From: Tejun Heo Date: Thu, 6 Oct 2005 02:43:29 +0000 (+0900) Subject: [PATCH] sil24: ignore non-error exception irqs X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=ad6e90f6d0c4243cc35e07e2681a3323af533ce4;p=openwrt%2Fstaging%2Fblogic.git [PATCH] sil24: ignore non-error exception irqs 01_sil24_ignore-non-error-exception-irqs.patch Do not error-finish commands for non-error exception irqs - just ignore them. This is taken from Edward's driver. Signed-off-by: Tejun Heo sata_sil24.c | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-) Signed-off-by: Jeff Garzik --- diff --git a/drivers/scsi/sata_sil24.c b/drivers/scsi/sata_sil24.c index d8a2f5f04e82..571302dc48a3 100644 --- a/drivers/scsi/sata_sil24.c +++ b/drivers/scsi/sata_sil24.c @@ -489,12 +489,21 @@ static void sil24_error_intr(struct ata_port *ap, u32 slot_stat) u32 irq_stat, cmd_err, sstatus, serror; irq_stat = readl(port + PORT_IRQ_STAT); + writel(irq_stat, port + PORT_IRQ_STAT); /* clear irq */ + + if (!(irq_stat & PORT_IRQ_ERROR)) { + /* ignore non-completion, non-error irqs for now */ + printk(KERN_WARNING DRV_NAME + "ata%u: non-error exception irq (irq_stat %x)\n", + ap->id, irq_stat); + return; + } + cmd_err = readl(port + PORT_CMD_ERR); sstatus = readl(port + PORT_SSTATUS); serror = readl(port + PORT_SERROR); /* Clear IRQ/errors */ - writel(irq_stat, port + PORT_IRQ_STAT); if (cmd_err) writel(cmd_err, port + PORT_CMD_ERR); if (serror)