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Commit ae3a8387 authored by Borislav Petkov's avatar Borislav Petkov
Browse files

ide-atapi: use local sense buffer 



Access the sense buffer through the bio in ->pc_callback method thus
alleviating the need for the pc->buf pointer.

There should be no functional change resulting from this patch.

Signed-off-by: default avatarBorislav Petkov <petkovbb@gmail.com>
parent 5122e517

drivers/ide/ide-atapi.c

+3 −1
Original line number Diff line number Diff line
@@ -253,7 +253,9 @@ void ide_retry_pc(ide_drive_t *drive) 
	/* init pc from sense_rq */

	ide_init_pc(pc);

	memcpy(pc->c, sense_rq->cmd, 12);

	pc->buf = bio_data(sense_rq->bio);	/* pointer to mapped address */



	/* pointer to mapped address */

	pc->buf = bio_data(sense_rq->bio);

	pc->req_xfer = blk_rq_bytes(sense_rq);



	if (drive->media == ide_tape)

drivers/ide/ide-floppy.c

+2 −1
Original line number Diff line number Diff line
@@ -77,7 +77,8 @@ static int ide_floppy_callback(ide_drive_t *drive, int dsc) 
	    (rq && blk_pc_request(rq)))

		uptodate = 1; /* FIXME */

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

		u8 *buf = pc->buf;



		u8 *buf = bio_data(rq->bio);



		if (!pc->error) {

			floppy->sense_key = buf[2] & 0x0F;

drivers/ide/ide-tape.c

+3 −2
Original line number Diff line number Diff line
@@ -288,11 +288,12 @@ static struct ide_tape_obj *ide_tape_chrdev_get(unsigned int i) 
 * 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, u8 *sense)

static void idetape_analyze_error(ide_drive_t *drive)

{

	idetape_tape_t *tape = drive->driver_data;

	struct ide_atapi_pc *pc = drive->failed_pc;

	struct request *rq = drive->hwif->rq;

	u8 *sense = bio_data(rq->bio);



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

	tape->asc       = sense[12];
@@ -362,7 +363,7 @@ static int ide_tape_callback(ide_drive_t *drive, int dsc) 


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

		if (uptodate)

			idetape_analyze_error(drive, pc->buf);

			idetape_analyze_error(drive);

		else

			printk(KERN_ERR "ide-tape: Error in REQUEST SENSE "

					"itself - Aborting request!\n");