[PATCH] sil24: ignore non-error exception irqs (ad6e90f6) · Commits · 戴 / test

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 <htejun@gmail.com> sata_sil24.c | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-) Signed-off-by:

Jeff Garzik <jgarzik@pobox.com>

drivers/scsi/sata_sil24.c

+10 −1

Original line number	Diff line number	Diff line
		@@ -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)

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