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diff --git a/examples/ip_pipeline/hash_func_arm64.h b/examples/ip_pipeline/hash_func_arm64.h
deleted file mode 100644
index 50df8167..00000000
--- a/examples/ip_pipeline/hash_func_arm64.h
+++ /dev/null
@@ -1,232 +0,0 @@
-/* SPDX-License-Identifier: BSD-3-Clause
- * Copyright(c) 2017-2018 Linaro Limited.
- */
-#ifndef __HASH_FUNC_ARM64_H__
-#define __HASH_FUNC_ARM64_H__
-
-#define _CRC32CX(crc, val)	\
-	__asm__("crc32cx %w[c], %w[c], %x[v]":[c] "+r" (crc):[v] "r" (val))
-
-static inline uint64_t
-hash_crc_key8(void *key, void *mask, __rte_unused uint32_t key_size,
-	uint64_t seed)
-{
-	uint64_t *k = key;
-	uint64_t *m = mask;
-	uint32_t crc0;
-
-	crc0 = seed;
-	_CRC32CX(crc0, k[0] & m[0]);
-
-	return crc0;
-}
-
-static inline uint64_t
-hash_crc_key16(void *key, void *mask, __rte_unused uint32_t key_size,
-	uint64_t seed)
-{
-	uint64_t *k = key, k0;
-	uint64_t *m = mask;
-	uint32_t crc0, crc1;
-
-	k0 = k[0] & m[0];
-
-	crc0 = k0;
-	_CRC32CX(crc0, seed);
-	crc1 = k0 >> 32;
-	_CRC32CX(crc1, k[1] & m[1]);
-
-	crc0 ^= crc1;
-
-	return crc0;
-}
-
-static inline uint64_t
-hash_crc_key24(void *key, void *mask, __rte_unused uint32_t key_size,
-	uint64_t seed)
-{
-	uint64_t *k = key, k0, k2;
-	uint64_t *m = mask;
-	uint32_t crc0, crc1;
-
-	k0 = k[0] & m[0];
-	k2 = k[2] & m[2];
-
-	crc0 = k0;
-	_CRC32CX(crc0, seed);
-	crc1 = k0 >> 32;
-	_CRC32CX(crc1, k[1] & m[1]);
-
-	_CRC32CX(crc0, k2);
-
-	crc0 ^= crc1;
-
-	return crc0;
-}
-
-static inline uint64_t
-hash_crc_key32(void *key, void *mask, __rte_unused uint32_t key_size,
-	uint64_t seed)
-{
-	uint64_t *k = key, k0, k2;
-	uint64_t *m = mask;
-	uint32_t crc0, crc1, crc2, crc3;
-
-	k0 = k[0] & m[0];
-	k2 = k[2] & m[2];
-
-	crc0 = k0;
-	_CRC32CX(crc0, seed);
-	crc1 = k0 >> 32;
-	_CRC32CX(crc1, k[1] & m[1]);
-
-	crc2 = k2;
-	_CRC32CX(crc2, k[3] & m[3]);
-	crc3 = k2 >> 32;
-
-	_CRC32CX(crc0, crc1);
-	_CRC32CX(crc2, crc3);
-
-	crc0 ^= crc2;
-
-	return crc0;
-}
-
-static inline uint64_t
-hash_crc_key40(void *key, void *mask, __rte_unused uint32_t key_size,
-	uint64_t seed)
-{
-	uint64_t *k = key, k0, k2;
-	uint64_t *m = mask;
-	uint32_t crc0, crc1, crc2, crc3;
-
-	k0 = k[0] & m[0];
-	k2 = k[2] & m[2];
-
-	crc0 = k0;
-	_CRC32CX(crc0, seed);
-	crc1 = k0 >> 32;
-	_CRC32CX(crc1, k[1] & m[1]);
-
-	crc2 = k2;
-	_CRC32CX(crc2, k[3] & m[3]);
-	crc3 = k2 >> 32;
-	_CRC32CX(crc3, k[4] & m[4]);
-
-	_CRC32CX(crc0, crc1);
-	_CRC32CX(crc2, crc3);
-
-	crc0 ^= crc2;
-
-	return crc0;
-}
-
-static inline uint64_t
-hash_crc_key48(void *key, void *mask, __rte_unused uint32_t key_size,
-	uint64_t seed)
-{
-	uint64_t *k = key, k0, k2, k5;
-	uint64_t *m = mask;
-	uint32_t crc0, crc1, crc2, crc3;
-
-	k0 = k[0] & m[0];
-	k2 = k[2] & m[2];
-	k5 = k[5] & m[5];
-
-	crc0 = k0;
-	_CRC32CX(crc0, seed);
-	crc1 = k0 >> 32;
-	_CRC32CX(crc1, k[1] & m[1]);
-
-	crc2 = k2;
-	_CRC32CX(crc2, k[3] & m[3]);
-	crc3 = k2 >> 32;
-	_CRC32CX(crc3, k[4] & m[4]);
-
-	_CRC32CX(crc0, ((uint64_t)crc1 << 32) ^ crc2);
-	_CRC32CX(crc3, k5);
-
-	crc0 ^= crc3;
-
-	return crc0;
-}
-
-static inline uint64_t
-hash_crc_key56(void *key, void *mask, __rte_unused uint32_t key_size,
-	uint64_t seed)
-{
-	uint64_t *k = key, k0, k2, k5;
-	uint64_t *m = mask;
-	uint32_t crc0, crc1, crc2, crc3, crc4, crc5;
-
-	k0 = k[0] & m[0];
-	k2 = k[2] & m[2];
-	k5 = k[5] & m[5];
-
-	crc0 = k0;
-	_CRC32CX(crc0, seed);
-	crc1 = k0 >> 32;
-	_CRC32CX(crc1, k[1] & m[1]);
-
-	crc2 = k2;
-	_CRC32CX(crc2, k[3] & m[3]);
-	crc3 = k2 >> 32;
-	_CRC32CX(crc3, k[4] & m[4]);
-
-	crc4 = k5;
-	 _CRC32CX(crc4, k[6] & m[6]);
-	crc5 = k5 >> 32;
-
-	_CRC32CX(crc0, ((uint64_t)crc1 << 32) ^ crc2);
-	_CRC32CX(crc3, ((uint64_t)crc4 << 32) ^ crc5);
-
-	crc0 ^= crc3;
-
-	return crc0;
-}
-
-static inline uint64_t
-hash_crc_key64(void *key, void *mask, __rte_unused uint32_t key_size,
-	uint64_t seed)
-{
-	uint64_t *k = key, k0, k2, k5;
-	uint64_t *m = mask;
-	uint32_t crc0, crc1, crc2, crc3, crc4, crc5;
-
-	k0 = k[0] & m[0];
-	k2 = k[2] & m[2];
-	k5 = k[5] & m[5];
-
-	crc0 = k0;
-	_CRC32CX(crc0, seed);
-	crc1 = k0 >> 32;
-	_CRC32CX(crc1, k[1] & m[1]);
-
-	crc2 = k2;
-	_CRC32CX(crc2, k[3] & m[3]);
-	crc3 = k2 >> 32;
-	_CRC32CX(crc3, k[4] & m[4]);
-
-	crc4 = k5;
-	 _CRC32CX(crc4, k[6] & m[6]);
-	crc5 = k5 >> 32;
-	_CRC32CX(crc5, k[7] & m[7]);
-
-	_CRC32CX(crc0, ((uint64_t)crc1 << 32) ^ crc2);
-	_CRC32CX(crc3, ((uint64_t)crc4 << 32) ^ crc5);
-
-	crc0 ^= crc3;
-
-	return crc0;
-}
-
-#define hash_default_key8			hash_crc_key8
-#define hash_default_key16			hash_crc_key16
-#define hash_default_key24			hash_crc_key24
-#define hash_default_key32			hash_crc_key32
-#define hash_default_key40			hash_crc_key40
-#define hash_default_key48			hash_crc_key48
-#define hash_default_key56			hash_crc_key56
-#define hash_default_key64			hash_crc_key64
-
-#endif