diff --git a/arch/x86/crypto/cast5-avx-x86_64-asm_64.S b/arch/x86/crypto/cast5-avx-x86_64-asm_64.S
index b4e460a87f18..fb95a614249d 100644
--- a/arch/x86/crypto/cast5-avx-x86_64-asm_64.S
+++ b/arch/x86/crypto/cast5-avx-x86_64-asm_64.S
@@ -487,79 +487,3 @@ SYM_FUNC_START(cast5_cbc_dec_16way)
 	FRAME_END
 	RET;
 SYM_FUNC_END(cast5_cbc_dec_16way)
-
-SYM_FUNC_START(cast5_ctr_16way)
-	/* input:
-	 *	%rdi: ctx
-	 *	%rsi: dst
-	 *	%rdx: src
-	 *	%rcx: iv (big endian, 64bit)
-	 */
-	FRAME_BEGIN
-	pushq %r12;
-	pushq %r15;
-
-	movq %rdi, CTX;
-	movq %rsi, %r11;
-	movq %rdx, %r12;
-
-	vpcmpeqd RTMP, RTMP, RTMP;
-	vpsrldq $8, RTMP, RTMP; /* low: -1, high: 0 */
-
-	vpcmpeqd RKR, RKR, RKR;
-	vpaddq RKR, RKR, RKR; /* low: -2, high: -2 */
-	vmovdqa .Lbswap_iv_mask(%rip), R1ST;
-	vmovdqa .Lbswap128_mask(%rip), RKM;
-
-	/* load IV and byteswap */
-	vmovq (%rcx), RX;
-	vpshufb R1ST, RX, RX;
-
-	/* construct IVs */
-	vpsubq RTMP, RX, RX;  /* le: IV1, IV0 */
-	vpshufb RKM, RX, RL1; /* be: IV0, IV1 */
-	vpsubq RKR, RX, RX;
-	vpshufb RKM, RX, RR1; /* be: IV2, IV3 */
-	vpsubq RKR, RX, RX;
-	vpshufb RKM, RX, RL2; /* be: IV4, IV5 */
-	vpsubq RKR, RX, RX;
-	vpshufb RKM, RX, RR2; /* be: IV6, IV7 */
-	vpsubq RKR, RX, RX;
-	vpshufb RKM, RX, RL3; /* be: IV8, IV9 */
-	vpsubq RKR, RX, RX;
-	vpshufb RKM, RX, RR3; /* be: IV10, IV11 */
-	vpsubq RKR, RX, RX;
-	vpshufb RKM, RX, RL4; /* be: IV12, IV13 */
-	vpsubq RKR, RX, RX;
-	vpshufb RKM, RX, RR4; /* be: IV14, IV15 */
-
-	/* store last IV */
-	vpsubq RTMP, RX, RX; /* le: IV16, IV14 */
-	vpshufb R1ST, RX, RX; /* be: IV16, IV16 */
-	vmovq RX, (%rcx);
-
-	call __cast5_enc_blk16;
-
-	/* dst = src ^ iv */
-	vpxor (0*16)(%r12), RR1, RR1;
-	vpxor (1*16)(%r12), RL1, RL1;
-	vpxor (2*16)(%r12), RR2, RR2;
-	vpxor (3*16)(%r12), RL2, RL2;
-	vpxor (4*16)(%r12), RR3, RR3;
-	vpxor (5*16)(%r12), RL3, RL3;
-	vpxor (6*16)(%r12), RR4, RR4;
-	vpxor (7*16)(%r12), RL4, RL4;
-	vmovdqu RR1, (0*16)(%r11);
-	vmovdqu RL1, (1*16)(%r11);
-	vmovdqu RR2, (2*16)(%r11);
-	vmovdqu RL2, (3*16)(%r11);
-	vmovdqu RR3, (4*16)(%r11);
-	vmovdqu RL3, (5*16)(%r11);
-	vmovdqu RR4, (6*16)(%r11);
-	vmovdqu RL4, (7*16)(%r11);
-
-	popq %r15;
-	popq %r12;
-	FRAME_END
-	RET;
-SYM_FUNC_END(cast5_ctr_16way)