1 files changed, 28 insertions, 25 deletions

diff --git a/drivers/scsi/a3000.c b/drivers/scsi/a3000.c
index 31434f7c3685..bc6eb69f5fd0 100644
--- a/drivers/scsi/a3000.c
+++ b/drivers/scsi/a3000.c
@@ -23,7 +23,6 @@
 
 
 #define DMA(ptr)        ((a3000_scsiregs *)((ptr)->base))
-#define HDATA(ptr)      ((struct WD33C93_hostdata *)((ptr)->hostdata))
 
 static struct Scsi_Host *a3000_host = NULL;
 
@@ -48,6 +47,7 @@ static irqreturn_t a3000_intr(int irq, void *dummy)
 
 static int dma_setup(struct scsi_cmnd *cmd, int dir_in)
 {
+        struct WD33C93_hostdata *hdata = shost_priv(a3000_host);
         unsigned short cntr = CNTR_PDMD | CNTR_INTEN;
         unsigned long addr = virt_to_bus(cmd->SCp.ptr);
 
@@ -58,24 +58,23 @@ static int dma_setup(struct scsi_cmnd *cmd, int dir_in)
          * buffer
          */
         if (addr & A3000_XFER_MASK) {
-                HDATA(a3000_host)->dma_bounce_len =
-                        (cmd->SCp.this_residual + 511) & ~0x1ff;
-                HDATA(a3000_host)->dma_bounce_buffer =
-                        kmalloc(HDATA(a3000_host)->dma_bounce_len, GFP_KERNEL);
+                hdata->dma_bounce_len = (cmd->SCp.this_residual + 511) & ~0x1ff;
+                hdata->dma_bounce_buffer = kmalloc(hdata->dma_bounce_len,
+                                                   GFP_KERNEL);
 
                 /* can't allocate memory; use PIO */
-                if (!HDATA(a3000_host)->dma_bounce_buffer) {
-                        HDATA(a3000_host)->dma_bounce_len = 0;
+                if (!hdata->dma_bounce_buffer) {
+                        hdata->dma_bounce_len = 0;
                         return 1;
                 }
 
                 if (!dir_in) {
                         /* copy to bounce buffer for a write */
-                        memcpy(HDATA(a3000_host)->dma_bounce_buffer,
-                               cmd->SCp.ptr, cmd->SCp.this_residual);
+                        memcpy(hdata->dma_bounce_buffer, cmd->SCp.ptr,
+                               cmd->SCp.this_residual);
                 }
 
-                addr = virt_to_bus(HDATA(a3000_host)->dma_bounce_buffer);
+                addr = virt_to_bus(hdata->dma_bounce_buffer);
         }
 
         /* setup dma direction */
@@ -83,7 +82,7 @@ static int dma_setup(struct scsi_cmnd *cmd, int dir_in)
                 cntr |= CNTR_DDIR;
 
         /* remember direction */
-        HDATA(a3000_host)->dma_dir = dir_in;
+        hdata->dma_dir = dir_in;
 
         DMA(a3000_host)->CNTR = cntr;
 
@@ -110,17 +109,19 @@ static int dma_setup(struct scsi_cmnd *cmd, int dir_in)
 static void dma_stop(struct Scsi_Host *instance, struct scsi_cmnd *SCpnt,
                      int status)
 {
+        struct WD33C93_hostdata *hdata = shost_priv(instance);
+
         /* disable SCSI interrupts */
         unsigned short cntr = CNTR_PDMD;
 
-        if (!HDATA(instance)->dma_dir)
+        if (!hdata->dma_dir)
                 cntr |= CNTR_DDIR;
 
         DMA(instance)->CNTR = cntr;
         mb();                   /* make sure CNTR is updated before next IO */
 
         /* flush if we were reading */
-        if (HDATA(instance)->dma_dir) {
+        if (hdata->dma_dir) {
                 DMA(instance)->FLUSH = 1;
                 mb();           /* don't allow prefetch */
                 while (!(DMA(instance)->ISTR & ISTR_FE_FLG))
@@ -143,19 +144,19 @@ static void dma_stop(struct Scsi_Host *instance, struct scsi_cmnd *SCpnt,
         mb();                   /* make sure CNTR is updated before next IO */
 
         /* copy from a bounce buffer, if necessary */
-        if (status && HDATA(instance)->dma_bounce_buffer) {
+        if (status && hdata->dma_bounce_buffer) {
                 if (SCpnt) {
-                        if (HDATA(instance)->dma_dir && SCpnt)
+                        if (hdata->dma_dir && SCpnt)
                                 memcpy(SCpnt->SCp.ptr,
-                                       HDATA(instance)->dma_bounce_buffer,
+                                       hdata->dma_bounce_buffer,
                                        SCpnt->SCp.this_residual);
-                        kfree(HDATA(instance)->dma_bounce_buffer);
-                        HDATA(instance)->dma_bounce_buffer = NULL;
-                        HDATA(instance)->dma_bounce_len = 0;
+                        kfree(hdata->dma_bounce_buffer);
+                        hdata->dma_bounce_buffer = NULL;
+                        hdata->dma_bounce_len = 0;
                 } else {
-                        kfree(HDATA(instance)->dma_bounce_buffer);
-                        HDATA(instance)->dma_bounce_buffer = NULL;
-                        HDATA(instance)->dma_bounce_len = 0;
+                        kfree(hdata->dma_bounce_buffer);
+                        hdata->dma_bounce_buffer = NULL;
+                        hdata->dma_bounce_len = 0;
                 }
         }
 }
@@ -163,6 +164,7 @@ static void dma_stop(struct Scsi_Host *instance, struct scsi_cmnd *SCpnt,
 static int __init a3000_detect(struct scsi_host_template *tpnt)
 {
         wd33c93_regs regs;
+        struct WD33C93_hostdata *hdata;
 
         if (!MACH_IS_AMIGA || !AMIGAHW_PRESENT(A3000_SCSI))
                 return 0;
@@ -181,9 +183,10 @@ static int __init a3000_detect(struct scsi_host_template *tpnt)
         DMA(a3000_host)->DAWR = DAWR_A3000;
         regs.SASR = &(DMA(a3000_host)->SASR);
         regs.SCMD = &(DMA(a3000_host)->SCMD);
-        HDATA(a3000_host)->no_sync = 0xff;
-        HDATA(a3000_host)->fast = 0;
-        HDATA(a3000_host)->dma_mode = CTRL_DMA;
+        hdata = shost_priv(a3000_host);
+        hdata->no_sync = 0xff;
+        hdata->fast = 0;
+        hdata->dma_mode = CTRL_DMA;
         wd33c93_init(a3000_host, regs, dma_setup, dma_stop, WD33C93_FS_12_15);
         if (request_irq(IRQ_AMIGA_PORTS, a3000_intr, IRQF_SHARED, "A3000 SCSI",
                         a3000_intr))