channel = (u_short) (save_xir & CyIRChannel);
                i = channel + chip * 4 + cinfo->first_line;
                info = &cy_port[i];
-               info->last_active = jiffies;
                save_car = readb(base_addr + (CyCAR << index));
                cy_writeb(base_addr + (CyCAR << index), save_xir);
 
                        goto txend;
                }
                info = &cy_port[i];
-               info->last_active = jiffies;
                if (info->tty == 0) {
                        cy_writeb(base_addr + (CySRER << index),
                                  readb(base_addr + (CySRER << index)) &
                save_xir = (u_char) readb(base_addr + (CyMIR << index));
                channel = (u_short) (save_xir & CyIRChannel);
                info = &cy_port[channel + chip * 4 + cinfo->first_line];
-               info->last_active = jiffies;
                save_car = readb(base_addr + (CyCAR << index));
                cy_writeb(base_addr + (CyCAR << index), save_xir);
 
                char_count = rx_put - rx_get + rx_bufsize;
 
        if (char_count) {
-               info->last_active = jiffies;
-               info->jiffies[1] = jiffies;
-
 #ifdef CY_ENABLE_MONITORING
                info->mon.int_count++;
                info->mon.char_count += char_count;
                        info->x_char = 0;
                        char_count--;
                        info->icount.tx++;
-                       info->last_active = jiffies;
-                       info->jiffies[2] = jiffies;
                }
 #ifdef BLOCKMOVE
                while (0 < (small_count = min_t(unsigned int,
                        info->xmit_cnt -= small_count;
                        info->xmit_tail = (info->xmit_tail + small_count) &
                                        (SERIAL_XMIT_SIZE - 1);
-                       info->last_active = jiffies;
-                       info->jiffies[2] = jiffies;
                }
 #else
                while (info->xmit_cnt && char_count) {
                        tx_put = (tx_put + 1) & (tx_bufsize - 1);
                        char_count--;
                        info->icount.tx++;
-                       info->last_active = jiffies;
-                       info->jiffies[2] = jiffies;
                }
 #endif
 ztxdone:
 
        int                     close_delay;
        unsigned short          closing_wait;
        unsigned long           event;
-       unsigned long           last_active;
        int                     count;  /* # of fd on device */
        int                     breakon;
        int                     breakoff;
        int                     xmit_cnt;
         int                     default_threshold;
         int                     default_timeout;
-       unsigned long           jiffies[3];
        unsigned long           rflush_count;
        struct cyclades_monitor mon;
        struct cyclades_idle_stats      idle_stats;