[PATCH v2 05/17] crypto: arm/aes-neonbs - replace tweak mask literal with composition

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Replace the vector load from memory sequence with a simple instruction
sequence to compose the tweak vector directly.

Signed-off-by: Ard Biesheuvel <ard.biesheuvel@xxxxxxxxxx>
---
 arch/arm/crypto/aes-neonbs-core.S | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/arch/arm/crypto/aes-neonbs-core.S b/arch/arm/crypto/aes-neonbs-core.S
index d3eab76b6e1b..bb75918e4984 100644
--- a/arch/arm/crypto/aes-neonbs-core.S
+++ b/arch/arm/crypto/aes-neonbs-core.S
@@ -887,10 +887,6 @@ ENDPROC(aesbs_ctr_encrypt)
 	veor		\out, \out, \tmp
 	.endm
 
-	.align		4
-.Lxts_mul_x:
-	.quad		1, 0x87
-
 	/*
 	 * aesbs_xts_encrypt(u8 out[], u8 const in[], u8 const rk[], int rounds,
 	 *		     int blocks, u8 iv[])
@@ -899,7 +895,9 @@ ENDPROC(aesbs_ctr_encrypt)
 	 */
 __xts_prepare8:
 	vld1.8		{q14}, [r7]		// load iv
-	__ldr		q15, .Lxts_mul_x	// load tweak mask
+	vmov.i32	d30, #0x87		// compose tweak mask vector
+	vmovl.u32	q15, d30
+	vshr.u64	d30, d31, #7
 	vmov		q12, q14
 
 	__adr		ip, 0f
-- 
2.17.1




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