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linux/drivers/usb/host
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Linus Torvalds 09ca8adbe9 Revert "USB: don't explicitly reenable root-hub status interrupts" 
This reverts commit e872154921.

Andrey Borzenkov reports that it resulted in a totally hung machine for
him when loading the OHCI driver.  Extensive netconsole capture with
SysRq output shows that modprobe gets stuck in ohci_hub_status_data()
when probing and enabling the OHCI controller, see for example

	http://lkml.org/lkml/2008/7/5/236

for an analysis.

The problem appears to be an interrupt flood triggered by the commit
that gets reverted, and Andrey confirmed that the revert makes things
work for him again.

Reported-and-tested-by: Andrey Borzenkov <arvidjaar@mail.ru>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Acked-by: David Brownell <david-b@pacbell.net>
Cc: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 		2008-07-06 10:27:25 -07:00
..
Kconfig usb: r8a66597-hcd: Add support for SH7723 USB host 2008-06-09 16:04:12 +09:00
Makefile USB: ISP1760 HCD driver 2008-05-02 10:25:50 -07:00
ehci-au1xxx.c USB: EHCI: suppress unwanted error messages 2008-05-29 13:59:03 -07:00
ehci-dbg.c drivers/usb annotations and fixes 2008-04-28 10:03:31 -07:00
ehci-fsl.c USB: EHCI: suppress unwanted error messages 2008-05-29 13:59:03 -07:00
ehci-fsl.h ehci-fsl: fix cache coherency problem on system with large memory 2007-05-23 20:14:15 -07:00
ehci-hcd.c Revert "USB: EHCI: fix performance regression" 2008-05-29 19:43:27 -07:00
ehci-hub.c USB: EHCI: fix remote-wakeup regression 2008-05-29 13:59:04 -07:00
ehci-ixp4xx.c USB: EHCI: suppress unwanted error messages 2008-05-29 13:59:03 -07:00
ehci-mem.c Revert "USB: EHCI cpufreq fix" 2007-08-20 23:38:44 -07:00
ehci-orion.c USB: EHCI: suppress unwanted error messages 2008-05-29 13:59:03 -07:00
ehci-pci.c USB: EHCI: suppress unwanted error messages 2008-05-29 13:59:03 -07:00
ehci-ppc-of.c USB: EHCI: suppress unwanted error messages 2008-05-29 13:59:03 -07:00
ehci-ppc-soc.c USB: EHCI: suppress unwanted error messages 2008-05-29 13:59:03 -07:00
ehci-ps3.c USB: EHCI: suppress unwanted error messages 2008-05-29 13:59:03 -07:00
ehci-q.c Revert "USB: EHCI: fix performance regression" 2008-05-29 19:43:27 -07:00
ehci-sched.c USB: EHCI: fix bug in Iso scheduling 2008-05-29 13:59:04 -07:00
ehci.h USB: ehci - fix timer regression 2008-07-03 18:20:36 -07:00
isp116x-hcd.c USB: HCDs use the do_remote_wakeup flag 2008-04-24 21:16:53 -07:00
isp116x.h USB: isp116x: fix enumeration on boot 2008-03-04 14:57:43 -08:00
isp1760-hcd.c USB: isp1760: Assign resource fields before adding hcd 2008-06-11 17:06:33 -07:00
isp1760-hcd.h USB: ISP1760 HCD driver 2008-05-02 10:25:50 -07:00
isp1760-if.c isp1760-if iomem annotations 2008-06-04 08:06:01 -07:00
ohci-at91.c Revert "USB: don't explicitly reenable root-hub status interrupts" 2008-07-06 10:27:25 -07:00
ohci-au1xxx.c Revert "USB: don't explicitly reenable root-hub status interrupts" 2008-07-06 10:27:25 -07:00
ohci-dbg.c USB: remove dev->power.power_state 2008-04-24 21:16:41 -07:00
ohci-ep93xx.c Revert "USB: don't explicitly reenable root-hub status interrupts" 2008-07-06 10:27:25 -07:00
ohci-hcd.c OHCI: Fix problem if SM501 and another platform driver is selected 2008-07-03 18:20:35 -07:00
ohci-hub.c Revert "USB: don't explicitly reenable root-hub status interrupts" 2008-07-06 10:27:25 -07:00
ohci-lh7a404.c Revert "USB: don't explicitly reenable root-hub status interrupts" 2008-07-06 10:27:25 -07:00
ohci-mem.c USB: OHCI handles more ZFMicro quirks 2007-10-12 14:54:59 -07:00
ohci-omap.c Revert "USB: don't explicitly reenable root-hub status interrupts" 2008-07-06 10:27:25 -07:00
ohci-pci.c Revert "USB: don't explicitly reenable root-hub status interrupts" 2008-07-06 10:27:25 -07:00
ohci-pnx4008.c Revert "USB: don't explicitly reenable root-hub status interrupts" 2008-07-06 10:27:25 -07:00
ohci-pnx8550.c Revert "USB: don't explicitly reenable root-hub status interrupts" 2008-07-06 10:27:25 -07:00
ohci-ppc-of.c Revert "USB: don't explicitly reenable root-hub status interrupts" 2008-07-06 10:27:25 -07:00
ohci-ppc-soc.c Revert "USB: don't explicitly reenable root-hub status interrupts" 2008-07-06 10:27:25 -07:00
ohci-ps3.c Revert "USB: don't explicitly reenable root-hub status interrupts" 2008-07-06 10:27:25 -07:00
ohci-pxa27x.c Revert "USB: don't explicitly reenable root-hub status interrupts" 2008-07-06 10:27:25 -07:00
ohci-q.c USB: ohci - record data toggle after unlink 2008-07-03 18:20:36 -07:00
ohci-s3c2410.c Revert "USB: don't explicitly reenable root-hub status interrupts" 2008-07-06 10:27:25 -07:00
ohci-sa1111.c Revert "USB: don't explicitly reenable root-hub status interrupts" 2008-07-06 10:27:25 -07:00
ohci-sh.c Revert "USB: don't explicitly reenable root-hub status interrupts" 2008-07-06 10:27:25 -07:00
ohci-sm501.c Revert "USB: don't explicitly reenable root-hub status interrupts" 2008-07-06 10:27:25 -07:00
ohci-ssb.c Revert "USB: don't explicitly reenable root-hub status interrupts" 2008-07-06 10:27:25 -07:00
ohci.h USB: convert ohci debug files to use debugfs instead of sysfs 2008-02-01 14:34:52 -08:00
pci-quirks.c USB: replace remaining __FUNCTION__ occurrences 2008-04-24 21:16:55 -07:00
pci-quirks.h
…
r8a66597-hcd.c drivers/usb annotations and fixes 2008-04-28 10:03:31 -07:00
r8a66597.h USB: r8a66597-hcd: Add support for SH7366 USB host 2008-04-24 21:16:49 -07:00
sl811-hcd.c usb: use non-racy method for proc entries creation 2008-04-29 08:06:21 -07:00
sl811.h
…
sl811_cs.c some kmalloc/memset ->kzalloc (tree wide) 2007-07-19 10:04:50 -07:00
u132-hcd.c Revert "USB: don't explicitly reenable root-hub status interrupts" 2008-07-06 10:27:25 -07:00
uhci-debug.c USB: add urb->unlinked field 2007-10-12 14:55:19 -07:00
uhci-hcd.c USB: UHCI: disable remote wakeup when it's not needed 2008-05-02 10:25:57 -07:00
uhci-hcd.h USB: UHCI: disable remote wakeup when it's not needed 2008-05-02 10:25:57 -07:00
uhci-hub.c UHCI: fix port resume problem 2007-03-09 19:52:23 -08:00
uhci-q.c USB: replace remaining __FUNCTION__ occurrences 2008-04-24 21:16:55 -07:00