This is a note to let you know that I've just added the patch titled [media] Revert "V4L/DVB: cx23885: Enable Message Signaled Interrupts(MSI)"
to the 2.6.39-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: revert-v4l-dvb-cx23885-enable-message-signaled-interrupts-msi.patch and it can be found in the queue-2.6.39 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <sta...@kernel.org> know about it. >From d7515b8866b60c9526d2d7af37ebcd16c3c5ed97 Mon Sep 17 00:00:00 2001 From: Jarod Wilson <ja...@redhat.com> Date: Wed, 29 Jun 2011 18:36:19 -0300 Subject: [media] Revert "V4L/DVB: cx23885: Enable Message Signaled Interrupts(MSI)" From: Jarod Wilson <ja...@redhat.com> commit d7515b8866b60c9526d2d7af37ebcd16c3c5ed97 upstream. This reverts commit e38030f3ff02684eb9e25e983a03ad318a10a2ea. MSI flat-out doesn't work right on cx2388x devices yet. There are now multiple reports of cards that hard-lock systems when MSI is enabled, including my own HVR-1250 when trying to use its built-in IR receiver. Disable MSI and it works just fine. Similar for another user's HVR-1270. Issues have also been reported with the HVR-1850 when MSI is enabled, and the 1850 behavior sounds similar to an as-yet-undiagnosed issue I've seen with an 1800. CC: Steven Toth <st...@kernellabs.com> CC: Kusanagi Kouichi <sl...@ac.auone-net.jp> Signed-off-by: Jarod Wilson <ja...@redhat.com> Acked-by: Andy Walls <awa...@md.metrocast.net> Signed-off-by: Mauro Carvalho Chehab <mche...@redhat.com> Signed-off-by: Greg Kroah-Hartman <gre...@suse.de> --- drivers/media/video/cx23885/cx23885-core.c | 9 ++------- 1 file changed, 2 insertions(+), 7 deletions(-) --- a/drivers/media/video/cx23885/cx23885-core.c +++ b/drivers/media/video/cx23885/cx23885-core.c @@ -2060,12 +2060,8 @@ static int __devinit cx23885_initdev(str goto fail_irq; } - if (!pci_enable_msi(pci_dev)) - err = request_irq(pci_dev->irq, cx23885_irq, - IRQF_DISABLED, dev->name, dev); - else - err = request_irq(pci_dev->irq, cx23885_irq, - IRQF_SHARED | IRQF_DISABLED, dev->name, dev); + err = request_irq(pci_dev->irq, cx23885_irq, + IRQF_SHARED | IRQF_DISABLED, dev->name, dev); if (err < 0) { printk(KERN_ERR "%s: can't get IRQ %d\n", dev->name, pci_dev->irq); @@ -2114,7 +2110,6 @@ static void __devexit cx23885_finidev(st /* unregister stuff */ free_irq(pci_dev->irq, dev); - pci_disable_msi(pci_dev); cx23885_dev_unregister(dev); v4l2_device_unregister(v4l2_dev); Patches currently in stable-queue which might be from ja...@redhat.com are queue-2.6.39/revert-v4l-dvb-cx23885-enable-message-signaled-interrupts-msi.patch _______________________________________________ stable mailing list stable@linux.kernel.org http://linux.kernel.org/mailman/listinfo/stable