raid6: test: only check for Altivec if building on powerpc hosts

Altivec is only available for powerpc hosts, so only check for its
availability when the host is powerpc, to avoid error messages being
shown on architectures other than x86, arm or powerpc.

Signed-off-by: WANG Xuerui <git@xen0n.name>
Link: https://lore.kernel.org/r/20230731104911.411964-6-kernel@xen0n.name
Signed-off-by: Song Liu <song@kernel.org>

diff --git a/lib/raid6/test/Makefile b/lib/raid6/test/Makefile
index 143cda60faa12c70ddd70796d0f64c9af77ae3e8..1f693ea3b980cef7f229ba19c5a794d4e24377b8 100644 (file)
--- a/lib/raid6/test/Makefile
+++ b/lib/raid6/test/Makefile
@@ -35,6 +35,12 @@ ifeq ($(ARCH),aarch64)
         HAS_NEON = yes
 endif
 
+ifeq ($(findstring ppc,$(ARCH)),ppc)
+        CFLAGS += -I../../../arch/powerpc/include
+        HAS_ALTIVEC := $(shell printf '$(pound)include <altivec.h>\nvector int a;\n' |\
+                         gcc -c -x c - >/dev/null && rm ./-.o && echo yes)
+endif
+
 ifeq ($(IS_X86),yes)
         OBJS   += mmx.o sse1.o sse2.o avx2.o recov_ssse3.o recov_avx2.o avx512.o recov_avx512.o
         CFLAGS += -DCONFIG_X86
@@ -44,15 +50,10 @@ ifeq ($(IS_X86),yes)
 else ifeq ($(HAS_NEON),yes)
         OBJS   += neon.o neon1.o neon2.o neon4.o neon8.o recov_neon.o recov_neon_inner.o
         CFLAGS += -DCONFIG_KERNEL_MODE_NEON=1
-else
-        HAS_ALTIVEC := $(shell printf '$(pound)include <altivec.h>\nvector int a;\n' |\
-                         gcc -c -x c - >/dev/null && rm ./-.o && echo yes)
-        ifeq ($(HAS_ALTIVEC),yes)
-                CFLAGS += -I../../../arch/powerpc/include
-                CFLAGS += -DCONFIG_ALTIVEC
-                OBJS += altivec1.o altivec2.o altivec4.o altivec8.o \
-                        vpermxor1.o vpermxor2.o vpermxor4.o vpermxor8.o
-        endif
+else ifeq ($(HAS_ALTIVEC),yes)
+        CFLAGS += -DCONFIG_ALTIVEC
+        OBJS += altivec1.o altivec2.o altivec4.o altivec8.o \
+                vpermxor1.o vpermxor2.o vpermxor4.o vpermxor8.o
 endif
 
 .c.o: