ide-tape: struct idetape_tape_t: remove unused members

- last_frame_position: only being written to once
- firmware_revision, product_id, vendor_id: used once, remove from struct
  idetape_tape_t and deal with them locally
- firmware_revision_num: only written to once
- tape_still_time_begin: completely unused
- tape_still_time: never written to; remove corresponding code chunk
- uncontrolled_last_pipeline_head: only once written to
- blocks_in_buffer: only written to

Signed-off-by: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>

1 files changed, 11 insertions, 34 deletions

diff --git a/drivers/ide/ide-tape.c b/drivers/ide/ide-tape.c
index 73f06c85930..ad13527ff44 100644
--- a/drivers/ide/ide-tape.c
+++ b/drivers/ide/ide-tape.c
@@ -311,8 +311,6 @@ typedef struct ide_tape_obj {
         u8 partition;
         /* Current block */
         unsigned int first_frame_position;
-        unsigned int last_frame_position;
-        unsigned int blocks_in_buffer;
 
         /*
          *      Last error information
@@ -399,11 +397,6 @@ typedef struct ide_tape_obj {
         int avg_size;
         int avg_speed;
 
-        char vendor_id[10];
-        char product_id[18];
-        char firmware_revision[6];
-        int firmware_revision_num;
-
         /* the door is currently locked */
         int door_locked;
         /* the tape hardware is write protected */
@@ -441,12 +434,6 @@ typedef struct ide_tape_obj {
         int measure_insert_time;
 
         /*
-         * Measure tape still time, in milliseconds
-         */
-        unsigned long tape_still_time_begin;
-        int tape_still_time;
-
-        /*
          * Speed regulation negative feedback loop
          */
         int speed_control;
@@ -454,7 +441,6 @@ typedef struct ide_tape_obj {
         int controlled_pipeline_head_speed;
         int uncontrolled_pipeline_head_speed;
         int controlled_last_pipeline_head;
-        int uncontrolled_last_pipeline_head;
         unsigned long uncontrolled_pipeline_head_time;
         unsigned long controlled_pipeline_head_time;
         int controlled_previous_pipeline_head;
@@ -1696,8 +1682,6 @@ static ide_startstop_t idetape_do_request(ide_drive_t *drive,
                 drive->post_reset = 0;
         }
 
-        if (tape->tape_still_time > 100 && tape->tape_still_time < 200)
-                tape->measure_insert_time = 1;
         if (time_after(jiffies, tape->insert_time))
                 tape->insert_speed = tape->insert_size / 1024 * HZ / (jiffies - tape->insert_time);
         idetape_calculate_speeds(drive);
@@ -2009,9 +1993,6 @@ static ide_startstop_t idetape_read_position_callback(ide_drive_t *drive)
                         tape->partition = readpos[1];
                         tape->first_frame_position =
                                 be32_to_cpu(*(u32 *)&readpos[4]);
-                        tape->last_frame_position =
-                                be32_to_cpu(*(u32 *)&readpos[8]);
-                        tape->blocks_in_buffer = readpos[15];
                         set_bit(IDETAPE_ADDRESS_VALID, &tape->flags);
                         idetape_end_request(drive, 1, 0);
                 }
@@ -2540,7 +2521,7 @@ static void idetape_restart_speed_control (ide_drive_t *drive)
 
         tape->restart_speed_control_req = 0;
         tape->pipeline_head = 0;
-        tape->controlled_last_pipeline_head = tape->uncontrolled_last_pipeline_head = 0;
+        tape->controlled_last_pipeline_head = 0;
         tape->controlled_previous_pipeline_head = tape->uncontrolled_previous_pipeline_head = 0;
         tape->pipeline_head_speed = tape->controlled_pipeline_head_speed = 5000;
         tape->uncontrolled_pipeline_head_speed = 0;
@@ -3438,9 +3419,9 @@ static int idetape_identify_device (ide_drive_t *drive)
 
 static void idetape_get_inquiry_results(ide_drive_t *drive)
 {
-        char *r;
         idetape_tape_t *tape = drive->driver_data;
         idetape_pc_t pc;
+        char fw_rev[6], vendor_id[10], product_id[18];
 
         idetape_create_inquiry_cmd(&pc);
         if (idetape_queue_pc_tail(drive, &pc)) {
@@ -3448,20 +3429,16 @@ static void idetape_get_inquiry_results(ide_drive_t *drive)
                                 tape->name);
                 return;
         }
-        memcpy(tape->vendor_id, &pc.buffer[8], 8);
-        memcpy(tape->product_id, &pc.buffer[16], 16);
-        memcpy(tape->firmware_revision, &pc.buffer[32], 4);
-
-        ide_fixstring(tape->vendor_id, 10, 0);
-        ide_fixstring(tape->product_id, 18, 0);
-        ide_fixstring(tape->firmware_revision, 6, 0);
-        r = tape->firmware_revision;
-        if (*(r + 1) == '.')
-                tape->firmware_revision_num = (*r - '0') * 100 +
-                        (*(r + 2) - '0') * 10 + *(r + 3) - '0';
+        memcpy(vendor_id, &pc.buffer[8], 8);
+        memcpy(product_id, &pc.buffer[16], 16);
+        memcpy(fw_rev, &pc.buffer[32], 4);
+
+        ide_fixstring(vendor_id, 10, 0);
+        ide_fixstring(product_id, 18, 0);
+        ide_fixstring(fw_rev, 6, 0);
+
         printk(KERN_INFO "ide-tape: %s <-> %s: %s %s rev %s\n",
-                        drive->name, tape->name, tape->vendor_id,
-                        tape->product_id, tape->firmware_revision);
+                        drive->name, tape->name, vendor_id, product_id, fw_rev);
 }
 
 /*