ide: remove atapi_error_t (take 2)

Remove atapi_error_t.

While at it:
* replace 'HWIF(drive)' by 'drive->hwif'

v2:
* Add {ILI,EOM,LFS}_ERR defines to <linux/hdreg.h>.

Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>

5 files changed, 15 insertions, 45 deletions

diff --git a/drivers/ide/ide-floppy.c b/drivers/ide/ide-floppy.c
index 7b94c7a..2a37a08 100644
--- a/drivers/ide/ide-floppy.c
+++ b/drivers/ide/ide-floppy.c
@@ -772,9 +772,8 @@ static void idefloppy_retry_pc (ide_drive_t *drive)
 {
 	idefloppy_pc_t *pc;
 	struct request *rq;
-	atapi_error_t error;
 
-	error.all = HWIF(drive)->INB(IDE_ERROR_REG);
+	(void)drive->hwif->INB(IDE_ERROR_REG);
 	pc = idefloppy_next_pc_storage(drive);
 	rq = idefloppy_next_rq_storage(drive);
 	idefloppy_create_request_sense_cmd(pc);
diff --git a/drivers/ide/ide-lib.c b/drivers/ide/ide-lib.c
index dc7e539..562f5ef 100644
--- a/drivers/ide/ide-lib.c
+++ b/drivers/ide/ide-lib.c
@@ -562,9 +562,8 @@ static u8 ide_dump_ata_status(ide_drive_t *drive, const char *msg, u8 stat)
 static u8 ide_dump_atapi_status(ide_drive_t *drive, const char *msg, u8 stat)
 {
 	unsigned long flags;
-	atapi_error_t error;
+	u8 err = 0;
 
-	error.all = 0;
 	local_irq_save(flags);
 	printk("%s: %s: status=0x%02x { ", drive->name, msg, stat);
 	if (stat & BUSY_STAT)
@@ -580,19 +579,19 @@ static u8 ide_dump_atapi_status(ide_drive_t *drive, const char *msg, u8 stat)
 	}
 	printk("}\n");
 	if ((stat & (BUSY_STAT|ERR_STAT)) == ERR_STAT) {
-		error.all = HWIF(drive)->INB(IDE_ERROR_REG);
-		printk("%s: %s: error=0x%02x { ", drive->name, msg, error.all);
-		if (error.b.ili)	printk("IllegalLengthIndication ");
-		if (error.b.eom)	printk("EndOfMedia ");
-		if (error.b.abrt)	printk("AbortedCommand ");
-		if (error.b.mcr)	printk("MediaChangeRequested ");
-		if (error.b.sense_key)	printk("LastFailedSense=0x%02x ",
-						error.b.sense_key);
+		err = drive->hwif->INB(IDE_ERROR_REG);
+		printk("%s: %s: error=0x%02x { ", drive->name, msg, err);
+		if (err & ILI_ERR)	printk("IllegalLengthIndication ");
+		if (err & EOM_ERR)	printk("EndOfMedia ");
+		if (err & ABRT_ERR)	printk("AbortedCommand ");
+		if (err & MCR_ERR)	printk("MediaChangeRequested ");
+		if (err & LFS_ERR)	printk("LastFailedSense=0x%02x ",
+						(err & LFS_ERR) >> 4);
 		printk("}\n");
 	}
 	ide_dump_opcode(drive);
 	local_irq_restore(flags);
-	return error.all;
+	return err;
 }
 
 /**
diff --git a/drivers/ide/ide-tape.c b/drivers/ide/ide-tape.c
index c910395..2c03f46 100644
--- a/drivers/ide/ide-tape.c
+++ b/drivers/ide/ide-tape.c
@@ -1808,9 +1808,8 @@ static ide_startstop_t idetape_retry_pc (ide_drive_t *drive)
 	idetape_tape_t *tape = drive->driver_data;
 	idetape_pc_t *pc;
 	struct request *rq;
-	atapi_error_t error;
 
-	error.all = HWIF(drive)->INB(IDE_ERROR_REG);
+	(void)drive->hwif->INB(IDE_ERROR_REG);
 	pc = idetape_next_pc_storage(drive);
 	rq = idetape_next_rq_storage(drive);
 	idetape_create_request_sense_cmd(pc);
diff --git a/include/linux/hdreg.h b/include/linux/hdreg.h
index df17bf7..0521f12 100644
--- a/include/linux/hdreg.h
+++ b/include/linux/hdreg.h
@@ -44,7 +44,9 @@
 
 /* Bits for HD_ERROR */
 #define MARK_ERR		0x01	/* Bad address mark */
+#define ILI_ERR			0x01	/* Illegal Length Indication (ATAPI) */
 #define TRK0_ERR		0x02	/* couldn't find track 0 */
+#define EOM_ERR			0x02	/* End Of Media (ATAPI) */
 #define ABRT_ERR		0x04	/* Command aborted */
 #define MCR_ERR			0x08	/* media change request */
 #define ID_ERR			0x10	/* ID field not found */
@@ -52,6 +54,7 @@
 #define ECC_ERR			0x40	/* Uncorrectable ECC error */
 #define BBD_ERR			0x80	/* pre-EIDE meaning:  block marked bad */
 #define ICRC_ERR		0x80	/* new meaning:  CRC error during transfer */
+#define LFS_ERR			0xf0	/* Last Failed Sense (ATAPI) */
 
 /* Bits of HD_NSECTOR */
 #define CD			0x01
diff --git a/include/linux/ide.h b/include/linux/ide.h
index 921cf71..0c1b0aa 100644
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -417,36 +417,6 @@ typedef union {
 } atapi_ireason_t;
 
 /*
- * The ATAPI error register.
- *
- * ili		: Illegal Length Indication
- * eom		: End Of Media Detected
- * abrt		: Aborted command - As defined by ATA
- * mcr		: Media Change Requested - As defined by ATA
- * sense_key	: Sense key of the last failed packet command
- */
-typedef union {
-	unsigned all			:8;
-	struct {
-#if defined(__LITTLE_ENDIAN_BITFIELD)
-		unsigned ili		:1;
-		unsigned eom		:1;
-		unsigned abrt		:1;
-		unsigned mcr		:1;
-		unsigned sense_key	:4;
-#elif defined(__BIG_ENDIAN_BITFIELD)
-		unsigned sense_key	:4;
-		unsigned mcr		:1;
-		unsigned abrt		:1;
-		unsigned eom		:1;
-		unsigned ili		:1;
-#else
-#error "Please fix <asm/byteorder.h>"
-#endif
-	} b;
-} atapi_error_t;
-
-/*
  * Status returned from various ide_ functions
  */
 typedef enum {