Dan Williams wrote:
The error interrupt handling code is still in there and is working.  The
following patch works for me.

---
sata_vsc: handle unexpected interrupts when executing a polled IDENTIFY

From: Dan Williams <[EMAIL PROTECTED]>

Signed-off-by: Dan Williams <[EMAIL PROTECTED]>
---

 drivers/ata/sata_vsc.c |    4 +++-
 1 files changed, 3 insertions(+), 1 deletions(-)

diff --git a/drivers/ata/sata_vsc.c b/drivers/ata/sata_vsc.c
index 0fa1b89..7425d62 100644
--- a/drivers/ata/sata_vsc.c
+++ b/drivers/ata/sata_vsc.c
@@ -258,7 +258,9 @@ static irqreturn_t vsc_sata_interrupt (int irq, void 
*dev_instance)
                                        /* Clear interrupt status */
                                        ata_chk_status(ap);
                                        handled++;
-                               }
+                               } else if (qc->tf.command == ATA_CMD_ID_ATA)
+                                       /* 31244 interrupts on polled IDENTIFY 
commands */
+                                       ata_chk_status(ap);
                        }
                }
        }

I see.  Can you please...

1. move per-port interrupt handling code (everything inside the for loop) to a separate function

2. make the if/else control block look like the following?

  if (unlikely(no irq))
        return 0;
  if (intr command in progress)
        return ata_host_intr()
  if (error_intr())
        error intr handling sans irq clearing.

  clear IRQ
  return 1;

3. Post the patch (probably two patches, one to separate out vsc_port_intr() and another to fix the problem) with proper subject lines.

Thanks.

--
tejun

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