From 1b5db434f4a1f2c5e01de7d525d8f3c92a813f51 Mon Sep 17 00:00:00 2001 From: Borislav Petkov Date: Sat, 2 Feb 2008 19:56:48 +0100 Subject: [PATCH] ide-tape: remove struct idetape_request_sense_result_t Bart: - remove unnecessary comment change - remove two needless "!!" Signed-off-by: Borislav Petkov Signed-off-by: Bartlomiej Zolnierkiewicz --- drivers/ide/ide-tape.c | 75 +++++++++++++----------------------------- 1 file changed, 22 insertions(+), 53 deletions(-) diff --git a/drivers/ide/ide-tape.c b/drivers/ide/ide-tape.c index 58c4c1bc35..a7670fbd47 100644 --- a/drivers/ide/ide-tape.c +++ b/drivers/ide/ide-tape.c @@ -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"); -- 2.39.5