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Subject[PATCH 10/32] ide-tape: remove struct idetape_read_position_result_t
Date
From: Borislav Petkov <bbpetkov@yahoo.de>

There should be no functional changes resulting from this patch.

Signed-off-by: Borislav Petkov <bbpetkov@yahoo.de>
---
drivers/ide/ide-tape.c | 49 +++++++++++++++++------------------------------
1 files changed, 18 insertions(+), 31 deletions(-)

diff --git a/drivers/ide/ide-tape.c b/drivers/ide/ide-tape.c
index 31c1a20..9f1fc50 100644
--- a/drivers/ide/ide-tape.c
+++ b/drivers/ide/ide-tape.c
@@ -653,24 +653,6 @@ struct idetape_id_gcw {
};

/*
- * READ POSITION packet command - Data Format (From Table 6-57)
- */
-typedef struct {
- unsigned reserved0_10 :2; /* Reserved */
- unsigned bpu :1; /* Block Position Unknown */
- unsigned reserved0_543 :3; /* Reserved */
- unsigned eop :1; /* End Of Partition */
- unsigned bop :1; /* Beginning Of Partition */
- u8 partition; /* Partition Number */
- u8 reserved2, reserved3; /* Reserved */
- u32 first_block; /* First Block Location */
- u32 last_block; /* Last Block Location (Optional) */
- u8 reserved12; /* Reserved */
- u8 blocks_in_buffer[3]; /* Blocks In Buffer - (Optional) */
- u32 bytes_in_buffer; /* Bytes In Buffer (Optional) */
-} idetape_read_position_result_t;
-
-/*
* Follows structures which are related to the SELECT SENSE / MODE SENSE
* packet commands. Those packet commands are still not supported
* by ide-tape.
@@ -2153,30 +2135,35 @@ static void idetape_wait_for_request (ide_drive_t *drive, struct request *rq)
spin_lock_irq(&tape->spinlock);
}

-static ide_startstop_t idetape_read_position_callback (ide_drive_t *drive)
+static ide_startstop_t idetape_read_position_callback(ide_drive_t *drive)
{
idetape_tape_t *tape = drive->driver_data;
- idetape_read_position_result_t *result;
+ u8 *readpos = tape->pc->buffer;

debug_log(DBG_PROCS, "Enter %s\n", __func__);

if (!tape->pc->error) {
- result = (idetape_read_position_result_t *) tape->pc->buffer;
- debug_log(DBG_SENSE, "BOP - %s\n", result->bop ? "Yes" : "No");
- debug_log(DBG_SENSE, "EOP - %s\n", result->eop ? "Yes" : "No");
+ debug_log(DBG_SENSE, "BOP - %s\n",
+ !!(readpos[0] & 0x80) ? "Yes" : "No");
+ debug_log(DBG_SENSE, "EOP - %s\n",
+ !!(readpos[0] & 0x40) ? "Yes" : "No");
+
+ if (!!(readpos[0] & 0x4)) {
+ printk(KERN_INFO "ide-tape: Block location is unknown"
+ "to the tape\n");

- if (result->bpu) {
- printk(KERN_INFO "ide-tape: Block location is unknown to the tape\n");
clear_bit(IDETAPE_ADDRESS_VALID, &tape->flags);
idetape_end_request(drive, 0, 0);
} else {
debug_log(DBG_SENSE, "Block Location - %u\n",
- ntohl(result->first_block));
-
- tape->partition = result->partition;
- tape->first_frame_position = ntohl(result->first_block);
- tape->last_frame_position = ntohl(result->last_block);
- tape->blocks_in_buffer = result->blocks_in_buffer[2];
+ be32_to_cpu(*(u32 *)&readpos[4]));
+
+ 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);
}
--
1.5.3.7


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