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Revision f82f3f9422d4da1eeec6f6cf3e64c6c34c4fe19b authored by Roman Zippel on 30 August 2007, 03:06:17 UTC, committed by Sam Ravnborg on 01 September 2007, 06:24:09 UTC 
kconfig: oldconfig shall not set symbols if it does not need to
 
Avoid setting the value if the symbol doesn't need to be changed or can't
be changed. Later choices may change the dependencies and thus the
possible input range.

make oldconfig from a 2.6.22 .config with CONFIG_HOTPLUG_CPU not set
was in some configurations setting CONFIG_HOTPLUG_CPU=y without asking,
even when there was no actual requirement for CONFIG_HOTPLUG_CPU.
This was triggered by SUSPEND_SMP that does a select HOTPLUG_CPU.

Signed-off-by: Roman Zippel <zippel@linux-m68k.org>
Tested-by: Hugh Dickins <hugh@veritas.com>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
1 parent 2f81ecc
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Makefile 
#
# sparc/Makefile
#
# Makefile for the architecture dependent flags and dependencies on the
# Sparc.
#
# Copyright (C) 1994 David S. Miller (davem@caip.rutgers.edu)
#

#
# Uncomment the first CFLAGS if you are doing kgdb source level
# debugging of the kernel to get the proper debugging information.

AS              := $(AS) -32
LDFLAGS		:= -m elf32_sparc
CHECKFLAGS	+= -D__sparc__

#CFLAGS := $(CFLAGS) -g -pipe -fcall-used-g5 -fcall-used-g7
CFLAGS := $(CFLAGS) -m32 -pipe -mno-fpu -fcall-used-g5 -fcall-used-g7
AFLAGS := $(AFLAGS) -m32

#LDFLAGS_vmlinux = -N -Ttext 0xf0004000
#  Since 2.5.40, the first stage is left not btfix-ed.
#  Actual linking is done with "make image".
LDFLAGS_vmlinux = -r

head-y := arch/sparc/kernel/head.o arch/sparc/kernel/init_task.o
HEAD_Y := $(head-y)

core-y += arch/sparc/kernel/ arch/sparc/mm/ arch/sparc/math-emu/
libs-y += arch/sparc/prom/ arch/sparc/lib/

drivers-$(CONFIG_OPROFILE)	+= arch/sparc/oprofile/

# Export what is needed by arch/sparc/boot/Makefile
# Renaming is done to avoid confusing pattern matching rules in 2.5.45 (multy-)
INIT_Y		:= $(patsubst %/, %/built-in.o, $(init-y))
CORE_Y		:= $(core-y)
CORE_Y		+= kernel/ mm/ fs/ ipc/ security/ crypto/ block/
CORE_Y		:= $(patsubst %/, %/built-in.o, $(CORE_Y))
DRIVERS_Y	:= $(patsubst %/, %/built-in.o, $(drivers-y))
NET_Y		:= $(patsubst %/, %/built-in.o, $(net-y))
LIBS_Y1		:= $(patsubst %/, %/lib.a, $(libs-y))
LIBS_Y2		:= $(patsubst %/, %/built-in.o, $(libs-y))
LIBS_Y		:= $(LIBS_Y1) $(LIBS_Y2)

ifdef CONFIG_KALLSYMS
kallsyms.o := .tmp_kallsyms2.o
endif

export INIT_Y CORE_Y DRIVERS_Y NET_Y LIBS_Y HEAD_Y kallsyms.o

# Default target
all: image

boot := arch/sparc/boot

image tftpboot.img: vmlinux
	$(Q)$(MAKE) $(build)=$(boot) $(boot)/$@

archclean:
	$(Q)$(MAKE) $(clean)=$(boot)

CLEAN_FILES += arch/$(ARCH)/boot/System.map

# Don't use tabs in echo arguments.
define archhelp
  echo  '* image        - kernel image ($(boot)/image)'
  echo  '  tftpboot.img - image prepared for tftp'
endef
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