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Alan Stern 24f531371d USB: EHCI: accept very late isochronous URBs 
Since commits 4005ad4390 (EHCI: implement new semantics for
URB_ISO_ASAP) and c75c5ab575 (ALSA: USB: adjust for changed 3.8 USB
API) became widely distributed, people have been experiencing problems
with audio transfers.  The slightest underrun causes complete failure,
requiring the audio stream to be restarted.

It turns out that the current isochronous API doesn't handle underruns
in the best way.  The ALSA developers would much rather have transfers
that are submitted too late be accepted and complete in the normal
fashion, rather than being refused outright.

This patch implements the requested approach.  When an isochronous URB
submission is so late that all its scheduled slots have already
expired, a debugging message will be printed in the log and the URB
will be accepted as usual.  Assuming it was submitted by a completion
handler (which is normally the case), it will complete shortly
thereafter with all the usb_iso_packet_descriptor status fields marked
-EXDEV.

This fixes (for ehci-hcd)

	https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1191603

It should be applied to all kernels that include commit 4005ad4390.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Tested-by: Maksim Boyko <maksboyko@yandex.ru>
CC: Clemens Ladisch <clemens@ladisch.de>
CC: <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 		2013-08-12 13:45:26 -07:00
..
whci wusbhc: disable suspend and resume on the root hub. 2013-06-06 12:14:38 -07:00
Kconfig Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus 2013-07-13 14:52:21 -07:00
Makefile USB: EHCI: make ehci-tegra a separate driver 2013-06-17 13:54:48 -07:00
bcma-hcd.c usb: remove use of __devexit 2012-11-21 13:27:17 -08:00
ehci-atmel.c ehci-atmel.c: prepare clk before calling enable 2013-06-24 16:21:52 -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 usb: fsl: add missing platform_driver owner 2013-05-16 17:48:28 -07:00
ehci-fsl.h powerpc/usb: fix bug of CPU hang when missing USB PHY clock 2012-09-05 16:52:08 -07:00
ehci-grlib.c USB: host: use platform_{get,set}_drvdata() 2013-05-30 21:32:54 +09:00
ehci-hcd.c USB: EHCI: make ehci-tegra a separate driver 2013-06-17 13:54:48 -07:00
ehci-hub.c USB: EHCI: Fix resume signalling on remote wakeup 2013-07-22 11:35:34 -07:00
ehci-mem.c USB: EHCI: use hrtimer for (s)iTD deallocation 2012-07-16 16:54:25 -07:00
ehci-msm.c USB: EHCI: make ehci-msm a separate driver 2013-04-08 09:40:20 -07:00
ehci-mv.c USB: ehci-mv: remove unnecessary platform_set_drvdata() 2013-05-16 17:47:14 -07:00
ehci-mxc.c USB: ehci-mxc: remove unnecessary platform_set_drvdata() 2013-05-16 17:47:15 -07:00
ehci-octeon.c USB: ehci-octeon: remove unnecessary platform_set_drvdata() 2013-05-16 17:47:15 -07:00
ehci-omap.c USB: ehci-omap: Tweak PHY initialization sequence 2013-06-17 13:56:25 -07:00
ehci-orion.c Merge 3.10-rc3 into usb-next 2013-05-27 11:00:52 +09:00
ehci-pci.c USB: Fix initconst in ehci driver 2013-04-23 10:10:29 -07:00
ehci-platform.c ARM SoC specific changes 2013-07-02 13:43:38 -07:00
ehci-pmcmsp.c USB: EHCI: Remove double assignment of .start in ehci_msp_hc_driver 2013-06-17 13:56:25 -07:00
ehci-ppc-of.c USB: host: use platform_{get,set}_drvdata() 2013-05-30 21:32:54 +09:00
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: skip phy setup for Exynos5440 based platforms 2013-05-30 21:34:29 +09:00
ehci-sched.c USB: EHCI: accept very late isochronous URBs 2013-08-12 13:45:26 -07:00
ehci-sead3.c USB: ehci-sead3: remove unnecessary platform_set_drvdata() 2013-05-16 17:47:16 -07:00
ehci-sh.c USB: ehci-sh: remove unnecessary platform_set_drvdata() 2013-05-16 17:47:17 -07:00
ehci-spear.c usb: host: ehci-spear: Remove redundant checks 2013-05-30 21:32:53 +09:00
ehci-sysfs.c
…
ehci-tegra.c USB: EHCI: tegra: Fix oops in error cleanup 2013-06-17 13:56:25 -07:00
ehci-tilegx.c usb: host: ehci-tilegx: Remove redundant platform_set_drvdata() 2013-05-17 10:14:52 -07:00
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: host: use platform_{get,set}_drvdata() 2013-05-30 21:32:54 +09:00
ehci.h USB: EHCI: export ehci_handshake for ehci-hcd sub-drivers 2013-06-17 13:54:47 -07:00
fhci-dbg.c USB: FHCI: Reusing QUICC Engine USB Controller registers from immap_qe.h 2012-06-26 19:42:11 -07:00
fhci-hcd.c usb: remove use of __devexit 2012-11-21 13:27:17 -08:00
fhci-hub.c USB: FHCI: Reusing QUICC Engine USB Controller registers from immap_qe.h 2012-06-26 19:42:11 -07:00
fhci-mem.c
…
fhci-q.c
…
fhci-sched.c USB: FHCI: upgrade the isochronous API 2013-05-30 21:34:31 +09:00
fhci-tds.c USB: FHCI: Reusing QUICC Engine USB Controller registers from immap_qe.h 2012-06-26 19:42:11 -07:00
fhci.h USB: FHCI: upgrade the isochronous API 2013-05-30 21:34:31 +09:00
fsl-mph-dr-of.c USB: fsl-mph-dr-of: fix regression on mpc5121e 2013-01-11 16:01:06 -08:00
fusbh200-hcd.c usb: host: fusbh200-hcd: rename two functions 2013-06-03 10:52:40 -07:00
fusbh200.h usb host: Faraday USB2.0 FUSBH200-HCD driver 2013-05-17 10:12:52 -07:00
hwa-hc.c USB: HWA: fix device probe failure 2013-06-24 16:20:43 -07:00
imx21-dbg.c
…
imx21-hcd.c USB: IMX21: upgrade the isochronous API 2013-05-30 21:34:30 +09:00
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: host: use platform_{get,set}_drvdata() 2013-05-30 21:32:54 +09:00
octeon2-common.c
…
ohci-at91.c USB: ohci-at91: prepare clk before calling enable 2013-06-24 16:21:52 -07:00
ohci-da8xx.c usb: host: ohci-da8xx: Remove redundant platform_set_drvdata() 2013-05-17 10:14:52 -07:00
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: remove bogus #error 2013-06-06 11:16:44 -07:00
ohci-hub.c USB: OHCI: prepare to make ohci-hcd a library module 2013-05-30 21:36:03 +09:00
ohci-jz4740.c USB: ohci-jz4740: remove unnecessary platform_set_drvdata() 2013-05-16 17:47:17 -07:00
ohci-mem.c
…
ohci-nxp.c drivers/usb/host: remove leftover release_mem_region 2013-05-30 21:32:52 +09:00
ohci-octeon.c usb: host: ohci-octeon: Remove redundant platform_set_drvdata() 2013-05-17 10:14:52 -07:00
ohci-omap.c usb: host: ohci-omap: Remove redundant platform_set_drvdata() 2013-05-17 10:14:53 -07:00
ohci-omap3.c Merge 3.10-rc3 into usb-next 2013-05-27 11:00:52 +09:00
ohci-pci.c USB: OHCI: make ohci-pci a separate driver 2013-05-30 21:36:03 +09:00
ohci-platform.c USB: OHCI: make ohci-platform a separate driver 2013-06-03 11:02:26 -07:00
ohci-ppc-of.c USB: host: use platform_{get,set}_drvdata() 2013-05-30 21:32:54 +09:00
ohci-ps3.c usb: remove use of __devinit 2012-11-21 13:27:16 -08:00
ohci-pxa27x.c Merge 3.10-rc3 into usb-next 2013-05-27 11:00:52 +09:00
ohci-q.c USB: OHCI: Generic changes to make ohci-pci a separate driver 2013-05-30 21:36:03 +09:00
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: remove unnecessary platform_set_drvdata() 2013-05-16 17:47:18 -07:00
ohci-spear.c Merge 3.10-rc3 into usb-next 2013-05-27 11:00:52 +09:00
ohci-tilegx.c usb: host: ohci-tilegx: Remove redundant platform_set_drvdata() 2013-05-17 10:14:53 -07:00
ohci-tmio.c usb: host: ohci-tmio: Remove redundant platform_set_drvdata() 2013-05-17 10:14:53 -07:00
ohci.h USB: OHCI: add a name for the platform-private field 2013-06-03 11:03:18 -07:00
oxu210hp-hcd.c Merge 3.10-rc3 into usb-next 2013-05-27 11:00:52 +09:00
oxu210hp.h
…
pci-quirks.c USB: OHCI: Generic changes to make ohci-pci a separate driver 2013-05-30 21:36:03 +09:00
pci-quirks.h usb: fix build warning in pci-quirks.h when CONFIG_PCI is not enabled 2013-07-25 08:09:55 -07:00
r8a66597-hcd.c usb: remove use of __devexit 2012-11-21 13:27:17 -08:00
r8a66597.h usb/host/r8a66597: remove conditional compilation of clk code 2012-07-30 17:25:12 -07:00
sl811-hcd.c USB: remove remaining instances of USB_SUSPEND 2013-05-15 13:44:44 -04:00
sl811.h
…
sl811_cs.c drivers/usb: use module_pcmcia_driver() in pcmcia drivers 2013-03-15 12:26:38 -07:00
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: host: use platform_{get,set}_drvdata() 2013-05-30 21:32:54 +09:00
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: host: use platform_{get,set}_drvdata() 2013-05-30 21:32:54 +09:00
uhci-q.c USB: fix latency in uhci-hcd and ohci-hcd 2013-05-15 13:42:45 -04:00
xhci-dbg.c xhci: Remove BUG_ON in xhci_get_input_control_ctx. 2013-06-14 13:50:17 -07:00
xhci-ext-caps.h usb: xhci: add USB2 Link power management BESL support 2013-06-05 16:48:24 -07:00
xhci-hub.c usb: xhci: define port register names and use them instead of magic numbers 2013-06-05 16:47:21 -07:00
xhci-mem.c usb: xhci: add missing dma-mapping.h includes 2013-07-31 11:27:18 -07:00
xhci-pci.c usb: host: xhci: Enable XHCI_SPURIOUS_SUCCESS for all controllers with xhci 1.0 2013-07-25 08:10:02 -07:00
xhci-plat.c usb: host: xhci-plat: release mem region while removing module 2013-06-24 16:15:26 -07:00
xhci-ring.c xhci: fix null pointer dereference on ring_doorbell_for_active_rings 2013-07-25 08:10:09 -07:00
xhci.c usb: xhci: add missing dma-mapping.h includes 2013-07-31 11:27:18 -07:00
xhci.h Merge 3.10-rc5 into usb-next 2013-06-08 21:27:51 -07:00