[PATCH] tiny: Make *[ug]id16 support optional

Configurable 16-bit UID and friends support

This allows turning off the legacy 16 bit UID interfaces on embedded platforms.

   text    data     bss     dec     hex filename
3330172  529036  190556 4049764  3dcb64 vmlinux-baseline
3328268  529040  190556 4047864  3dc3f8 vmlinux

From: Adrian Bunk <bunk@stusta.de>

    UID16 was accidentially disabled for !EMBEDDED.

Signed-off-by: Matt Mackall <mpm@selenic.com>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 9 insertions, 0 deletions

diff --git a/init/Kconfig b/init/Kconfig
index 0eb65f2ad8c9..1a1f114a37e8 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -228,6 +228,15 @@ config CPUSETS
 
 source "usr/Kconfig"
 
+config UID16
+        bool "Enable 16-bit UID system calls" if EMBEDDED
+        depends !ALPHA && !PPC && !PPC64 && !PARISC && !V850 && !ARCH_S390X
+        depends !X86_64 || IA32_EMULATION
+        depends !SPARC64 || SPARC32_COMPAT
+        default y
+        help
+          This enables the legacy 16-bit UID syscall wrappers.
+
 config CC_OPTIMIZE_FOR_SIZE
         bool "Optimize for size (Look out for broken compilers!)"
         default y