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| author | Sandy Wu <sandyw@twitter.com> | 2013-03-28 17:05:44 -0700 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2013-04-25 21:01:44 +0800 |
| commit | 57ae1b0532977b30184aaba04b6cafe0a284c21f (patch) | |
| tree | 5299cd9942ee35d3307b83ebc267d83d3e0067f8 | |
| parent | 8c4196a2fd7c31acd6d02d9921f7896b8f160c92 (diff) | |
| download | op-kernel-dev-57ae1b0532977b30184aaba04b6cafe0a284c21f.zip op-kernel-dev-57ae1b0532977b30184aaba04b6cafe0a284c21f.tar.gz | |
crypto: crc32-pclmul - Use gas macro for pclmulqdq
Occurs when CONFIG_CRYPTO_CRC32C_INTEL=y and CONFIG_CRYPTO_CRC32C_INTEL=y.
Older versions of bintuils do not support the pclmulqdq instruction. The
PCLMULQDQ gas macro is used instead.
Signed-off-by: Sandy Wu <sandyw@twitter.com>
Cc: stable@vger.kernel.org # 3.8+
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
| -rw-r--r-- | arch/x86/crypto/crc32c-pcl-intel-asm_64.S | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/arch/x86/crypto/crc32c-pcl-intel-asm_64.S b/arch/x86/crypto/crc32c-pcl-intel-asm_64.S index 19ec73f..dbc4339 100644 --- a/arch/x86/crypto/crc32c-pcl-intel-asm_64.S +++ b/arch/x86/crypto/crc32c-pcl-intel-asm_64.S @@ -43,6 +43,7 @@ * SOFTWARE. */ +#include <asm/inst.h> #include <linux/linkage.h> ## ISCSI CRC 32 Implementation with crc32 and pclmulqdq Instruction @@ -226,10 +227,10 @@ LABEL crc_ %i movdqa (bufp), %xmm0 # 2 consts: K1:K2 movq crc_init, %xmm1 # CRC for block 1 - pclmulqdq $0x00,%xmm0,%xmm1 # Multiply by K2 + PCLMULQDQ 0x00,%xmm0,%xmm1 # Multiply by K2 movq crc1, %xmm2 # CRC for block 2 - pclmulqdq $0x10, %xmm0, %xmm2 # Multiply by K1 + PCLMULQDQ 0x10, %xmm0, %xmm2 # Multiply by K1 pxor %xmm2,%xmm1 movq %xmm1, %rax |
