Re: [PATCH] libata: implement ata_wait_after_reset()

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Tejun Heo wrote:
-	msleep(150);
+	/* wait a while before checking status */
+	ata_wait_after_reset(ap, deadline);
[...]
-	msleep(150);
+	/* wait a while before checking status */
+	ata_wait_after_reset(ap, deadline);
/* Before we perform post reset processing we want to see if
 	 * the bus shows 0xFF because the odd clown forgets the D7
@@ -3543,8 +3583,8 @@ int sata_std_hardreset(struct ata_port *
 		return 0;
 	}
- /* wait a while before checking status, see SRST for more info */
-	msleep(150);
+	/* wait a while before checking status */
+	ata_wait_after_reset(ap, deadline);
rc = ata_wait_ready(ap, deadline);
[...]
-	msleep(150);
+	/* wait a while before checking status */
+	ata_wait_after_reset(ap, deadline);
/* Before we perform post reset processing we want to see if
 	 * the bus shows 0xFF because the odd clown forgets the D7
Index: work/drivers/ata/sata_inic162x.c
===================================================================
--- work.orig/drivers/ata/sata_inic162x.c
+++ work/drivers/ata/sata_inic162x.c
@@ -446,7 +446,7 @@ static int inic_hardreset(struct ata_por
 		struct ata_taskfile tf;
/* wait a while before checking status */
-		msleep(150);
+		ata_wait_after_reset(ap, deadline);
rc = ata_wait_ready(ap, deadline);
[...]

The main thing that bothers me is not the increase in delay, but the fact that this create converts a delay/Status-poll sequence into a delay/Status-poll/Status-poll sequence.

ata_wait_after_reset() immediately before ata_wait_ready() seems highly redundant. Why not just poll Status once?

	Jeff



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