[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 <htejun@gmail.com> sata_sil24.c | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-) Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
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@ -489,12 +489,21 @@ static void sil24_error_intr(struct ata_port *ap, u32 slot_stat)
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u32 irq_stat, cmd_err, sstatus, serror;
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irq_stat = readl(port + PORT_IRQ_STAT);
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writel(irq_stat, port + PORT_IRQ_STAT); /* clear irq */
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if (!(irq_stat & PORT_IRQ_ERROR)) {
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/* ignore non-completion, non-error irqs for now */
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printk(KERN_WARNING DRV_NAME
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"ata%u: non-error exception irq (irq_stat %x)\n",
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ap->id, irq_stat);
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return;
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}
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cmd_err = readl(port + PORT_CMD_ERR);
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sstatus = readl(port + PORT_SSTATUS);
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serror = readl(port + PORT_SERROR);
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/* Clear IRQ/errors */
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writel(irq_stat, port + PORT_IRQ_STAT);
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if (cmd_err)
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writel(cmd_err, port + PORT_CMD_ERR);
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if (serror)
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