-/* JTAG buffers to host, be and le buffers, flipping variants */
-int arm_jtag_buf_to_u32_flip(u8 *in_buf, void *priv, struct scan_field_s *field);
-int arm_jtag_buf_to_le32_flip(u8 *in_buf, void *priv, struct scan_field_s *field);
-int arm_jtag_buf_to_le16_flip(u8 *in_buf, void *priv, struct scan_field_s *field);
-int arm_jtag_buf_to_be32_flip(u8 *in_buf, void *priv, struct scan_field_s *field);
-int arm_jtag_buf_to_be16_flip(u8 *in_buf, void *priv, struct scan_field_s *field);
-int arm_jtag_buf_to_8_flip(u8 *in_buf, void *priv, struct scan_field_s *field);
+int arm_jtag_scann_inner(struct arm_jtag *jtag_info, uint32_t new_scan_chain, tap_state_t end_state);
+static inline int arm_jtag_scann(struct arm_jtag *jtag_info, uint32_t new_scan_chain, tap_state_t end_state)
+{
+ /* inline most common code path */
+ int retval = ERROR_OK;
+ if (jtag_info->cur_scan_chain != new_scan_chain)
+ return arm_jtag_scann_inner(jtag_info, new_scan_chain, end_state);