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authorBartlomiej Zolnierkiewicz <bzolnier@gmail.com>2008-01-25 22:17:17 +0100
committerBartlomiej Zolnierkiewicz <bzolnier@gmail.com>2008-01-25 22:17:17 +0100
commita501633c7d44087e806597d3a213d735346edd51 (patch)
treeb82d583f6e29beae7943860b01a0303985d197ea /drivers/ide
parent1c904fcfbb0d8eef92ef42b1da378b4714143e46 (diff)
downloadop-kernel-dev-a501633c7d44087e806597d3a213d735346edd51.zip
op-kernel-dev-a501633c7d44087e806597d3a213d735346edd51.tar.gz
ide-disk: use ide_get_lba_addr()
* Export ide_get_lba_addr(). * Convert idedisk_{read_native,set}_max_address() to use ide_get_lba_addr(). * Remove incorrect comment from idedisk_read_native_max_address() (noticed by Sergei). There should be no functionality changes caused by this patch. Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Diffstat (limited to 'drivers/ide')
-rw-r--r--drivers/ide/ide-disk.c26
-rw-r--r--drivers/ide/ide-lib.c3
2 files changed, 6 insertions, 23 deletions
diff --git a/drivers/ide/ide-disk.c b/drivers/ide/ide-disk.c
index 3d7127b..d8fdd86 100644
--- a/drivers/ide/ide-disk.c
+++ b/drivers/ide/ide-disk.c
@@ -326,18 +326,9 @@ static u64 idedisk_read_native_max_address(ide_drive_t *drive, int lba48)
ide_no_data_taskfile(drive, &args);
/* if OK, compute maximum address value */
- if ((tf->status & 0x01) == 0) {
- u32 high, low;
+ if ((tf->status & 0x01) == 0)
+ addr = ide_get_lba_addr(tf, lba48) + 1;
- if (lba48)
- high = (tf->hob_lbah << 16) | (tf->hob_lbam << 8) |
- tf->hob_lbal;
- else
- high = tf->device & 0xf;
- low = (tf->lbah << 16) | (tf->lbam << 8) | tf->lbal;
- addr = ((__u64)high << 24) | low;
- addr++; /* since the return value is (maxlba - 1), we add 1 */
- }
return addr;
}
@@ -373,18 +364,9 @@ static u64 idedisk_set_max_address(ide_drive_t *drive, u64 addr_req, int lba48)
/* submit command request */
ide_no_data_taskfile(drive, &args);
/* if OK, compute maximum address value */
- if ((tf->status & 0x01) == 0) {
- u32 high, low;
+ if ((tf->status & 0x01) == 0)
+ addr_set = ide_get_lba_addr(tf, lba48) + 1;
- if (lba48)
- high = (tf->hob_lbah << 16) | (tf->hob_lbam << 8) |
- tf->hob_lbal;
- else
- high = tf->device & 0xf;
- low = (tf->lbah << 16) | (tf->lbam << 8) | tf->lbal;
- addr_set = ((__u64)high << 24) | low;
- addr_set++;
- }
return addr_set;
}
diff --git a/drivers/ide/ide-lib.c b/drivers/ide/ide-lib.c
index d7503c4..6b2e810 100644
--- a/drivers/ide/ide-lib.c
+++ b/drivers/ide/ide-lib.c
@@ -479,7 +479,7 @@ static void ide_dump_opcode(ide_drive_t *drive)
printk("0x%02x\n", opcode);
}
-static u64 ide_get_lba_addr(struct ide_taskfile *tf, int lba48)
+u64 ide_get_lba_addr(struct ide_taskfile *tf, int lba48)
{
u32 high, low;
@@ -492,6 +492,7 @@ static u64 ide_get_lba_addr(struct ide_taskfile *tf, int lba48)
return ((u64)high << 24) | low;
}
+EXPORT_SYMBOL_GPL(ide_get_lba_addr);
static void ide_dump_sector(ide_drive_t *drive)
{
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