15 files changed, 52 insertions, 30 deletions

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 73067efd4845..ade7e924bef5 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -1603,8 +1603,8 @@ config NR_CPUS
         default "4"
 
 config HOTPLUG_CPU
-        bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
-        depends on SMP && HOTPLUG && EXPERIMENTAL
+        bool "Support for hot-pluggable CPUs"
+        depends on SMP && HOTPLUG
         help
           Say Y here to experiment with turning CPUs off and on.  CPUs
           can be controlled through /sys/devices/system/cpu.
@@ -1645,8 +1645,8 @@ config HZ
         default 100
 
 config THUMB2_KERNEL
-        bool "Compile the kernel in Thumb-2 mode (EXPERIMENTAL)"
-        depends on CPU_V7 && !CPU_V6 && !CPU_V6K && EXPERIMENTAL
+        bool "Compile the kernel in Thumb-2 mode"
+        depends on CPU_V7 && !CPU_V6 && !CPU_V6K
         select AEABI
         select ARM_ASM_UNIFIED
         select ARM_UNWIND
@@ -1850,6 +1850,7 @@ config XEN_DOM0
 config XEN
         bool "Xen guest support on ARM (EXPERIMENTAL)"
         depends on EXPERIMENTAL && ARM && OF
+        depends on CPU_V7 && !CPU_V6
         help
           Say Y if you want to run Linux in a Virtual Machine on Xen on ARM.
 
diff --git a/arch/arm/Makefile b/arch/arm/Makefile
index f023e3acdfbd..5f914fca911b 100644
--- a/arch/arm/Makefile
+++ b/arch/arm/Makefile
@@ -21,8 +21,6 @@ endif
 OBJCOPYFLAGS    :=-O binary -R .comment -S
 GZFLAGS         :=-9
 #KBUILD_CFLAGS  +=-pipe
-# Explicitly specifiy 32-bit ARM ISA since toolchain default can be -mthumb:
-KBUILD_CFLAGS   +=$(call cc-option,-marm,)
 
 # Never generate .eh_frame
 KBUILD_CFLAGS   += $(call cc-option,-fno-dwarf2-cfi-asm)
@@ -105,17 +103,20 @@ endif
 ifeq ($(CONFIG_THUMB2_KERNEL),y)
 AFLAGS_AUTOIT   :=$(call as-option,-Wa$(comma)-mimplicit-it=always,-Wa$(comma)-mauto-it)
 AFLAGS_NOWARN   :=$(call as-option,-Wa$(comma)-mno-warn-deprecated,-Wa$(comma)-W)
-CFLAGS_THUMB2   :=-mthumb $(AFLAGS_AUTOIT) $(AFLAGS_NOWARN)
-AFLAGS_THUMB2   :=$(CFLAGS_THUMB2) -Wa$(comma)-mthumb
+CFLAGS_ISA      :=-mthumb $(AFLAGS_AUTOIT) $(AFLAGS_NOWARN)
+AFLAGS_ISA      :=$(CFLAGS_ISA) -Wa$(comma)-mthumb
 # Work around buggy relocation from gas if requested:
 ifeq ($(CONFIG_THUMB2_AVOID_R_ARM_THM_JUMP11),y)
 CFLAGS_MODULE   +=-fno-optimize-sibling-calls
 endif
+else
+CFLAGS_ISA      :=$(call cc-option,-marm,)
+AFLAGS_ISA      :=$(CFLAGS_ISA)
 endif
 
 # Need -Uarm for gcc < 3.x
-KBUILD_CFLAGS   +=$(CFLAGS_ABI) $(CFLAGS_THUMB2) $(arch-y) $(tune-y) $(call cc-option,-mshort-load-bytes,$(call cc-option,-malignment-traps,)) -msoft-float -Uarm
-KBUILD_AFLAGS   +=$(CFLAGS_ABI) $(AFLAGS_THUMB2) $(arch-y) $(tune-y) -include asm/unified.h -msoft-float
+KBUILD_CFLAGS   +=$(CFLAGS_ABI) $(CFLAGS_ISA) $(arch-y) $(tune-y) $(call cc-option,-mshort-load-bytes,$(call cc-option,-malignment-traps,)) -msoft-float -Uarm
+KBUILD_AFLAGS   +=$(CFLAGS_ABI) $(AFLAGS_ISA) $(arch-y) $(tune-y) -include asm/unified.h -msoft-float
 
 CHECKFLAGS      += -D__arm__
 
diff --git a/arch/arm/boot/Makefile b/arch/arm/boot/Makefile
index 3fdab016aa5c..f2aa09eb658e 100644
--- a/arch/arm/boot/Makefile
+++ b/arch/arm/boot/Makefile
@@ -33,7 +33,7 @@ ifeq ($(CONFIG_XIP_KERNEL),y)
 
 $(obj)/xipImage: vmlinux FORCE
         $(call if_changed,objcopy)
-        @echo '  Kernel: $@ is ready (physical address: $(CONFIG_XIP_PHYS_ADDR))'
+        $(kecho) '  Kernel: $@ is ready (physical address: $(CONFIG_XIP_PHYS_ADDR))'
 
 $(obj)/Image $(obj)/zImage: FORCE
         @echo 'Kernel configured for XIP (CONFIG_XIP_KERNEL=y)'
@@ -48,14 +48,14 @@ $(obj)/xipImage: FORCE
 
 $(obj)/Image: vmlinux FORCE
         $(call if_changed,objcopy)
-        @echo '  Kernel: $@ is ready'
+        $(kecho) '  Kernel: $@ is ready'
 
 $(obj)/compressed/vmlinux: $(obj)/Image FORCE
         $(Q)$(MAKE) $(build)=$(obj)/compressed $@
 
 $(obj)/zImage:  $(obj)/compressed/vmlinux FORCE
         $(call if_changed,objcopy)
-        @echo '  Kernel: $@ is ready'
+        $(kecho) '  Kernel: $@ is ready'
 
 endif
 
@@ -90,7 +90,7 @@ fi
 $(obj)/uImage:  $(obj)/zImage FORCE
         @$(check_for_multiple_loadaddr)
         $(call if_changed,uimage)
-        @echo '  Image $@ is ready'
+        $(kecho) '  Image $@ is ready'
 
 $(obj)/bootp/bootp: $(obj)/zImage initrd FORCE
         $(Q)$(MAKE) $(build)=$(obj)/bootp $@
@@ -98,7 +98,7 @@ $(obj)/bootp/bootp: $(obj)/zImage initrd FORCE
 
 $(obj)/bootpImage: $(obj)/bootp/bootp FORCE
         $(call if_changed,objcopy)
-        @echo '  Kernel: $@ is ready'
+        $(kecho) '  Kernel: $@ is ready'
 
 PHONY += initrd FORCE
 initrd:
diff --git a/arch/arm/include/asm/flat.h b/arch/arm/include/asm/flat.h
index 59426a4595c9..e847d23351ed 100644
--- a/arch/arm/include/asm/flat.h
+++ b/arch/arm/include/asm/flat.h
@@ -8,7 +8,7 @@
 #define flat_argvp_envp_on_stack()              1
 #define flat_old_ram_flag(flags)                (flags)
 #define flat_reloc_valid(reloc, size)           ((reloc) <= (size))
-#define flat_get_addr_from_rp(rp, relval, flags, persistent) get_unaligned(rp)
+#define flat_get_addr_from_rp(rp, relval, flags, persistent) ((void)persistent,get_unaligned(rp))
 #define flat_put_addr_at_rp(rp, val, relval)    put_unaligned(val,rp)
 #define flat_get_relocate_addr(rel)             (rel)
 #define flat_set_persistent(relval, p)          0
diff --git a/arch/arm/include/asm/uaccess.h b/arch/arm/include/asm/uaccess.h
index 77bd79f2ffdb..7e1f76027f66 100644
--- a/arch/arm/include/asm/uaccess.h
+++ b/arch/arm/include/asm/uaccess.h
@@ -200,8 +200,8 @@ extern int __put_user_8(void *, unsigned long long);
 #define USER_DS                 KERNEL_DS
 
 #define segment_eq(a,b)         (1)
-#define __addr_ok(addr)         (1)
-#define __range_ok(addr,size)   (0)
+#define __addr_ok(addr)         ((void)(addr),1)
+#define __range_ok(addr,size)   ((void)(addr),0)
 #define get_fs()                (KERNEL_DS)
 
 static inline void set_fs(mm_segment_t fs)
diff --git a/arch/arm/kernel/irq.c b/arch/arm/kernel/irq.c
index 16cedb42c0c3..896165096d6a 100644
--- a/arch/arm/kernel/irq.c
+++ b/arch/arm/kernel/irq.c
@@ -34,6 +34,7 @@
 #include <linux/list.h>
 #include <linux/kallsyms.h>
 #include <linux/proc_fs.h>
+#include <linux/export.h>
 
 #include <asm/exception.h>
 #include <asm/mach/arch.h>