xz: Enable BCJ filters on SPARC and 32-bit x86

The BCJ filters were meant to be enabled already on these
archs, but the xz_wrap.sh script was buggy. Enabling the
filters should give smaller kernel images.

xz_wrap.sh will now use $SRCARCH instead of $ARCH to detect
the architecture. That way it doesn't need to care about the
subarchs (like i386 vs. x86_64) since the BCJ filters don't
care either.

Signed-off-by: Lasse Collin <lasse.collin@tukaani.org>
Acked-by: Jan Beulich <jbeulich@suse.com>
Acked-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 2 insertions, 2 deletions

diff --git a/scripts/xz_wrap.sh b/scripts/xz_wrap.sh
index 17a5798c29da..7a2d372f4885 100644
--- a/scripts/xz_wrap.sh
+++ b/scripts/xz_wrap.sh
@@ -12,8 +12,8 @@
 BCJ=
 LZMA2OPTS=
 
-case $ARCH in
-        x86|x86_64)     BCJ=--x86 ;;
+case $SRCARCH in
+        x86)            BCJ=--x86 ;;
         powerpc)        BCJ=--powerpc ;;
         ia64)           BCJ=--ia64; LZMA2OPTS=pb=4 ;;
         arm)            BCJ=--arm ;;