Merge branch 'upstream'

[linux-2.6.git] / drivers / scsi / libata-core.c

diff --git a/drivers/scsi/libata-core.c b/drivers/scsi/libata-core.c
index b1011f4b995ca733440bce2aa98b6656c0ccd00a..85081a1e1b102a76740b1834085d7eee4c198a48 100644 (file)
--- a/drivers/scsi/libata-core.c
+++ b/drivers/scsi/libata-core.c
@@ -295,28 +295,6 @@ void ata_exec_command(struct ata_port *ap, const struct ata_taskfile *tf)
                ata_exec_command_pio(ap, tf);
 }
 
-/**
- *     ata_exec - issue ATA command to host controller
- *     @ap: port to which command is being issued
- *     @tf: ATA taskfile register set
- *
- *     Issues PIO/MMIO write to ATA command register, with proper
- *     synchronization with interrupt handler / other threads.
- *
- *     LOCKING:
- *     Obtains host_set lock.
- */
-
-static inline void ata_exec(struct ata_port *ap, const struct ata_taskfile *tf)
-{
-       unsigned long flags;
-
-       DPRINTK("ata%u: cmd 0x%X\n", ap->id, tf->command);
-       spin_lock_irqsave(&ap->host_set->lock, flags);
-       ap->ops->exec_command(ap, tf);
-       spin_unlock_irqrestore(&ap->host_set->lock, flags);
-}
-
 /**
  *     ata_tf_to_host - issue ATA taskfile to host controller
  *     @ap: port to which command is being issued
@@ -327,30 +305,11 @@ static inline void ata_exec(struct ata_port *ap, const struct ata_taskfile *tf)
  *     other threads.
  *
  *     LOCKING:
- *     Obtains host_set lock.
- */
-
-static void ata_tf_to_host(struct ata_port *ap, const struct ata_taskfile *tf)
-{
-       ap->ops->tf_load(ap, tf);
-
-       ata_exec(ap, tf);
-}
-
-/**
- *     ata_tf_to_host_nolock - issue ATA taskfile to host controller
- *     @ap: port to which command is being issued
- *     @tf: ATA taskfile register set
- *
- *     Issues ATA taskfile register set to ATA host controller,
- *     with proper synchronization with interrupt handler and
- *     other threads.
- *
- *     LOCKING:
  *     spin_lock_irqsave(host_set lock)
  */
 
-void ata_tf_to_host_nolock(struct ata_port *ap, const struct ata_taskfile *tf)
+static inline void ata_tf_to_host(struct ata_port *ap,
+                                 const struct ata_taskfile *tf)
 {
        ap->ops->tf_load(ap, tf);
        ap->ops->exec_command(ap, tf);
@@ -1916,12 +1875,14 @@ static void ata_bus_post_reset(struct ata_port *ap, unsigned int devmask)
  *
  *     LOCKING:
  *     PCI/etc. bus probe sem.
+ *     Obtains host_set lock.
  *
  */
 
 static unsigned int ata_bus_edd(struct ata_port *ap)
 {
        struct ata_taskfile tf;
+       unsigned long flags;
 
        /* set up execute-device-diag (bus reset) taskfile */
        /* also, take interrupts to a known state (disabled) */
@@ -1932,7 +1893,9 @@ static unsigned int ata_bus_edd(struct ata_port *ap)
        tf.protocol = ATA_PROT_NODATA;
 
        /* do bus reset */
+       spin_lock_irqsave(&ap->host_set->lock, flags);
        ata_tf_to_host(ap, &tf);
+       spin_unlock_irqrestore(&ap->host_set->lock, flags);
 
        /* spec says at least 2ms.  but who knows with those
         * crazy ATAPI devices...
@@ -3711,7 +3674,7 @@ int ata_qc_issue_prot(struct ata_queued_cmd *qc)
                if (qc->tf.flags & ATA_TFLAG_POLLING)
                        ata_qc_set_polling(qc);
 
-               ata_tf_to_host_nolock(ap, &qc->tf);
+               ata_tf_to_host(ap, &qc->tf);
                ap->hsm_task_state = HSM_ST_LAST;
 
                if (qc->tf.flags & ATA_TFLAG_POLLING)
@@ -3732,7 +3695,7 @@ int ata_qc_issue_prot(struct ata_queued_cmd *qc)
                if (qc->tf.flags & ATA_TFLAG_POLLING)
                        ata_qc_set_polling(qc);
 
-               ata_tf_to_host_nolock(ap, &qc->tf);
+               ata_tf_to_host(ap, &qc->tf);
 
                if (qc->tf.flags & ATA_TFLAG_WRITE) {
                        /* PIO data out protocol */
@@ -3761,7 +3724,7 @@ int ata_qc_issue_prot(struct ata_queued_cmd *qc)
                if (qc->tf.flags & ATA_TFLAG_POLLING)
                        ata_qc_set_polling(qc);
 
-               ata_tf_to_host_nolock(ap, &qc->tf);
+               ata_tf_to_host(ap, &qc->tf);
                ap->hsm_task_state = HSM_ST_FIRST;
 
                /* send cdb by polling if no cdb interrupt */
@@ -4342,8 +4305,6 @@ static void ata_host_init(struct ata_port *ap, struct Scsi_Host *host,
        host->unique_id = ata_unique_id++;
        host->max_cmd_len = 12;
 
-       scsi_assign_lock(host, &host_set->lock);
-
        ap->flags = ATA_FLAG_PORT_DISABLED;
        ap->id = host->unique_id;
        ap->host = host;