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authorArd Biesheuvel <ard.biesheuvel@linaro.org>2013-09-09 15:08:38 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2013-09-09 15:24:47 +0100
commit9319206d712a5462b93870c38144a7c9a452d392 (patch)
tree649ad8e2fbed094eac854b3a29965add42730de3 /arch/arm/lib
parente5c832d5558826cc6e9a24746cfdec8e7780063a (diff)
downloadlinux-linaro-stable-9319206d712a5462b93870c38144a7c9a452d392.tar.gz
ARM: 7835/2: fix modular build of xor_blocks() with NEON enabled
Commit 0195659 introduced a NEON accelerated version of the xor_blocks() function, but it needs the changes in this patch to allow it to be built as a module rather than statically into the kernel. This patch creates a separate module xor-neon.ko which exports the NEON inner xor_blocks() functions depended upon by the regular xor.ko if it is built with CONFIG_KERNEL_MODE_NEON=y Reported-by: Josh Boyer <jwboyer@fedoraproject.org> Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/lib')
-rw-r--r--arch/arm/lib/Makefile2
-rw-r--r--arch/arm/lib/xor-neon.c4
2 files changed, 5 insertions, 1 deletions
diff --git a/arch/arm/lib/Makefile b/arch/arm/lib/Makefile
index aaf3a8731136..bd454b09133e 100644
--- a/arch/arm/lib/Makefile
+++ b/arch/arm/lib/Makefile
@@ -49,5 +49,5 @@ $(obj)/csumpartialcopyuser.o: $(obj)/csumpartialcopygeneric.S
ifeq ($(CONFIG_KERNEL_MODE_NEON),y)
NEON_FLAGS := -mfloat-abi=softfp -mfpu=neon
CFLAGS_xor-neon.o += $(NEON_FLAGS)
- lib-$(CONFIG_XOR_BLOCKS) += xor-neon.o
+ obj-$(CONFIG_XOR_BLOCKS) += xor-neon.o
endif
diff --git a/arch/arm/lib/xor-neon.c b/arch/arm/lib/xor-neon.c
index f485e5a2af4b..2c40aeab3eaa 100644
--- a/arch/arm/lib/xor-neon.c
+++ b/arch/arm/lib/xor-neon.c
@@ -9,6 +9,9 @@
*/
#include <linux/raid/xor.h>
+#include <linux/module.h>
+
+MODULE_LICENSE("GPL");
#ifndef __ARM_NEON__
#error You should compile this file with '-mfloat-abi=softfp -mfpu=neon'
@@ -40,3 +43,4 @@ struct xor_block_template const xor_block_neon_inner = {
.do_4 = xor_8regs_4,
.do_5 = xor_8regs_5,
};
+EXPORT_SYMBOL(xor_block_neon_inner);