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| author | Geert Uytterhoeven <geert@linux-m68k.org> | 2009-05-17 13:35:07 +0200 |
|---|---|---|
| committer | Geert Uytterhoeven <geert@linux-m68k.org> | 2010-05-26 19:51:07 +0200 |
| commit | a8169e6057e9b7dd41c9e3b7a41efebc4bd859c9 (patch) | |
| tree | e4e06ba187020ecbf54b2e9e70ef84a61046eb3a /drivers/scsi/a3000.c | |
| parent | 4616ac7e84c58660a11b991460cf2611552faa76 (diff) | |
| download | lwn-a8169e6057e9b7dd41c9e3b7a41efebc4bd859c9.tar.gz lwn-a8169e6057e9b7dd41c9e3b7a41efebc4bd859c9.zip | |
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>
Diffstat (limited to 'drivers/scsi/a3000.c')
| -rw-r--r-- | drivers/scsi/a3000.c | 38 |
1 files changed, 19 insertions, 19 deletions
diff --git a/drivers/scsi/a3000.c b/drivers/scsi/a3000.c index ae9b25a3e3e7..eabc41b65dad 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 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); - 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 void dma_stop(struct Scsi_Host *instance, struct scsi_cmnd *SCpnt, 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 @@ static int __init a3000_detect(struct scsi_host_template *tpnt) 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 = ®s->SASR; wdregs.SCMD = ®s->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; |