commit a8169e6057e9b7dd41c9e3b7a41efebc4bd859c9
author Geert Uytterhoeven <geert@linux-m68k.org> Sun May 17 13:35:07 2009 +0200
committer Geert Uytterhoeven <geert@linux-m68k.org> Wed May 26 19:51:07 2010 +0200
tree e4e06ba187020ecbf54b2e9e70ef84a61046eb3a
parent 4616ac7e84c58660a11b991460cf2611552faa76

m68k/scsi: a3000 - Kill static global a3000_host

Acked-by: James Bottomley <James.Bottomley@suse.de>
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>

drivers/scsi/a3000.c

diff --git a/drivers/scsi/a3000.c b/drivers/scsi/a3000.c
index ae9b25a3..eabc41b 100644
--- a/drivers/scsi/a3000.c
+++ b/drivers/scsi/a3000.c
@@ -22,22 +22,21 @@
 #include <linux/stat.h>
 
 
-static struct Scsi_Host *a3000_host = NULL;
-
 static int a3000_release(struct Scsi_Host *instance);
 
-static irqreturn_t a3000_intr(int irq, void *dummy)
+static irqreturn_t a3000_intr(int irq, void *data)
 {
-	a3000_scsiregs *regs = (a3000_scsiregs *)(a3000_host->base);
+	struct Scsi_Host *instance = data;
+	a3000_scsiregs *regs = (a3000_scsiregs *)(instance->base);
 	unsigned int status = regs->ISTR;
 	unsigned long flags;
 
 	if (!(status & ISTR_INT_P))
 		return IRQ_NONE;
 	if (status & ISTR_INTS) {
-		spin_lock_irqsave(a3000_host->host_lock, flags);
-		wd33c93_intr(a3000_host);
-		spin_unlock_irqrestore(a3000_host->host_lock, flags);
+		spin_lock_irqsave(instance->host_lock, flags);
+		wd33c93_intr(instance);
+		spin_unlock_irqrestore(instance->host_lock, flags);
 		return IRQ_HANDLED;
 	}
 	printk("Non-serviced A3000 SCSI-interrupt? ISTR = %02x\n", status);
@@ -46,8 +45,9 @@
 
 static int dma_setup(struct scsi_cmnd *cmd, int dir_in)
 {
-	struct WD33C93_hostdata *hdata = shost_priv(a3000_host);
-	a3000_scsiregs *regs = (a3000_scsiregs *)(a3000_host->base);
+	struct Scsi_Host *instance = cmd->device->host;
+	struct WD33C93_hostdata *hdata = shost_priv(instance);
+	a3000_scsiregs *regs = (a3000_scsiregs *)(instance->base);
 	unsigned short cntr = CNTR_PDMD | CNTR_INTEN;
 	unsigned long addr = virt_to_bus(cmd->SCp.ptr);
 
@@ -164,6 +164,7 @@
 
 static int __init a3000_detect(struct scsi_host_template *tpnt)
 {
+	struct Scsi_Host *instance;
 	wd33c93_regs wdregs;
 	a3000_scsiregs *regs;
 	struct WD33C93_hostdata *hdata;
@@ -176,31 +177,30 @@
 	tpnt->proc_name = "A3000";
 	tpnt->proc_info = &wd33c93_proc_info;
 
-	a3000_host = scsi_register(tpnt, sizeof(struct WD33C93_hostdata));
-	if (a3000_host == NULL)
+	instance = scsi_register(tpnt, sizeof(struct WD33C93_hostdata));
+	if (instance == NULL)
 		goto fail_register;
 
-	a3000_host->base = ZTWO_VADDR(0xDD0000);
-	a3000_host->irq = IRQ_AMIGA_PORTS;
-	regs = (a3000_scsiregs *)(a3000_host->base);
+	instance->base = ZTWO_VADDR(0xDD0000);
+	instance->irq = IRQ_AMIGA_PORTS;
+	regs = (a3000_scsiregs *)(instance->base);
 	regs->DAWR = DAWR_A3000;
 	wdregs.SASR = &regs->SASR;
 	wdregs.SCMD = &regs->SCMD;
-	hdata = shost_priv(a3000_host);
+	hdata = shost_priv(instance);
 	hdata->no_sync = 0xff;
 	hdata->fast = 0;
 	hdata->dma_mode = CTRL_DMA;
-	wd33c93_init(a3000_host, wdregs, dma_setup, dma_stop,
-		     WD33C93_FS_12_15);
+	wd33c93_init(instance, wdregs, dma_setup, dma_stop, WD33C93_FS_12_15);
 	if (request_irq(IRQ_AMIGA_PORTS, a3000_intr, IRQF_SHARED, "A3000 SCSI",
-			a3000_intr))
+			instance))
 		goto fail_irq;
 	regs->CNTR = CNTR_PDMD | CNTR_INTEN;
 
 	return 1;
 
 fail_irq:
-	scsi_unregister(a3000_host);
+	scsi_unregister(instance);
 fail_register:
 	release_mem_region(0xDD0000, 256);
 	return 0;