ipc: use Kconfig options for __ARCH_WANT_[COMPAT_]IPC_PARSE_VERSION

Rather than #define the options manually in the architecture code, add
Kconfig options for them and select them there instead.  This also allows
us to select the compat IPC version parsing automatically for platforms
using the old compat IPC interface.

Reported-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Chris Metcalf <cmetcalf@tilera.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

2 files changed, 1 insertions, 1 deletions

diff --git a/arch/alpha/Kconfig b/arch/alpha/Kconfig
index 3de74c9f9610..d5b9b5e645cc 100644
--- a/arch/alpha/Kconfig
+++ b/arch/alpha/Kconfig
@@ -14,6 +14,7 @@ config ALPHA
         select AUTO_IRQ_AFFINITY if SMP
         select GENERIC_IRQ_SHOW
         select ARCH_WANT_OPTIONAL_GPIOLIB
+        select ARCH_WANT_IPC_PARSE_VERSION
         select ARCH_HAVE_NMI_SAFE_CMPXCHG
         select GENERIC_SMP_IDLE_THREAD
         select GENERIC_CMOS_UPDATE
diff --git a/arch/alpha/include/asm/unistd.h b/arch/alpha/include/asm/unistd.h
index d1f23b722df4..633b23b0664a 100644
--- a/arch/alpha/include/asm/unistd.h
+++ b/arch/alpha/include/asm/unistd.h
@@ -470,7 +470,6 @@
 
 #define NR_SYSCALLS                     504
 
-#define __ARCH_WANT_IPC_PARSE_VERSION
 #define __ARCH_WANT_OLD_READDIR
 #define __ARCH_WANT_STAT64
 #define __ARCH_WANT_SYS_GETHOSTNAME