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-rw-r--r--drivers/scsi/libata-core.c36
1 files changed, 14 insertions, 22 deletions
diff --git a/drivers/scsi/libata-core.c b/drivers/scsi/libata-core.c
index d55f12dacfc..dcd3b5553cc 100644
--- a/drivers/scsi/libata-core.c
+++ b/drivers/scsi/libata-core.c
@@ -87,7 +87,7 @@ MODULE_LICENSE("GPL");
MODULE_VERSION(DRV_VERSION);
/**
- * ata_tf_load - send taskfile registers to host controller
+ * ata_tf_load_pio - send taskfile registers to host controller
* @ap: Port to which output is sent
* @tf: ATA taskfile register set
*
@@ -2701,13 +2701,13 @@ void ata_poll_qc_complete(struct ata_queued_cmd *qc, u8 drv_stat)
/**
* ata_pio_poll -
- * @ap:
+ * @ap: the target ata_port
*
* LOCKING:
* None. (executing in kernel thread context)
*
* RETURNS:
- *
+ * timeout value to use
*/
static unsigned long ata_pio_poll(struct ata_port *ap)
@@ -2748,8 +2748,8 @@ static unsigned long ata_pio_poll(struct ata_port *ap)
}
/**
- * ata_pio_complete -
- * @ap:
+ * ata_pio_complete - check if drive is busy or idle
+ * @ap: the target ata_port
*
* LOCKING:
* None. (executing in kernel thread context)
@@ -2801,7 +2801,7 @@ static int ata_pio_complete (struct ata_port *ap)
/**
- * swap_buf_le16 -
+ * swap_buf_le16 - swap halves of 16-words in place
* @buf: Buffer to swap
* @buf_words: Number of 16-bit words in buffer.
*
@@ -2810,6 +2810,7 @@ static int ata_pio_complete (struct ata_port *ap)
* vice-versa.
*
* LOCKING:
+ * Inherited from caller.
*/
void swap_buf_le16(u16 *buf, unsigned int buf_words)
{
@@ -2832,7 +2833,6 @@ void swap_buf_le16(u16 *buf, unsigned int buf_words)
*
* LOCKING:
* Inherited from caller.
- *
*/
static void ata_mmio_data_xfer(struct ata_port *ap, unsigned char *buf,
@@ -2878,7 +2878,6 @@ static void ata_mmio_data_xfer(struct ata_port *ap, unsigned char *buf,
*
* LOCKING:
* Inherited from caller.
- *
*/
static void ata_pio_data_xfer(struct ata_port *ap, unsigned char *buf,
@@ -2918,7 +2917,6 @@ static void ata_pio_data_xfer(struct ata_port *ap, unsigned char *buf,
*
* LOCKING:
* Inherited from caller.
- *
*/
static void ata_data_xfer(struct ata_port *ap, unsigned char *buf,
@@ -3071,7 +3069,6 @@ next_sg:
*
* LOCKING:
* Inherited from caller.
- *
*/
static void atapi_pio_bytes(struct ata_queued_cmd *qc)
@@ -3107,8 +3104,8 @@ err_out:
}
/**
- * ata_pio_sector -
- * @ap:
+ * ata_pio_block - start PIO on a block
+ * @ap: the target ata_port
*
* LOCKING:
* None. (executing in kernel thread context)
@@ -3120,7 +3117,7 @@ static void ata_pio_block(struct ata_port *ap)
u8 status;
/*
- * This is purely hueristic. This is a fast path.
+ * This is purely heuristic. This is a fast path.
* Sometimes when we enter, BSY will be cleared in
* a chk-status or two. If not, the drive is probably seeking
* or something. Snooze for a couple msecs, then
@@ -3440,7 +3437,6 @@ static void __ata_qc_complete(struct ata_queued_cmd *qc)
*
* LOCKING:
* spin_lock_irqsave(host_set lock)
- *
*/
void ata_qc_free(struct ata_queued_cmd *qc)
{
@@ -3460,7 +3456,6 @@ void ata_qc_free(struct ata_queued_cmd *qc)
*
* LOCKING:
* spin_lock_irqsave(host_set lock)
- *
*/
void ata_qc_complete(struct ata_queued_cmd *qc, u8 drv_stat)
@@ -3954,7 +3949,6 @@ idle_irq:
*
* RETURNS:
* IRQ_NONE or IRQ_HANDLED.
- *
*/
irqreturn_t ata_interrupt (int irq, void *dev_instance, struct pt_regs *regs)
@@ -4066,6 +4060,7 @@ err_out:
* May be used as the port_start() entry in ata_port_operations.
*
* LOCKING:
+ * Inherited from caller.
*/
int ata_port_start (struct ata_port *ap)
@@ -4091,6 +4086,7 @@ int ata_port_start (struct ata_port *ap)
* May be used as the port_stop() entry in ata_port_operations.
*
* LOCKING:
+ * Inherited from caller.
*/
void ata_port_stop (struct ata_port *ap)
@@ -4113,6 +4109,7 @@ void ata_host_stop (struct ata_host_set *host_set)
* @do_unregister: 1 if we fully unregister, 0 to just stop the port
*
* LOCKING:
+ * Inherited from caller.
*/
static void ata_host_remove(struct ata_port *ap, unsigned int do_unregister)
@@ -4140,7 +4137,6 @@ static void ata_host_remove(struct ata_port *ap, unsigned int do_unregister)
*
* LOCKING:
* Inherited from caller.
- *
*/
static void ata_host_init(struct ata_port *ap, struct Scsi_Host *host,
@@ -4201,7 +4197,6 @@ static void ata_host_init(struct ata_port *ap, struct Scsi_Host *host,
*
* RETURNS:
* New ata_port on success, for NULL on error.
- *
*/
static struct ata_port * ata_host_add(const struct ata_probe_ent *ent,
@@ -4249,7 +4244,6 @@ err_out:
*
* RETURNS:
* Number of ports registered. Zero on error (no ports registered).
- *
*/
int ata_device_add(const struct ata_probe_ent *ent)
@@ -4381,7 +4375,6 @@ err_out:
* Inherited from calling layer (may sleep).
*/
-
void ata_host_set_remove(struct ata_host_set *host_set)
{
struct ata_port *ap;
@@ -4614,7 +4607,6 @@ static struct ata_probe_ent *ata_pci_init_legacy_port(struct pci_dev *pdev, stru
*
* RETURNS:
* Zero on success, negative on errno-based value on error.
- *
*/
int ata_pci_init_one (struct pci_dev *pdev, struct ata_port_info **port_info,
@@ -4762,7 +4754,7 @@ err_out:
* @pdev: PCI device that was removed
*
* PCI layer indicates to libata via this hook that
- * hot-unplug or module unload event has occured.
+ * hot-unplug or module unload event has occurred.
* Handle this by unregistering all objects associated
* with this PCI device. Free those objects. Then finally
* release PCI resources and disable device.