From a5987e0a1b569146ed9cfa0a8c275a21b344fcaa Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Thu, 27 Mar 2008 19:14:23 +0900 Subject: libata: make ata_tf_to_lba[48]() generic ata_tf_to_lba[48]() currently return LBA in tf + 1 for ata_read_native_max_address(). Make them return LBA and make it global so that it can be used to read LBA off TF for other purposes. ata_read_native_max_address() now adds 1 itself. Signed-off-by: Tejun Heo Signed-off-by: Jeff Garzik --- drivers/ata/libata-core.c | 12 ++++++------ drivers/ata/libata.h | 2 ++ 2 files changed, 8 insertions(+), 6 deletions(-) (limited to 'drivers/ata') diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c index 9121cc443be8..4d78f5debb6c 100644 --- a/drivers/ata/libata-core.c +++ b/drivers/ata/libata-core.c @@ -1211,7 +1211,7 @@ static u64 ata_id_n_sectors(const u16 *id) } } -static u64 ata_tf_to_lba48(struct ata_taskfile *tf) +u64 ata_tf_to_lba48(const struct ata_taskfile *tf) { u64 sectors = 0; @@ -1222,10 +1222,10 @@ static u64 ata_tf_to_lba48(struct ata_taskfile *tf) sectors |= (tf->lbam & 0xff) << 8; sectors |= (tf->lbal & 0xff); - return ++sectors; + return sectors; } -static u64 ata_tf_to_lba(struct ata_taskfile *tf) +u64 ata_tf_to_lba(const struct ata_taskfile *tf) { u64 sectors = 0; @@ -1234,7 +1234,7 @@ static u64 ata_tf_to_lba(struct ata_taskfile *tf) sectors |= (tf->lbam & 0xff) << 8; sectors |= (tf->lbal & 0xff); - return ++sectors; + return sectors; } /** @@ -1279,9 +1279,9 @@ static int ata_read_native_max_address(struct ata_device *dev, u64 *max_sectors) } if (lba48) - *max_sectors = ata_tf_to_lba48(&tf); + *max_sectors = ata_tf_to_lba48(&tf) + 1; else - *max_sectors = ata_tf_to_lba(&tf); + *max_sectors = ata_tf_to_lba(&tf) + 1; if (dev->horkage & ATA_HORKAGE_HPA_SIZE) (*max_sectors)--; return 0; diff --git a/drivers/ata/libata.h b/drivers/ata/libata.h index a69f663c7402..5e8d0359bccb 100644 --- a/drivers/ata/libata.h +++ b/drivers/ata/libata.h @@ -61,6 +61,8 @@ extern int libata_fua; extern int libata_noacpi; extern int libata_allow_tpm; extern void ata_force_cbl(struct ata_port *ap); +extern u64 ata_tf_to_lba(const struct ata_taskfile *tf); +extern u64 ata_tf_to_lba48(const struct ata_taskfile *tf); extern struct ata_queued_cmd *ata_qc_new_init(struct ata_device *dev); extern int ata_build_rw_tf(struct ata_taskfile *tf, struct ata_device *dev, u64 block, u32 n_block, unsigned int tf_flags, -- cgit v1.2.3