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Commit 914b7012 authored by Alan Stern's avatar Alan Stern Committed by Greg Kroah-Hartman
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USB: EHCI: use the new clear_tt_buffer interface 



This patch (as1256) changes ehci-hcd and all the other drivers in the
EHCI family to make use of the new clear_tt_buffer callbacks.  When a
Clear-TT-Buffer request is in progress for a QH, the QH is not allowed
to be linked into the async schedule until the request is finished.
At that time, if there are any URBs queued for the QH, it is linked
into the async schedule.

Signed-off-by: default avatarAlan Stern <stern@rowland.harvard.edu>
Cc: stable <stable@kernel.org>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
parent cb88a1b8

drivers/usb/host/ehci-au1xxx.c

+2 −0
Original line number Diff line number Diff line
@@ -113,6 +113,8 @@ static const struct hc_driver ehci_au1xxx_hc_driver = { 
	.bus_resume		= ehci_bus_resume,

	.relinquish_port	= ehci_relinquish_port,

	.port_handed_over	= ehci_port_handed_over,



	.clear_tt_buffer_complete	= ehci_clear_tt_buffer_complete,

};



static int ehci_hcd_au1xxx_drv_probe(struct platform_device *pdev)

drivers/usb/host/ehci-fsl.c

+2 −0
Original line number Diff line number Diff line
@@ -325,6 +325,8 @@ static const struct hc_driver ehci_fsl_hc_driver = { 
	.bus_resume = ehci_bus_resume,

	.relinquish_port = ehci_relinquish_port,

	.port_handed_over = ehci_port_handed_over,



	.clear_tt_buffer_complete = ehci_clear_tt_buffer_complete,

};



static int ehci_fsl_drv_probe(struct platform_device *pdev)

drivers/usb/host/ehci-hcd.c

+2 −0
Original line number Diff line number Diff line
@@ -1003,6 +1003,8 @@ ehci_endpoint_disable (struct usb_hcd *hcd, struct usb_host_endpoint *ep) 
		schedule_timeout_uninterruptible(1);

		goto rescan;

	case QH_STATE_IDLE:		/* fully unlinked */

		if (qh->clearing_tt)

			goto idle_timeout;

		if (list_empty (&qh->qtd_list)) {

			qh_put (qh);

			break;

drivers/usb/host/ehci-ixp4xx.c

+2 −0
Original line number Diff line number Diff line
@@ -61,6 +61,8 @@ static const struct hc_driver ixp4xx_ehci_hc_driver = { 
#endif

	.relinquish_port	= ehci_relinquish_port,

	.port_handed_over	= ehci_port_handed_over,



	.clear_tt_buffer_complete	= ehci_clear_tt_buffer_complete,

};



static int ixp4xx_ehci_probe(struct platform_device *pdev)

drivers/usb/host/ehci-orion.c

+2 −0
Original line number Diff line number Diff line
@@ -165,6 +165,8 @@ static const struct hc_driver ehci_orion_hc_driver = { 
	.bus_resume = ehci_bus_resume,

	.relinquish_port = ehci_relinquish_port,

	.port_handed_over = ehci_port_handed_over,



	.clear_tt_buffer_complete = ehci_clear_tt_buffer_complete,

};



static void __init