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| author | Ard Biesheuvel <ard.biesheuvel@linaro.org> | 2013-09-09 16:08:38 +0200 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2013-09-09 16:24:47 +0200 |
| commit | 9319206d712a5462b93870c38144a7c9a452d392 (patch) | |
| tree | 649ad8e2fbed094eac854b3a29965add42730de3 /arch/arm/lib | |
| parent | vfs: fix dentry RCU to refcounting possibly sleeping dput() (diff) | |
| download | linux-9319206d712a5462b93870c38144a7c9a452d392.tar.xz linux-9319206d712a5462b93870c38144a7c9a452d392.zip | |
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/Makefile | 2 | ||||
| -rw-r--r-- | arch/arm/lib/xor-neon.c | 4 |
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); |