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usb: ehci: fix comment for EHCI_SHRINK_JIFFIES

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EHCI_SHRINK_JIFFIES should be 5ms, which was just used originally,
and not 200ms, so fix it.

Signed-off-by: Ming Lei <tom.leiming@gmail.com>
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Ming Lei 2011-09-05 21:05:57 +08:00 committed by Greg Kroah-Hartman
parent 9a971dda82
commit fcda37cb42
1 changed files with 1 additions and 1 deletions
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drivers/usb/host/ehci-hcd.c
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@ -95,7 +95,7 @@ static const char hcd_name [] = "ehci_hcd";
#define EHCI_IO_JIFFIES (HZ/10) /* io watchdog > irq_thresh */
#define EHCI_ASYNC_JIFFIES (HZ/20) /* async idle timeout */
#define EHCI_SHRINK_JIFFIES (DIV_ROUND_UP(HZ, 200) + 1)
/* 200-ms async qh unlink delay */
/* 5-ms async qh unlink delay */
/* Initial IRQ latency: faster than hw default */
static int log2_irq_thresh = 0; // 0 to 6