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linux/drivers/usb/host
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Alan Stern fdc03438f5 USB: revert periodic scheduling bugfix 
This patch reverts commit 3e619d0415
(USB: EHCI: fix bug in scheduling periodic split transfers).  The
commit was valid -- it fixed a real bug -- but the periodic scheduler
in ehci-hcd is in such bad shape (especially the part that handles
split transactions) that fixing one bug is very likely to cause
another to surface.  That's what happened in this case; the result was
choppy and noisy playback on certain 24-bit audio devices.

The only real fix will be to rewrite this entire section of code.  My
next project...

This fixes https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1136110.

Thanks to Tim Richardson for extra testing and feedback, and to Joseph
Salisbury and Tyson Tan for tracking down the original source of the
problem.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
CC: Joseph Salisbury <joseph.salisbury@canonical.com>
CC: Tim Richardson <tim@tim-richardson.net>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-05-29 10:41:06 +09:00
..
whci
bcma-hcd.c usb: remove use of __devexit 2012-11-21 13:27:17 -08:00
ehci-atmel.c USB: set device dma_mask without reference to global data 2013-05-16 17:30:52 -07:00
ehci-dbg.c USB: EHCI: convert singly-linked lists to list_heads 2013-03-25 13:35:05 -07:00
ehci-fsl.c EHCI: Quirk flag for port power handling on overcurrent. 2013-04-03 11:38:53 -07:00
ehci-fsl.h
ehci-grlib.c usb: Convert to devm_ioremap_resource() 2013-01-22 11:41:58 -08:00
ehci-hcd.c USB: EHCI: remove bogus #error 2013-05-16 17:29:51 -07:00
ehci-hub.c EHCI: Quirk flag for port power handling on overcurrent. 2013-04-03 11:38:53 -07:00
ehci-mem.c
ehci-msm.c USB: EHCI: make ehci-msm a separate driver 2013-04-08 09:40:20 -07:00
ehci-mv.c usb: patches for v3.10 merge window 2013-04-05 15:18:00 -07:00
ehci-mxc.c USB: Fix initconst in ehci driver 2013-04-23 10:10:29 -07:00
ehci-octeon.c USB: EHCI: remove ehci_port_power() routine 2012-10-31 12:48:07 -07:00
ehci-omap.c USB: set device dma_mask without reference to global data 2013-05-16 17:30:52 -07:00
ehci-orion.c USB: set device dma_mask without reference to global data 2013-05-16 17:30:52 -07:00
ehci-pci.c USB: Fix initconst in ehci driver 2013-04-23 10:10:29 -07:00
ehci-platform.c USB: Fix initconst in ehci driver 2013-04-23 10:10:29 -07:00
ehci-pmcmsp.c USB: EHCI: remove ehci_port_power() routine 2012-10-31 12:48:07 -07:00
ehci-ppc-of.c usb: Convert to devm_ioremap_resource() 2013-01-22 11:41:58 -08:00
ehci-ps3.c usb: PS3 EHCI remove unneeded ehci_shutdown 2013-04-01 12:32:43 -07:00
ehci-q.c usb: ehci: mark unlink_empty_async_suspended() as __maybe_unused 2013-03-28 14:49:53 -07:00
ehci-s5p.c usb: ehci-s5p: fix memleak when fallback to pdata 2013-05-16 17:35:13 -07:00
ehci-sched.c USB: revert periodic scheduling bugfix 2013-05-29 10:41:06 +09:00
ehci-sead3.c usb: Convert to devm_ioremap_resource() 2013-01-22 11:41:58 -08:00
ehci-sh.c usb: echi-sh: Remove driver variable which is not used 2013-03-28 11:14:47 -07:00
ehci-spear.c USB: set device dma_mask without reference to global data 2013-05-16 17:30:52 -07:00
ehci-sysfs.c
ehci-tegra.c USB: set device dma_mask without reference to global data 2013-05-16 17:30:52 -07:00
ehci-tilegx.c usb: tilegx: fix memleak when create hcd fail 2013-05-09 13:56:40 -04:00
ehci-timer.c USB: EHCI: improve end_unlink_async() 2013-03-25 13:36:32 -07:00
ehci-w90x900.c usb: remove use of __devexit 2012-11-21 13:27:17 -08:00
ehci-xilinx-of.c usb: Convert to devm_ioremap_resource() 2013-01-22 11:41:58 -08:00
ehci.h EHCI: Quirk flag for port power handling on overcurrent. 2013-04-03 11:38:53 -07:00
fhci-dbg.c
fhci-hcd.c usb: remove use of __devexit 2012-11-21 13:27:17 -08:00
fhci-hub.c
fhci-mem.c
fhci-q.c
fhci-sched.c
fhci-tds.c
fhci.h
fsl-mph-dr-of.c USB: fsl-mph-dr-of: fix regression on mpc5121e 2013-01-11 16:01:06 -08:00
hwa-hc.c
imx21-dbg.c
imx21-hcd.c usb: imx21-hcd: Include missing linux/module.h 2013-01-11 12:01:09 -08:00
imx21-hcd.h ARM: imx: move platform_data definitions 2012-09-14 11:17:21 +02:00
isp116x-hcd.c usb: remove use of __devinit 2012-11-21 13:27:16 -08:00
isp116x.h
isp1362-hcd.c procfs: new helper - PDE_DATA(inode) 2013-04-09 14:13:32 -04:00
isp1362.h
isp1760-hcd.c USB: remove remaining instances of USB_SUSPEND 2013-05-15 13:44:44 -04:00
isp1760-hcd.h
isp1760-if.c usb: isp1760-if: fix memleak when platform_get_resource fail 2013-05-16 17:35:13 -07:00
Kconfig USB: fix Kconfig logic for USB_UHCI_HCD 2013-05-15 13:41:39 -04:00
Makefile USB: EHCI: make ehci-msm a separate driver 2013-04-08 09:40:20 -07:00
octeon2-common.c
ohci-at91.c USB: set device dma_mask without reference to global data 2013-05-16 17:30:52 -07:00
ohci-da8xx.c ARM: davinci: move platform_data definitions 2012-09-14 11:16:54 +02:00
ohci-dbg.c
ohci-ep93xx.c usb: remove use of __devinit 2012-11-21 13:27:16 -08:00
ohci-exynos.c USB: set device dma_mask without reference to global data 2013-05-16 17:30:52 -07:00
ohci-hcd.c USB: OHCI: fix logic for scheduling isochronous URBs 2013-05-15 13:42:45 -04:00
ohci-hub.c USB: remove CONFIG_USB_SUSPEND option 2013-03-28 11:10:22 -07:00
ohci-jz4740.c usb: remove use of __devexit 2012-11-21 13:27:17 -08:00
ohci-mem.c
ohci-nxp.c USB fixes for 3.10-rc2 2013-05-23 09:23:32 -07:00
ohci-octeon.c usb: remove use of __devinit 2012-11-21 13:27:16 -08:00
ohci-omap3.c USB: set device dma_mask without reference to global data 2013-05-16 17:30:52 -07:00
ohci-omap.c ARM: arm-soc: Header cleanups 2012-12-12 11:45:16 -08:00
ohci-pci.c usb: remove use of __devinit 2012-11-21 13:27:16 -08:00
ohci-platform.c usb: Convert to devm_ioremap_resource() 2013-01-22 11:41:58 -08:00
ohci-ppc-of.c usb: remove use of __devinit 2012-11-21 13:27:16 -08:00
ohci-ps3.c usb: remove use of __devinit 2012-11-21 13:27:16 -08:00
ohci-pxa27x.c USB: set device dma_mask without reference to global data 2013-05-16 17:30:52 -07:00
ohci-q.c USB: ohci: set urb->hcpriv = NULL immediately, after free it 2013-01-11 16:03:38 -08:00
ohci-s3c2410.c usb: Convert to devm_ioremap_resource() 2013-01-22 11:41:58 -08:00
ohci-sa1111.c usb: remove use of __devinit 2012-11-21 13:27:16 -08:00
ohci-sm501.c USB: OHCI: sm501: fix build failure after ohci_finish_controller_resume removal 2012-10-23 10:18:53 -07:00
ohci-spear.c USB: set device dma_mask without reference to global data 2013-05-16 17:30:52 -07:00
ohci-tilegx.c usb: tilegx: fix memleak when create hcd fail 2013-05-09 13:56:40 -04:00
ohci-tmio.c usb: host: ohci-tmio: fix compile warning 2013-01-11 16:22:53 -08:00
ohci.h
oxu210hp-hcd.c USB: remove remaining instances of USB_SUSPEND 2013-05-15 13:44:44 -04:00
oxu210hp.h
pci-quirks.c usb: Prevent dead ports when xhci is not enabled 2013-01-24 09:56:19 -08:00
pci-quirks.h
r8a66597-hcd.c usb: remove use of __devexit 2012-11-21 13:27:17 -08:00
r8a66597.h
sl811_cs.c drivers/usb: use module_pcmcia_driver() in pcmcia drivers 2013-03-15 12:26:38 -07:00
sl811-hcd.c USB: remove remaining instances of USB_SUSPEND 2013-05-15 13:44:44 -04:00
sl811.h
ssb-hcd.c usb: remove use of __devexit 2012-11-21 13:27:17 -08:00
u132-hcd.c USB: remove CONFIG_USB_SUSPEND option 2013-03-28 11:10:22 -07:00
uhci-debug.c USB: uhci: beautify source code 2013-01-24 13:59:26 -08:00
uhci-grlib.c usb: remove use of __devinit 2012-11-21 13:27:16 -08:00
uhci-hcd.c Merge 3.8-rc5 into usb-next 2013-01-25 12:41:02 -08:00
uhci-hcd.h USB: UHCI: remove unused definition 2013-01-24 13:42:09 -08:00
uhci-hub.c USB: UHCI: fix for suspend of virtual HP controller 2013-05-15 13:41:40 -04:00
uhci-pci.c
uhci-platform.c USB: set device dma_mask without reference to global data 2013-05-16 17:30:52 -07:00
uhci-q.c USB: fix latency in uhci-hcd and ohci-hcd 2013-05-15 13:42:45 -04:00
xhci-dbg.c xhci: trivial: Remove assigned but unused slot_ctx. 2012-10-25 13:13:48 -07:00
xhci-ext-caps.h
xhci-hub.c USB: remove CONFIG_USB_SUSPEND option 2013-03-28 11:10:22 -07:00
xhci-mem.c xhci: fix list access before init 2013-05-24 09:14:47 -07:00
xhci-pci.c xhci: Disable D3cold for buggy TI redrivers. 2013-05-24 15:23:59 -07:00
xhci-plat.c
xhci-ring.c xhci: Don't warn on empty ring for suspended devices. 2013-03-25 10:39:19 -07:00
xhci.c xhci: Disable D3cold for buggy TI redrivers. 2013-05-24 15:23:59 -07:00
xhci.h xhci: Disable D3cold for buggy TI redrivers. 2013-05-24 15:23:59 -07:00