[PATCH 3.16 007/370] crypto: arm64/aes-xts-ce: fix for big endian

Ben Hutchings
2017-03-10T14:27:02Z

From: Ard Biesheuvel <ard.biesheuvel@linaro.org>

commit caf4b9e2b326cc2a5005a5c557274306536ace61 upstream.

Emit the XTS tweak literal constants in the appropriate order for a
single 128-bit scalar literal load.

Fixes: 49788fe2a128 ("arm64/crypto: AES-ECB/CBC/CTR/XTS using ARMv8 NEON and Crypto Extensions")
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
arch/arm64/crypto/aes-ce.S | 1 +
arch/arm64/crypto/aes-modes.S | 3 ++-
2 files changed, 3 insertions(+), 1 deletion(-)

--- a/arch/arm64/crypto/aes-ce.S
+++ b/arch/arm64/crypto/aes-ce.S
@@ -10,6 +10,7 @@
*/

#include <linux/linkage.h>
+#include <asm/assembler.h>

#define AES_ENTRY(func) ENTRY(ce_ ## func)
#define AES_ENDPROC(func) ENDPROC(ce_ ## func)
--- a/arch/arm64/crypto/aes-modes.S
+++ b/arch/arm64/crypto/aes-modes.S
@@ -386,7 +386,8 @@ AES_ENDPROC(aes_ctr_encrypt)
.endm

.Lxts_mul_x:
- .word 1, 0, 0x87, 0
+CPU_LE( .quad 1, 0x87 )
+CPU_BE( .quad 0x87, 1 )

AES_ENTRY(aes_xts_encrypt)
FRAME_PUSH