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Commit 1b5db434 authored by Borislav Petkov's avatar Borislav Petkov Committed by Bartlomiej Zolnierkiewicz
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ide-tape: remove struct idetape_request_sense_result_t 



Bart:
- remove unnecessary comment change
- remove two needless "!!"

Signed-off-by: default avatarBorislav Petkov <bbpetkov@yahoo.de>
Signed-off-by: default avatarBartlomiej Zolnierkiewicz <bzolnier@gmail.com>
parent c7ea8a1b

drivers/ide/ide-tape.c

+22 −53
Original line number Diff line number Diff line
@@ -332,32 +332,6 @@ typedef struct idetape_stage_s { 
	struct idetape_stage_s *next;		/* Pointer to the next stage */

} idetape_stage_t;



/*

 *	REQUEST SENSE packet command result - Data Format.

 */

typedef struct {

	unsigned	error_code	:7;	/* Current of deferred errors */

	unsigned	valid		:1;	/* The information field conforms to QIC-157C */

	__u8		reserved1	:8;	/* Segment Number - Reserved */

	unsigned	sense_key	:4;	/* Sense Key */

	unsigned	reserved2_4	:1;	/* Reserved */

	unsigned	ili		:1;	/* Incorrect Length Indicator */

	unsigned	eom		:1;	/* End Of Medium */

	unsigned	filemark 	:1;	/* Filemark */

	__u32		information __attribute__ ((packed));

	__u8		asl;			/* Additional sense length (n-7) */

	__u32		command_specific;	/* Additional command specific information */

	__u8		asc;			/* Additional Sense Code */

	__u8		ascq;			/* Additional Sense Code Qualifier */

	__u8		replaceable_unit_code;	/* Field Replaceable Unit Code */

	unsigned	sk_specific1 	:7;	/* Sense Key Specific */

	unsigned	sksv		:1;	/* Sense Key Specific information is valid */

	__u8		sk_specific2;		/* Sense Key Specific */

	__u8		sk_specific3;		/* Sense Key Specific */

	__u8		pad[2];			/* Padding to 20 bytes */

} idetape_request_sense_result_t;





/*

 *	Most of our global data which we need to save even as we leave the

 *	driver due to an interrupt or a timer event is stored in a variable
@@ -512,9 +486,6 @@ typedef struct ide_tape_obj { 
	int avg_size;

	int avg_speed;



	/* last sense information */

	idetape_request_sense_result_t sense;



	char vendor_id[10];

	char product_id[18];

	char firmware_revision[6];
@@ -1025,36 +996,34 @@ static void idetape_init_pc (idetape_pc_t *pc) 
}



/*

 *	idetape_analyze_error is called on each failed packet command retry

 *	to analyze the request sense. We currently do not utilize this

 *	information.

 * called on each failed packet command retry to analyze the request sense. We

 * currently do not utilize this information.

 */

static void idetape_analyze_error (ide_drive_t *drive, idetape_request_sense_result_t *result)

static void idetape_analyze_error(ide_drive_t *drive, u8 *sense)

{

	idetape_tape_t *tape = drive->driver_data;

	idetape_pc_t *pc = tape->failed_pc;



	tape->sense     = *result;

	tape->sense_key = result->sense_key;

	tape->asc       = result->asc;

	tape->ascq      = result->ascq;

	tape->sense_key = sense[2] & 0xF;

	tape->asc       = sense[12];

	tape->ascq      = sense[13];

#if IDETAPE_DEBUG_LOG

	/*

	 *	Without debugging, we only log an error if we decided to

	 *	give up retrying.

	 * Without debugging, we only log an error if we decided to give up

	 * retrying.

	 */

	if (tape->debug_level >= 1)

		printk(KERN_INFO "ide-tape: pc = %x, sense key = %x, "

			"asc = %x, ascq = %x\n",

			pc->c[0], result->sense_key,

			result->asc, result->ascq);

			pc->c[0], tape->sense_key,

			tape->asc, tape->ascq);

#endif /* IDETAPE_DEBUG_LOG */



	/*

	 *	Correct pc->actually_transferred by asking the tape.

	 */

	/* Correct pc->actually_transferred by asking the tape.	 */

	if (test_bit(PC_DMA_ERROR, &pc->flags)) {

		pc->actually_transferred = pc->request_transfer - tape->tape_block_size * ntohl(get_unaligned(&result->information));

		pc->actually_transferred = pc->request_transfer -

			tape->tape_block_size *

			ntohl(get_unaligned((u32 *)&sense[3]));

		idetape_update_buffers(pc);

	}
@@ -1064,28 +1033,28 @@ static void idetape_analyze_error (ide_drive_t *drive, idetape_request_sense_res 
	 * (i.e. Seagate STT3401A Travan) don't support 0-length read/writes.

	 */

	if ((pc->c[0] == IDETAPE_READ_CMD || pc->c[0] == IDETAPE_WRITE_CMD)

	    && pc->c[4] == 0 && pc->c[3] == 0 && pc->c[2] == 0) { /* length==0 */

		if (result->sense_key == 5) {

	    /* length == 0 */

	    && pc->c[4] == 0 && pc->c[3] == 0 && pc->c[2] == 0) {

		if (tape->sense_key == 5) {

			/* don't report an error, everything's ok */

			pc->error = 0;

			/* don't retry read/write */

			set_bit(PC_ABORT, &pc->flags);

		}

	}

	if (pc->c[0] == IDETAPE_READ_CMD && result->filemark) {

	if (pc->c[0] == IDETAPE_READ_CMD && (sense[2] & 0x80)) {

		pc->error = IDETAPE_ERROR_FILEMARK;

		set_bit(PC_ABORT, &pc->flags);

	}

	if (pc->c[0] == IDETAPE_WRITE_CMD) {

		if (result->eom ||

		    (result->sense_key == 0xd && result->asc == 0x0 &&

		     result->ascq == 0x2)) {

		if ((sense[2] & 0x40) || (tape->sense_key == 0xd

		     && tape->asc == 0x0 && tape->ascq == 0x2)) {

			pc->error = IDETAPE_ERROR_EOD;

			set_bit(PC_ABORT, &pc->flags);

		}

	}

	if (pc->c[0] == IDETAPE_READ_CMD || pc->c[0] == IDETAPE_WRITE_CMD) {

		if (result->sense_key == 8) {

		if (tape->sense_key == 8) {

			pc->error = IDETAPE_ERROR_EOD;

			set_bit(PC_ABORT, &pc->flags);

		}
@@ -1327,7 +1296,7 @@ static ide_startstop_t idetape_request_sense_callback (ide_drive_t *drive) 
		printk(KERN_INFO "ide-tape: Reached idetape_request_sense_callback\n");

#endif /* IDETAPE_DEBUG_LOG */

	if (!tape->pc->error) {

		idetape_analyze_error(drive, (idetape_request_sense_result_t *) tape->pc->buffer);

		idetape_analyze_error(drive, tape->pc->buffer);

		idetape_end_request(drive, 1, 0);

	} else {

		printk(KERN_ERR "ide-tape: Error in REQUEST SENSE itself - Aborting request!\n");