crypto: arm64/aes-neonbs - replace tweak mask literal with composition (7a3b1c6e) · Commits · 戴 / test

Replace the vector load from memory sequence with a simple instruction sequence to compose the tweak vector directly. Signed-off-by:

arch/arm64/crypto/aes-neonbs-core.S

+3 −6

Original line number	Diff line number	Diff line
		@@ -730,11 +730,6 @@ ENDPROC(aesbs_cbc_decrypt)
		eor \out\().16b, \out\().16b, \tmp\().16b
		.endm

		.align 4
		.Lxts_mul_x:
		CPU_LE( .quad 1, 0x87 )
		CPU_BE( .quad 0x87, 1 )

		/*
		* aesbs_xts_encrypt(u8 out[], u8 const in[], u8 const rk[], int rounds,
		* int blocks, u8 iv[])
		@@ -806,7 +801,9 @@ ENDPROC(__xts_crypt8)
		mov x23, x4
		mov x24, x5

		0: ldr q30, .Lxts_mul_x
		0: movi v30.2s, #0x1
		movi v25.2s, #0x87
		uzp1 v30.4s, v30.4s, v25.4s
		ld1 {v25.16b}, [x24]

		99: adr x7, \do8