diff --git a/test/common_plat/validation/api/chksum/chksum.c b/test/common_plat/validation/api/chksum/chksum.c
index b05f3bf01..accf85647 100644
--- a/test/common_plat/validation/api/chksum/chksum.c
+++ b/test/common_plat/validation/api/chksum/chksum.c
@@ -77,6 +77,172 @@ struct udp_test_vect_s udp_test_vect[NUM_UDP] ODP_ALIGNED(4) = {
 	} }
 };
 
+/* Correct checksum in network byte order is 0xF3, 0x96 */
+#define UDP_LONG_CHKSUM odp_be_to_cpu_16(0xF396)
+
+/* Number of padding bytes in the end of the array */
+#define UDP_LONG_PADDING 11
+
+/* Long UDP packet with pseudo header. Checksum field is set to zero.
+ * The array contains padding, so that a possible overrun is more likely
+ * detected (overrun bytes are not all zeros). */
+uint8_t udp_test_vect_long[] ODP_ALIGNED(4) = {
+	0x00, 0x11, 0x05, 0xED, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x3F, 0x00, 0x3F, 0x05, 0xED, 0x00, 0x00,
+	0x0B, 0x2C, 0x9C, 0x06, 0x07, 0xF3, 0x51, 0x05, 0xF7, 0xA7,
+	0xF4, 0x24, 0xBB, 0x2F, 0x19, 0xBB, 0x23, 0xB4, 0x99, 0x50,
+	0x69, 0x10, 0x34, 0xAD, 0xFF, 0x83, 0x7B, 0x36, 0x8B, 0xA8,
+	0xEE, 0x7A, 0x31, 0xA8, 0x61, 0x08, 0x10, 0xAE, 0xA4, 0x84,
+	0x0F, 0x9B, 0x62, 0xFA, 0xD9, 0xFA, 0x4A, 0x71, 0x26, 0x36,
+	0x6D, 0xC4, 0x3D, 0x0A, 0xE7, 0xAD, 0xB6, 0x3A, 0xC2, 0x23,
+	0x85, 0x81, 0x17, 0xE6, 0x34, 0xCA, 0x76, 0x58, 0x70, 0xA3,
+	0x88, 0x8E, 0xC7, 0xEE, 0xF3, 0xA7, 0xB0, 0xD9, 0x7E, 0x5C,
+	0xCC, 0x11, 0x76, 0xD9, 0x6B, 0x33, 0x50, 0xCB, 0x52, 0x84,
+	0x8F, 0xBB, 0xBC, 0xE1, 0xE9, 0x9A, 0x9E, 0xF9, 0xA5, 0x9D,
+	0x2F, 0xB9, 0x47, 0x4B, 0xA8, 0x08, 0x6F, 0xD4, 0x48, 0xB5,
+	0xFF, 0xA4, 0x9C, 0xAD, 0x7C, 0x38, 0xFD, 0x72, 0xB7, 0x30,
+	0x5A, 0xC8, 0xAC, 0xA6, 0x38, 0xB2, 0xAA, 0xBF, 0xF6, 0x9C,
+	0xB4, 0x7F, 0x56, 0xDA, 0x28, 0xE2, 0x39, 0x51, 0x9E, 0x28,
+	0xAA, 0x74, 0x13, 0x70, 0x1E, 0x73, 0x47, 0x88, 0xFA, 0xAE,
+	0x63, 0x04, 0x56, 0x70, 0xDF, 0x8D, 0x01, 0xDA, 0xA3, 0x7C,
+	0xC5, 0x1D, 0x6C, 0xA8, 0xEC, 0xED, 0x72, 0x7B, 0x02, 0x32,
+	0x48, 0x4C, 0xDD, 0x00, 0x03, 0xE8, 0xDB, 0xC9, 0x9E, 0x72,
+	0x6B, 0xD1, 0x9D, 0x6E, 0xCF, 0xE3, 0xF1, 0x18, 0x20, 0x43,
+	0x1C, 0xFA, 0x92, 0xE3, 0x95, 0xBD, 0xF9, 0xD9, 0x6E, 0x40,
+	0x8C, 0x11, 0x34, 0xE7, 0xE9, 0x3F, 0x17, 0x36, 0x5A, 0x18,
+	0x4A, 0x9E, 0x57, 0xC2, 0xAD, 0x96, 0x4C, 0x89, 0xAA, 0xEE,
+	0x9C, 0xD3, 0x5C, 0x60, 0xE5, 0x56, 0xF7, 0x69, 0x86, 0x88,
+	0x64, 0x57, 0x5E, 0x57, 0x2B, 0xA2, 0xD7, 0x1B, 0x96, 0x7F,
+	0x23, 0xC9, 0x14, 0xB3, 0xC6, 0x69, 0xDB, 0xA5, 0x55, 0xCA,
+	0xD1, 0xB8, 0x7D, 0x74, 0xAD, 0xD7, 0x46, 0xDE, 0x59, 0x52,
+	0x99, 0xE1, 0x9B, 0xE8, 0x01, 0x6D, 0xF5, 0x25, 0xAE, 0x7B,
+	0xCA, 0xEE, 0xBF, 0x42, 0xC1, 0x5A, 0xC1, 0xAE, 0x6F, 0xC3,
+	0x72, 0x0E, 0x30, 0x1D, 0xCB, 0x0D, 0x55, 0x87, 0x3E, 0xE3,
+	0x85, 0x20, 0x3D, 0xCC, 0x5D, 0x1C, 0xFB, 0xB9, 0x5A, 0x17,
+	0x76, 0x46, 0xF9, 0xA8, 0xB5, 0xED, 0x1C, 0x3A, 0x4E, 0x79,
+	0xB0, 0x17, 0x2C, 0xBD, 0x8D, 0xC6, 0x8F, 0x85, 0x9D, 0x97,
+	0x54, 0xCD, 0x41, 0x7C, 0x77, 0x31, 0xF0, 0x1A, 0xD6, 0xA5,
+	0x22, 0x20, 0x38, 0x66, 0x6C, 0xD8, 0x8D, 0x31, 0xEC, 0xFC,
+	0x78, 0xB2, 0xE7, 0xCA, 0x0A, 0x3F, 0xB1, 0x5A, 0xD1, 0xC6,
+	0xCD, 0x30, 0x11, 0x04, 0x56, 0x0E, 0x51, 0xF8, 0x9D, 0x0B,
+	0x19, 0x98, 0x14, 0xE9, 0xFB, 0xC2, 0x6B, 0xA4, 0xD0, 0x75,
+	0xF8, 0x47, 0x44, 0x41, 0x5C, 0x03, 0x95, 0xFC, 0x64, 0x82,
+	0x97, 0xB7, 0x2D, 0x79, 0xFC, 0xF0, 0x8C, 0x7D, 0xD2, 0x0A,
+	0xAC, 0x17, 0x4D, 0xFA, 0xF9, 0x1A, 0xC7, 0x42, 0x3D, 0x34,
+	0x05, 0x23, 0x09, 0xC4, 0xBC, 0x0E, 0x57, 0xEB, 0x53, 0x5D,
+	0x6D, 0xE6, 0xEB, 0x40, 0x05, 0x9B, 0x9D, 0xFA, 0xAA, 0x71,
+	0x02, 0x4D, 0x65, 0x65, 0xF9, 0x32, 0x99, 0x5B, 0xA4, 0xCE,
+	0x2C, 0xB1, 0xB4, 0xA2, 0xE7, 0x1A, 0xE7, 0x02, 0x20, 0xAA,
+	0xCE, 0xC8, 0x96, 0x2D, 0xD4, 0x49, 0x9C, 0xBD, 0x7C, 0x88,
+	0x7A, 0x94, 0xEA, 0xAA, 0x10, 0x1E, 0xA5, 0xAA, 0xBC, 0x52,
+	0x9B, 0x4E, 0x7E, 0x43, 0x66, 0x5A, 0x5A, 0xF2, 0xCD, 0x03,
+	0xFE, 0x67, 0x8E, 0xA6, 0xA5, 0x00, 0x5B, 0xBA, 0x3B, 0x08,
+	0x22, 0x04, 0xC2, 0x8B, 0x91, 0x09, 0xF4, 0x69, 0xDA, 0xC9,
+	0x2A, 0xAA, 0xB3, 0xAA, 0x7C, 0x11, 0xA1, 0xB3, 0x2A, 0xF4,
+	0x77, 0xFA, 0x3B, 0x4B, 0x19, 0x60, 0x63, 0x06, 0x86, 0x7B,
+	0x2A, 0xA4, 0x16, 0xD4, 0x4B, 0x01, 0x00, 0x53, 0x5A, 0x6F,
+	0x1E, 0xF7, 0xAA, 0x09, 0xF5, 0xCA, 0x6E, 0x44, 0xF0, 0x15,
+	0x1E, 0xC7, 0xEC, 0xD0, 0x1D, 0x7D, 0xF9, 0x5C, 0x98, 0xE8,
+	0x5F, 0x75, 0xB1, 0xB8, 0xE0, 0x62, 0xDD, 0x9C, 0x3D, 0x6E,
+	0x8A, 0x58, 0xFC, 0x9C, 0x06, 0x18, 0x67, 0x97, 0x9C, 0x03,
+	0xD8, 0xE8, 0x00, 0x14, 0x34, 0x6B, 0xED, 0x25, 0xB6, 0x04,
+	0x0C, 0x4D, 0xEE, 0x8E, 0x18, 0x6C, 0x09, 0x14, 0x40, 0x04,
+	0x52, 0x44, 0xCC, 0x4B, 0xF9, 0x20, 0x04, 0x7E, 0x13, 0xF7,
+	0x4D, 0x77, 0xE3, 0x94, 0x96, 0x82, 0x58, 0xB5, 0xF2, 0x6D,
+	0xD6, 0xBF, 0x86, 0xDE, 0x3A, 0xAF, 0xA6, 0xE9, 0x18, 0x54,
+	0x3B, 0xE2, 0x46, 0xBC, 0x68, 0x70, 0x9F, 0xEC, 0x6D, 0xE3,
+	0x01, 0xD3, 0xCB, 0xC8, 0x98, 0x81, 0xA9, 0xBA, 0x5F, 0x95,
+	0x76, 0x7B, 0xE3, 0xF4, 0xD0, 0x43, 0x4B, 0xC1, 0xA4, 0x57,
+	0x95, 0x89, 0x97, 0xDE, 0x22, 0xBD, 0xA5, 0xF0, 0x75, 0x66,
+	0x08, 0xF1, 0x38, 0x14, 0x5C, 0x1D, 0x7F, 0x17, 0x00, 0x63,
+	0x51, 0xF2, 0xBF, 0x77, 0x65, 0x0D, 0xB0, 0x23, 0x29, 0xAA,
+	0x5A, 0xDE, 0x08, 0x1A, 0x1C, 0x9F, 0xED, 0x31, 0xCD, 0xF3,
+	0x03, 0xF7, 0x9F, 0x4E, 0xC0, 0xA0, 0x49, 0x9E, 0x21, 0xBF,
+	0x65, 0x26, 0x37, 0xB6, 0x16, 0x8A, 0xE2, 0x71, 0xEF, 0x26,
+	0xDD, 0x54, 0x10, 0xA4, 0xFA, 0x71, 0x92, 0xCE, 0xAF, 0xFF,
+	0x26, 0xA0, 0xD2, 0x07, 0xF8, 0xA2, 0xA1, 0x61, 0xDA, 0x75,
+	0x05, 0xDF, 0x9E, 0xAB, 0x18, 0xC8, 0xC3, 0xDC, 0xE4, 0x88,
+	0x55, 0xF5, 0x6E, 0xA5, 0x0E, 0xD4, 0xF3, 0xF5, 0xC1, 0x12,
+	0x71, 0x0F, 0xF9, 0x20, 0x69, 0xFF, 0xDD, 0x96, 0xE3, 0x3E,
+	0x56, 0xC7, 0xB4, 0xE1, 0x74, 0x99, 0xFC, 0x10, 0x0E, 0x94,
+	0xF2, 0xBA, 0xA9, 0x38, 0xE4, 0x87, 0x9B, 0x94, 0x79, 0x0E,
+	0x71, 0x14, 0x3A, 0x49, 0x8D, 0x9B, 0x50, 0x45, 0x14, 0xD1,
+	0x8F, 0x1E, 0x07, 0xBF, 0xB4, 0x2B, 0xAF, 0x99, 0xEB, 0x76,
+	0x3F, 0xDA, 0x95, 0x6F, 0xB5, 0x96, 0x47, 0xE1, 0x01, 0x0C,
+	0x16, 0x24, 0x69, 0x7C, 0x12, 0x95, 0x2C, 0x38, 0x10, 0x43,
+	0x65, 0xFC, 0xAD, 0xEB, 0x33, 0x82, 0x8F, 0x27, 0x17, 0x52,
+	0xEE, 0xE2, 0x9D, 0xD8, 0x53, 0x0F, 0x3F, 0xB8, 0xA0, 0x9A,
+	0x86, 0x66, 0x51, 0x9F, 0x72, 0xF1, 0x01, 0xDB, 0x1C, 0x1F,
+	0x30, 0x60, 0x9A, 0xBF, 0x43, 0x8C, 0x23, 0x3B, 0xCC, 0x3B,
+	0x73, 0x6D, 0x0C, 0x3C, 0x71, 0xB3, 0xB7, 0x02, 0x10, 0x46,
+	0xF6, 0x9C, 0x73, 0xC7, 0xB2, 0xE8, 0x54, 0x1B, 0x10, 0x03,
+	0xA6, 0x79, 0x38, 0x03, 0x79, 0xC1, 0x5B, 0xE9, 0x1F, 0x10,
+	0xF4, 0xD1, 0x8D, 0x91, 0x4E, 0x6C, 0x03, 0x96, 0x46, 0xB0,
+	0xF0, 0xE7, 0x52, 0xCE, 0x10, 0x59, 0xC2, 0x65, 0xD7, 0xA3,
+	0x46, 0xF5, 0x12, 0x6E, 0xB1, 0x96, 0xCC, 0xAB, 0xFC, 0xEA,
+	0x6E, 0x29, 0x8E, 0x50, 0x2B, 0x67, 0xBA, 0x5A, 0x9B, 0xA7,
+	0x8A, 0x82, 0xA6, 0x43, 0xBB, 0x18, 0xA4, 0x44, 0x08, 0x7F,
+	0xC2, 0x31, 0xAC, 0x99, 0xA8, 0x25, 0x22, 0x80, 0x59, 0x24,
+	0x2F, 0x77, 0x5A, 0xAF, 0x22, 0x20, 0x16, 0x96, 0x5B, 0xEF,
+	0x81, 0x0E, 0x0A, 0xDE, 0xFC, 0x03, 0x39, 0x62, 0x79, 0xB0,
+	0x0D, 0x9E, 0xDF, 0x6C, 0x48, 0xD7, 0xB0, 0xC7, 0x13, 0x29,
+	0xE9, 0xD5, 0xFB, 0x78, 0x29, 0xCA, 0x39, 0xA9, 0x16, 0xC7,
+	0x36, 0x11, 0xFC, 0xF4, 0x4E, 0x2D, 0xB8, 0xCF, 0xD4, 0x94,
+	0xD5, 0xC4, 0x57, 0x2B, 0xF4, 0xFD, 0x24, 0x98, 0x71, 0x7B,
+	0x0C, 0xF9, 0x43, 0x66, 0x68, 0xD5, 0x24, 0xA1, 0x5A, 0x52,
+	0xF3, 0xA2, 0x55, 0xA9, 0x56, 0x81, 0xDF, 0xD8, 0xA3, 0x4E,
+	0x95, 0x97, 0x01, 0xA8, 0x70, 0x8C, 0xCA, 0x8B, 0x48, 0xC2,
+	0x34, 0x6A, 0x96, 0x58, 0x31, 0x7E, 0x7E, 0x76, 0x93, 0x5D,
+	0x0D, 0x85, 0x74, 0xCE, 0xBF, 0xA0, 0xD5, 0xDC, 0x44, 0x45,
+	0x85, 0x29, 0x83, 0x51, 0x45, 0x85, 0xE0, 0x2B, 0x29, 0xBF,
+	0xBA, 0x3F, 0x41, 0xBB, 0x38, 0xAE, 0x79, 0xC5, 0x46, 0x43,
+	0xBE, 0x25, 0xDA, 0xAA, 0x62, 0xF4, 0x7C, 0xDC, 0xC2, 0x2E,
+	0x05, 0xDE, 0x26, 0x08, 0xA7, 0xAB, 0xE8, 0x83, 0x2D, 0x6F,
+	0xD9, 0x41, 0x84, 0xF5, 0xE0, 0x97, 0x7B, 0x63, 0xE4, 0xE5,
+	0xC7, 0x25, 0xEC, 0x22, 0x4A, 0x27, 0x85, 0xBB, 0x95, 0x47,
+	0x65, 0x9E, 0xAB, 0x0A, 0x4D, 0x91, 0x07, 0x8D, 0x34, 0xC9,
+	0xE1, 0xBF, 0xA1, 0xB8, 0xAE, 0xCE, 0x59, 0x26, 0xE6, 0xDF,
+	0x3A, 0x83, 0x09, 0x02, 0x67, 0x7C, 0xE4, 0x65, 0xA5, 0xCC,
+	0x11, 0xC8, 0x05, 0x55, 0xBD, 0x30, 0xC4, 0x6F, 0xAD, 0xE0,
+	0x6F, 0x80, 0x83, 0x85, 0x4A, 0xCD, 0x3E, 0xB1, 0xF3, 0x8F,
+	0x01, 0x8A, 0x43, 0x4A, 0x15, 0xC4, 0x75, 0x5A, 0x30, 0xCC,
+	0x8A, 0xCE, 0xF8, 0x46, 0xEB, 0x7A, 0xC3, 0xBA, 0x51, 0x48,
+	0xA1, 0x8A, 0xE2, 0xCF, 0x9C, 0x28, 0x9D, 0x27, 0x3E, 0x85,
+	0xF7, 0xFB, 0x54, 0xCD, 0xC6, 0xDF, 0xF2, 0x51, 0x5F, 0xE4,
+	0xB7, 0xC5, 0xFB, 0x6A, 0x52, 0xAB, 0x60, 0x36, 0x45, 0x0F,
+	0xBD, 0xC5, 0xE9, 0x75, 0xD5, 0xDF, 0xB3, 0x10, 0x5F, 0x6F,
+	0xB5, 0x34, 0xAD, 0x91, 0x68, 0x0E, 0x8D, 0xED, 0xA8, 0x93,
+	0x6D, 0x44, 0x00, 0xB6, 0xC2, 0x48, 0x28, 0xDE, 0xAA, 0xB1,
+	0xCC, 0x97, 0xCF, 0x8D, 0x8F, 0x87, 0x8F, 0xD7, 0x50, 0xA5,
+	0x5B, 0x4C, 0xAC, 0xA5, 0x5D, 0x7A, 0xC4, 0xB6, 0x5E, 0x1A,
+	0x40, 0x70, 0xE6, 0x9F, 0x94, 0x08, 0xA5, 0x0F, 0x81, 0xC7,
+	0x11, 0x12, 0xDF, 0xBA, 0x51, 0x49, 0x9B, 0xAA, 0x5A, 0xE0,
+	0xFC, 0x4E, 0x58, 0x67, 0x2A, 0xC0, 0x4F, 0xDD, 0xF0, 0x2E,
+	0x02, 0x0E, 0xC1, 0xD2, 0x14, 0x20, 0xF9, 0x24, 0x6D, 0x68,
+	0x66, 0x4E, 0xDF, 0x82, 0x07, 0xE0, 0x09, 0xA0, 0x13, 0xC5,
+	0x7C, 0x22, 0x3D, 0x76, 0x1D, 0x67, 0x37, 0x6D, 0xCB, 0xE3,
+	0x75, 0xDD, 0x41, 0x72, 0x33, 0xA0, 0x3D, 0xEC, 0xB9, 0x70,
+	0xE2, 0xFA, 0xDE, 0x5B, 0x5A, 0x28, 0xCB, 0x71, 0xC1, 0x3B,
+	0x01, 0xC0, 0x3E, 0xC4, 0x9E, 0x82, 0x73, 0xF5, 0xDB, 0x94,
+	0x18, 0xB4, 0xDA, 0x2A, 0xE2, 0xEE, 0x9F, 0xC2, 0xAA, 0x2E,
+	0x5C, 0x56, 0xCB, 0x6E, 0xF1, 0xD6, 0xCC, 0x2D, 0xB3, 0xD5,
+	0x3F, 0xC1, 0x6C, 0x83, 0xE8, 0xEF, 0xA4, 0xDB, 0x22, 0xB9,
+	0x1F, 0x1D, 0x7F, 0x77, 0xA7, 0x7F, 0xAF, 0x29, 0x0C, 0x1F,
+	0xA3, 0x0C, 0x68, 0x3D, 0xF1, 0x6B, 0xA7, 0xA7, 0x7B, 0xB8,
+	0x47, 0x74, 0x4C, 0xDB, 0x5D, 0xF5, 0xC2, 0xCA, 0xD9, 0xE9,
+	0xF2, 0x5A, 0x0A, 0xF0, 0x48, 0x55, 0x65, 0x43, 0x6E, 0xCC,
+	0x82, 0xA1, 0x6F, 0xAE, 0x67, 0x8D, 0x1D, 0x9A, 0x09, 0xB6,
+	0xB0, 0xF2, 0x10, 0xB7, 0xAF, 0x31, 0xDB, 0x00, 0x14, 0x7E,
+	0xC4, 0x14, 0xAB, 0x81, 0xA5, 0xF6, 0xBB, 0x75, 0x9B, 0xDD,
+	0xE8, 0x7E, 0x09, 0x2F, 0x58, 0x3D, 0xE0, 0xAD, 0x15, 0xA2,
+	0x1E, 0xEB, 0xB2, 0x02, 0x95, 0x04, 0x32, 0x6A, 0xEE, 0x8B,
+	0x25, 0x32, 0xED, 0xC5, 0x14, 0xD5, 0xF7, 0x15, 0x1F, 0x00,
+	0xD1, 0xB7, 0xE5, 0xE8, 0xAA, 0xB1, 0xA4, 0xE1, 0x5C, 0x07,
+	0xA1, 0x2D, 0xEF, 0x2F, 0xCB, 0x11, 0x5E, 0xC4, 0x9B, 0x2E,
+	0x9E, 0x7F, 0x3E, 0x0F, 0xDD, 0x62, 0xF6, 0xB3, 0xE2, 0xEE,
+	0xDE, 0xAD, 0xBE, 0xEF, 0xEE, 0xEE, 0xDE, 0xAD, 0xBE, 0xEF
+};
+
 /* Test ones complement sum with IPv4 headers */
 void chksum_ones_complement_ip(void)
 {
@@ -106,9 +272,52 @@ void chksum_ones_complement_udp(void)
 	}
 }
 
+/* Test ones complement sum with a long pseudo UDP packet */
+void chksum_ones_complement_udp_long(void)
+{
+	int i;
+	uint16_t sum, res;
+	uint32_t offset, frag_sum;
+	uint32_t len = sizeof(udp_test_vect_long) - UDP_LONG_PADDING;
+	int num_frag = 7;
+	uint32_t frag_len = len / num_frag;
+
+	/* Checksum all data */
+	sum = odp_chksum_ones_comp16(udp_test_vect_long, len);
+	res = ~sum;
+
+	CU_ASSERT(res == UDP_LONG_CHKSUM);
+
+	/* Checksum data in fragments */
+	frag_sum = 0;
+	offset = 0;
+
+	for (i = 0; i < num_frag; i++) {
+		if (i == num_frag - 1)
+			frag_len = len - offset;
+
+		/* Check that test passes 16 bit aligned addresses */
+		CU_ASSERT_FATAL((offset % 2) == 0);
+
+		frag_sum += odp_chksum_ones_comp16(&udp_test_vect_long[offset],
+						   frag_len);
+
+		offset += frag_len;
+	}
+
+	/* Fold 32-bit sum to 16 bits */
+	while (frag_sum >> 16)
+		frag_sum = (frag_sum & 0xffff) + (frag_sum >> 16);
+
+	res = ~frag_sum;
+
+	CU_ASSERT(res == UDP_LONG_CHKSUM);
+}
+
 odp_testinfo_t chksum_suite[] = {
 	ODP_TEST_INFO(chksum_ones_complement_ip),
 	ODP_TEST_INFO(chksum_ones_complement_udp),
+	ODP_TEST_INFO(chksum_ones_complement_udp_long),
 	ODP_TEST_INFO_NULL,
 };
 
diff --git a/test/common_plat/validation/api/chksum/chksum.h b/test/common_plat/validation/api/chksum/chksum.h
index 886f15c28..50ed66ee9 100644
--- a/test/common_plat/validation/api/chksum/chksum.h
+++ b/test/common_plat/validation/api/chksum/chksum.h
@@ -12,6 +12,7 @@
 /* test functions: */
 void chksum_ones_complement_ip(void);
 void chksum_ones_complement_udp(void);
+void chksum_ones_complement_udp_long(void);
 
 /* test arrays: */
 extern odp_testinfo_t chksum_suite[];
