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path: root/drivers/scsi/esp_scsi.c
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Diffstat (limited to 'drivers/scsi/esp_scsi.c')
-rw-r--r--drivers/scsi/esp_scsi.c30
1 files changed, 13 insertions, 17 deletions
diff --git a/drivers/scsi/esp_scsi.c b/drivers/scsi/esp_scsi.c
index 71caf2ded6b..77b06a983fa 100644
--- a/drivers/scsi/esp_scsi.c
+++ b/drivers/scsi/esp_scsi.c
@@ -324,17 +324,14 @@ static void esp_reset_esp(struct esp *esp)
static void esp_map_dma(struct esp *esp, struct scsi_cmnd *cmd)
{
struct esp_cmd_priv *spriv = ESP_CMD_PRIV(cmd);
- struct scatterlist *sg = cmd->request_buffer;
+ struct scatterlist *sg = scsi_sglist(cmd);
int dir = cmd->sc_data_direction;
int total, i;
if (dir == DMA_NONE)
return;
- BUG_ON(cmd->use_sg == 0);
-
- spriv->u.num_sg = esp->ops->map_sg(esp, sg,
- cmd->use_sg, dir);
+ spriv->u.num_sg = esp->ops->map_sg(esp, sg, scsi_sg_count(cmd), dir);
spriv->cur_residue = sg_dma_len(sg);
spriv->cur_sg = sg;
@@ -407,8 +404,7 @@ static void esp_unmap_dma(struct esp *esp, struct scsi_cmnd *cmd)
if (dir == DMA_NONE)
return;
- esp->ops->unmap_sg(esp, cmd->request_buffer,
- spriv->u.num_sg, dir);
+ esp->ops->unmap_sg(esp, scsi_sglist(cmd), spriv->u.num_sg, dir);
}
static void esp_save_pointers(struct esp *esp, struct esp_cmd_entry *ent)
@@ -921,7 +917,7 @@ static void esp_event_queue_full(struct esp *esp, struct esp_cmd_entry *ent)
static int esp_queuecommand(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
{
struct scsi_device *dev = cmd->device;
- struct esp *esp = host_to_esp(dev->host);
+ struct esp *esp = shost_priv(dev->host);
struct esp_cmd_priv *spriv;
struct esp_cmd_entry *ent;
@@ -2357,7 +2353,7 @@ EXPORT_SYMBOL(scsi_esp_unregister);
static int esp_slave_alloc(struct scsi_device *dev)
{
- struct esp *esp = host_to_esp(dev->host);
+ struct esp *esp = shost_priv(dev->host);
struct esp_target_data *tp = &esp->target[dev->id];
struct esp_lun_data *lp;
@@ -2381,7 +2377,7 @@ static int esp_slave_alloc(struct scsi_device *dev)
static int esp_slave_configure(struct scsi_device *dev)
{
- struct esp *esp = host_to_esp(dev->host);
+ struct esp *esp = shost_priv(dev->host);
struct esp_target_data *tp = &esp->target[dev->id];
int goal_tags, queue_depth;
@@ -2423,7 +2419,7 @@ static void esp_slave_destroy(struct scsi_device *dev)
static int esp_eh_abort_handler(struct scsi_cmnd *cmd)
{
- struct esp *esp = host_to_esp(cmd->device->host);
+ struct esp *esp = shost_priv(cmd->device->host);
struct esp_cmd_entry *ent, *tmp;
struct completion eh_done;
unsigned long flags;
@@ -2539,7 +2535,7 @@ out_failure:
static int esp_eh_bus_reset_handler(struct scsi_cmnd *cmd)
{
- struct esp *esp = host_to_esp(cmd->device->host);
+ struct esp *esp = shost_priv(cmd->device->host);
struct completion eh_reset;
unsigned long flags;
@@ -2575,7 +2571,7 @@ static int esp_eh_bus_reset_handler(struct scsi_cmnd *cmd)
/* All bets are off, reset the entire device. */
static int esp_eh_host_reset_handler(struct scsi_cmnd *cmd)
{
- struct esp *esp = host_to_esp(cmd->device->host);
+ struct esp *esp = shost_priv(cmd->device->host);
unsigned long flags;
spin_lock_irqsave(esp->host->host_lock, flags);
@@ -2615,7 +2611,7 @@ EXPORT_SYMBOL(scsi_esp_template);
static void esp_get_signalling(struct Scsi_Host *host)
{
- struct esp *esp = host_to_esp(host);
+ struct esp *esp = shost_priv(host);
enum spi_signal_type type;
if (esp->flags & ESP_FLAG_DIFFERENTIAL)
@@ -2629,7 +2625,7 @@ static void esp_get_signalling(struct Scsi_Host *host)
static void esp_set_offset(struct scsi_target *target, int offset)
{
struct Scsi_Host *host = dev_to_shost(target->dev.parent);
- struct esp *esp = host_to_esp(host);
+ struct esp *esp = shost_priv(host);
struct esp_target_data *tp = &esp->target[target->id];
tp->nego_goal_offset = offset;
@@ -2639,7 +2635,7 @@ static void esp_set_offset(struct scsi_target *target, int offset)
static void esp_set_period(struct scsi_target *target, int period)
{
struct Scsi_Host *host = dev_to_shost(target->dev.parent);
- struct esp *esp = host_to_esp(host);
+ struct esp *esp = shost_priv(host);
struct esp_target_data *tp = &esp->target[target->id];
tp->nego_goal_period = period;
@@ -2649,7 +2645,7 @@ static void esp_set_period(struct scsi_target *target, int period)
static void esp_set_width(struct scsi_target *target, int width)
{
struct Scsi_Host *host = dev_to_shost(target->dev.parent);
- struct esp *esp = host_to_esp(host);
+ struct esp *esp = shost_priv(host);
struct esp_target_data *tp = &esp->target[target->id];
tp->nego_goal_width = (width ? 1 : 0);