patch 7/7:
ack unexpected INTRQ when polling.
(Some device asserts INTRQ even if polling and nIEN = 1.
http://bugzilla.kernel.org/show_bug.cgi?id=8441)
Signed-off-by: Albert Lee <[EMAIL PROTECTED]>
---
diff -Nrup 06_irq_wq/drivers/ata/libata-core.c
07_ack_random_irq/drivers/ata/libata-core.c
--- 06_irq_wq/drivers/ata/libata-core.c 2007-05-11 11:54:56.000000000 +0800
+++ 07_ack_random_irq/drivers/ata/libata-core.c 2007-05-11 15:40:37.000000000
+0800
@@ -5211,9 +5211,12 @@ inline unsigned int ata_host_intr (struc
if (ap->pflags & ATA_PFLAG_HSM_WQ)
goto idle_irq;
- /* polling */
- if (qc->tf.flags & ATA_TFLAG_POLLING)
+ /* polling, while HSM not yet active in wq */
+ if (qc->tf.flags & ATA_TFLAG_POLLING) {
+ /* ack random irq */
+ ata_chk_status(ap);
goto idle_irq;
+ }
/* Check whether we are expecting interrupt in this state */
switch (ap->hsm_task_state) {
-
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