future, some of these should be built conditionally.
 #
 
-O_TARGET := idedriver.o
-
 export-objs	:= ide-taskfile.o ide.o ide-features.o ide-probe.o quirks.o pcidma.o tcq.o \
 		   atapi.o ataraid.o
 
-obj-y		:=
-obj-m		:=
-ide-obj-y	:=
-
 obj-$(CONFIG_BLK_DEV_HD)	+= hd.o
 obj-$(CONFIG_BLK_DEV_IDE)       += ide-mod.o
 obj-$(CONFIG_BLK_DEV_IDECS)     += ide-cs.o

drivers/ieee1394/Makefile

@@ -2,8 +2,6 @@
 # Makefile for the Linux IEEE 1394 implementation
 #
 
-O_TARGET := ieee1394drv.o
-
 export-objs := ieee1394_core.o ohci1394.o cmp.o
 
 ieee1394-objs := ieee1394_core.o ieee1394_transactions.o hosts.o \

drivers/input/Makefile

@@ -2,10 +2,6 @@
 # Makefile for the input core drivers.
 #
 
-# The target object and module list name.
-
-O_TARGET	:= inputdrv.o
-
 # Objects that export symbols.
 
 mod-subdirs	:= joystick

drivers/input/gameport/Makefile

@@ -2,10 +2,6 @@
 # Makefile for the gameport drivers.
 #
 
-# The target object and module list name.
-
-O_TARGET	:= gamedrv.o
-
 # Objects that export symbols.
 
 export-objs	:= gameport.o

drivers/input/serio/Makefile

@@ -2,10 +2,6 @@
 # Makefile for the input core drivers.
 #
 
-# The target object and module list name.
-
-O_TARGET	:= seriodrv.o
-
 # Objects that export symbols.
 
 export-objs	:= serio.o

drivers/isdn/Makefile

 # Makefile for the kernel ISDN subsystem and device drivers.
 
-# The target object and module list name.
-
-O_TARGET	:= vmlinux-obj.o
-
 # Object files in subdirectories
 
 mod-subdirs				:= i4l hisax capi eicon

drivers/macintosh/Makefile

 #
 # Makefile for the Macintosh-specific device drivers.
 #
-# Note! Dependencies are done automagically by 'make dep', which also
-# removes any old dependencies. DON'T put your own dependencies here
-# unless it's something special (ie not a .c file).
-#
-# Note 2! The CFLAGS definitions are now inherited from the
-# parent makes..
-#
-
-# The target object and module list name.
-
-O_TARGET	:= macintosh.o
 
 # Objects that export symbols.
 

drivers/md/Makefile

@@ -2,8 +2,6 @@
 # Makefile for the kernel software RAID and LVM drivers.
 #
 
-O_TARGET	:= mddev.o
-
 export-objs	:= md.o xor.o
 lvm-mod-objs	:= lvm.o lvm-snap.o lvm-fs.o
 

drivers/media/Makefile

 #
 # Makefile for the kernel multimedia device drivers.
 #
-# Note! Dependencies are done automagically by 'make dep', which also
-# removes any old dependencies. DON'T put your own dependencies here
-# unless it's something special (ie not a .c file).
-#
-# Note 2! The CFLAGS definitions are now inherited from the
-# parent makes..
-#
 
 subdir-y     := video radio
 mod-subdirs  := video radio
 
-O_TARGET     := media.o
 obj-y        := $(join $(subdir-y),$(subdir-y:%=/%.o))
 
 include $(TOPDIR)/Rules.make

drivers/message/Makefile

@@ -2,8 +2,6 @@
 # Makefile for MPT based block devices
 #
 
-O_TARGET := message.o
-
 mod-subdirs := i2o fusion 
 
 obj-$(CONFIG_I2O)	+= i2o/

drivers/misc/Makefile

 #
 # Makefile for misc devices that really don't fit anywhere else.
 #
-# Note! Dependencies are done automagically by 'make dep', which also
-# removes any old dependencies. DON'T put your own dependencies here
-# unless it's something special (ie not a .c file).
-#
-# Note 2! The CFLAGS definitions are now inherited from the
-# parent makes..
-#
-
-O_TARGET := misc.o
 
 include $(TOPDIR)/Rules.make
-
-fastdep:

drivers/mtd/Makefile

@@ -11,8 +11,6 @@ obj-m           :=
 obj-n           :=
 obj-            :=
 
-O_TARGET	:= mtdlink.o
-
 export-objs	:= mtdcore.o mtdpart.o redboot.o bootldr.o afs.o
 
 mod-subdirs	:= 

drivers/net/Makefile

-# File: drivers/net/Makefile
 #
 # Makefile for the Linux network (ethercard) device drivers.
 #
 
-obj-y           :=
-obj-m           :=
-obj-n           :=
-obj-            :=
-
 mod-subdirs     := appletalk arcnet fc irda tokenring tulip pcmcia wireless \
 		   wan ../acorn/net
 
-O_TARGET := net.o
-
 # All of the (potential) objects that export symbols.
 # This list comes from 'grep -l EXPORT_SYMBOL *.[hc]'.
 

drivers/parport/Makefile

 #
 # Makefile for the kernel Parallel port device drivers.
 #
-# Note! Parport is the Borg.  We have assimilated some other
-# drivers in the `char', `net' and `scsi' directories,
-# but left them there to allay suspicion.
-#
-# 7 October 2000, Bartlomiej Zolnierkiewicz <bkz@linux-ide.org>
-# Rewritten to use lists instead of if-statements.
-#
-
-O_TARGET := driver.o
 
 export-objs	:= init.o parport_pc.o
 

drivers/pci/Makefile

 #
 # Makefile for the PCI bus specific drivers.
 #
-# Note! Dependencies are done automagically by 'make dep', which also
-# removes any old dependencies. DON'T put your own dependencies here
-# unless it's something special (ie not a .c file).
-#
-# Note 2! The CFLAGS definition is now inherited from the
-# parent makefile.
-#
-
-O_TARGET := driver.o
 
 export-objs := access.o hotplug.o pci-driver.o pci.o pool.o probe.o proc.o search.o
 

drivers/pcmcia/Makefile

@@ -2,8 +2,6 @@
 # Makefile for the kernel pcmcia subsystem (c/o David Hinds)
 #
 
-O_TARGET := pcmcia.o
-
 export-objs := ds.o cs.o yenta.o pci_socket.o
 
 obj-$(CONFIG_PCMCIA)			+= pcmcia_core.o ds.o

drivers/pnp/Makefile

@@ -2,8 +2,6 @@
 # Makefile for the kernel Plug-and-Play device drivers.
 #
 
-O_TARGET := pnp.o
-
 export-objs := isapnp.o pnpbios_core.o
 
 isa-pnp-proc-$(CONFIG_PROC_FS) = isapnp_proc.o

drivers/sbus/Makefile

 #
 # Makefile for the linux kernel.
 #
-# Note! Dependencies are done automagically by 'make dep', which also
-# removes any old dependencies. DON'T put your own dependencies here
-# unless it's something special (ie not a .c file).
-#
-# Note 2! The CFLAGS definitions are now in the main makefile...
 
-O_TARGET := sbus_all.o
 ifneq ($(ARCH),m68k)
 obj-y    := sbus.o dvma.o
 endif

drivers/scsi/Makefile

@@ -18,9 +18,6 @@ CFLAGS_aha152x.o =   -DAHA152X_STAT -DAUTOCONF
 CFLAGS_gdth.o    = # -DDEBUG_GDTH=2 -D__SERIAL__ -D__COM2__ -DGDTH_STATISTICS
 CFLAGS_seagate.o =   -DARBITRATE -DPARITY -DSEAGATE_USE_ASM
 
-
-O_TARGET := scsidrv.o
-
 export-objs	:= scsi_syms.o 53c700.o
 mod-subdirs	:= pcmcia ../acorn/scsi
 

drivers/telephony/Makefile

 #
 # Makefile for drivers/telephony
 #
-# Note! Dependencies are done automagically by 'make dep', which also
-# removes any old dependencies. DON'T put your own dependencies here
-# unless it's something special (ie not a .c file).
-#
 
-obj-y   :=
-obj-n   :=
-obj-m   :=
-obj-    :=
 export-objs := phonedev.o ixj.o
 
 obj-$(CONFIG_PHONE) += phonedev.o
 obj-$(CONFIG_PHONE_IXJ) += ixj.o
 obj-$(CONFIG_PHONE_IXJ_PCMCIA) += ixj_pcmcia.o
 
-O_TARGET := telephony.o
-
 include $(TOPDIR)/Rules.make
 

drivers/usb/Makefile

@@ -2,8 +2,6 @@
 # Makefile for the kernel USB device drivers.
 #
 
-O_TARGET	:= usbdrv.o
-
 # Object files in subdirectories
 mod-subdirs	:= serial
 

drivers/video/Makefile

@@ -2,8 +2,6 @@
 # 5 Aug 1999, James Simmons, <mailto:jsimmons@users.sf.net>
 # Rewritten to use lists instead of if-statements.
 
-O_TARGET := video.o
-
 mod-subdirs	:= matrox
 
 # All of the (potential) objects that export symbols.

drivers/zorro/Makefile

 #
 # Makefile for the Zorro bus specific drivers.
 #
-# Note! Dependencies are done automagically by 'make dep', which also
-# removes any old dependencies. DON'T put your own dependencies here
-# unless it's something special (ie not a .c file).
-#
-# Note 2! The CFLAGS definition is now inherited from the
-# parent makefile.
-#
-
-O_TARGET := driver.o
 
 export-objs		:= zorro.o