Guess what? An automatic Kernel update this morning (presumably to fix 
some other problem) wiped out all that hard work. At least I only had to 
re-install what I did yesterday and didn't have to rebuild it all!

This is on HP Pavilion dm1 4300sa.

David

On 19/10/13 17:14, James Dafoe wrote:
> For those on Ubuntu 13.10 with kernel 3.11, problem is caused by changes
> to rt2x00pci kernel module:
> https://bugzilla.kernel.org/show_bug.cgi?id=61621. Patch has been
> submitted to kernel developers:
> https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/drivers/net/wireless/rt2x00/rt2x00pci.c?id=9483f40d8d01918b399b4e24d0c1111db0afffeb.
> To get it to work before those changes are included in Ubuntu, rebuild
> the kernel with the patch:
>
>
> Rebuild kernel with patch:
> ------------------------
> apt-get source linux-image-$(uname -r)
> sudo apt-get build-dep linux-image-$(uname -r)
> cd linux-3.11.0
> patch -p1 < ../rt2x00pci.diff
> fakeroot debian/rules clean
> fakeroot debian/rules binary-headers binary-generic
>
>
> Install:
> ------------------------
> cd ..
> sudo dpkg -i linux-headers*
> sudo dpkg -i linux-image*
> sudo reboot
>
>
> Copy everything between ===== to rt2x00pci.diff
>
> ==================================================================================================
> diff --git a/drivers/net/wireless/rt2x00/rt2x00pci.c 
> b/drivers/net/wireless/rt2x00/rt2x00pci.c
> index 76d95de..dc49e52 100644
> --- a/drivers/net/wireless/rt2x00/rt2x00pci.c
> +++ b/drivers/net/wireless/rt2x00/rt2x00pci.c
> @@ -105,13 +105,11 @@ int rt2x00pci_probe(struct pci_dev *pci_dev, const 
> struct rt2x00_ops *ops)
>               goto exit_release_regions;
>       }
>   
> -     pci_enable_msi(pci_dev);
> -
>       hw = ieee80211_alloc_hw(sizeof(struct rt2x00_dev), ops->hw);
>       if (!hw) {
>               rt2x00_probe_err("Failed to allocate hardware\n");
>               retval = -ENOMEM;
> -             goto exit_disable_msi;
> +             goto exit_release_regions;
>       }
>   
>       pci_set_drvdata(pci_dev, hw);
> @@ -152,9 +150,6 @@ exit_free_reg:
>   exit_free_device:
>       ieee80211_free_hw(hw);
>   
> -exit_disable_msi:
> -     pci_disable_msi(pci_dev);
> -
>   exit_release_regions:
>       pci_release_regions(pci_dev);
>   
> @@ -179,8 +174,6 @@ void rt2x00pci_remove(struct pci_dev *pci_dev)
>       rt2x00pci_free_reg(rt2x00dev);
>       ieee80211_free_hw(hw);
>   
> -     pci_disable_msi(pci_dev);
> -
>       /*
>        * Free the PCI device data.
>        */
> ==================================================================================================
>
> ** Bug watch added: Linux Kernel Bug Tracker #61621
>     http://bugzilla.kernel.org/show_bug.cgi?id=61621
>

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https://bugs.launchpad.net/bugs/1049466

Title:
  Need support of Ralink RT3290 wifi support

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