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Commit 3cffb9ce authored by Borislav Petkov's avatar Borislav Petkov Committed by Bartlomiej Zolnierkiewicz
Browse files

ide-tape: remove struct idetape_parameter_block_descriptor_t 



Also, shorten function name idetape_get_blocksize_from_block_descriptor() and
move its definition up thereby getting rid of its forward declaration.

Signed-off-by: default avatarBorislav Petkov <bbpetkov@yahoo.de>
Signed-off-by: default avatarBartlomiej Zolnierkiewicz <bzolnier@gmail.com>
parent 496b92e6

drivers/ide/ide-tape.c

+26 −40
Original line number Diff line number Diff line
@@ -677,18 +677,6 @@ typedef struct { 
#define IDETAPE_BLOCK_SIZE_PAGE		0x30

#define IDETAPE_BUFFER_FILLING_PAGE	0x33



/*

 *	Mode Parameter Block Descriptor the MODE SENSE packet command

 *

 *	Support for block descriptors is optional.

 */

typedef struct {

	__u8		density_code;		/* Medium density code */

	__u8		blocks[3];		/* Number of blocks */

	__u8		reserved4;		/* Reserved */

	__u8		length[3];		/* Block Length */

} idetape_parameter_block_descriptor_t;



/*

 *	Run time configurable parameters.

 */
@@ -3503,7 +3491,30 @@ static int idetape_chrdev_ioctl (struct inode *inode, struct file *file, unsigne 
	}

}



static void idetape_get_blocksize_from_block_descriptor(ide_drive_t *drive);

/*

 * Do a mode sense page 0 with block descriptor and if it succeeds set the tape

 * block size with the reported value.

 */

static void ide_tape_get_bsize_from_bdesc(ide_drive_t *drive)

{

	idetape_tape_t *tape = drive->driver_data;

	idetape_pc_t pc;



	idetape_create_mode_sense_cmd(&pc, IDETAPE_BLOCK_DESCRIPTOR);

	if (idetape_queue_pc_tail(drive, &pc)) {

		printk(KERN_ERR "ide-tape: Can't get block descriptor\n");

		if (tape->tape_block_size == 0) {

			printk(KERN_WARNING "ide-tape: Cannot deal with zero "

					    "block size, assuming 32k\n");

			tape->tape_block_size = 32768;

		}

		return;

	}

	tape->tape_block_size = (pc.buffer[4 + 5] << 16) +

				(pc.buffer[4 + 6] << 8)  +

				 pc.buffer[4 + 7];

	tape->drv_write_prot = (pc.buffer[2] & 0x80) >> 7;

}



/*

 *	Our character device open function.
@@ -3557,7 +3568,7 @@ static int idetape_chrdev_open (struct inode *inode, struct file *filp) 
		clear_bit(IDETAPE_PIPELINE_ERROR, &tape->flags);



	/* Read block size and write protect status from drive. */

	idetape_get_blocksize_from_block_descriptor(drive);

	ide_tape_get_bsize_from_bdesc(drive);



	/* Set write protect flag if device is opened as read-only. */

	if ((filp->f_flags & O_ACCMODE) == O_RDONLY)
@@ -3771,31 +3782,6 @@ static void idetape_get_mode_sense_results (ide_drive_t *drive) 
		tape->tape_block_size = 1024;

}



/*

 *	ide_get_blocksize_from_block_descriptor does a mode sense page 0 with block descriptor

 *	and if it succeeds sets the tape block size with the reported value

 */

static void idetape_get_blocksize_from_block_descriptor(ide_drive_t *drive)

{



	idetape_tape_t *tape = drive->driver_data;

	idetape_pc_t pc;

	idetape_parameter_block_descriptor_t *block_descrp;



	idetape_create_mode_sense_cmd(&pc, IDETAPE_BLOCK_DESCRIPTOR);

	if (idetape_queue_pc_tail(drive, &pc)) {

		printk(KERN_ERR "ide-tape: Can't get block descriptor\n");

		if (tape->tape_block_size == 0) {

			printk(KERN_WARNING "ide-tape: Cannot deal with zero block size, assume 32k\n");

			tape->tape_block_size =  32768;

		}

		return;

	}

	block_descrp = (idetape_parameter_block_descriptor_t *)(pc.buffer + 4);

	tape->tape_block_size =( block_descrp->length[0]<<16) + (block_descrp->length[1]<<8) + block_descrp->length[2];

	tape->drv_write_prot = (pc.buffer[2] & 0x80) >> 7;

}



#ifdef CONFIG_IDE_PROC_FS

static void idetape_add_settings (ide_drive_t *drive)

{
@@ -3872,7 +3858,7 @@ static void idetape_setup (ide_drive_t *drive, idetape_tape_t *tape, int minor) 
	

	idetape_get_inquiry_results(drive);

	idetape_get_mode_sense_results(drive);

	idetape_get_blocksize_from_block_descriptor(drive);

	ide_tape_get_bsize_from_bdesc(drive);

	tape->user_bs_factor = 1;

	tape->stage_size = *ctl * tape->tape_block_size;

	while (tape->stage_size > 0xffff) {