string: factorize skip_spaces and export it to be generally available

[safe/jmp/linux-2.6] / drivers / scsi / a3000.c

diff --git a/drivers/scsi/a3000.c b/drivers/scsi/a3000.c
index 306caf5..6970ce8 100644 (file)
--- a/drivers/scsi/a3000.c
+++ b/drivers/scsi/a3000.c
@@ -1,7 +1,6 @@
 #include <linux/types.h>
 #include <linux/mm.h>
 #include <linux/blkdev.h>
-#include <linux/sched.h>
 #include <linux/ioport.h>
 #include <linux/init.h>
 #include <linux/spinlock.h>
@@ -26,7 +25,9 @@
 
 static struct Scsi_Host *a3000_host = NULL;
 
-static irqreturn_t a3000_intr (int irq, void *dummy, struct pt_regs *fp)
+static int a3000_release(struct Scsi_Host *instance);
+
+static irqreturn_t a3000_intr (int irq, void *dummy)
 {
        unsigned long flags;
        unsigned int status = DMA(a3000_host)->ISTR;
@@ -44,7 +45,7 @@ static irqreturn_t a3000_intr (int irq, void *dummy, struct pt_regs *fp)
        return IRQ_NONE;
 }
 
-static int dma_setup (Scsi_Cmnd *cmd, int dir_in)
+static int dma_setup(struct scsi_cmnd *cmd, int dir_in)
 {
     unsigned short cntr = CNTR_PDMD | CNTR_INTEN;
     unsigned long addr = virt_to_bus(cmd->SCp.ptr);
@@ -55,8 +56,7 @@ static int dma_setup (Scsi_Cmnd *cmd, int dir_in)
      * end of a physical memory chunk, then allocate a bounce
      * buffer
      */
-    if (addr & A3000_XFER_MASK ||
-       (!dir_in && mm_end_of_chunk (addr, cmd->SCp.this_residual)))
+    if (addr & A3000_XFER_MASK)
     {
        HDATA(a3000_host)->dma_bounce_len = (cmd->SCp.this_residual + 511)
            & ~0x1ff;
@@ -71,12 +71,8 @@ static int dma_setup (Scsi_Cmnd *cmd, int dir_in)
 
        if (!dir_in) {
            /* copy to bounce buffer for a write */
-           if (cmd->use_sg) {
-               memcpy (HDATA(a3000_host)->dma_bounce_buffer,
-                       cmd->SCp.ptr, cmd->SCp.this_residual);
-           } else
-               memcpy (HDATA(a3000_host)->dma_bounce_buffer,
-                       cmd->request_buffer, cmd->request_bufflen);
+           memcpy (HDATA(a3000_host)->dma_bounce_buffer,
+               cmd->SCp.ptr, cmd->SCp.this_residual);
        }
 
        addr = virt_to_bus(HDATA(a3000_host)->dma_bounce_buffer);
@@ -110,8 +106,8 @@ static int dma_setup (Scsi_Cmnd *cmd, int dir_in)
     return 0;
 }
 
-static void dma_stop (struct Scsi_Host *instance, Scsi_Cmnd *SCpnt,
-                     int status)
+static void dma_stop(struct Scsi_Host *instance, struct scsi_cmnd *SCpnt,
+                    int status)
 {
     /* disable SCSI interrupts */
     unsigned short cntr = CNTR_PDMD;
@@ -147,7 +143,7 @@ static void dma_stop (struct Scsi_Host *instance, Scsi_Cmnd *SCpnt,
 
     /* copy from a bounce buffer, if necessary */
     if (status && HDATA(instance)->dma_bounce_buffer) {
-       if (SCpnt && SCpnt->use_sg) {
+       if (SCpnt) {
            if (HDATA(instance)->dma_dir && SCpnt)
                memcpy (SCpnt->SCp.ptr,
                        HDATA(instance)->dma_bounce_buffer,
@@ -156,11 +152,6 @@ static void dma_stop (struct Scsi_Host *instance, Scsi_Cmnd *SCpnt,
            HDATA(instance)->dma_bounce_buffer = NULL;
            HDATA(instance)->dma_bounce_len = 0;
        } else {
-           if (HDATA(instance)->dma_dir && SCpnt)
-               memcpy (SCpnt->request_buffer,
-                       HDATA(instance)->dma_bounce_buffer,
-                       SCpnt->request_bufflen);
-
            kfree (HDATA(instance)->dma_bounce_buffer);
            HDATA(instance)->dma_bounce_buffer = NULL;
            HDATA(instance)->dma_bounce_len = 0;
@@ -168,7 +159,7 @@ static void dma_stop (struct Scsi_Host *instance, Scsi_Cmnd *SCpnt,
     }
 }
 
-int __init a3000_detect(Scsi_Host_Template *tpnt)
+static int __init a3000_detect(struct scsi_host_template *tpnt)
 {
     wd33c93_regs regs;
 
@@ -189,8 +180,11 @@ int __init a3000_detect(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;
     wd33c93_init(a3000_host, regs, dma_setup, dma_stop, WD33C93_FS_12_15);
-    if (request_irq(IRQ_AMIGA_PORTS, a3000_intr, SA_SHIRQ, "A3000 SCSI",
+    if (request_irq(IRQ_AMIGA_PORTS, a3000_intr, IRQF_SHARED, "A3000 SCSI",
                    a3000_intr))
         goto fail_irq;
     DMA(a3000_host)->CNTR = CNTR_PDMD | CNTR_INTEN;
@@ -205,7 +199,7 @@ fail_register:
     return 0;
 }
 
-static int a3000_bus_reset(Scsi_Cmnd *cmd)
+static int a3000_bus_reset(struct scsi_cmnd *cmd)
 {
        /* FIXME perform bus-specific reset */
        
@@ -221,7 +215,7 @@ static int a3000_bus_reset(Scsi_Cmnd *cmd)
 
 #define HOSTS_C
 
-static Scsi_Host_Template driver_template = {
+static struct scsi_host_template driver_template = {
        .proc_name              = "A3000",
        .name                   = "Amiga 3000 built-in SCSI",
        .detect                 = a3000_detect,
@@ -240,7 +234,7 @@ static Scsi_Host_Template driver_template = {
 
 #include "scsi_module.c"
 
-int a3000_release(struct Scsi_Host *instance)
+static int a3000_release(struct Scsi_Host *instance)
 {
     wd33c93_release();
     DMA(instance)->CNTR = 0;