[PATCH] remove gcc-2 checks

Remove various things which were checking for gcc-1.x and gcc-2.x compilers.

From: Adrian Bunk <bunk@stusta.de>

    Some documentation updates and removes some code paths for gcc < 3.2.

Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

3 files changed, 6 insertions, 13 deletions

diff --git a/arch/i386/Kconfig b/arch/i386/Kconfig
index 968fabd8723f..486449e9e710 100644
--- a/arch/i386/Kconfig
+++ b/arch/i386/Kconfig
@@ -630,10 +630,6 @@ config REGPARM
         and passes the first three arguments of a function call in registers.
         This will probably break binary only modules.
 
-        This feature is only enabled for gcc-3.0 and later - earlier compilers
-        generate incorrect output with certain kernel constructs when
-        -mregparm=3 is used.
-
 config SECCOMP
         bool "Enable seccomp to safely compute untrusted bytecode"
         depends on PROC_FS
diff --git a/arch/i386/Makefile b/arch/i386/Makefile
index d121ea18460f..b84119f9cc63 100644
--- a/arch/i386/Makefile
+++ b/arch/i386/Makefile
@@ -37,10 +37,7 @@ CFLAGS += $(call cc-option,-mpreferred-stack-boundary=2)
 # CPU-specific tuning. Anything which can be shared with UML should go here.
 include $(srctree)/arch/i386/Makefile.cpu
 
-# -mregparm=3 works ok on gcc-3.0 and later
-#
-GCC_VERSION                     := $(call cc-version)
-cflags-$(CONFIG_REGPARM)        += $(shell if [ $(GCC_VERSION) -ge 0300 ] ; then echo "-mregparm=3"; fi ;)
+cflags-$(CONFIG_REGPARM)        += -mregparm=3
 
 # Disable unit-at-a-time mode, it makes gcc use a lot more stack
 # due to the lack of sharing of stacklots.
diff --git a/arch/i386/Makefile.cpu b/arch/i386/Makefile.cpu
index 8e51456df23d..dcd936ef45db 100644
--- a/arch/i386/Makefile.cpu
+++ b/arch/i386/Makefile.cpu
@@ -1,7 +1,7 @@
 # CPU tuning section - shared with UML.
 # Must change only cflags-y (or [yn]), not CFLAGS! That makes a difference for UML.
 
-#-mtune exists since gcc 3.4, and some -mcpu flavors didn't exist in gcc 2.95.
+#-mtune exists since gcc 3.4
 HAS_MTUNE       := $(call cc-option-yn, -mtune=i386)
 ifeq ($(HAS_MTUNE),y)
 tune            = $(call cc-option,-mtune=$(1),)
@@ -14,7 +14,7 @@ cflags-$(CONFIG_M386)		+= -march=i386
 cflags-$(CONFIG_M486)           += -march=i486
 cflags-$(CONFIG_M586)           += -march=i586
 cflags-$(CONFIG_M586TSC)        += -march=i586
-cflags-$(CONFIG_M586MMX)        += $(call cc-option,-march=pentium-mmx,-march=i586)
+cflags-$(CONFIG_M586MMX)        += -march=pentium-mmx
 cflags-$(CONFIG_M686)           += -march=i686
 cflags-$(CONFIG_MPENTIUMII)     += -march=i686 $(call tune,pentium2)
 cflags-$(CONFIG_MPENTIUMIII)    += -march=i686 $(call tune,pentium3)
@@ -23,8 +23,8 @@ cflags-$(CONFIG_MPENTIUM4)	+= -march=i686 $(call tune,pentium4)
 cflags-$(CONFIG_MK6)            += -march=k6
 # Please note, that patches that add -march=athlon-xp and friends are pointless.
 # They make zero difference whatsosever to performance at this time.
-cflags-$(CONFIG_MK7)            += $(call cc-option,-march=athlon,-march=i686 $(align)-functions=4)
-cflags-$(CONFIG_MK8)            += $(call cc-option,-march=k8,$(call cc-option,-march=athlon,-march=i686 $(align)-functions=4))
+cflags-$(CONFIG_MK7)            += -march=athlon
+cflags-$(CONFIG_MK8)            += $(call cc-option,-march=k8,-march=athlon)
 cflags-$(CONFIG_MCRUSOE)        += -march=i686 $(align)-functions=0 $(align)-jumps=0 $(align)-loops=0
 cflags-$(CONFIG_MEFFICEON)      += -march=i686 $(call tune,pentium3) $(align)-functions=0 $(align)-jumps=0 $(align)-loops=0
 cflags-$(CONFIG_MWINCHIPC6)     += $(call cc-option,-march=winchip-c6,-march=i586)
@@ -37,5 +37,5 @@ cflags-$(CONFIG_MVIAC3_2)	+= $(call cc-option,-march=c3-2,-march=i686)
 cflags-$(CONFIG_X86_ELAN)       += -march=i486
 
 # Geode GX1 support
-cflags-$(CONFIG_MGEODEGX1)              += $(call cc-option,-march=pentium-mmx,-march=i486)
+cflags-$(CONFIG_MGEODEGX1)      += -march=pentium-mmx